New in RISA-3D 16.0.5.0 (Jun 28, 2018)
- Corrected an error in the iteration of member design which caused an increase in solution time.
New in RISA-3D 16.0.4.0 (Jun 15, 2018)
- Resolved an issue introduced in the Windows 10 Semi-Annual Update (KB 4103721) which prevented Standalone Licensing functions from operating as expected.
- Added capability to designate member end support as cantilever or not cantilever in order to calculate the proper deflection ratio.
- Added an error message when two files are appended with different plate local axes settings.
- Corrected an issue which caused erroneous load transfer on members which were offset with the Analysis Offset tool and also had thermal load applied. • Corrected an issue where changing the cold formed steel code after running multiple solutions was not automatically clearing the stiffness matrix.
- Corrected display of Results toolbar after the Solve Again with Suggested Shapes is performed.
- Resolved overly conservative Suggested Members due to warping stress being included for torsionally released member ends.
New in RISA-3D 14.0.0.0 (Dec 5, 2015)
- Added Time History analysis:
- Direct Integration (HHT) or Modal Superposition solution options.
- Sinusoidal load generator with ramp up and coast down adjustments.
- Ability to import or export time history functions.
- Option to directly define boundary / soil spring damping.
- Joint trace plots with user plot controls.
- Ability to batch export joint trace data.
- Ability to modify the frequency and magnitude of forcing functions via spreadsheet input.
- Deflection animation views with ability to export MP4 or WMV movie files.
- Steel:
- Added an SJI virtual joist database and associated design list.
- Added missing AISC 6th edition double angle shapes to the AISC_Historic database.
- Fixed a problem where single angle KL/r was being incorrectly reported in the detail report for Canadian codes.
- Corrected an error where Hot Rolled steel shapes were not properly checked for compactness before calculating the compressive capacity of the member.
- Fixed an issue with concrete wall panels where the wrong governing load combination was reported if Pu>0.75 *Pc for slender wall checks.
- Concrete:
- Added the ACI 318-14 concrete code.
- Fixed a problem with concrete wall panels where the axial/bending checks were omitted and gave a "-1" value if there was a very high axial tension in the wall.
- Corrected an error where concrete columns with closely spaced nodes along the length caused the member detail report to shut the program down.
- Corrected an error in the Canadian CSA A23.3-04 design code shear capacity strain value calculation.
- Fixed an issue with the concrete column solver that could cause the interaction diagram capacity point to land inside of the interaction diagram when it should land directly on it.
- Corrected an issue where concrete wall panel interaction diagrams could be plotted incorrectly.
- Corrected an issue where shear strength for circular concrete columns was being calculated conservatively.
- Added Warning Messages that indicate that concrete wall design requires P-Delta for both in-plane and out-of-plane design.
- Fixed an error where some portions of the concrete wall panel detail reports were not using consistent units.
- Masonry:
- Added a masonry wall summary detail report.
- Fixed a problem in the masonry wall detail report where the shear strength due to steel reinforcement (Vs) could be negative.
- Corrected an error with the masonry wall shear reinforcement calculation. The gamma factor is now applied to the Fvm calculation.
- Corrected an error in the calculation of "a" for out of plane masonry wall panels.
- Wood:
- Added the AWC NDS-2015 (ASD) wood code.
- Added NDS-2015 Mechanically Graded (MSR & MEL) material databases.
- Added the 2015 AWC SDPWS diaphragm and wood shear wall panel schedules for both OSB and plywood.
- Updated the Custom Wood Materials spreadsheet to allow more specific material input (material Type and custom CF size factor).
- Updated Weyerhaeuser Trus Joist materials in the wood SCL material database per updated published values.
- Fixed an error where full sawn wood shape names were not properly reflecting the selected metric units.
- Corrected an issue where the custom wood material strengths were not properly reflecting the unit selection.
- Fixed an error where the Flat Use Factor (Cfu) was incorrectly calculated for square timbers.
- Corrected an error where the Canadian wood design System Factor (KH) was not properly applied to built up members.
- Fixed an error where the Canadian wood design System Factor (KH) would not save with the model.
- Corrected a problem with wood member allowable stress values being reported as zero graphically in the double-click dialog.
- Cold-Formed:
- Added 4" and 8" HDS shapes to the Dietrich Cold-Formed Shape database.
- Fixed a member capacity discrepancy when I-J end is flipped for CFS channel shapes.
- Aluminum:
- Fixed a discrepancy for the axial capacity when Ltorque is set to zero for aluminum members.
- Program Integration:
- Corrected an issue where RISA-3D can now read in RISASection files which are saved to a location other than the C drive.
- Corrected an issue that added extra dead load into a slab floor semi-rigid diaphragm once brought into RISA-3D from RISAFloor.
- Fixed the auto-generation of boundary conditions in walls over semi-rigid diaphragms in a combined RISAFloor/RISA-3D model.
- Fixed an issue in combined RISAFloor and RISA-3D models where end offsets were causing an incorrect error which prevented the model from solving in RISA-3D.
- Updated the program to allow export from RISA-3D to RISAFoundation if Tension-Only members are present.
- Added the ability to use HSS columns and beams for Vertical Brace and Chevron Brace connections for export to RISAConnection.
- Removed the restriction that a valid tnxTower license was required to open a .RT3 file. Now, only a valid RISA-3D license is required.
- Updated the defaults in the Dynamics dialog in a combined RISAFloor and RISA-3D model so that the "Include Load Combination…" option is unchecked.
- General:
- Added enveloped member detail reports for Hot Rolled steel, Cold Formed steel, Wood, Aluminum, and General material members.
- Added a Wall Panel Forces results browser.
- Added the display of the governing moving load step for wall panel design results.
- Added the ability to inactivate wall panels.
- Fixed an error where Canadian NBC 2005 seismic design period (Ta) values were not being saved with the model input.
- Optimized the processing of wall panel results to speed up the solution time by remembering the cut locations for each wall region and use it for every load combination.
- Corrected an issue where the AISC Direct Analysis Method amplification of second order effects could be mistakenly applied to models which did not include any members or materials which require the application of this method.
- Fixed a problem where the programs wouldn't close down properly from the taskbar.
- Fixed a problem where the wrong deflected shape was animated when viewing the animation prior to displaying the static deflected shape.
- Fixed an issue with the graphical display of enveloped reactions displaying with the opposite signage.
- Corrected an error where Euler Buckling members were giving full code check results even though they were only seeing a small amount of compression.
- Removed Planar Diaphragms from the program. Previous models' diaphragms are automatically converted to Membrane.
- Corrected the Internal Force Summation Tool for walls and slabs with unselected elements.
- Corrected the categorization of beam and column Extended End Plate Splice connections as moment connections in the Connection Rules spreadsheet.
- Fixed a problem caused by the Repeat Current Line command in the Connection Rules spreadsheet which caused the Connection Rules to become corrupted.
- Corrected an issue with the sorting tool in the Envelope Joint Reactions spreadsheet.
- Corrected an error where the Application Settings "Lock Isolated Instabilities" option would not apply until the program closed and re-opened.
- Fixed a problem with Help files not working when the program was installed to a folder with a period in the name.
- Corrected a graphical display and printing problem with Footing detail reports.
- Updated the orientation of a landscape image so the image is rotated counter-clockwise instead of clockwise.
- Corrected an error in the printout nomenclature for projected loads.
- Fixed an error where the time stamp was no longer showing up on printed reports.
New in RISA-3D 13.0.1 (Dec 5, 2015)
- Installation & Licensing Updates:
- Released an update version of Sentinel RMS License Manager to be compatible with Windows Server 2012 R2.
- Fixed the Network.ini behavior to allow for the file to be placed in the root RISA directory and still be seen by the client installs.
- Corrected an issue with tnxTower .RT3 models not opening in the current version unless the user had administrative privileges.
- Masonry Updates:
- Updated the "a" calculation for masonry in-plane strength design. Previously the "b" was always using the effective thickness. Now the program checks the "a" value against the length of the boundary zone. If the "a" is greater than the boundary zone then the effective thickness is used. If the "a" is less than the boundary zone then the nominal width is used.
- Corrected an error that could cause masonry out-of-plane bending capacity of an over-reinforced wall to be reported as zero.
- Corrected the out-of-plane stiffness calculation for partially reinforced masonry walls.
- Addressed an issue with masonry wall panels where the tolerance between the design UC and the user's max UC was increased to alleviate changes in reinforcement for the same load combination.
- Miscellaneous Updates:
- Added the ability to save a video of the animated deflected shape and mode shapes.
- Added links to all Warning Log messages that take you directly to the relevant section in the help file.
- Added new icon to "Select Marked Lines in the Model View" toolbar icon.
- Added a graphic verification that confirms if you are running in a demonstration version.
- Changed the name of the Global Parameters dialog to Model Settings. Changed the name of the Plot Options dialog to Model View Options. Changed the name of the Preferences dialog to Application Settings.
- Improved the calculation of Cb values in RISA-3D where the steel beam bracing is based on RISAFloor data.
- The detail report for footings in RISA-3D will now be updated/refreshed when switching between unit systems.
- Diaphragms at unselected floor levels no longer are rendered, making it much easier to investigate mutli-floor models.
- Added a Degenerate Plate Check tool to identify and fix plates that are not planar, or that are poorly shaped.
- Added a non-coplanar warning message to RISAFloor models with roof wind loads where the wind load can't be applied because the roof joints are not coplanar.
- Corrected an issue where the footer for PDF reports was not included on the last page.
- Corrected flexible diaphragm load attribution to no longer consider "Column," "VBrace," or "None" member types.
- Corrected an issue related to envelope solution reporting a moving load step for a non-moving load combination.
- Corrected an issue with the detail report display of KL/r values for tapered members in the AISC 13th / 14th editions. Code checks were correct, but KL/r values could be incorrect for yy value and show na for zz value.
- Fixed a rare memory allocation issue with the Joint Reactions calculation that could cause the program to shut down if an unstable model with multiple load combinations was run with tension-only members.
- Fixed a unit conversion error for wood members in tension per the Canadian design code.
- Corrected an issue where wall panel in-plane transfer parameters were not being updated when solving one LC from another. This affected the ΔNS value for a batch solution.
- Corrected an issue with the Delete Joints routine which could cause items (usually members) to reference joints that no longer exist.
- Corrected an issue when clearing an eigensolution between dynamic analyses that would cause the program to shut down.
- Corrected an issue that caused a pedestal in a RISAFoundation from RISA=3D integrated model to display incorrectly in Metric units.
- Corrected a problem where an error message flag caused negative capacity results for hot-rolled steel members.
- Corrected the DXF export display for metric Footings Details.
- Corrected an issue where RISA-3D was not automatically creating boundary conditions at the bottom of wall panel stacks.
- Fixed a problem where the internal PDF writer would print spreadsheet results as images rather than text, causing PDF sizes to be much larger than necessary.
New in RISA-3D 13.0 (Dec 5, 2015)
- Cold Formed Steel:
- AISI S100-12
- CANACERO-2012
- CSA S136-12
- Added code checks for back to back cold formed steel members.
- Added L-Torque to CFS members. L-Torque applies to AISI-12 C4.1.2 & C4.2.
- Updated unbraced length assumptions for CFS members.
- Masonry:
- Added the ACI 530-13 masonry code.
- Corrected an issue where the masonry wall panel shear check results where displaying values that did not correspond to the governing load combination.
- Fixed a problem with the calculation of "a" for out-of-plane strength design of masonry walls, where the program was producing bending capacities smaller than actual.
- Fixed an issue with the detail report for masonry walls where the shear and moment diagrams could be inaccurate if the wall thickness was changed during that session.
- Hot Rolled Steel:
- Added the AISC Historic shape database.
- Added Kaiser Bolted Bracket moment connections for Seismic Detailing code checks.
- Revised OCBF brace connection force reporting for seismic detailing results to be limited by the overstrength load combinations.
- Updated an error in the Chinese Single Angle Shape Database where the program was previously taking rx as rz.
- Wood:
- Added wood member design per the Canadian CSA Standard 086-09 design code.
- Added new glulam material databases per NDS Tables 5B and 5D.
- Improved error reporting for mismatched wood sizes/species/grades.
- Fixed a problem where a wood wall would give erroneous warnings about mis-aligned straps due to the presence of perpendicular walls.
- Fixed an issue where we were not properly filtering out the non-full height region results for wood wall panels with a segmented design.
- Corrected a problem with explicit wood header materials unintentionally changing when deleting lines from the Wood Materials spreadsheet.
- Aluminum:
- Added L-Torque to aluminum members when calculating the member's axial compression capacity for the ADM 2010.
- Concrete:
- Updated the dimensioning of column reinforcement in the detail report to account for the presence of stirrups.
- Updated the shear area of steel output to be on a per foot basis vs a per inch basis in the detail report.
- Corrected an issue with the viewing of detail reports for concrete round columns for the NZS code.
- Dynamic Solution Improvements
- Added a Ritz Vector dynamic solution option.
- Added a dynamics solution option for considering residual rigid response.
- Minor changes to simplify the dynamic solution dialog.
- Corrected the Spectra Scaling Factor calculation to include the importance factor.
- Corrected an issue where modes with a frequency higher than the last frequency defined in the spectra did not get assigned the proper zero period acceleration.
- Improved Install Behavior
- Improved ability of Network Client versions to find a license server.
- Reorganized all files (databases, defaults, etc) into new sub-folder locations.
- Added an option in the installer to install to the Program Files and Documents folders.
- RISAFloor/RISA-3D to RISAConnection Integration Improvements.
- Update to include new end plate moment configurations.
- Update to allow transfer of channel connections as beams and braces.
- Update to allow transfer of seismic moment connection parameters per AISC 341-10 and AISC 358-10
- Added a Connection Type field to the Connection Rules spreadsheet to filter list of connections.
- Corrected an issue with RISA-3D/RISAConnection interaction where having Z as your vertical axis could incorrectly produce member / connection orientation errors.
- Addressed erroneous RISA-3D and RISAConnection integration warning related to invalid member slope.
- Loading:
- Moving loads can now be included in a Batch + Envelope solution.
- Increased the width of the Load Combinations to allow for 10 Basic Load Cases per Load Combination.
- Added a feature to generate point loads per a specific moving load time step.
- Enhanced the Load Combination Generator in order for each RISA program to read its own default settings.
- Corrected load combination equations for the SBC 301 2007 Saudi Arabia code.
- Corrected an issue with the Append command that caused the Mx loads to turn into X direction loads.
- Corrected an error where nodes for the Perp member area load were being re-arranged in the spreadsheet.
- Wall Panels:
- Added the option to detach a wall panel from a diaphragm.
- Added a Point to Point Internal Force Summation Tool for Walls and Slabs.
- Enhanced the Wall Panel Editor with local dimensions for openings and design regions.
- General:
- Semi-Rigid diaphragms added to a linked RISAFloor ES/RISA-3D model.
- Added an option to the truss generator to allow for pinned end releases.
- Added a "Memory" to the Copy Loads with Members checkbox in the Copy Offset tool
- Improved the capability of tnx Tower to integrate with RISA-3D and RISAFoundation. Previously RISAFoundation input would not be read in after the .rt3 file was created.
- Common input spreadsheet entries will be merged for appended models.
- Linked the unbraced length and K factors for columns between RISA-3D and RISAFloor. Now the model will use the same values in both 3D and Floor instead of maintaining separate values.
- Corrected a units conversion issue with joint reaction COG calcs when units where changed with existing calculations.
- Fixed an issue where project grids were omitted from the creation of a flat file incorrectly.
New in RISA-3D 12.0.2 (Aug 14, 2014)
- Eliminated the need to manually edit the Windows registry for Network Client Installations.
- Improved the reporting of the local buckling limit state for Aluminum members.
New in RISA-3D 12.0.1 (Aug 14, 2014)
- Enhancements:
- Updated the design of the Wall Panel Editor dialog. This includes adding the saving of wall drawing grids and viewing wall panel nodes within the editor.
- Added an external utility to specify a license server for network client installs to use.
- Added the “No_Cars” and “Full” options to the Cooper-E80 loads in the Moving Load Database.
- Added a new unbraced length code "Lbyy" for Lcomp-top and Lcomp-bot, which allows you to reference and use the Lbyy unbraced length.
- Redefined the blank/empty condition for Lcomp-top unbraced length entry so that it now uses the full length of the physical member.
- Updated the Hot-Rolled Steel calculations for shear capacity. There are h/tw thresholds used where h = d - 2*k. The program was previously using h = d - 2*tf.
- Re-ordered the Member Spreadsheet so “Type” comes before “Design List”.
- Modified the lateral torsional buckling code checks for tapered members (per AISC Design Guide 25) to better handle cases with zero moment at the ends of a member.
- Added notes to report printing options when envelope results are unavailable for printing during a batch solution (or vice versa).
- The equations of local buckling per ADM-05 Section 4.7 are now referenced in the member Detail Report.
- The program now ignores axial forces less than 0.5% of the compression capacity for Aluminum member analysis in order to avoid major code check differences in members with axial force close to zero.
- Licensing enhancements:
- Added an auto-save during a Windows shut down.
- Updated the program to allow remote desktop connections for standalone versions.
- Created an install / initialization log file to better diagnose license commuting issues.
- Corrections:
- Corrected an issue with two-way area load attribution for cases with extremely light load or extremely small area load mesh size.
- Corrected an error in which units were not being shown in the Concrete Shape Database.
- Fixed a display issue with projected tapered wall panel surface loads.
- Fixed a few Plot Options settings that were not able to save into the defaults.
- Separated the color contour controls for the wall panels and plates.
- Removed the reporting of erroneous seismic detailing information from the Global Parameters portion of the printed report.
- Corrected an issue related to the number of decimals when printing Dynamics results.
- Resolved the missing graphics legend when printing in Windows 7.
- Corrected an issue where code checks for Cold Formed Steel sections with a user defined Cb value could over conservatively use a Cb of 1.0.
- Fixed incorrect code references for seismic detailing checks using the AISC 341-10 and AISC 360-10 specifications.
- Fixed an issue where RISAFloor/RISA-3D/RISAFoundation integrated models with generated lateral loads and flexible diaphragms did not pass all load category information into RISAFoundation.
- Fixed a problem with the Canadian automated Wind Load Generator where the wind pressures used for a rectangular structure were transposed.
- Fixed a problem with Custom Wood Material entry which could cause an erroneous message.
- Corrected an issue where Masonry Wall Panels could report incorrect reinforcement for in-plane forces if the Load Combination which controlled design did not have the maximum moment force.
- Corrected a problem with the shear reinforcement total steel area and capacity for concrete column design.
- Fixed a problem with the Contour Cutting Tool, where it would not work if only certain portions of the model were selected. Now it works in all cases.
- Corrected an issue with code checks on single angle members for the CSA-05 steel code.
- Corrected an error in Aluminum round tube analysis where the code check was calculated using force/stress rather than force/force.
- Corrected a bug in which the "Delete Displayed Loads on Items by Clicking the Items Individually" tool was not working for member area loads.
- Corrected an error in which printing single solution moving load results would cause a program crash.
- Corrected an issue where RISA-3D may not hand over the "distance to top of column" value to RISAConnection. This resulted in over conservative calculations for some column stiffener checks.
- Corrected a bug which caused a program crash when adding new lines to the Concrete Materials spreadsheet.
- Corrected a bug which caused a program crash when deleting lines from the Member Design Rules spreadsheet.
- Corrected an issue where member force diagrams could display with incorrect units if the unit settings were changed post-solution.
- For Aluminum design the program was incorrectly (conservatively) using the omega for tensile rupture rather than the smaller omega it was supposed to.
- Fixed a units problem with the headers in the Design Results spreadsheet for Aluminum if the units are not set as Standard Imperial.
- Fixed an issue where an irregular framing situation could cause a Wall Panel meshing problem.
- Corrected an issue related to the graphic display of enveloped Joint Reactions.
- Fixed a calculation error for the axial compression capacity of a tapered wide flange column.
- Fixed a problem in a combined RISAFloor, RISA-3D and RISAFoundation model where saved RISA-3D and RISAFoundation results could be erroneously erased.
- Corrected a problem with user entered values of Cb in Cold Formed Steel.
- Fixed a problem with the design of Concrete Shear Reinforcing in RISA-3D where RISAFloor interaction could cause some over conservative tie spacing.
- Fixed a Masonry Wall Panel problem where the allowable bending stress, Fb, in plane was using 1/3*f'm rather than 0.45*f'm for the 2011 ASD design.
- Corrected a tolerance problem with the Copy-Rotate tool.
- Fixed a problem for Cold Formed Steel members where fully braced members would provide a lower moment capacity than non-fully braced members.
- Corrected an issue with concrete L-beams that didn't indicate the correct negative reinforcement width in the detail report.
- Corrected an incorrect code reference for the bending capacity of singly symmetric Aluminum shapes.
- Removed the solution warning related to Tau_beta when using any code other than the AISC 13th and 14th Editions since it is not applicable for any other code.
- Removed an irrelevant error message related to inadequate wall panel reinforcing.
- Enhanced the Section Sets to better locate the RISASection database.
- Updated out of plane masonry design to de-couple the location of the axial and bending checks. Previously both checks were always taken from the location of maximum bending, rather than having them taken from separate locations when appropriate.
- Corrected a code check calculation error for an axial member in compression when using the AA ADM1-10: ASD Building Code.
- Fixed an issue where beam thermal force calculations are conservatively incorrect when using Metric units if the load combination factor is not 1.0.
New in RISA-3D 12.0.0 (Aug 14, 2014)
- Enhancements:
- Enhanced Report Printing options:
- Added the ability to include Detail Reports.
- Added the ability to include RISA Screen Shots/Graphics.
- Added the ability to include non-RISA images.
- Now the user can add a Custom Logo to the report header.
- Add the ability to view Batch and Envelope results simultaneously.
- Moving Load enhancements:
- Added the step location for moving load results to indicate where the moving load is located when it gives the reported results.
- Updated the moving load animation with play/pause control.
- Added the ability to view a specific moving load step in the moving load animation.
- Added the AREMA Chapter 15 Cooper E-80 (Railway loading) to the moving loads database.
- Added a Trim/Extend tool.
- Enhanced Concrete Design Rules to give a dialog with an image to show exactly what is being updated. An easier explicit reinforcement option is also available.
- Moved Basic Load Case dropdown to the top of all Apply Load dialog boxes.
- Added a Geodesic Dome to the High Level Generation options.
- Added compatibility with Windows 8.1.
- Updates to hold-downs and straps:
- Updated the wood wall hold-down databases, adding USP hold-downs and updating the design values for Simpson hold-downs.
- Added the ability to add the hold-down eccentricity to wood shear walls.
- Strap forces have been adjusted to account for the chord width.
- Wood Updates:
- Updated wood allowable stress values based on several NDS Addenda.
- Applied the 2007 Addendum to the AF&PA NDS-05/08 regarding wood design values, changing the Northern Species and adding Coast Sitka Spruce and Yellow Cedar.
- Added the Hem Fir North, No. 1 & Btr species grade combination to the wood material database.
- Clarified the CF (size factor) and Cfu (flat use factor) variables for visually graded timbers per NDS Table 4D.
- Added ASTM A1085 material and Design Lists to U.S. program defaults.
- Masonry wall updates:
- Added the Icr Factor and Effective Height Factor, K, to be used for masonry wall design and analysis.
- Added many additional pieces of information to masonry wall detail reports to make hand verification easier.
- Added maximum horizontal bar spacing provisions for masonry shear walls.
- Updated the masonry wall design output spreadsheets to show the governing code check value for both In Plane and Out of Plane results. Masonry gives multiple checks in the detail report for both combined checks and shear checks and previously only the first value was reported in the spreadsheet results rather than the maximum.
- Corrected an issue with staggered and both faces reinforcement for masonry walls where the bending capacity was overly conservative.
- Corrected an error where masonry wall panels would report the incorrect governing shear load for wall regions that require shear reinforcement.
- Corrected reporting of allowable shear and controlling load combinations.
- RISA-Revit Link enhancement: RISA wood walls now export sheathing and nailing information into Revit.
- General graphical interface updates:
- Added the ability to graphically select items from various input and results spreadsheets.
- Added a color coding option (3D/2D) based on maximum deflection ratio.
- Added the ability to turn off the input of Detailing Information used only for exporting information to a steel detailing program.
- Enhanced the Wall Panel Editor to allow deletion of Boundary Conditions.
- Added the ability to specify plate element size in the Rectangular Tank Generator.
- Added the ability to view Joint Reactions graphically with an Enveloped solution.
- Added the right-click menu option to "Select Items in Current View" to a number of results spreadsheets.
- Updated the Node/Member labeling so that labels are synchronized in combined RISAFloor/RISA-3D/RISAFoundation models.
- Moved registry information from HKey Local Machine to HKey Current User to better comply with Windows best practices.
- Add the 1.43 stiffness adjustment for service-level loads for concrete wall panels per ACI 318-11 Section R10.10.4.1.
- Enhanced reinforcement checks on members with custom rebar layouts to include ACI 10.5.3 checks.
- Revised dynamic results to now always show Mass Participation regardless of whether or not RSA was included.
- Updated general shape stress analysis to use the square-root-sum-of-squares method to combine orthogonal stresses on doubly symmetric shapes. Previously the orthogonal stresses were directly summed as a conservative approach.
- Enhanced both Indian 2007 and Euro 2005 code compression routines to treat Tapered WF members as welded.
- Corrections:
- Updated RISA-3D to work properly with a RISAFoot network version that requires the LS Query List registry setting to work.
- Corrected the printed report Projected Load nomenclature to be consistent with the terms used in the program.
- Graphical cover measurement for concrete members in the Detail Report have been corrected.
- Corrected an error where the program was not correctly applying the user-entered K value in the calculation of the compressive capacity per the CSA S16 Canadian Hot Rolled Steel design code.
- Corrected an issue with the spreadsheet reporting of strap forces where in certain instances the spreadsheet would report NC even if there were tension forces.
- Corrected an error in the calculation of strong axis bending capacity of WT members for the Canadian steel code.
- Corrected an issue where enveloped results may not correctly report envelope deflection ratios when local deflections are negative.
- Corrected a problem with permanently saving General Arbitrary shapes to the Shape Database.
- Corrected an issue with enveloped saved Cold Formed member results where the Phi factor was not being applied in the displayed moment capacities.
- Corrected a unit conversion issue with wood wall stiffness.
- Corrected an issue in Indian 2007 and Euro 2005 codes which could lead to incorrect buckling calculations for members with a flange thickness greater than 100mm.
- Corrected an issue in Euro 2005 code which affects the buckling calculations for S460 steel.
- Corrected a problem in the calculation of Mdv (moment capacity for high shear) per the IS 800: 2007. Capped "beta" value at 1.0.
- Rectangular Tank Generator changes:
- The Generator now uses full length physical members instead of the piece wise members previously generated.
- Corrected an offset error with single angles and channels.
- Corrected an orientation error with channels.
- Corrected a problem that was caused by running the envelope solution in RISA-3D under RISAFloor. If there were gravity-only walls and an envelope solution was run in RISA-3D the program would shut down.
- Corrected an issue where over strength load combinations were being included in code checks even though the load combination material flag was not checked.
- Corrected calculation of the Mv factor for the NBC 2005 Seismic Load Generation.
- Re-enabled the "Adjust Local Axis" option for the Copy-Rotate Tool. This was accidentally disabled in a previous release.
- Corrected an issue that causes the units in RISAFoundation to be off when both the units are changed and an Undo is performed in RISAFloor or RISA-3D in a combined RISAFloor/RISA-3D/RISAFoundation model.
- Corrected an error where unselected loads were being deleted when the "Delete Selected Loads" tool was used.
- Corrected a unit conversion issue with Joint Reaction Center of Gravity calculations when units where changed with existing results.
- Corrected an issue where a load combination with a moving load and over strength factors would cause a crash.
- Corrected an issue with seismic dynamic loads applied as line loads where some of the loads would not be considered.
- Corrected an issue where some wood members were not properly displaying the design values in the Properties tab of the Member Information dialog.
New in RISA-3D 11.0.2 (Aug 14, 2014)
- Enhancements/Corrections:
- Enhanced modeling with wood materials:
- Revised dialogs for selecting and adding wood materials to be more user-friendly.
- Easier access to the Custom Wood Materials spreadsheet.
- New dialogs allow the user to view/confirm the material design properties.
- Updated the structural composite lumber design lists so that shape selections match proprietary products.
- Added the U.K. National Annex provisions to the 2005 EuroCode Hot-Rolled steel design (NA to BS EN 1993-1-1:2005).
- Custom moving loads are now save with the input file.
- Improved animation window controls.
- Added automatic save of RISAFloor results when transferring a model from RISAFloor to RISA-3D.
- Improved the accuracy of CSA S16-09 member capacity calculations for Class 3 and Class 4 members.
- Updated the display of the units for Mass.
- Corrected a bug in Cold-Formed Cb calculations where Cb could change (conservatively) in a non-AISC Hot-Rolled steel code was selected.
- Corrected an error in the CF factor calculation for 12" wide members.
- Corrected a problem with deleting distributed loads using a spreadsheet.
- Updated the masonry P-Little Delta procedure to properly account for all support conditions.
- Corrected an issue where 64-bit network clients were not displaying the Key ID in the Help-About dialog.
- Fixed values for H and HN sections in the Chilean Steel shapes database.
- Corrected a member optimization issue in RISA-3D under RISAFloor where RISA-3D would not recommend smaller shapes for members which were now well below failing due to a decrease in loads.
- Corrected an issue with the Australian steel code where members with axial force greater than Euler buckling capacity would calculate a negative moment capacity.
- Fixed a refreshing issue with General shapes where they would not show up within the "Assign Shape Directly" dialog.
- Corrected a bug in which sorting the member force results for a concrete member would cause the detail report force diagram to change.
- Fixed an issue with concrete and masonry walls where the code check would incorrectly produce "INF" or some design forces could be reported as zero.
- Fixed an issue that didn't remember user entered seismic Ta for Canadian codes.
- Corrected DXF grids import to include arcs.
- Corrected errors in the Chinese shape database for the following shapes: TM170X250 and TW150X300A.
- Corrected a problem with reading CIS/2 files containing quotation marks.
- Fixed an issue with the Cm calculation for out of plane concrete wall design. The program was previously using a value of 0.6 when it should have been using 1.0.
- Fixed an issue that caused a major error while using the Out-of-Plane-Flip tool on a wall panel.
- Fixed a tolerance issue which could cause the seismic self-weight calculation to be incorrect when member area loads are used as part of the self-weight.
- Corrected an issue where h/w ratios for wood walls with multiple openings could be calculated incorrectly for the FTAO design method.
- Corrected a problem with exporting models using Rigid Links to DXF.
- Removed "Trimmer" from wood wall opening detail reports, as it had no impact on the design.
- Fixed a units issue with the Deflection Ratio value on the detail report for out of plane concrete wall design. Previously this ratio was conservatively off by a factor of 12.
- Fixed an issue with out of plane design of concrete walls where the in plane axial force (entire wall) was being used instead of the per foot axial force.
- Corrected an issue with lintel forces for masonry walls where the design ignores any applied forces if the lintel depth went to the top of the wall.
- Fixed an issue that didn't save the dynamic solution inside RISA-3D from under RISAFloor.
- Fixed an issue with out of plane concrete walls where the minimum moment was not being used in all cases.
- Fixed an issue where some footings would not be designed if the allowable soil bearing was set to "Gross."
- Corrected an error where a RISA-3D model under RISAFloor would not solve a dynamic solution unless the user had previously used the Seismic Load Generation to generate nodes on the diaphragm.
- Corrected an error where user-input seismic parameters were being incorrectly reported on the printed output.
- Corrected a display bug in which the graphical display dimensions for a General Arbitrary shape did not update when the shape properties were edited.
- Corrected an issue with shear and deflection diagrams of single angles with nodes along the length of the physical member.
- Fixed an issue with the axial, shear and moment enveloped diagrams for concrete walls in the out-of-plane direction.
- Corrected an error in which area loads were not being properly copied when using the Mirror Copy command.
- Changed Le/d calculation for SCL wood members to use actual rather than nominal dimensions.
- Corrected an issue with ACI threshold torsion calculations which caused them not to be reported for envelope solutions.
- Updated Append behavior to compare the Section Set information between two models before appending. Previously a member defined as Section Set 1 in one model would become Section Set 1 in the 2nd model even if the two shapes were not the same.
- Corrected a minor issue with AISC 13th and 14th editions where incorporating torsional shear stresses into the code check was overly conservative.
- Corrected an issue where outdated information was sent to RISAConnection from RISA-3D and/or RISAFloor due to inconsistencies.
New in RISA-3D 11.0.1 (Aug 14, 2014)
- RISA-Revit Link Updates:
- Compatible with RISA-Revit Link 2013 version 2
- Added BIM ID's for RISAFloor slab openings.
- Fixed a wall panel issue where changes made to walls would affect all walls except one.
- RISAConnection Integration:
- Corrected column connection orientation when using the RISAFloor/RISA-3D to RISAConnection integration. Previously the integration was always producing a connection framed to the flange.
- RISAConnection/Tekla Structures Link Updates:
- Added compatibility to support the upcoming release of the RISAConnection/Tekla Structures Link
- Cold-Formed Steel Updates:
- Added AISI provision B4 to the check of the flanges for weak-axis bending.
- Added the full elastic computation for the "Is" values in the AISI B4 provision.
- Fixed an error in the calculation of Sey for ZS shapes.
New in RISA-3D 11.0.0 (Aug 14, 2014)
- Enhancements:
- Added 64-bit version capability:
- The program will run in 64-bit addressing space, expanding Windows memory limits.
- Allows for increased program limits when running on a 64-bit operating system.
- Added the ability to import a DXF underlay; Allows users to snap to the underlay when drawing members and walls.
- Added the AF&PA NDS-12 (ASD) wood code.
- Added the ACI 530-11 (ASD & Strength) masonry code:
- Added many supplemental values and extra messaging to masonry wall detail reports.
- Added option for masonry walls to define the wall area (RMEH or NCMA). Prior versions used only the Reinforced Masonry Engineer Handbook.
- Added the AISI S100-10 (ASD & LRFD)/CSA S136-10: LSD/CANACERO 2010 (ASD & LRFD) cold-formed steel code.
- Added the AA ADM1-10 (ASD & LRFD) aluminum code.
- Added design for tapered members per AISC Design Guide 25.
- Added the AISC 341/358-10 seismic design provisions.
- Added the CSA S16-09 Canadian steel code:
- Added code checks for class 4 sections.
- Added code checks for single angles for both bending and tension/compression.
- Updated the Canadian steel database per the 10th edition manual.
- Added the NBC 2010 Canadian building code provisions:
- Added wind and seismic load generation.
- Added the design response spectra.
- Added the load combinations (service and strength) to the Load Combination Generator.
- Reduced start-up times by using a faster shape-to-database comparison.
- Updated hold-down databases for newer Simpson catalogs (per IBC 2006/2009).
- Added a Virtual Joist Girder database and design list per SJI recommendations.
- Added the ability to perform concrete member design for overstrength load combinations.
- Added an upper limit on design moment for ordinary moment frames per AISC 341 commentary Section 11.2a.
- Increased the maximum number of modes allowed in a dynamic solution from 500 to 2,000.
- Added new connection features for integration with RISAConnection 3.0:
- Added the AISC 360-10 (ASD & LRFD) code for RISAConnection integration.
- Added support for slightly non-concentric braces.
- Added new Connection Types to the Connection Rules spreadsheet.
- Corrections:
- Corrected an issue which would cause color-coded code checks to display all black for concrete members.
- Corrected an issue which would cause the program to shut down if viewing color-coded code checks.
- Corrected an issue where seismic factors (Rho, Omega, Sds) were not properly applying to structure self weight. These values were using a value of 1.0 to factor the self-weight portion of the load.
- Corrected the calculation of the weak axis bending capacity of non-compact and slender channels designed to AISC 13th or 14th edition steel codes.
- Corrected an issue with the seismic detailing calculations where the horizontal component of the unbalanced brace force (for Chevron brace frames) was reported incorrectly.
- Corrected an issue where wood wall design results were not given for a wall with two regions stacked on top of each other with no diaphragm present.
- Corrected an issue where the 2b/h calculation for slender piers on segmented wood walls could be incorrect for version 10.
- Corrected an issue where the program was incorrectly calculating some cross section properties for the principal axes of single angles.
- Corrected an issue with area load attribution which caused odd transient area loads.
- Corrected a calculation error relating to minimum vertical reinforcement in concrete shear walls.
- Corrected an issue where seismic web compactness check could erroneously fail for brace members.
- Corrected some issues with concrete column optimization which could cause overly conservative code checks.
- Corrected an issue where an install path with long file / directory names could cause the program to fail to launch when using file association.
- Corrected issues related to masonry wall design regarding unreinforced walls.
- Corrected a problem with RISA-3D clearing results when using the Director tool to switch between RISAFloor and RISA-3D.
New in RISA-3D 10.0.1 (Aug 14, 2014)
- Enhancements:
- Enhanced performance on 64-bit operating systems to allow use of up to 4 GB of memory.
- Added spacing and minimum steel reinforcement area checks for concrete walls.
- Added Seismic Design Rule selection to the member double click dialog.
- Added ability to do concrete member design for overstrength load combinations.
- Added automatic flipping of gravity loads and diaphragms to the Switch Vertical Axis tool in the Tools menu.
- Added the calculation of Cv for shear capacity of single angles for the AISC 14th Edition.
- Principal axis notation was added to the detail report for aluminum single angles.
- Added detail report warnings for members and wall panels when these elements are not considered for overstrength load combinations.
- Enhanced spreadsheet behavior so that column widths will be remembered when they are updated.
- Simplified database shape comparisons to reduce program start-up time.
- Updated the Draw Wall Panels dialog to remember a previous action.
- Updated the program to account for story shear in the Seismic Detailing Panel Zone shear demand calculations.
- Updated saving results behavior when working in linked programs so that clicking the Save Results button once will save the results for all linked programs.
- Updated the Copy Rotate tool default settings and updated the Status Bar to better prompt the user.
- Added validation to confirm that all Design Rules are valid upon opening a model.
- Changed member detail reports to show AISC-style report when AISC design is used. This happens when foreign codes are unclear on provisions.
- Updated the model deflected shape to now include solid elements. Previously when viewing the deflected shape the solids were not visible.
- Updated wood wall header output to state whether the header is controlled by bending or shear.
- Added a restriction on single angles such that "depth" leg cannot be shorter than "width" leg.
- Renamed AISI NAS-07 to S100-07 based on code naming conventions.
- Removed the upper limit of 3.0 on Cb for bending capacity for the AISC 14th Edition.
- Removed moment magnification for the ACI 318-08 code, as a P-Delta analysis is required.
- Removed a limitation on rebar Fy on the Concrete tab of the Materials spreadsheet and added a warning for ACI codes when rebar Fy exceeds allowable.
- User-defined wall panel boundary conditions are now consistent across masonry, concrete, and general wall types.
- Made the calculation of the total seismic weight consistent between the Spectra Scaling Dialog and the Insert Seismic Loads dialog. Both now compute any load between the diaphragms (or base and 1st floor diaphragm) based on the distance of the load to the floor or base.
- Removed Ltorque from the bending capacity calculations for AISC 13th and 14th editions. Ltorque now only affects axial capacity calculations.
- Changed column Euler buckling slenderness violations of AISC 341 Seismic Detailing from a failure to a warning.
- Updated shear panel optimization and hold-down selection in wood walls to be based on wall design rule's Max Shear Check and Max Bending Check respectively. Previously this value was always taken as 1.0.
- Updated masonry design for both ASD and Strength so that the Wall Design Rules - Max Shear Check column works properly. Previously it was assumed that the maximum shear check was always 1.0.
- Updated the M2 calculation for out of plane design of concrete walls so that there is an interior and exterior value. Previously the maximum value was being used in both instances.
- Updated the calculation of the M2 moment for concrete wall panels at each section along the height of the wall. Previously it was taking maximum M2 moment at any place along the height of the wall and using it for every section.
- Updated Chilean Steel database per Acero Diseño Estructural Manual – Segunda Edicion
- Corrections:
- Corrected an issue with network license validation that could cause a slow down with the user interface.
- Corrected an issue where network client computers could not find databases when launching the program in demonstration mode.
- Corrected the bending capacity of double angles in the AISC 14th Edition.
- Fixed an issue in the ASCE 7-10 Seismic Global Parameters where Omega and Rho could not be anything other than 1.0.
- Fixed a unit conversion issue with the Material Take Off output so that the volume of concrete is only based on the density unit.
- Corrected a problem where wall panel stiffness was incorrectly overestimated when using metric units due to a unit conversion error.
- Fixed a problem with the load meshing for flexible diaphragms that would produce error code 2136.
- Fixed the Load Combination Generator so that the notional load direction will always be the same as wind load direction for an individual combination.
- Fixed a metric units problem with masonry lintels where check to make sure that the reinforcement fits within the member geometry was not working correctly.
- Fixed the flexible area load attribution in a RISA-3D under RISAFloor model so that inactivated members do not have load attributed to them.
- Fixed an issue with the calculation of the tributary area of double angle members for Open Structure area loads.
- Corrected a load attribution issue with area loads and metric units not matching the same attribution as imperial units, although total load was still correct.
- Corrected an issue where concrete columns in tension would not design shear reinforcement spacing in the center span region.
- Fixed the display of incorrect governing equation numbers for bending capacities on flat aluminum plates in the detail reports.
- Corrected an issue where the Web Yielding limit state could be overestimated in the continuity plate checks of the Seismic Design results.
- Corrected an issue where the phi factor was not being applied for Web Buckling calculations within the Seismic Design results.
- Updated an issue with wood wall panel optimization where having multiple design rules could cause an individual wall to be designed to a different wall design rule.
- Fixed an issue with masonry walls where the stiffness was not being reset when you make a change in the Wall Design Rules spreadsheet.
- Fixed multi-story wood walls in RISA-3D only models so that you would get results for all regions.
New in RISA-3D 10.0 (Jun 4, 2012)
- Enhancements:
- Added AISC 360-10 (14th Edition) ASD and LRFD code checks for hot rolled steel members.
- Added ASCE 7-10 to the Wind / Seismic Load Generation and to the Load Combination Generator.
- Added ACI 318-11 code checks for concrete members.
- Added ability to assign openings in concrete wall panels.
- Added a user defined torque length to the design properties for AISC 360-05 (13th Edition) and the AISC 360-10 (14th Edition).
- Added Canadian Parametric Design Spectra per NBC 2005 to the Response Spectra Library.
- Added CSA S136-04 code checks for cold formed steel members.
- Added CSA S136-07 code checks for cold formed steel members.
- Expanded the Torsional Buckling / Flexural Torsional Buckling code checks for AISC 360-05 (13th Edition) and AISC 360-10 (14th Edition) to apply to shapes other than WT's and LL's.
- Added a Copy Offset tool.
- Added Load Combination Generation files for the Saudi SBC 301-2007 code.
- Added the ability to print Response Spectra and Moving Load input data.
- Added tension code checks for Aluminum single angles.
- Added hydrostatic loads to the circular tank generation utility.
- Modified the treatment of masonry and wood Wall Panels to automate stiffness updates within the optimization / Suggested Shapes results.
- Added the location of demand and capacity points on interaction diagrams for concrete walls.
- Added a Tools-Preferences option to add the individual Load button options back to the Data Entry Toolbar.
- Improved the graphical Copy tools.
- Improved masonry Wall Panel definitions to be based on Wall Design Rules so that it will be easier to change multiple walls at the same time.
- Improved reporting of Overturning Moment Safety Factors when RISAFoot runs from within RISA-3D. (This affects Load Combinations built with Basic Load Case numbers rather than load Categories).
- Improved / reorganized the Solution tab of Global Parameters to be more user-friendly and easier to read.
- Added the ability to click a joint to define the origin of the copy-rotate or move-rotate commands.
- Added the ability to flip local axes of Wall Panels without flipping the opening locations.
- Added the ability to print section properties from the Shape Database dialogs.
- Added optional ability to copy headers with spreadsheet data. (Optional based on a Tools-Preference setting.)
- Updated properties in the Cold Formed Steel Database (based on bend radius changes).
- Improved the code checks for concrete columns for cases where the column is subjected to net tension plus bending.
- Removed the obsolete Trade Arbed database from the installation routines.
- Corrections:
- Corrected an error with Canadian NBC 2005 Seismic Load Generation where the program was using the Sa(0.2) value instead of the S(0.2) value.
- Corrected an issue where shapes from older RISASection files (version 1.1 and earlier) had issues with shear deformation.
- Corrected an issue with distributed loads on tapered Wide Flange steel members where a portion of the distributed load could get ignored.
- Corrected an issue with Canadian design of single angles where compression code checks were reporting a value of 0.0 rather than 'No Calc'.
- Corrected an issue related to aluminum databases and single angle flexural-torsional buckling code checks.
- Corrected an issue with the aluminum code related to the allowable bending stresses for rectangular tubes subjected to a minor axial force.
- Corrected and issue where seismic detailing slenderness limit failures were reported in the wrong column of the Seismic Design Results spreadsheet.
- Corrected a seismic design results issue where the connection design moments for SMF frames were being conservatively reported at the center line (rather than the face) of the column.
- Corrected some issues related to how overstrength load combinations were included in an envelope solution.
- Corrected an issue where Notional Load Generation was not properly accounting for effects of openings in wall panels.
- Corrected an issue with the Load Combination Generator where the program was producing extra (and unnecessary) load combinations.
- Corrected a units conversion issue related to rebar strength for custom rebar layouts.
- Corrected a units conversion issue related to thermal loading on plate elements.
- Corrected an issue where several Global Parameters values were omitted from printed output or were printed incorrectly.
- Eliminated lateral-torsional buckling code checks for Cold Formed HU sections bent about their y-y axis.
- Fixed a units conversion problem with RISASection shape properties used in RISA-3D/RISAFloor.
- Corrected an issue with the RISA-Revit Link which could result in loads being deleted during a round-trip.
- Corrected a display issue where envelope solutions for cold formed steel were not properly showing phi and omega values.
- Corrected an issue where the Replace and Resolve function was not properly interacting with the graphical Exclude feature.
- Corrected an issue with the shear code check of multi-span concrete columns where the controlling shear location was always assumed to be at the end of the member.
- Corrected an issue where the 'j' value displayed in a masonry wall detail report could be erroneously shown as 1.0. (This was a display issue only; the calculations were correct.)
- Corrected an issue with the calculation of As_max for the IS456 Indian concrete design code.
- Corrected an issue where the Gupta modal combination method would cause a wall panel model to crash during an Response Spectra Analysis solution.
- Corrected an issue with Open Structure area loads where round members were receiving over-conservative loading.
New in RISA-3D 9.1.1 (Jun 4, 2012)
- Added integration with RISAConnection for hot rolled steel connection design.
- Made a number of enhancements associated with database shape values and presentation:
- The AISC Database has been updated to include new shapes in the 13th Edition AISC Manual.
- The section properties of AISC shapes have been updated to reflect new values in the 13th Edition AISC Manual.
- When installing over an older version, the database of obsolete AISC shapes is retained as an “AISC_Backup” shape database.
- AISC shapes in existing models, which have section properties that differ from current database values by less than a specific tolerance, are automatically assigned the new section properties. However, if the difference in section properties exceeds the tolerance then the existing section properties are retained with a new shape name which has an _HRA suffix.
- Added "k" values to hot rolled steel databases to allow for better integration with RISAConnection
- Design Lists updated for the new AISC shapes. Backups of older design lists are saved with a *.bak extension.
- Enhanced integration with RISASection (version 2.0) to allow for code checks on imported Hot Rolled Steel shapes
- Added a Print function to the Edit/View dialog in the Shape Database.
- Enhanced the graphical rendering of General and Arbitrary Shapes to allow for easier identification of stron and weak axes
- Added the IS 800-2007 Indian Steel code.
- Added tie down forces and shear forces to the Wood Wall In-Plane results spreadsheet.
- Updated the cold-formed steel databases to be fully editable.
- Improved the processing time for the creation of results browsers or flat file printing.
- Improved the "Model Merge" utility so that the trim/extend wall panels option will also correct for non-coplanar walls.
- Improved the interaction diagrams for concrete wall panels to make them more continuous.
- Added an upper limit to the lip/width ratio for cold formed steel lipped channel sections in order to properly calculate k (the plate buckling coefficient).
- Added a warning log message for masonry walls that use uncommon material strengths with uncommon block sizes. Self-weight will not be accounted for these walls and must be applied manually.
- Added a graphical Re-Labeling options so that users can selectively re-label existing items based on the current selection state. This also allows user to apply a different prefix to selected items.
- The EuroCode for Hot Rolled Steel (1993-1-1) now uses the AISC Cb formula to calculate the C1 coefficient for beam lateral-torsional buckling. this variable will be overridden when the user enters a value in the design data for the member.
- Fixed an issue with seismic detailing checks so that the "frames into column strong axis" check will now only be performed for beams with fully fixed ends.
- Fixed an issue where running a load combination with a moving load in a model with concrete walls would cause an error.
- Corrected an issue regarding member forces calculated from a Response Spectra Analysis when using the Direct Analysis Method which could result in un-conservative values for member moments and code checks.
- Fixed a problem that caused an overstrength error message and no results to be displayed when a moving load was solved.
- Corrected an issue with calculation of seismic and notional loads where the self weight of walls was not being properly attributed to intermediate diaphragm levels. Issue existed only for RISA-3D models that were not linked to RISAFloor.
- Corrected an issue where RSA load combinations were not properly triggering the AISC Seismic detailing calculations.
- Corrected an issue where applying seismic detailing to Hbrace members caused a results browser error.
- Corrected an issue where the Seismic Detailing Results would not display properly for members defined with the function set to "gravity only".
- Corrected the calculation of effective section modulus for Mny in HU cold-formed shapes.
- Corrected an issue where point moments could be lost if applied at the same end of a member as a pinned moment release.
- Corrected a problem with wall surface loads that touched opening edges, which caused results to be reported as infinity.
- Fixed miscellaneous errors with detail reports for concrete beams when custom shear rebar layouts were used
- Fixed an issue where concrete walls would not be designed if Z is the vertical axis.
- Fixed an issue with wood walls where the header option for "Same as Opening" was not using the same material from the copied header.
- Fixed an error which could cause the Custom Wood Species counter to be off, preventing the model from opening.
- Updated the HDU wood hold-down databases to correct the HDU14 5-1/2" & 7-1/4" capacity values. The update will overwrite the old file and back it up.
- Fixed a Units issue with the chord capacity for wood shear walls
- Fixed a problem that caused wall chord tension to be reported when there was none.
New in RISA-3D 9.1 (Jun 4, 2012)
- Enhancements:
- Added Concrete Wall Panels per ACI 318-05 and ACI 318-08 specifications:
- Ability to design reinforcement (both shear and axial/bending).
- Ability to design reinforcement for out of plane wall loading (axial bending and shear)
- Provides story deflections for each story in a multi-story wall.
- Added Seismic Detailing code checks per AISC 2005:
- Moment Frame design per AISC 358 (RBS, BFP, BUEEP, BSEEP, WUF-W)
- Strong Column / Weak Beam calculations
- Column checks for connection forces (i.e. continuity plate stiffeners)
- Calculation of required strength and stiffness of beam bracing
- Panel Zone column checks
- Concentrically Braced Frames per AISC 341
- Calculation of unbalanced forces for V and inverted V braces.
- Single Angles:
- Added ability to designate that axial code checks should be based on geometric or principal axis buckling. See the Help File Single Angle sub-topic of Member Results for more information.
- Added bending code checks for single angle members based on bending about geometric or principal axes. See the Help File Single Angle sub-topic of Member Results for more information.
- Made changes to the Masonry and Concrete Materials spreadsheets:
- Moved the definition of the yield strength of the reinforcement (Fy) from the Design Rules spreadsheet to the concrete and masonry tabs of the materials spreadsheet.
- Moved the masonry self weight definition from the Design Rules spreadsheet to the Materials spreadsheet.
- This could result in reduced backwards compatibility of Concrete and Masonry Materials with older versions of the program.
- Added a number of improvements for the Cold Formed Steel code checks
- AISI 2004 Cold Formed Steel code
- AISI 2007 Cold Formed Steel code
- Added Mexican (Canacero) 2004 and 2007 codes
- Updated the AISI and SSMA database shape properties to reflect the new 2007 code provisions.
- Added Omega and Phi factors to cold formed steel detail reports and spreadsheets.
- Added AF & PA NDS-08:ASD Wood code.
- Added ACI 530-08 Masonry code.
- Added ACI 318-08 Concrete code.
- Added back in the ability of the program to launch in "Demo Mode" when a license is not detected. Feature now requires the creation of a Demo sub-folder.
- Added a tool to flip the local axes of existing wall panels.
- Modified the CL calculations for glu-lams with d/w < 2.0.
- Added the ability to graphically display wall panel Design Rules.
- Added the Cb calculation for cold formed steel members.
- Simplified the interface by splitting the Design Rules spreadsheet into a Wall Design Rules and a separate Member Design Rules spreadsheet. This could result in reduced backwards compatibility of design rules with older versions of the program.
- Simplified the Data Entry Toolbar bar moving the access of the individual load spreadsheets to be within the Basic Load Cases spreadsheet.
- Added P-Delta calculations for wall panels.
- Removed internal wall panel joints from the program limit for maximum number of joints.
- Improved the graphic display of sloped distributed loads to be more legible.
- Improved the treatment of wood wall schedules when using the Append feature.
- Improved wood wall hold down reporting in the detail report for cases where the allowable hold down force was adjusted for load duration factor or such.
- Added a Note/Warning to the detail report to alert the user when a hold down requires a chord size greater than that specified for the existing wood wall.
- Changed the stiffness used for dynamic analysis to ignore the Direct Analysis method stiffness reductions.
- Changed the Modify Member Properties dialog to allow for independent adjustment of member types, material, and design list.
- Changed the Modify Member Design dialog to be more user-friendly by introducing group boxes and re-organizing existing data.
- Improved the code checks for perforated wood shear walls by adding a check for NDS SDPWS section 4.3.5.3 (maximum unit shear capacity). This only affects walls panel with +1370plf shear capacity.
- Removed the KL/r limitation check for members that are marked as "tension only."
- Updated the ASCE 7-05 minimum base shear calculation to account for Supplement #2(0.044*I*Sds > 0.01).
- Added the ability to append R3D or RT3 files into an existing RT3 file.
- Improved the shear code check reporting for masonry walls with a shear stress greater than Fvm. Previous results were accurate, but could be misleading about the location of the governing code check.
- Corrections:
- Corrected an issue with the Tee beam flange width calculations for the Canadian Concrete code. Previously, slab thickness (conservatively) and span length (non-conservatively) limits were based on the ACI code.
- Corrected an issue with the Chinese shape database where the x-bar values for channels were incorrect and were preventing code checks from being calculated.
- Corrected an issue with the Euro Steel code checks for class 4 (slender) sections which could result in over conservative code checks.
- Corrected an issue where Floor models with flexible diaphragms would not properly solve an envelope solution which contained moving loads.
- Corrected an issue with the axial code check of aluminum tubes and Rectangular members where the allowable axial stress was incorrectly being multiplied by the member area.
- Corrected a tolerance issue with the code checking of concrete columns. The program was unnecessarily switching from Exact Integration Method to PCA Load Contour method for cases where the moments were very close to zero.
- Corrected a typo in the wood panel hold down database for HDU 14-5.5 hold downs.
- Corrected an issue where aluminum members would not display force and stress values when their design code was set to none.
- Corrected an issue with the Cm calculation for ENV2005.
- Corrected an issue where "tapered members" which do not have any taper were getting incorrect code checks.
- Corrected an issue with the Australian and New Zealand steel code check where members with only axial force could give a code check of zero.
- Corrected an issue with aluminum code checks when the allowable tension force controls the allowable bending force. Previously, the governing equations were not being reported correctly.
- Corrected an issue where the program was transposing the SX and SZ spectra scaling factors in the load combinations.
- Corrected an issue where seismic redundancy factor (rho) was being taken as zero if it was included with loads applied to a flexible diaphragm that came over from RISAFloor.
- Corrected an issue with the AS and NTC concrete codes where the reduction factors (phi) were not displaying properly on the column interaction diagrams.
- Corrected an issue which caused 1992 Eurocode equation numbers to be mistakenly referenced when the 2005 Euro Steel code was used. Code checks were correct; only the displayed equation numbers were wrong.
- Corrected a problem which could cause file corruptions associated with wood material counters.
- Corrected a tolerance issue with the BS 5950 Steel code which could cause the Table 9 stress adjustments to be ignored for members with a thickness of up to 2.5mm greater than what would normally require reduction.
- Corrected an issue with lintels for masonry wall panels where the Mn was being calculated as a negative value.
- Corrected an issue which could cause a crash when opening an RT3 (RISATower) file with saved results.
- Corrected an issue which could cause models with wall panels to crash when exporting to DXF.
- Corrected a number of issues with load attribution for sloped floors.
- Corrected an issue with wood shear walls where putting the assumed tension chord in compression (or the assumed compression chord in tension) could result in an incorrectly reported chord force. These cases no longer affect the chord force reporting.
- Corrected an issue with the concrete column rebar diagrams which could cause the detail report to crash.
- Corrected a display issue in the detail report for General wall panels where the length of the wall could be reported incorrectly.
- Corrected a tolerance issue with projected area loads where a projected load which was nearly parallel to the plane of the area load could result in -1.#IND member results.
New in RISA-3D 9.0.1 (Jun 4, 2012)
- Enhancements;
- Added drawing of flexural reinforcement in the column cross section to concrete column detail reports.
- Added an option to use a non-iterative (Tau = 1.0) method for the AISC 360 / 13th edition Direct Analysis method.
- Modified the AISC direct analysis method to ignore the sway flags. See the Limitations - Stiffness Adjustment section of the help file for more information.
- Improved the wall mesh routines interaction with member area loads. See Area Load Distribution in the help file for more information on the interaction between walls and area loads.
- Improved the plotting of the deflected shape for members with shear and axial releases.
- Modified the Concrete Column detail reports so that they always show the interaction diagram regardless of what loading is applied to them.
- Improved the custom rebar layout dialog to be easier to use.
- Corrections:
- Corrected an issue where the rho and Omega factors used in the Load Combinations spreadsheet were always set to 1.0 regardless what parameters were entered in the Seismic tab of the Global Parameters.
- Corrected an issue that caused over conservative calculations of allowable flexural stresses for aluminum round tubes and channels.
- Corrected an aluminum design issue which resulted in incorrect slenderness parameters (S1 and S2) being used for tube shapes.
- Corrected an issue with the expanded force diagrams for concrete members.
- Corrected an issue where an inactive diaphragm (combined with auto-generated seismic loads) could cause a file corruption and prevent the model from opening in version 9.0.
- Corrected an issue where information changed in the Footings tab of Global Parameters would not be remembered when closing out of the dialog.
- Corrected an issue associated with P-Delta analysis in the AISC 13th edition (ASD only) for members subjected to thermal loads. The 1.6 amplification factor on P-Delta effects was not being taken into account for the thermal loads.
- Changed a misleading Warning Log Message to be more descriptive. Instead of "Not enough solution data", the message will now inform the user that their results were generated by an older version of the program.
- Corrected a bug where some unstable plate models failed to generate the warning log message about reactions not equaling the sum of applied forces.
- Updated notation for design coefficients for EuroCode. Previously, the EC3 2004 code was mistakenly using the naming convention from the 1992 version of the code.
- Corrected an issue where appending a model could cause the wall material to be read incorrectly.
- Corrected an issue with the wood database for the "Western Cedar" species.
- Corrected an issue where the program was refusing to do a code check (because fb>FbE) even though the member was in tension.
- Corrected an issue with the displayed units for wind load generation.
- Corrected an issue where rigid end offsets and custom rebar layouts could result in an overly conservative shear check.
- Fixed a units conversion issue where code checks for wood wall panels could be overly conservative.
- Fixed an issue where hard-coded wood wall panels would always give a seismic load combination as the governing load combination, even if a non-seismic load combination controlled.
- Corrected a display issue where the member detail report displayed a different Fv value than was actually used in the F'v calculation for Glulam members.
New in RISA-3D 9.0 (Jun 4, 2012)
- Enhancements;
- Added Aluminum member design
- Added all shapes in the 2005 Aluminum Design Manual.
- Added code checks per the AA ADM1-05 ASD for both buildings and bridges.
- Enhanced Seismic capabilities within the program:
- Added a Seismic tab to the Global Parameters to permanently store seismic code information.
- Added redundancy factor (rho) to the Load Combination Generator
- Added vertical seismic force (Ev) to the Load Combination Generator
- Added automatic linking between parametric design spectra and the seismic tab of Global Parameters
- Added automated I/R scaling to the Response Spectra Scaling dialog.
- Automated the Non-Orthogonal earthquake load options (100% + 30%) within the Load Combination Generator
- Enhanced loading for sloping roof models that are transferred from RISAFloor.
- Enabled flexible diaphragm load attribution (wind and seismic) for sloped roofs.
- Added the ability for the Wind Load Generator to include perpendicular sloped roof wind loads per Figure 6-6 of ASCE-7.
- Added wind load calculations for walls and wall areas that extend above the base roof elevation. These were previously ignored.
- Gravity loads are now brought into RISA-3D at the tops of sloped walls. They were previously applied at the base floor level elevation.
- Added sloped roof wind load category option to the Load Combination generator.
- Added notional loads to the Load Combination Generator per AISC requirements.
- Updated the names assigned to all design code options to match ANSI naming convention.
- Added the ability to selectively include or exclude roof load options (RL, RLL, SL) from the Load Combination Generator.
- Added the ability to apply member area loads perpendicular to the plane of the load.
- Added the ability to apply distributed and point loads oriented along wall panel local axes.
- Improved load attribution for member area loads to be more accurate for non-uniform loads.
- Enhanced wood shear walls to use the controlling shear panel design for code checks of every region.
- Improved the design of headers and studs within wall panels so that only gravity load combinations are considered.
- Reduced input file size by eliminating nailing schedules and hold down schedules from all but explicitly defined wood walls and diaphragms.
- Added the multi-ply wood column design adjustment factor per NDS 15.3.2.
- RISA-3D no longer includes internal wall panel joints when checking against the program limits for maximum number of joints.
- Added network file security to prevent multiple users from opening / editing the same file at once.
- Reduced the memory usage associated with envelope results for wall panels.
- Added a Tools - Preferences option to turn off the Sum of Reactions check.
- Added a new utility to the Tools menu to assist with aligning stacked wall panels.
- Added equation C-F9-1 from steel code commentary (AISC 360) to account for the bending capacity of a fully braced WT with stems in compression
- Corrections:
- Corrected a display issue with the Canadian steel code where the KL/r shown in the detail report was based on the user entered K value rather than the value of 1.0 required by the clause which governed the code check.
- Corrected a database issue where some HSS round members had an incorrect wall thickness listed.
- Corrected the allowable shear stress calculations for the Indian Steel Code per section 6.4.2
- Corrected an issue where the Cb behavior was not properly tied to a user entered Lcomp-bot value.
- Corrected a unit's conversion issue within the bar strain calculation for concrete. This could cause ACI code checks (when using the exact integration method) to use an incorrect phi value, especially for columns subjected to biaxial bending.
- Corrected an issue where the Cb value was being over-conservatively taken as 1.0 for cases where the user defined both the Lcomp and the Cb. This was overly conservative.
- Corrected an issue where Canadian code checks were not being performed on single angles designated as Euler buckling members.
- Corrected a minor units display issue for wood wall shear capacity.
- Corrected a problem which could cause a crash when solving any load combination #1000 or higher.
- Corrected issues where program could erroneously report that input forces did not equal the sum of reactions.
- Corrected an issue where RISA-3D could write out a RISA-3D file with an erroneous RISA-2D file extension.
- Corrected an issue with the Revit Link where RISAFoundation data embedded in a RISA-3D model could get stripped out of the model after round tripping to Revit.
- Corrected a problem where header/ lintel design above wood or masonry wall openings was being skipped for headers / lintels close to the top of a wall.
- Corrected an issue where the RISAFloor grout spacing was not correctly brought into RISA-3D. Required a re-solve to get the Masonry wall code check correct.
- For masonry bending the nominal wall thickness (instead of the actual wall thickness) is now used per provision 2.3.3.3b of ACI-530.
- Corrected an issue with masonry shear walls where the location of the governing code check was reported incorrectly.
- Corrected an issue where the use of design lists with tapered members could cause the code check for tapered members to be based on an incorrect gamma value. This could also result in an incorrect error message.
- Corrected a problem with batch solutions for wood walls that caused a non-controlling chord force to be reported as controlling.
- Corrected an issue with masonry shear walls which could cause the moment capacity to be reported as zero.
- Corrected an issue in wall panel forces that caused random sign reversal of internal wall forces.
- Corrected an issue with tapered members which could cause them to ignore member point loads applied at 100% of the member length.
- Corrected an issue where some report printing sections were printing out the wrong sections.
- Corrected an issue in the RISA-3D flexible diaphragms detail report where the required capacity for wind load cases was being increased by 40% for models transferred from RISAFloor.
- Modified the wind load calculations to use the mean roof height for sloped roofs rather than the base roof elevation for models coming over from RISAFloor.
- Corrected an issue with explicitly assigned diaphragms where a failed code check would result in a warning message stating that a satisfactory panel could not be found in the panel group for models transferred from RISAFloor.
- Corrected an issue with the Revit Link where RISAFoundation data embedded in a RISA-3D model could get stripped out of the model after round tripping to Revit.
- Corrected a Euro code issue where the program calculated a zero moment capacity for one direction of a tube shape.
- Corrected an issue where duplicate / overlapping members could cause the program to freeze during solution.
- Corrected an issue with the append command where materials with non-unique labels could cause the wrong material to be assigned to members from the appended model.
New in RISA-3D 8.1.3 (Jun 4, 2012)
- Wood Wall and Diaphragm Enhancements:
- Automated the 40% stress increase for wind load combinations (compared to seismic) for wood shear walls and diaphragms.
- Added a checkbox for Green Lumber per the NDS footnote which reduces wall stiffness when the wall has a high moisture content.
- Improved the 2b/h shear strength reduction factor so that it will not affect combinations that include wind load.
- Improved the 2b/h shear strength reduction factor for segmented walls so that each region of the wall receives its own adjustment factor rather than using the worst case for all regions.
- Modified the chord force and strap force calculations to more closely match typical design practice. See Wood Wall - Design for more details.
- Improved the load attribution for vertical loads applied to the "ineffective" sections of a segmented shear wall.
- Improved rigid diaphragm behavior to better error check and correct for models which have duplicate nodes or near zero length members.
- Added code to prevent instabilities in slender walls. Slender regions will still be ineffective for shear force, but should not result in instabilities.
- Improved reporting and warning messages for straps.
- Changed default boundary conditions for wood walls so that FEM stiffness would more closely match the NDS three term stiffness equation.
- Improved reporting for situations where no panels could be found within the limits specified in Design Rules.
- Changed the nomenclature for the diaphragm nailing schedules. The term "_OT" was replaced with "_RS". Both terms were always intended to mean "Other Rated Sheathing".
- Other Wall Panel Enhancements:
- Enhanced the graphic display of wall panel reactions to coincide with wall select states.
- Continuous boundary conditions are now stored separately for wood and masonry walls. Ensures that switching back and forth between materials will not permanently change the wall data.
- Added a warning log and detail report message to clarify that the program does not design masonry walls for net tension.
- Added a more sophisticated 'j' calculation for masonry walls. Previous version had automatically assumed a value of 0.9.
- Improved the trim-extend portion of model merge to deal more effectively with wall panels.
- General Enhancements:
- Added automatic Notional Load generation utility similar to the existing wind and seismic load generation.
- Added the 2007 edition of the Saudi concrete code (SBC 304).
- Added stiffness adjustment factor (tau_b) to detail reports for AISC 13th edition.
- Added Bending Span results to column detail reports for members with custom rebar layouts
- Modified program to be more compatible for future link to the 2011 release of Revit Structure.
- Modified custom toolbar registry settings to allow users who are not administrators to customize their toolbars.
- Removed option for creating new models with the "consistent" units option.
- Modified the legend range for wireframe plate contours to more closely match the range shown for color coded contours.
- Added an automatic check for "ghost reactions." Any time the applied lateral forces are not equal to the calculated lateral reactions then a warning message will appear to alert the user.
- Modified concrete shear tie design to round to the nearest 10mm when metric units are being used.
- Modified RISA-3D/RISAFloor optimization routine for members explicitly defined by the user.
- Implemented clause 13.8.2b of the Canadian Steel Code (S16-05) which can provide lower code checks for special cases of uniaxial bending
- Improved the auto update detection sequence so that it cannot falsely report the presence of an update.
- Updated Sentinel libraries to better support Windows 7. Requires an update to Sentinel SuperPro driver 7.5.0 or higher.
- Corrections:
- Updated the criteria for masonry lintel reinforcement spacing checks. Previously some bar arrangements would give a false warning message about the spacing.
- Corrected the calculation of the Beta coefficient for Canadian Steel Code bending check.
- Adjusted the axial capacity calculation for double angles and WT's using AISC 13th Edition to explicitly assume Cw equals zero per the User Note / code commentary.
- Added a 3.0 upper limit to the Cb calculation for AISC 13th Edition. Previous versions of the LRFD code did not include this limit.
- Corrected an issue where a dynamic solution could erroneously solve with tension only members specified. Issue was associated with reading in data from saved results that may not have been consistent with the data file.
- Corrected an issue with the plate contour plotting for models with applied plate thermal loads.
- Corrected an issue where having the default plot options set to display a specific Load Combination number would cause problems when viewing loads in models with fewer Load Combinations.
- Corrected an issue where running a K factor auto-calc from a spreadsheet with no members defined would cause a crash.
- Corrected a problem with the units conversion of wall panel reactions.
- Corrected an issue where the spacing of shear ties was not properly taking into account the Global Parameter setting for increments.
- Corrected an issue where wood walls without openings were not getting their capacity adjusted based on the 2b/h ratio for seismic loads.
- Corrected an issue where the program was not properly reading in explicitly set wall panel schedules.
- Corrected an issue where the program was not fully accounting for a difference in the CD (load duration factor) used in the hold down database versus the one used in the load combination.
- Corrected issue where header design was reported for the wall material even if a different material was specified for the header.
- Corrected issue where strap forces for batch and single solutions were not consistent.
- Corrected an issue where wall panel results would not be remembered when opening a saved solution.
- Corrected an issue where 2001 NDS stress values were used for when doing code checks for Glu-Lam beams per 91/97 NDS.
- Corrected a units conversion issue with the self weight of wood wall panels.
- Corrected an issue where the self weight of masonry lintels was being applied overconservatively for batch solutions.
- Corrected an issue where the self weight of walls was not included in the weight used in the automatic Seismic load generation.
- Corrected an issue where the wall meshing routine could come up with a different mesh for static and dynamic solutions.
- Corrected an issue with distributed wall loads where changing the height of the wall could move the location of the applied load.
- Corrected a units conversion issue with the Canadian Seismic Force generation for braced frames.
- Corrected issues with Phi*Mn Masonry strength calculations which could result in results being reported in the wrong units or with a negative value.
- Corrected an issue associated with opening a model that had saved dynamic results for wall panels.
- Corrected an issue where torsional warping normal stresses were not being accounted for in the code checks for members with no weak axis bending moment.
- Corrected an issue with the envelope display of wall panel reactions in the Joint Reactions spreadsheet. This could result in some joint reactions being replaced with a duplicate copy of a wall panel reaction.
- Corrected an issue where wall panel surface loads applied with total height exactly equal to the mesh spacing would be excluded from the analysis.
- Corrected an issue where Wall Panel reactions would be erroneously removed from the Joint Reactions spreadsheet when a graphical exclude was performed.
New in RISA-3D 8.1.2 (Jun 4, 2012)
- Enhancements:
- Enhanced the Perforated wall panel detail report to more clearly show shear capacity considering 2w/h reduction.
- Added 1% loading method for seismic loading for structures assigned to Seismic Design Category A.
- Improved displayed Fv and Fv’ values for Glu-Lam beams to better distinguish between strong and weak axes.
- Improved the reporting of concrete column results designed by the PCA Load Contour Method.
- Changed the torsion tolerance to 20% for HSS combined stress checks for LRFD 2nd edition to match 13th edition specification. Previous tolerance of 10% was used only because of a lack of code guidance.
- Changed display of continuously free boundary conditions for wall panels to improve clarity.
- Added the ability to put a sketch number (and prefix) with graphic printing.
- Added the ability to specify Plane Stress plates when using RISA-3D under RISAFloor.
- Added RSA method and damping ratio to the input file. Previously this information did not get stored with the file.
- Corrected the tolerance for reporting the KL/r limit for compression member. Limit now enforced for compression members where compression demand is 1% or greater of the compression capacity. Previous tolerance could result in members with high KL/r ratios failing to report the KL/r > 200 message.
- Added ability to use Design Results spreadsheets to select or unselect members in an envelope solution.
- Miscellaneous Corrections:
- Corrected automatic out-to-out depth adjustments for non-symmetric chords generated using the Truss Generator.
- Added a warning message to the Euro Steel detail report which reports a flaw in the Euro spec which creates moment capacities equal to zero whenever rho approaches 1.0.
- Corrected an issue where tapered members with multiple partial length distributed loads could eliminate the 2nd load if the load transition occurred at an intermediate joint.
- Corrected an issue which could cause the undo/redo counter to get off track resulting in an inability to redo changes that were made.
- Corrected an issue with the reading of the Plot Options default file which could cause interface issues and / or incorrectly trigger error messages.
- Corrected the Izz value for the 358TSB18 shape in the Dietrich database.
- Corrected a unit's conversion issue associated with the embedded RISAFoot results. No issue occurred if model was re-solved after the unit's conversion.
- Corrected a unit's conversion issue with member distributed torque loads.
- Corrected a couple of issues with the calculation of NBC Seismic Loads.
- Wood Design Changes:
- Added Select / Unselect functionality in RISA-3D for diaphragm regions that came from RISAFloor.
- Modified diaphragm deflection calculation for diaphragms especially for diaphragms with multiple nailing zones. Only affects diaphragms that came from RISAFloor.
- Changed a number of miscellaneous things in the design of wood shear walls:
- Changed enveloping of Strap forces
- Changed enveloping of studs and chords to be based on maximum code checks rather than maximum forces.
- Application of 2w/h adjustment factors for shear capacity.
- Controlling shear force for FTAO walls with multiple openings.
- Re-defined the 2w/h adjustment factor for FTAO walls to apply to the height of the opening.
- Added the 2w/h adjustment factor to segmented walls.
- Changed the wall to wall connectivity of stacked segmented walls. This results in FEM deflection results that are closer to hand calculations.
- Changed default boundary condition of wood shear walls to be continuously pinned. This results in FEM deflection results that are closer to hand calculations.
- Removed the upper bound of 1.0 on the SSRF (Shear Stiffness Reduction Factor) to allow for this to INCREASE the stiffness of the wall
- Corrected various issues with units conversion
- Ability to read saved results.
- Elastic deflection calculations for perforated walls were applying the Co factor twice.