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October 18, 2018

With the initial implementation of wood wall design in RISA-3D, the wall aspect ratio was calculated as the full height of the wall divided by the width of the region.This was intended to accommodate balloon framed multi-story walls that were drawn as one continuous wall stack. ¬†With recent publications of the ANSI/AWC SDPWS, it has […]

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Posted in Technical Solutions, What's New | Comments Off on Update to Wood Wall Aspect Ratio Limits in RISA-3D

October 11, 2018

With the recent release of RISA-3D v17.0.0 the program now offer the user the option to use Chord Straps between floors of a wood shear wall building in lieu of using hold downs. Chord Straps are a great option for transferring tension load between floors of a multi-floor building and can be installed without accessing […]

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Posted in Technical Solutions, What's New | Comments Off on Hold Downs or Straps? You choose.

October 2, 2018

The new AWC NDS 2018 code has been implemented into RISA-3D v17.0 and RISAFloor v13.0. To select this code for your design, simply choose this code from the Codes tab within Global Model Settings.   After solution, the results are available in the Design Results spreadsheet. You can also verify the code selection used in […]

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Posted in Technical Solutions, What's New | Comments Off on Wood Design per AWC NDS 2018 Wood Code

September 14, 2016

Recently added to RISA-3D and RISAFloor is the ability to specify a K Factor other than 1.0 for wood walls.¬† This K is then used to adjust the axial compression capacity for studs and chords. In RISA we generally recommend that walls are drawn their full floor to floor height, so the proper stiffness can […]

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Posted in Technical Solutions | Comments Off on K Factors Now Available for Wood Wall Panels

January 7, 2016

Mechanically graded wood materials have been added for the AWC NDS 2015 (tag the AWC NDS 2015 Wood Code blog) design code per Table 4C, and CSA O86-14 design code per tables 6.3.2 and 6.3.3. This specification includes the updated MEL and MSR design values. A Mechanically Graded material can be selected in the Material […]

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Posted in Technical Solutions | Comments Off on Mechanically Graded Wood Design Now Available