
September 6, 2017
Canadian Wood Design Updates
The latest releases of RISAFloor and RISA-3D include the following updates to wood design per the Canadian codes:
With the adoption of ASCE 7-22, the concept of a multi-period response spectrum has been added to seismic design requirements. While this provides more accurate hazard representation, it also means engineers need to generate and input additional site-specific data. This quick workflow shows how to gather that data from the ASCE Hazard Tool and use it in RISA’s site parameters table for seismic load generation. Why This Matters for Engineers? Multi-period response spectra reflect more realistic ground motion characteristics and will increasingly be required as jurisdictions adopt ASCE 7-22. By pulling site-specific values directly from the ASCE Hazard Tool, engineers can ensure compliance and avoid unnecessary assumptions. The multi-period approach can result in higher or lower design forces depending on the building’s period and site class, but it always provides more accurate seismic representation than the traditional two-point method. Download the latest versions of RISA that supports ASCE 7-22 below. Step 1: Generate Multi-Period Spectrum Data Go to the ASCE Hazard Tool. Enter your project location (address, coordinates, or site description). Select ASCE 7-22 as the building code. Navigate to the seismic hazard results and download/export the Multi-Period Response Spectrum data. Step 2: Copy Data Points into RISA Open RISA…
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The latest releases of RISAFloor and RISA-3D include the following updates to wood design per the Canadian codes:
This video tutorial will show you how to design a base plate in RISAConnection for both gravity and lateral loads. You can automatically transfer your column end forces from RISAFloor or RISA-3D into RISAConnection.
RISAFloor v11 allows users to add parapets while allowing the program to calculate the wind loads per the ASCE 7 parapet wind loading requirements.
The new Aluminum ADM 2015 code has been added in RISA-3D v15.0. To select this code for your design, simply open the (Global) Model Settings and under the Codes tab select AA ADM1-15:
The bending and axial code checks for single angles differ somewhat from other shape types, because single angles behave quite differently in bending and compression depending on how they are braced along their length.
RISA-3D can design the Cold Formed Steel face-to-face channel and track sections. You can also get design of a Cold Formed Steel tube shape in RISA-3D. The Shape Selection dialog will allow you to model the built-up sections by selecting “Face to Face” shown below.
RISAFloor now has the ability to model a Semi-Rigid, Rigid or Flexible diaphragms to distribute lateral loads. For more information about the different diaphragm types, click on the link below.
The new CSA O86-14 code has been implemented in RISA-3D v15.0 and RISAFloor v11.0
RISAConnection v7 recently added a new Knee Brace (Kicker Brace) connection type. This connection can be designed at the brace to column or brace to beam.
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