
November 16, 2017
Area Load Query Tool
RISAFloor v11 includes the new Area Load Query tool which allows users to visually inspect the area loads applied to a floor level.
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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RISAFloor v11 includes the new Area Load Query tool which allows users to visually inspect the area loads applied to a floor level.
Basic Description Pattern based skip loading has recently been added into RISAFloor beam design. This can be turned on or off using the checkbox in the Solution tab of the (Global) Model Settings shown below.
The Load Combination Generator in RISA-3D can now include earthquake loads in load combinations to reflect Response Spectra Analysis.
The International Code Council just released the 2018 International Building Code (IBC) in August 2017.
The Steel Joist Institute (SJI) sizes and capacities from the 44th Edition Standard Specifications Load Tables and Weight Tables for Steel Joists and Joist Girders are now available in RISAFloor v12. There were no changes from the 43rd to the 44th Editions so you’ll see that these two are grouped...
The new British Annex (BS EN1993-1-1:2014) for the European Hot Rolled Steel material code is now available in RISA-3D v16 and RISAFloor v12.
Stainless Steel provisions are now available in RISA-3D v16 according to the AISC Design Guide 27 - Structural Stainless Steel.
RISAFloor ES v12 now includes the ability to manually define user reinforcement in concrete slabs.
You can now set the L-Torque length for the EN1993-1-1:2014 code in RISA-3D and RISAFloor. In previous versions of the Eurocode, RISAFloor and RISA-3D used the full member length as the torque length when calculating torsional buckling. Now, per EN1993-1-1:2014 Section 13.3.2, we’ve added the...
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