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Guide To: Flexible Diaphragm Load Distribution in RISA
It is important to understand how RISA is modeling your load distributions when applying flexible diaphragms. The flexible diaphragm distributes...
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Diaphragms
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New Features in RISA-3D v20.0.4 now Available!
Admin: Nov 4, 2022 12:00:00 AM
We are pleased to announce our latest RISA-3D release. Our teams have been working hard to add the features and functionality that our customers have...
Video: Using Various Diaphragm Types in RISAFloor
Admin: Feb 26, 2021 12:00:00 AM
RISAFloor supports the three fundamental types of diaphragms used in structural analysis: rigid, semi-rigid and flexible. Watch this video to learn...
Accidental Torsion for Semi-Rigid Diaphragms in RISAFloor
Admin: Dec 11, 2020 12:00:00 AM
The latest releases of RISAFloor (Version 15.0.1) and RISA-3D (Version 19.0.1) include consideration for accidental torsion and eccentric loading for...
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How Do Flexible Diaphragms Work on Sloped Roofs?
Admin: Apr 23, 2020 12:00:00 AM
RISAFloor supports the use of flexible diaphragms on both flat and sloped roofs. Before reviewing the workflow for utilizing a flexible diaphragm on...
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Understanding Wall Panel Forces with Rigid Diaphragms
Admin: Jun 20, 2019 12:00:00 AM
When modeling building structures using steel or composite steel floors, engineers typically utilize rigid diaphragms to distribute lateral loads...
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RISAFloor & RISA-3D: Two Buildings on the Same Podium
Admin: Jan 17, 2019 12:00:00 AM
RISAFloor is the RISA Building System’s floor design software which allows users to design with composite decks, elevated concrete slabs and more....
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How Do I Detach a Wall Panel From a Diaphragm?
Admin: Apr 15, 2015 12:00:00 AM
The ability to detach a wall panel from a diaphragm was a feature added in RISA-3D V13.
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What is a Semi-Rigid Diaphragm?
Admin: Mar 10, 2015 12:00:00 AM
RISAFloor Concrete Floor Slabs can design be transferred into RISA-3D for lateral design using either a Rigid Diaphragm or Semi-Rigid diaphragm. In...
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How Can I Use a Wall for Shear Only (no Bearing) in RISA-3D?
Admin: Sep 13, 2012 12:00:00 AM
Let’s consider the example of the frame shown below. Suppose there is a diaphragm present at the framing level, and that the wall shown is intended...