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October 15, 2015

Screen Shot 2015-02-17 at 4.26.02 PM

This video will show you how to layout wood diaphragms in RISAFloor and get the design and deflection results in the lateral model in RISA-3D.

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April 15, 2015

Detach from Wall Panel3

New in RISA-3D V13 is the ability to detach a wall panel from a diaphragm. In the Wall Panel Editor there is a button to Toggle Diaphragm Attachment.

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March 10, 2015

Semi-Rigid 3

RISAFloor Concrete Floor Slabs can design be transferred into RISA-3D for lateral design using either a Rigid Diaphragm or Semi-Rigid diaphragm. In RISA-3D, the wind and seismic loads are calculated and then applied into the diaphragm level to distribute the forces to the Lateral Resisting System. For example, looking at the plan view of a […]

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September 13, 2012

How Can I Use a Wall for Shear Only (no Bearing) in RISA-3D?

In order to prevent the columns from sharing axial force with the wall they must not touch the wall. Therefore the wall should be modeled in RISA-3D as not touching the columns.

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February 13, 2012

How to Apply a Rigid Diaphragm in RISA-3D

Rigid Diaphragms can be added using the Diaphragm spreadsheet. Just enter the node label and then choose the horizontal plane.

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