Diaphragms

Diaphragms provide lateral load distribution functions, and are necessary for automatic Wind and Seismic load generation. There are three fundamental types of diaphragms in structural modeling; Rigid, Simi-Rigid and Flexible. The following topics provide more details.

Rigid Diaphragms
Semi-Rigid Diaphragms
Semi-Rigid Diaphragms (RISAFloorES)
Flexible Diaphragms

Note:

See the Diaphragms - Analysis and Results topic for more information on flexible diaphragm analysis and design.
Wall panels can be detached from a diaphragm from the Wall Panel Editor.

For additional advice on this topic, please see the RISA Tips & Tricks webpage at risa.com/post/support. Type in Search keywords: Diaphragms.

RISA-3D Rigid Diaphragm

RISAFloor linked with RISA-3D Includes Rigid and Flexible Diaphragms

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