Diaphragms
10 results found
June 20, 2019 | Tips & Tricks
Understanding Wall Panel Forces with Rigid Diaphragms
Rigid diaphragms represent a plane of very high rigidity and distribute load to elements which connect to them solely based on the stiffness of the elements. Read More
January 17, 2019 | Tips & Tricks
RISAFloor & RISA-3D: Two Buildings on the Same Podium
With RISAFloor and RISA-3D it is possible to create a structure with two buildings supported on the same podium. Read More
April 12, 2017 | Tips & Tricks
Semi-Rigid Diaphragms now Available
RISAFloor v11 now has the ability to model a Semi-Rigid, Rigid or Flexible diaphragms to distribute lateral loads. Read More
October 15, 2015 | Tips & Tricks
Using RISAFloor to Design Wood Diaphragms
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. Read More
April 15, 2015 | Tips & Tricks
How Do I Detach a Wall Panel From a Diaphragm?
This feature is useful if you have a rigid diaphragm defined in the program but have a portion of the structure that is not a part of that rigid diaphragm. This is common for balloon framed walls or Read More
March 10, 2015 | Tips & Tricks
What is a Semi-Rigid Diaphragm?
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 Read More
September 13, 2012 | Tips & Tricks
How Can I Use a Wall for Shear Only (no Bearing) in RISA-3D?
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 only to handle the lateral loads. Read More
February 13, 2012 | Tips & Tricks
How to Apply a Rigid Diaphragm in RISA-3D
In RISA-3D, rigid Diaphragms can be added using the Diaphragm spreadsheet. Just enter the node label and then choose the horizontal plane. Read More
November 29, 2010 | Tips & Tricks
How to Check Frame Story Shears in RISA-3D
When using rigid diaphragm analysis in RISA-3D it can be useful to evaluate the story shear in each frame. Read More
September 14, 2010 | Tips & Tricks
How to Design Flexible Diaphragms in RISAFloor
When you model your building in RISAFloor, make sure that you define your slab edge as flexible. That will ensure that the entire contents of the diaphragm will use flexible behavior. Read More