SCBF Seismic Brace Connections
May 25, 2016

SCBF Seismic Brace Connections

Vertical Diagonal Brace connections and Vertical Chevron Brace connections may be designed as Special Concentric Braced Frame (SCBF) connections in RISAConnection v6.

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OCBF Seismic Brace Connections
April 19, 2016

OCBF Seismic Brace Connections

Vertical Diagonal Brace connections and Vertical Chevron Brace connections may be designed as Ordinary Concentric Braced Frame (OCBF) connections in RISAConnection v6.

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Improved Wall Panel Results
March 26, 2016

Improved Wall Panel Results

Wall Panel Forces Spreadsheet The power of RISA is the easy to access output. The Wall Panels have all the calculations and forces displayed in the Detail Report and now the new Wall Panel Forces gives you a quick way to get all the forces across the base of the wall. This new spreadsheet can be...

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How Do I Find A Failing Member in the Model?
March 18, 2016

How Do I Find A Failing Member in the Model?

You may find that when looking at the Code Check spreadsheet that a given member is failing in design. Here is an example where a steel brace is failing in bending.

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Importing Recorded Seismic Ground Motions
March 10, 2016

Importing Recorded Seismic Ground Motions

The Pacific Earthquake Engineering Research center (PEER) has a large library of measured earthquake records. Below is an example of how to quickly convert one of these records into a format that can be imported into RISA.

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How to Thicken a Slab
March 3, 2016

How to Thicken a Slab

RISAFloor ES allows you to model concrete slabs of any thickness. However, there might be sections of the building that require a thicker slab. The icon is shown below and it will allow you to draw a Polygon or Rectangular shape.

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What are the Ramp Up/Coast Down Functions in Time History?
February 24, 2016

What are the Ramp Up/Coast Down Functions in Time History?

Ramp Up Function RISA allows you to define “Ramp Up Functions” to control how the force and frequency vary during this initial startup time. Typically cyclic equipment loading is applied as a reduced force or frequency when it is initially starting up. It would be overly conservative if it were...

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