Using Virtual Joist Girders in RISAFloor
October 10, 2012

Using Virtual Joist Girders in RISAFloor

The Steel Joist Institute (SJI) has recently put together a Virtual Joist Girder table which converts common joist sizes into equivalent wide flange beams. This topic describes how to use these Virtual Joist Girders within the RISAFloor program.

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How to Add a Deck to a RISAFloor Model
July 12, 2012

How to Add a Deck to a RISAFloor Model

RISAFloor has some default decks provided for you when you open the program in the Deck Definitions spreadsheet. You can use one of these decks or you can create your own by going to the bottom of the spreadsheet and press ENTER.

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How Do I Assign Joists with Exact Spacing in RISAFloor?
January 5, 2012

How Do I Assign Joists with Exact Spacing in RISAFloor?

If you want to assign joists in a framing bay with an exact spacing RISAFloor will allow you to specify which side of the bay you want the program to start the spacing measurement from. Go to the Generate Beams within Bay option from the Drawing toolbar. Select the Exact Spacing of option in the...

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How to Check Floor Vibrations Using RISAFloor
October 13, 2011

How to Check Floor Vibrations Using RISAFloor

One of the most overlooked design criteria for commercial buildings is the tendency of the floor system to bounce or vibrate due to human footfalls. Excessive vibration of the floor system is a serviceability issue, and can lead to annoyance or concern from the building’s occupants.

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How to Assign Column Splices in RISAFloor
October 6, 2011

How to Assign Column Splices in RISAFloor

RISAFloor has the ability to model column splices for all columns. You have the choice of a Moment or Shear splice depending upon what type of forces you want the splice to transfer. There are a few different ways to define your splices that give you flexibility in assigning them to your columns.

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Methods to Integrate with RISAConnection
September 6, 2011

Methods to Integrate with RISAConnection

There are several ways to take your RISA-3D or RISAFloor model to RISAConnection. The RISA-3D and RISAFloor end reactions can be sent directly to RISAConnection or RISAConnection can be operated from within RISAFloor and RISA-3D.

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