If you are using the Director tool to take your RISAFloor model into RISA-3D, the program will automatically calculate Seismic Mass for the RISA-3D Seismic Load Generator.

In RISA-3D, there are many different applications that require you to define Member Type in your model including AISC 13th Edition steel design, Seismic Design and Concrete design.

Learn how to use the new Seismic Design and Detailing feature within RISA-3D by viewing this new video.

V-Brace frames in RISA-3D Seismic Design have unbalanced forces shown on both the beams and braces.

The Seismic Provisions in RISA-3D will check various design and code check requirements according to the AISC design provisions.