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May 16, 2019

When using semi-rigid diaphragms in a RISAFloor/RISA-3D model, it is possible to see negative moments at the ends of pinned beams as a result of the link between the semi-rigid diaphragm and the beam-column connection. In RISAFloor, semi-rigid diaphragms utilize internal rigid links to create a 12in by 12in “rigid zone” around the column location […]

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March 28, 2019

RISA-3D has two ways of automatically generating seismic-related Basic Load Categories (BLCs) which can be later referenced in the Load Combinations (LCs):   Creating seismic BLCs (ELX, ELZ, etc) from the Seismic Load Generator Creating seismic BLCs (SX, SZ, etc) from Response Spectra Analysis In addition to the automatic generated seismic loads, users can always […]

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Posted in Education, Technical Solutions | Comments Off on General Steps of Assigning Seismic Loads in RISA-3D

January 31, 2019

Historically, licenses of RISA software have been provided to customers in one of two ways: Perpetual License – a physical key that must be plugged into a computer in order to have access to the software Network License – a physical key that is connected to a specific server, that then allows license access to […]

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January 17, 2019

RISAFloor is the RISA Building System’s floor design software which allows users to design with composite decks, elevated concrete slabs and more.  When paired with RISA-3D, the two create a complete solution for the analysis and design of multi-story structures, including two buildings on the same podium. Equivalent Lateral Force/Static Force Procedure After the definition […]

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January 10, 2019

A floating or hanger column is a vertical member that is supported above by a transfer beam and consequently doesn’t transfer its load directly to the foundation. This type of construction is widely used in multi-story commercial and residential buildings because it allows for the column layout on individual floors to be modified where larger, […]

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Posted in Education | Comments Off on Modeling Hanger Columns in RISAFloor