Dynamic eccentricity for earthquake loading

RE: Dynamic eccentricity for earthquake loading

DSANJU — Wed, 19 Oct 2022 09:02:14 GMT

Please refer

https://communities.bentley.com/products/ram-staad/w/structural_analysis_and_design__wiki/21193/torsion-consideration-in-is-1893-2002-seismic-analysis

It is discussed in reference to IS1893. But the concept is the same for other code.

RE: Dynamic eccentricity for earthquake loading

Alvin Ramirez — Sat, 15 Oct 2022 01:59:01 GMT

Hello Mr. Sye! I am interested with this post specially i want to know how to specify DEC AND ACC parameters to be part of the seismic load case.

How to do this in staad software. I'm hoping for your reply. Thanks in advance...

RE: Dynamic eccentricity for earthquake loading

Sye — Mon, 14 Nov 2016 19:13:02 GMT

The analysis output file only reports the accidental eccentricity but the dynamic eccentricity (DEC ) is not reported which can be confusing. However the analysis does automatically consider the torsion from the dynamic eccentricity along with the accidental torsion. You just need to specify DEC and ACC parameters as part of the seismic load case and also have the rigid diaphragm defined in the model, as you have done.