Live load reduction parameter

RE: Live load reduction parameter

Seth Guthrie — Fri, 01 Apr 2022 17:52:45 GMT

Correct, only the first method (1607.11.1) is implemented.

Note, you can separately control the punching shear LLr parameters if it helps you to run a single model only.

RE: Live load reduction parameter

Chinmay Damle — Fri, 01 Apr 2022 17:44:52 GMT

Thanks Seth! I did end up applying reduced live load for slab flexure results and had a separate model for punching check. Is it safe to assume that Ram Concept only uses the standard Live Load reduction formula (from ASCE and IBC) and does not use the alternate live load reduction even when we specify IBC as the code for live load reduction?

RE: Live load reduction parameter

Seth Guthrie — Fri, 01 Apr 2022 17:34:28 GMT

The manual confirms what you are seeing:

You could force the issue by specifying the Trib. area and Influence area directly (and maybe a max reduction %), or you could apply pre-reduced live loads only. You might check if any of the other codes use a method that equates to the IBC Alternate method, I never took it that far myself.