RAM Structural System Help

Live Load Reduction in RAM Concrete

In RAM Concrete, the Live Loads are applied to the entire structure, and then the resulting member forces are reduced based on the Live Load Reduction factor for each individual member. The resulting reducible, storage, unreducible and partition load case results are combined into a single Live Load case. For SBC and UBC this requires calculating an equivalent Live Load Reduction factor for each member using a weighted average, since the Live Load Reduction factor can vary from load to load under those Codes.

For beams with cantilevers, the Live Load Reduction factor calculated for the span is also assigned to the cantilevers.

The portion of the live load acting on a member that is delivered from two-way slabs is not included in the reducible area for the live load reduction calculation. However, the user may directly assign a live load reduction factor to a member in RAM Modeler, which will then override the value automatically calculated by Concrete Analysis.