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Lately I've been running into issues with my lateral analysis on a large, square steel framed building. The roof is an 1-1/2" metal deck that slopes in one direction and drops 10' over the length of the building, which I've modeled as a semirigid diaphragm…

I'm using RAM SS to design a building where we have raised slabs modeled due to a bridge framing into the building. I'm wondering if there are any special requirements in order to have RAM use the main floor diaphragms to calculate the tributary heights…

Hi, I have two questions. 1) RAM SS has response spectra input window and I need to input X and Y Scale factor(default =1.0). Should I input I(importance f)/R there as starting point? or I/R is already reflected? In other words, 1.0 is ok to…

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I was wondering if there is any literature on the best way to approach the design of a simple four sided moment frame building using RAM Structural System? Thanks, Scott

Hi all, this post is almost entirely directed at the Bentley folks, because I want to make sure that RAM SS has been updated to take into account the cracked section factor on slabs as I would assume. From previous emails with Bentley I was informed that…

All, I am looking for some guidance, when determining the lambda critical value for a structure within RAM Frame, does the programme do anything with this? In particular, if the lambda critical value is less than 10, but greater than 4, does the…

Is is possible to save visibility settings for RAM Frame? Every time I go into ram frame the visibility of slabs, gravity members, and footings is enabled. While I enjoy having the enhanced graphics in this module now, it would be nice if the program…

Is there any way to clear a wall group assignment from some columns in RAM Frame? The only option that I see is to change the wall group number, not un-assign the wall group. Thanks, Scott B.

I was wondering if it is possible to change braces in RAM SS so that they do not take any vertical loading. Currently when we are looking at the forces in the braces in RAM Frame, the controlling load combination is a vertical load combination not the…

When modeling shear walls in RAM SS, do I need to sub-divide them in RAM Modeler so that the forces that are delivered to the continuous footings in RAM Foundation more realistic?

Does anyone know if/how you can model bundles of rebar in RAM Structural System? Currently I'm only seeing the equal spacing method for placing rebar within the concrete columns, but this is overly conservative when considering the bending stress in the…