Hello,
I am using RAM Structural System with RAM Concept to design a concrete transfer slab. I am supporting 5 stories of wood floors above. When I use the manual's method to check LLR parameter for design strips I do not see anything (see images).
Does this mean I am doing something wrong, or that no live load reduction is being used?
I am under the impression that for a design strip, RAM Concept will take the full live load, and reduce the "reducible live load" portion based on the design strip. Is this correct?
This would often result in very low LLR for typical sized bays. Does this seem right (a 35'x35' bay would have a reduction of about 84% based on influence area)?
If a line load representing a wall is supporting 4 to 5 floors, there is a feeling that the live load should be more significantly reduced. Can you provide insight on this?
Imported wall loads from RAM SS have bizarre value, often different at ends (sometimes significantly). Can you explain this anomaly? How can I model walls above to maintain a direct load path?
I have seen in videos that column live load reduction factors should be manually applied. Should this be done in RAM SS and ignored in Concept?
Finally, is the program default of 40% maximum reduction a sufficient setting (meaning I do no have to specify trib area, influence area etc, although I assume I can override using these parameters
as needed).
Also, is this method of design well suited for the podium structure? I have seen some tech notes but I would appreciate some deeper insight. Your pages say it cannot perform two stage analysis, but can lateral design of the concrete only be performed? is there anything about the gravity framing I should be concerned with? or any other considerations?
I apologize if this is long-winded, I am still trying to master this integration.
Thank you in advance for your guidance.
