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Hello everyone, I am required to analyse a building that has both steel framing for the first few floors and is then continued upwards as a concrete structure. I was able to use AISC's direct analysis method to check the deflections in the steel framing and check the members using reduced EI properties. When I get to checking concrete, the code doesn't give an explicit method on how to do something similar to that shown in AISC. My understanding is that I can use moment magnifiers or run the analysis with P-delta turned on. My goal is to analyse the entire model in one fashion, and I'm interested in finding out how to analyse the concrete structure with P-delta. 1) Would sway/non sway not matter when P-delta analysis is done? In AISC, they mention that k doesn't matter in P-delta analysis. 2) Is the iterative method to find EI applicable for concrete as well? I'm using RISA 3D to perform the analysis. I would appreciate any help as I do not have a lot of experience in dealing with concrete structures. Thanks, Vishal
We have a file that is crashing Revit 2016 midway through the export to RISA, using the RISA-Revit Link. All software is on the same machine and update to the latest version. I am currently working with RISA and Revit support departments. Any advice?
Has anyone found success in transfterring from Revit to Risa? I have found all sorts of problems in the transfer - and I'm not optimistic that it will ever be nice. I'm a little concerned because the principal structural engineer may think it's an untapped benefit, and I hate to be the killer of progress...