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  • Seismic and Wind Drift Calculations

    When analyzing a structure in RAM Frame, do the drift results calculated use the ultimate or the service wind load? Also in RAM Frame, do the seismic drift results calculated use an elastic analysis or is the design ratio calculated by multiplying by…

  • Lateral displacemente of semirigid diaphragm

    Hi, I'm trying to verify the drift of a one-story ware house with tilt-up concrete panels and steel deck roof. I followed all the information that I found on the forum, but I still have a few questions: First I calculated the properties and displacement…

  • RE: RAM Frame Drift Control Module: Question about Virtual Loads and Load Pairs

    I have only used virtual load cases with lateral force on a single diaphragm. The program allows you to enter other loads, but I've never had a good reason to do so. I ran a simple test here and I don't think the scale for the load pair actually does…
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