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Recent content by shbi

  1. shbi

    what's the diffence between rubber isolator and sliding isolator

    I am trying to model a bridge slab's friction effect. Can some one tell me how to use link element, espically for rubber isolator and sliding isolator? Thanks!
  2. shbi

    i want 2 ask about sap

    frame is enough
  3. shbi

    dynamic participation ratio

    now I am running a structure of over 8000 degree of freedom of mass and I am trying to run 3000 modes in order to get 90% participation. However, I find it is very slowly!! i may take 250 hours to complete it. It's a half way now (1700 modes). do I have a way to know the participation ratio if i...
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