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  • Users: Johnny pap
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  1. Johnny pap

    joist model instabilty in Risa 3D

    I have a standard OWJ between 2 beams.Risa shows instability in the bottom chord. I have Lyy=1200mm (48in) for the top chord, Lbzz=3000mm (10 ft). For the bottom chord I've input Lbyy=3000mm and Lbzz=3000mm Boundary (both ends): Rx - Reaction Ry - Reaction Rz - Fixed Mx - fixed My - fixed Mz -...
  2. Johnny pap

    i get instabilities in my very simple RISA 3D model. Need help. URGENT

    No pin-pin problem. I checked everything I could. I am looking for someone who can review my model and help resolve the problem.

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