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RAM | STAAD Forum
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    • Response Spectrum
    • base shear
    • I/R
    • MASS PARTICIPATION
    • R/I
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    • scaling
    • RE: Response Spectrum Analysis and Base Shear

      Sye
      Sye
      First one comment. As part of the mass definition for the response spectrum load case 3, you should add the udl in the X direction as well as shown below. This is to ensure that vibration of masses in all possible directions are considered for the eigensolution…
      • over 7 years ago
      • RAM | STAAD | ADINA
      • RAM | STAAD Forum
    • RE: Response Spectrum Analysis & Equivalent Lateral Force

      Sye
      Sye
      You need to also consider the fact that you are using a R value and an I value which are factored in the equivalent static analysis but the response spectrum base shear does not account for these. If you include these factors ( by multiplying the direction…
      • over 7 years ago
      • RAM | STAAD | ADINA
      • RAM | STAAD Forum
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