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  1. Ayman, You will need to see the mass participation per mode and then make sure you have enough modes (sum up the mass participation for each mode) to meet your building code requirement (90% or something varies from Code to Code). If you didn't have enough modes when you sum up the modal mass participation per mode, then you need to increase the number of modes thill you sum hits the magical number as specified in the code. The table above is showing displacements per mode is different than what you should be looking at. Thanks.
    1 point
  2. WR1

    Torsion in Buildings

    1. Increase modes from 12 to have SumRx more than 90%. 2. first mode is translation in x plus some torsion. second mode is pure translation y. third mode is torsional + x-translation. it appears that you have irregularities in x direction (CM and CR are at different locations).
    1 point
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