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Recent content by bertzm

  1. bertzm

    IBC SEISMIC FOOTING RESPONSE MODIFICATION FACTOR

    ok, thanks very much
  2. bertzm

    IBC SEISMIC FOOTING RESPONSE MODIFICATION FACTOR

    Thanks for your answer but my post was not clear. I'm designing a building with ordinary shear walls. I calculated the Sms Sm1, Sds Sd1, The base shear, the R factor (5) and overstrngth factor (4.5). I use the modal analisys and I reduce the spectrum with R factor for section design. My...
  3. bertzm

    IBC SEISMIC FOOTING RESPONSE MODIFICATION FACTOR

    Hi all, can someone help me? I don't understand if i have to use response modification factor when i design foundations (overturning, soil pressure....) or if i need to work in elastic condition (no ductile-dissipative foundations).
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