When designing seismic equivalent loads with a Response Spectra Analysis (RSA) in RFEM, how can I apply the modal response parameters Ie/R according to Sect.12.9.1.2 in the ASCE‑7‑16 to my results?

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Accepted Answer

The modal response parameters can be set in the RF‑DYNAM Pro - Equivalent Loads add-on module under the Response Spectra tab. In the Code Parameters table → Type of Spectrum → Modal Response Parameters, the default is set to "No Modification". This setting can be seen in Figure 1.Changing this to "Force Related" in the drop-down window will divide the response spectra by Ie/R based on Sect. 12.9.1.2 [1]. Additionally, in the Code Parameters table > Coefficients, the Seismic Importance Factor (Ie) and the Response Modification Factor (R) can further be set.

Setting Modal Response Parameters in RF-DYNAM Pro for Equivalent Loads

When designing seismic equivalent loads with a Response Spectra Analysis (RSA) in RFEM, how can I apply the modal response parameters I_e/R according to Sect.12.9.1.2 in the ASCE‑7‑16 to my results?