Nonlinear response estimates of RC frames using linear analysis of SDOF systems

Abstract

SUMMARY: An approximate-simple method for nonlinear response estimates of reinforced concrete frames subjected to near-field and far-field records is presented in this paper. The approximate method is based on equivalent single-degree-of-freedom and linear multi-degree-of-freedom models. In this procedure, the nonlinear maximum roof displacement is estimated using an effective period factor and elastic response spectrum with an equivalent damping. The effective period factor was proposed for far-field and near-field ground motion records. For regions of high seismicity, the maximum roof displacement can be estimated by applying an effective period factor of 2.3 and 2.1 for near-field and far..