Research on Intensity Measure Selection for Response Estimation of Reinforced Concrete Pier

For estimating seismic response of pier-structure under near-fault ground motion, The typical pulse-type near-fault ground motion records were chosen to establish a record base, and three pier models with different natural period were established, the effect of structural response estimation by using the non-elastic response spectral displacement of ground motion was studied by using nonlinear time history analysis, and the influence of parameters of the nonlinear oscillator on seismic response estimation was observed. The study is important for structural seismic response estimation under near-fault ground motion and the probability-based seismic performance evaluation.