Nonstationary stochastic seismic response analysis of soil-structure interaction
Guodong Zhang, Zhao Wang, Gao Rui · 2004
An efficient analysis of the nonstationary random seismic response of soil-structure interaction system is presented, based on Priestley's evolutionary spectrum theory and ground division and the code (GBJ50011-2001) and the soil-structure interaction as a time-invariant linear system with hysteretic material damping. The earthquake motion intensity and frequency nonstationary are considered . The modulation functions depend both on time and frequency. The example indicates that the earthquake motion intensity and frequency nonstationary character have obvious influence on soil-structure interaction system response.