STUDY ON SEISMIC RESPONSE OF A NEW STAGGERED STORY ISOLATED STRUCTURE CONSIDERING SSI EFFECT

The new staggered story isolated structure is a type of seismic developed from base and inter-story structure. In order to explore the response considering soil-structure interaction (SSI), model SSI effect established analyze nonlinear dynamic time-history under rare earthquakes, comparison between hard soil soft was carried out. Results show that stiffness reduced, modal period extended reduced by effect, softer site soil, more obvious those changes are. Meanwhile, shear force damage core tube decreases, while frame increases, transfers frame. Additionally, energy absorption bearings at increased, trend is.