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利用有限元软件,对某铅芯橡胶支座隔震结构体系进行了数值模拟分析,主要分为考虑土-结相互作用和不考虑土-结相互作用两种情况。结果表明:在考虑了土-结相互作用之后,隔震结构的位移时程曲线比较平缓,层间位移幅值比不考虑土-结相互作用降低较多。
Using finite element software, the numerical simulation analysis of the seismic isolation system of a lead-rubber bearing is mainly divided into two cases: considering the soil-knot interaction and not considering the soil-knot interaction. The results show that after considering the soil-knot interaction, the displacement time-history curve of the isolated structure is relatively flat, and the amplitude of the interlayer displacement is much lower than that without considering the soil-knot interaction.