连续梁桥隔震体系非线性地震反应分析

Nonlinear Seismic Response Analysis of Isolation Systems for Continuous Girder Bridges

对于桥梁结构的隔震、耗能装置采用Wen所提出的微分型恢复力模式，结合Wilson－θ法和四阶Runge－Kutta法推导出桥梁隔震体系非线性地震反应计算公式，分析了这些隔震、耗能装置对于连续梁桥的隔震作用。

In this paper the differential model developed by Wen is used for describing the hysteretic restoring force model of isolation devices. Combined with wilson-θ and Fourth RungeKutta Method, the computation formulas for nonlinear seismic response analysis of isolation systems for continuous girder bridges are established The isolation effects of isolation devices for continuous girder bridges are discussed.