【摘要】 在对桥梁减震设计原理进行分析的基础上，利用非线性水平和转动弹簧单元分别代表减、隔震支座和桥墩延性塑性铰的非线性性能，编制了桥梁减震非线性地震反应分析程序，并利用算例分析了桥梁采用减、隔震支座和利用桥墩延性抗震的减震效果。更多还原

【Abstract】 In this paper, the aseismic design methods for bridges are investigated and the nonlinear seismic response analysis program for aseismic bridge is developed. When nonlinear seismic response analysis is carried out, the nonlinear behavior of aseismic bearings and ductile plastic hinges of piers are taken into account by using nonlinear spring element. One desige example of a fourspan continuous bridge is presented to investigated the effect of aseismic design.更多还原