:用影响矩阵考虑了桥梁在多点激振下的非线性地震响应 ,并利用 Wilsom-θ法编制了相应的程序 .该程序可用来计算非一致输入下的线性或非线性响应和一致输入下的线性或非线性响应 .通过算例对以上四种情况进行了比较 ,结果表明多点激振效应和非线性作用对结构动力响应均有较大影响 ,不容忽视 : Considering the nonlinear seismic response of the bridge under multi-point excitation with the influence matrix, the Wilsom-θ method is used to generate the corresponding program, which can be used to calculate the linear or nonlinear response under non-uniform input and consistent input Linear or non-linear response.An example is given to compare the above four cases.The results show that multi-point excitation and nonlinear effects have a great influence on the dynamic response of the structure, which can not be ignored