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本文在考虑桥梁的上部结构、基础和土的相互作用的情况下,对具有深桩基高墩台的多跨连续梁桥进行了地震反应分析.就本文所述的这种复杂结构体系而言,采用首先分别列出土一基础和上部结构的方程式,然后将它们综合成整体的子结构法是有利的。本文着重研究垂直方向和水平方向地震波的传播效应,前者是由土和基础运动的相互作用引起的,而后者则是由于各基础输入不同相位的运动引起的。
In this paper, the seismic response analysis of a multi-span continuous girder bridge with a deep pile foundation with high piers is carried out considering the interaction between the superstructure, foundation and soil of the bridge.In terms of the complex structure system , It is advantageous to adopt equations that first separate the earth’s substructure and the superstructure and then integrate them into an integral substructure. This paper focuses on the propagation effects of vertical and horizontal seismic waves. The former is caused by the interaction between soil and basic motion, while the latter is caused by the motion of different fundamental phases.