土-结构相互作用下的桥墩结构地震响应

The Earthquake Response of the Bridge Pier Under the Soil-structure Interaction

为研究土-结构相互作用下的桥墩结构地震响应问题,通过有限元数值模拟方法,利用有限元软件建立1个两跨的钢筋混凝土连续桥模型,采用时程分析法对比分析连续桥模型在不同场地条件下,桥墩结构对2种不同地震波的地震响应。证明了在进行桥墩抗震设计时,土-结构的相互作用是不能忽略的,且起到不利作用。

For the study of soil-structure interaction under seismic responses of the bridge pier structure problem, through the finite element numerical simulation method, the finite element software is used to establish a model of two span reinforced concrete continuous bridge, the time history analysis method is used to contrast analysis model of continuous bridge under different site conditions, seismic response of the bridge pier structure on two different seismic waves. Proved in the seismic design of bridge piers of soil- structure interaction cannot be ignored, and the adverse effect.