考虑桩-土-结构作用下的大跨径悬索桥地震响应分析研究

摘要

In this paper, a large span suspension bridge with 320m+1196m+320m as the main span is taken as an example. The finite element software is used for modeling and calculation. The spring element is used to simulate the pile and soil action. The spring element stiffness is calculated by the m method. The average value of seismic response of seven sets of seismic waves is used as the ground motion input. The seismic response of the long-span suspension bridge under the action of pile-soil-structure action is analyzed.%本文以主跨布置为320m+1196m+320m的某特大跨径悬索桥为例,采用有限元软件建模计算,通过设置弹簧单元模拟桩土作用,弹簧单元刚度采用m法计算,地震动输入取七组地震波地震响应的平均值,分析考虑桩-土-结构作用下的大跨径悬索桥地震响应.