深水连续刚构桥地震响应分析

Seismic Response Analysis of Continuous Rigid Bridge in Deep Water

以某深水刚构桥为例,以附加质量的形式考虑墩水耦合效应的影响,运用大型通用有限元软件ADINA,建立结构动力有限元模型,进行动力时程分析。比较考虑墩水耦合效应和不考虑墩水耦合效应下的内力和位移。结果表明:考虑墩水耦合效应时比不考虑墩水耦合效应时的内力和位移都明显增大,并且应同时考虑外域水与内域水对高墩的共同作用。

Some continuous rigid bridge in deep water is taken as an example and the coupling effect of pier and water in the form of additional mass is taken into account. The large general finite element software called ADINA is applied to establish a finite element model for dynamic time history analysis. The internal force and the displacement are compared with and without the coupling effect of pier and water. The internal force and displacement with the coupling effect of pier and water obviously increase and the joint action of both outside water and inside water is taken into account at the same time.