波浪力作用下四桩平台结构力学性能的有限元分析

Finite Element Analysis of Mechanical Property about Four Pipe Platforms under Wave Force

以长江上一特大型公路大桥水上施工平台的工程水文资料为背景,对一个四桩平台进行波浪力作用下的瞬态动力分析,并分析了结构整体刚度及局部刚度(改变构件尺寸或者构件的布置方式)的改变对结构响应所产生的影响,对施工平台的设计提出了一点建议。

According to the hydrological data of the construction platform of a large bridge across the ChangJiang River,transient dynamic analysis is carried out based on the wave force. The influences of the change of the structural global stiffness or local stiffness for pipe platform on the dynamic responses of the structure are analysed （ by changing the size of structural size or the arrangement of structural members）. At last the paper gives some advises for the design of the platform.