桩土耦合的桥梁管桩涡激振动数值模拟  

Numerical simulation of vortex-induced vibration of a bridge pile considering pile and soil interaction

作　　者：华兰亚[1] 李强[1] 段玮玮[1] 

机构地区：[1]浙江海洋学院,浙江舟山316022

出　　处：《山西建筑》2014年第22期176-177,共2页Shanxi Architecture

基　　金：浙江省自然科学基金项目(项目编号:LY12E09005);浙江省科技厅公益性应用研究计划项目(项目编号:2013C33064)

摘　　要：采用有限元软件对跨海桥梁管桩涡激振动进行了数值模拟,分析了流速,土体刚度对管桩振动幅值的影响,结果表明:流速越大,桩体振动幅值越大,振动越剧烈,在相同流速下,土刚度对管桩振动幅值有着明显抑制作用,是一项不可忽略的参数。A numerical simulation of vortex-induced vibration of a cross-sea bridge pile by means of the finite element software,it studies the flow velocity,the soil stiffness influence on the amplitude of pile vibration. It can be concluded that the greater the fluid velocity,the bigger vibration amplitude of the pile and the more severe vibration,the soil stiffness has obvious inhibitory effects on the amplitude of pile,is a parameter which can not be ignored.

关 键 词：管桩 涡激振动 桩土耦合 有限元 

分 类 号：U443.15[建筑科学—桥梁与隧道工程]