深水连续刚构桥地震响应分析

英文篇名：Analysis of seismic responses of continuous rigid-frame bridge in deep water
中文刊名：地震工程与工程振动
英文刊名：Journal of Earthquake Engineering and Engineering Vibration
作者：刘振宇 ; 李乔 ; 赵灿晖 ; 蒋劲松
英文作者：LIU Zhenyu1 ; LI Qiao1 ; ZHAO Canhui1 ; JIANG Jinsong2(1.School of Civil Engineering ; Southwest Jiaotong University ; Chengdu 610031 ; China ; 2.Sichuan Province CommunicationsDepartment Highway Planning Survey ; Design And Research institute ; Chengdu 610041 ; China)
中文关键词：深水桥梁 ; 动水压力 ; 墩-水耦联振动 ; 地震响应
英文关键词：deep-water bridges ; hydrodynamic pressure ; pier-water coupling vibration ; seismic response
出版日期：2009-08-15
机构：西南交通大学桥梁系;四川省公路规划勘察设计研究院;
年：2009
期：04
出版单位：地震工程与工程振动

摘要

本文探讨连续刚构桥在深水中地震响应的特性。首先建立了地震作用下深水桥梁的运动方程,简要阐述了该运动方程的求解方法,应用该运动方程,对一座桥墩淹没水深168m的连续刚构桥进行了地震响应分析,考察了在纵向、横向激励作用下桥墩的内力响应和位移响应特征,探讨了矩形空心截面桥墩内域水、外域水对桥墩地震响应的影响,结果表明,由于墩-水相互作用,桥墩的位移和内力响应均有明显增大,对于矩形空心墩,内域水和外域水的影响应同时计入。
The responses of continuous rigid-frame bridge in deep water subjected to seismic ground motion are discussed.Firstly,the motion equation of bridge in deep water subjected to seismic ground motion is derived and the solving method is introduced briefly.Secondly,The seismic responses of continuous rigid-frame bridge in water with 168 meter depth are analyzed,and the displacement and internal force of pier subjected to longitudinal or transverse seismic excitation are studied.The effect of exterior water and interior water on pier seismic response is investigated.The results show that the displacement and the internal force of pier is increased duo to water-pier interaction.The influence of interior water and exterior water on pier should be taken into account simultaneously.

引文

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