大跨桥梁结构的长周期地震响应分析

英文篇名：Analysis on long-period seismic responses for long-span bridge structure
中文刊名：河南城建学院学报
英文刊名：Journal of Henan University of Urban Construction
作者：臧明明 ; 尤培华
英文作者：ZANG Ming-ming ; YOU Pei-hua (China Nuclear Power Engineering Co. ; Ltd.Zhengzhou Branch ; Zhengzhou 450052 ; China)
中文关键词：大跨桥梁结构 ; 长周期地震波 ; 动力特性 ; 行波效应 ; 地震反应比较
英文关键词：long-span bridge structure ; long-period seismic wave ; dynamic characteristic ; travelling effect ; comparison of seismic response
出版日期：2012-05-09
机构：中国核电工程有限公司郑州分公司;
年：2012
期：02
出版单位：河南城建学院学报

摘要

以某大跨度斜拉桥为工程背景,采用ANSYS程序建立桥梁结构的三维有限元模型,选用两条典型的长周期地震波,对大跨桥梁结构进行地震反应分析,比较长周期地震波和普通地震波作用下桥梁结构反应的差异,探讨大跨桥梁结构的长周期行波效应问题。
Taking a cable-stayed bridge project as background and using ANSYS procedure to make a 3-D finite element model,we take two pieces of usual seismic waves as excitations to study its seismic response.Furthermore,a comparison of structural response under long-period seismic waves and general seismic waves is developed,and also the long-period travelling effect of bridge structure is discussed.As a result,some conclusions which can be used in engineering are obtained.

引文

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