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中国公路学报
CHINA JOURNAL OF HIGHWAY AND TRANSPORT
2006 Vol.19 No.6 P.59-64

数字化期刊

大跨桥梁抖振时域分析的程序化方法

胡亮  李黎  彭元诚  樊剑 

摘 要:介绍了一套以通用有限元软件为平台进行抖振时域分析的程序化方法,重点分析了作用在有限元模型加载节点上的随机抖振荷载的模拟方法.依照改进的Deodatis谱表示法给出了脉动风速场模拟程序的流程图.基于准定常假定,推导了便于有限元软件加载的脉动风速和抖振力时程之间的简化转换公式.按照该程序化方法,使用ANSYS软件对龙潭河特大桥进行了风致抖振时域分析,验证了该方法的实用性和有效性.
关键词:桥梁工程;桥梁抖振;程序化方法;时域分析;脉动风速
分类号:U441.3  文献标识码:A

文章编号:1001-7372(2006)06-0059-06

Computerized Approach for Buffeting Time-Domain Analysis of Long-Span Bridge

HU Liang   LI Li   PENG Yuan-cheng  FAN Jian 

基金项目:国家西部交通建设科技项目(2004 318 000 24)
作者简介:胡亮(1981-),男,湖北黄冈人,工学博士研究生,E-mail:peettr@163.com.
作者单位:胡亮(华中科技大学,土木工程与力学学院,湖北,武汉,430074) 
     李黎(华中科技大学,土木工程与力学学院,湖北,武汉,430074) 
     彭元诚(华中科技大学,土木工程与力学学院,湖北,武汉,430074;中交第二公路勘察设计研究院,湖北,武汉,430052) 
     樊剑(华中科技大学,土木工程与力学学院,湖北,武汉,430074) 

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收稿日期:2006年2月14日

出版日期:2006年11月30日

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