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建筑科学与工程学报
JOURNAL OF ARCHITECTURE AND CIVIL ENGINEERING
2006 Vol.23 No.4 P.24-27

数字化期刊

基于曲率模态的钢筋混凝土梁多点损伤位置识别

常军 

摘 要:采用曲率模态对钢筋混凝土梁的多点损伤位置进行了识别研究.首先用有限元程序建立结构模型,并计算出位移模态振型,然后用差分法计算出曲率模态;同时对实际结构进行检测,得到结构的振型并计算出曲率模态.通过有限元模型和实际结构的曲率模态计算得到结构损伤因子,通过分析该损伤因子,可以判断实际结构的损伤位置.数值模拟算例分析表明,曲率模态对结构的损伤较敏感,用该方法识别结构的多点损伤位置是行之有效的.
关键词:钢筋混凝土梁;损伤识别;曲率模态;动力特性;有限元方法
分类号:TU375.1  文献标识码:A

文章编号:1673-2049(2006)04-0024-04

Curvature Model Based Many Damage Locations Identification of Reinforced Concrete Beam

CHANG Jun 

基金项目:国家重点基础研究发展计划("九七三"计划)项目(2002CB412709)
作者简介:常军(1973-),男,江苏丰县人,苏州科技学院讲师,工学博士,E-mail:changjun21@126.com.
作者单位:常军(苏州科技学院,管理科学与工程系,江苏,苏州,215011;同济大学,土木工程防灾国家重点实验室,上海,200092) 

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收稿日期:2006年10月12日

出版日期:2006年12月31日

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