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中国公路学报
CHINA JOURNAL OF HIGHWAY AND TRANSPORT
2006 Vol.19 No.4 P.94-97

数字化期刊

结构损伤识别的双重网格算法

向天宇  赵人达 

摘 要:提出了结构损伤识别的双重网格算法,采用损伤网格描述结构损伤,通过损伤网格节点的损伤变量插值得到结构内任一点的损伤值.应用该方法对一钢筋混凝土简支梁的损伤问题进行了研究,识别结果较好地反映了结构的损伤分布.研究结果表明:双重网格算法可以有效地减少识别变量的个数,提高识别效率,并对土木工程结构中常见的连续分布损伤有较好的识别效果.
关键词:桥梁工程;损伤识别;双重网格算法;有限元模型修正;静力测试
分类号:U445.7 文献标识码:A

文章编号:1001-7372(2006)04-0094-04

Dual Mesh Method for Structure Damage Detection

XIANG Tian-yu  ZHAO Ren-da 

作者简介:向天宇(1972-),男,重庆万州人,副教授,工学博士,E-mail:tyxiang@home.swjtu.edu.cn.
作者单位:向天宇(西南交通大学,桥梁工程系,四川,成都,610031) 
     赵人达(西南交通大学,桥梁工程系,四川,成都,610031) 

参考文献:

[1]谢峻,韩大建.钢筋混凝土简支T梁桥损伤识别的数值模拟[J].中国公路学报,2004,17(4):45-49.XIE Jun,HAN Da-jian.Numerical Simulation of Damage Detection for Simple-Supported Reinforced Concrete T-Beam Girder[J].China Journal of Highwayand Transport,2004,17(4):45-49.
[2]邬晓光,徐祖恩.大型桥梁健康监测动态及发展趋势[J].长安大学学报:自然科学版,2003,23(1):39-42.WU Xiao-guang,XU Zu-en.Development of Long-Span Bridge Health Monitoring[J].Journal of Chang'an University:Natural Science Edition,2003,23(1):39-42.
[3]李朝奎,徐望国,邹峥嵘.均值变点分析理论及其在桥梁健康监测中的应用[J].中国公路学报,2001,14(4):52-54.LI Chao-kui,XU Wang-guo,ZOU Zheng-rong.Mean Value Change-Point Theory and Its Application for Bridge Monitoring[J].China Journal of Highway and Transport,2001,14(4):52-54.
[4]樊可清,倪一清,高赞明.改进随机子空间系统辨识方法及其在桥梁状态监测中的应用[J].中国公路学报,2004,17(4):70-73.FAN Ke-qing,NI Yi-qing,GAO Zan-ming.Improved Stochastic System Identification Approach with Its Application in Bridge Condition Monitoring[J].China Journal of Highway and Transport,2004,17 (4):70-73.
[5]BANAN M R,HJELMSTAD K D.Parameter Estimation of Structures from Static Response:Ⅰ Computational Aspects[J].Journal of Structural Engineering,1994,120(11):3 243-3 258.
[6]BANAN M R,HJELMSTAD K D.Parameter Estimation of Structures from Static Response:Ⅱ Numerical Simulation Studies[J].Journal of Structural Engineering,1994,120(11):3 259-3 283.
[7]HJELMSTAD K D,SHIN S.Damage Detection and Assessment of Structures from Static Response[J].Journal of Engineering Mechanics,1997,123 (6):568-576.
[8]YEO I,SHIN S,LEE H S,et al.Statistical Damage Assessment of Framed Structures from Static Responses[J].Journal of Engineering Mechanics,2000,126(4):414-421.
[9]向天宇,赵人达,刘海波.基于静力测试数据的预应力连续梁结构损伤识别[J].土木工程学报,2003,36(11):79-82.XIANG Tian-yu,ZHAO Ren-da,LIU Hai-bo.Damage Detection of Prestressed Concrete Continuous Beam from Static Response[J].China Civil Engineering Journal,2003,36 (11):79-82.
[10]《数学手册》编写组.数学手册[M].北京:高等教育出版社,1979:934-958.Mathematics Handbook Compiling Committee.Mathematics Handbook[M].Beijing:High Education Press,1979:934-958.
[11]江见鲸.钢筋混凝土结构非线性有限元分析[M].西安:陕西科学技术出版社,1994:153.JIANG Jian-jing.Nonlinear Finite Element Analysis of Reinforced Concrete Structures[M].Xi'an:Shaanxi Science and Technology Press,1994:153.
[12]XIANG T Y,TONG Y Q,ZHAO R D.A General and Versatile Nonlinear Analysis Program for Concrete Bridge Structure[J].Advances in Engineering Software,2005,36 (10):681-690.

收稿日期:2005年8月26日

出版日期:2006年7月31日

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