| 钢框架结构两阶段损伤诊断方法 |
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| 引用本文： | 段红霞,李守巨,刘迎曦,袁旭东.钢框架结构两阶段损伤诊断方法[J].大连理工大学学报,2011,51(1):7-13. |
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| 作者姓名： | 段红霞 李守巨 刘迎曦 袁旭东 |
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| 作者单位： | 大连理工大学工业装备结构分析国家重点实验室;大连民族学院土木工程学院;大连海洋大学土木工程学院; |
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| 基金项目： | 国家自然科学基金资助项目(90815023); “九七三”国家重点基础研究发展计划资助项目(2007CB714006) |
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| 摘 要： | 为了对实际钢结构工程进行损伤识别,提出了两阶段损伤诊断方法:第一阶段在随机少量布置测点的情况下,识别出损伤发生最大概率区域;第二阶段在损伤可能区域重新布置测点,准确识别损伤部位及其损伤程度.通过对一个3层钢框架结构的数值模拟,研究了测点位置、模态数量、测试噪声对识别精度的影响.研究结果表明,即使在不完备测试信息的情况下...
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| 关 键 词： | 钢框架结构 损伤识别 两阶段损伤诊断 不完备测试信息 |
Two-stage damage diagnosis approach for steel frame structures |
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| DUAN Hongxi,LI Shouju,LIU Yingxi,YUAN Xudong.Two-stage damage diagnosis approach for steel frame structures[J].Journal of Dalian University of Technology,2011,51(1):7-13. |
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| Authors: | DUAN Hongxi LI Shouju LIU Yingxi YUAN Xudong |
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| Institution: | DUAN Hong-xia1,2,LI Shou-ju1,LIU Ying-xi 1,YUAN Xu-dong3(1.State Key Laboratory of Structural Analysis for Industrial Equipment,Dalian University of Technology,Dalian 116024,China,2.Institute of Civil Engineering,Dalian Nationalities University,Dalian 116600,3.College of Civil Engineering,Dalian Ocean University,Dalian 116023,China) |
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| Abstract: | For the purpose of identifying the damage of steel frame structure,a two-stage damage diagnosis method is presented.At the first stage,the most probable damage area is identified by randomly placing a few sensors.At the second stage,the sensors are placed in probable damage places,and the damage sites and damage extent can be accurately indentified.Using mathematical simulation of a three-layer steel frame structure,the effects of the measurement sites,number of modes,and noise on the precision of identific... |
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| Keywords: | steel frame structure damage identification two-stage damage diagnosis incomplete measurement information |
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