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空间钢框架支撑结构损伤定位分析 被引量：3

Damage Localization Analysis to Spatial Steel Braced-Frame Structure
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摘要 提出了一种基于结构振动特性的损伤指标定位方法,对一空间复杂模型结构进行模拟损伤定位分析,考虑了2种损伤状态7种损伤模式,采用环境激励方式,利用有限的测试信息对不同的损伤模式进行分析,结果表明,将损伤指标同结构自身特性、识别的模态参数结合起来综合考虑,能够对空间复杂结构可能损伤的位置给出合理的估计. A vibration-based damage index localization method was proposed,and damage localization analysis of a complicated spatial model structure was conducted.The 7 known damaged cases including two kinds of damage states,brace damage cases and joint damage cases,were considered,and the different damage patterns were ana-lyzed according to the limited number of measurements from ambient excitations.Results indicate that reasonable estimation for the possible damage location of the complicated spatial structure can be derived by combining the dam-age index with the characteristics of the analytical model and the identified modal characteristics.
作者 徐龙河 杨冬玲 李忠献 钱稼茹
机构地区 北京交通大学土木建筑工程学院 天津大学建筑工程学院 清华大学土木工程系
出处 《天津大学学报》 EI CAS CSCD 北大核心 2011年第7期577-581,共5页 Journal of Tianjin University(Science and Technology)
基金 国家自然科学基金重大研究计划重点支持项目(90815025 90715032) 国家自然科学基金青年科学基金资助项目(50808013)
关键词 空间复杂结构 损伤指标 损伤定位 环境激励 spatial complicated structure damage index damage localization ambient excitation
分类号 TU317.1 [建筑科学—结构工程] O327 [理学—一般力学与力学基础]
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参考文献18

  • 1Kim J T, Stubbs N. Improved damage identification method based on modal information[J]. Journal of Sound and Vibration, 2002, 252(2): 223-238.
  • 2Stubbs N, Park S, Sikorsky C, et al. A global nondestructive damage assessment methodology for civil engineering structures [J].International Journal of Systems Science, 2000, 31 (11) : 1361-1373.
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二级参考文献16

  • 1Ching J,Beck J L.Two-step Bayesian Structural Health Monitoring Approach for IASC-ASCE Phase II Simulated and Experimental Benchmark Studies [R].No.EERL 2003-02,Pasadena,California:California Institute of Technology,2003.
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  • 8Pothisiri T,Hjelmstad K D.Structural damage detection and assessment from modal response[J].Journal of Engineering Mechanics,ASCE,2003,129(2):135～145.
  • 9Caicedo J M,Dyke S J,Johnson E A.Natural excitation technique and eigensystem realization algorithm for phase I of the IASC-ASCE benchmark problem:simulated data[J].Journal of Engineering Mechanics,ASCE,2004,130(1):49～60.
  • 10Shi Z Y,Law S S,Zhang L M.Damage localization by directly using incomplete mode shapes[J].Journal of Engineering Mechanics,ASCE,2000,126(6):656～660.

共引文献9

同被引文献12

引证文献3

二级引证文献3

天津大学学报
2011年 第7期

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