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《Low Temperature Architecture Technology》 2005-04
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PEI Qiang(Insttitute of Engineering Mechanics,China Earthquake Administration,Harbin 150080,China)  
In this paper,the crack is modeled by the degradation of bending stiffness and the crack damage is detected with strain mode method.Strain modal analysis was a damage diagnosis method which is sensitive to damage location and damage degree.As an example,the displacement mode of a simply supported beam is calculated using finite element software with powerful functions,and then strain modal analysis of the simply supported beam for single-position damage and multi-position damage respectively is carried through the one-order differential relationship between strain and displacement.
【CateGory Index】: TU391
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Chinese Journal Full-text Database 1 Hits
1 ZHANG Hong mei 1 , LI Yan 1 , PEI Qiang 2 (1.Heilongjiang Harbour Engineering Investigation and Design Institute,Harbin 150020,China; 2.China earthquake administration, Harbin 150080,China);DAMAGE IDENTIFICATION METHOD OF STEEL STRUCTURAL CRACK AT LOW TEMPERATURE I:THEORY[J];Low Temperature Architecture Technology;2004-05
【Secondary Citations】
Chinese Journal Full-text Database 7 Hits
1 HOU Xing-min, YANG Xue-shan, LIAO Zhen-peng. MA Shu-lin (Institute of Engineering Mechanics. China Seismological Bureau. Harbin 150080, China);Bridge deflection real time measurement[J];Earthquake Engineering and Engineering Vibration;2002-01
2 DENG Yan, YAN Puchiang (Department of Precision Instruments and Mechanology, State Key Laboratory of Precise Measurement Technology and Instruments, Tsinghua University, Beijing 100084, China);New approach for strain modal measurement and damage detection of bridges[J];Journal of Tsinghua University(Science and Technology);2000-11
3 LI Debao 1, LU Qiuhai 1, QIN Quan 2(1. Department of Engineering Mechanics, Tsinghua University, Beijing 100084, China; 2. Department of Civil Engineering, Tsinghua University, Beijing 100084, China);Curvature modal analysis for bending structures[J];Journal of Tsinghua University(Science and Technology);2002-02
4 ZHAO Yuan,LU Qiuhai(Department of Engineering Mechanics, Tsinghua University, Beijing 100084, China);Multiple damage detection of simply supported beam bridges[J];Journal of Tsinghua University(Science and Technology);2002-04
5 Yang Xueshan Hou Xingmin Liao Zhenpeng Huang Zhenping (Institute of Engineering Mechanics,China Seismological Bureau);A NEW METHOD FOR BRIDGE DEFLECTION MEASUREMENT[J];;2002-02
6 Li Debao Zhang Yuanyun Lao Jing (Tsinghua University);USING MODAL ANALYSIS METHOD IN ANALYZING DYNAMIC STRAIN/STRESS FIELD[J];Journal of Vibration and Shock;1992-04
7 Li Gongyu Zheng Huawen (College of Mechanical and Electrical Engineering,Kunming University of Science and Technology Kunming,650093,China);Studies on Curvature Modal Analysis of Damaged Structures[J];Journal of Vibration,Measurement & Diagnosis;2002-02
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