STRUCTURAL DAMAGE IDENTIFICATION OF MUNICIPAL BRIDGES USING STRAIN FREQUENCY RESPONSE FUNCTION

被引：0
|
作者：
Jiang, Zengguo [1 ]
Zhang, Zhen [2 ]
Chen, Bo [3 ]
机构：
[1] Wuhan Univ Technol, Sch Civil Engn & Architecture, Wuhan 430070, Peoples R China
[2] Natl Univ Singapore, Dept Civil Engn, Singapore, Singapore
[3] Wuhan Univ Technol, Key Lab Roadway Bridge & Struct Engn, Wuhan 430070, Peoples R China
来源：
PROCEEDINGS OF THE TWELFTH INTERNATIONAL SYMPOSIUM ON STRUCTURAL ENGINEERING, VOLS I AND II | 2012年
基金：
中国国家自然科学基金;
关键词：
Structural damage identification; strain frequency response function;
D O I：
暂无
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
A method for the localization and assessment of damage is presented in this study. The method is based on the use of Strain Frequency Response Function (SFRF) data sensitivities to changes in Young's modulus. With these sensitivities, differences in the dynamical behavior of the structure in its undamaged and damaged conditions can be translated into damage information. Numerically generated data, from a simple-supported plane, are used for better demonstration. Results illustrate that the SFRF curvature ratio change is sensitive to damage than three of the most referenced methods on literature, modal shape, modal strain and FRF curvature. The presented method is simple and robust in locating single or multiple damages as well as identifying damage severity for its less of sensitivity to the measurement errors, however, it is influenced by the frequency range to some extent.
引用
收藏
页码：1535 / 1538
页数：4
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