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http://dx.doi.org/10.11112/jksmi.2014.18.3.101

Damage Detection of Shear Building Structures Using Dynamic Response  

Yoo, Suk-Hyeong (경남과학기술대학교 건축공학과)
Publication Information
Journal of the Korea institute for structural maintenance and inspection / v.18, no.3, 2014 , pp. 101-107 More about this Journal
Abstract
Damage location and extent of structure could be detected by the inverse analysis on dynamic response properties such as frequencies and mode shapes. The dynamic response of building structures has many noise and affected by nonstructural members and, above all, the behavior of building structure is more complex than civil structure and this makes the damage detection difficult. In recent researches the damage is detected by the indirect index such as sensitivity or assumed values. However, for the more reasonable damage detection, it needs to use the damage index directly induced from dynamic equation. The purpose of this study is to provide the damage detection method on shear building structures by the damage index directly induced from dynamic equation. The provided damage index could be estimated from measured mode shape of undamaged structure and frequency difference between undamaged and damaged structure. The damage detection method is applied to numerical analysis model such as MATLAB and MIDAS GENw for the verification. The damage index at damaged story represents (-) sign and 15 times than other undamaged sories.
Keywords
Damage detection; Mode shape; Modal analysis; Natural frequency; Shear building;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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