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Received: 2004-01-04

Revision Accepted: 2004-03-25

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Journal of Zhejiang University SCIENCE A 2005 Vol.6 No.3 P.202-212


Damage detection of frames using the increment of lateral displacement change

Author(s):  WANG Jian-min, CHEN Long-zhu

Affiliation(s):  School of Civil Engineering and Mechanics, Shanghai Jiaotong University, Shanghai 200240, China

Corresponding email(s):   wangjianmin@sjtu.edu.cn, lzchen@sjtu.edu.cn

Key Words:  Damage detection, Increment of lateral displacement change, Static test, Frame, Equivalent column

WANG Jian-min, CHEN Long-zhu. Damage detection of frames using the increment of lateral displacement change[J]. Journal of Zhejiang University Science A, 2005, 6(3): 202-212.

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%T Damage detection of frames using the increment of lateral displacement change
%A WANG Jian-min
%A CHEN Long-zhu
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%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.2005.A0202

T1 - Damage detection of frames using the increment of lateral displacement change
A1 - WANG Jian-min
A1 - CHEN Long-zhu
J0 - Journal of Zhejiang University Science A
VL - 6
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SP - 202
EP - 212
%@ 1673-565X
Y1 - 2005
PB - Zhejiang University Press & Springer
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DOI - 10.1631/jzus.2005.A0202

The method proposed in this paper is based on the fact that the damage in different types of structural members has distinctive influence on the structural stiffness. The intrinsic mechanical property of the structure is tapped and fully utilized for damage detection. The simplified model of the flexibility of frames treats the individual storeys as springs in series and the frame as an equivalent column. It fully considers the main deformation of all beams and columns in the frame. The deformation property of the simplified model accorded well with that of the actual frame model. The obtained increment of lateral displacement change (IOLDC) at the storey level was found to be very sensitive to the local damage in the frame. A damage detection method is proposed using the IOLDCs as the damage identification parameters. Numerical examples demonstrate the potential applicability of this method.

Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article


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