TY  - JOUR
PY  - 2022//
TI  - Quasi-static influence line identification and damage identification of equal-span bridges based on measured vehicle-induced deflection
JO  - Baltic journal of road and bridge engineering
A1  - Yang, Kang
A1  - Ding, Youliang
A1  - Zhao, Hanwei
A1  - Geng, Fangfang
A1  - Sun, Zhen
SP  - 47
EP  - 74
VL  - 17
IS  - 2
N2  - The bridge influence line (IL) reflects the response of a certain section due to varying load positions. As a result, IL has a wide application prospect in damage identification and condition assessment. Up to date, studies regarding IL have been focused on the structure condition evaluation. A feasible and practical method for damage identification is still not yet available. The present paper proposes a comprehensive damage identification methodology based on IL under a moving vehicle is composed of data pre-processing, IL extraction, and damage detection. Firstly, a thorough review of existing IL identification methods based on signal processing is provided. Then three quasi-static IL identification methods based on measured data are discussed. Consequently, the study proposes a two-stage damage identification approach for simply supported bridges with equal span length. Also, the effectiveness of this approach is verified through field tests on a real girder bridge. At last, conclusions are drawn, and potential issues for the application of the proposed method in practice are discussed.<p />  <p>Language: en</p>
LA  - en
SN  - 1822-427X
UR  - http://dx.doi.org/10.7250/bjrbe.2022-17.560
ID  - ref1
ER  -