%0 Journal Article
%T Quasi-static influence line identification and damage identification of equal-span bridges based on measured vehicle-induced deflection
%J Baltic journal of road and bridge engineering
%D 2022
%A Yang, Kang
%A Ding, Youliang
%A Zhao, Hanwei
%A Geng, Fangfang
%A Sun, Zhen
%V 17
%N 2
%P 47-74
%X 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>
%G en
%I Technika
%@ 1822-427X
%U http://dx.doi.org/10.7250/bjrbe.2022-17.560