Seismic Damage Analysis on the Continuous Girder Bridge of Urban Rail Transit Line

• Published in: Applied Mechanics and Materials Vol. 488-489; no. Materials Science, Civil Engineering and Architecture Science, Mechanical Engineering and Manufacturing Technology; pp. 398 - 402
• Main Authors: Ni, Yong Jun, Li, Hai Qing, Liu, Xin Gang, Yan, Jin Xing
• Format: Journal Article
• Language: English
• Published: Zurich Trans Tech Publications Ltd 01.01.2014
• Subjects: Bridges (structures); Damage; Damage assessment; Earthquake damage; Earthquakes; Seismic phenomena; Seismic response; Urban rail; Continuous Girder Bridge; Seismic Performance Evaluation; Seismic Damage; Incremental Dynamic Analysis; Urban Rail Transit
• ISBN: 3037859768; 9783037859766
• ISSN: 1660-9336; 1662-7482; 1662-7482
• DOI: 10.4028/www.scientific.net/AMM.488-489.398

Seismic damage was the key reason which resulted in the serviceability degradation or collapse of the bridge. How to quantify the seismic damage and evaluate the seismic performance of the bridge under earthquakes through the damage analysis was the significant research direction in the performance based seismic design. In this paper the Park-Ang model (a well-known dual parameters model) and its modification version used for the damage evaluation of the concrete structure were compared. Furthermore, through the definition of the damage indices of the models based on the modified Park-Ang model and the descending slope of the IDA(incremental dynamic analysis) curve, the seismic damage levels of the typical bridge in the urban rail transit line under the designated earthquakes were analyzed, respectively. It was shown from the results that the calculated results from the two model was essentially consistent. The damage analysis based evaluation method was feasibly used for the seismic performance evaluation of the bridge.