Study on Seismic Performance of Continuous T-Beam Bridge—Kulungou Bridge  

作　　者：Jiuqing Zhou Daming Lin Leifa Li Guanghui Zhang Shumao Qiu 

机构地区：[1]Xinjiang Transportation Investment(Group)Co.,Ltd.,Urumqi,830002,China [2]Xinjiang Communications Investment Construction Group Co.,Urumqi,830049,China [3]Key Laboratory of Highway Engineering Technology in Arid Desert Areas of Transport Industry,Urumqi,830099,China [4]Research Institute of Highway,Ministry of Transport,Beijing,100088,China

出　　处：《Structural Durability & Health Monitoring》2025年第3期705-729,共25页结构耐久性与健康监测(英文)

基　　金：Supported by the Scientific and Technological Research and Development Program of Xinjiang Transportation Investment(Group)Co.,Ltd.:XJJTZKX-FWCG-202312-0456。

摘　　要：The objective of this research is to assess the seismic behavior of the continuous T-beam bridge located at Kulungou in Xinjiang.In addition to traditional static and modal analyses,this study introduces a novel approach by comprehensively examining the performance of the bridge during construction stages,under ultimate load capacities and seismic load.Compliance with regulatory standards is verified by the static analysis,which also yields a thorough comprehension of stress distribution across various stages of construction.By unveiling the initial 100 vibration modes,the modal analysis has significantly enhanced our comprehension and established a robust basis for the ensuing seismic analysis.A distinctive aspect of this research is its comprehensive exploration of the bridge’s seismic behavior under E1 and E2 earthquake excitations.Under E1 earthquake excitation,the response spectrum analysis confirms the adequacy of the bridge piers’strength according to seismic design criteria,whereas the time-history analysis conducted under E2 ground motion reveals the bridge’s robust resistance to strong earthquakes.This study also undertakes a comparative assessment of the seismic behavior of the bridge,contrasting its performance with lead-rubber bearings against that with high-damping rubber bearings.According to the study’s findings,both types of bearings demonstrate their efficacy in mitigating seismic responses,thereby emphasizing their potential as innovative approaches to enhance the resilience of bridges.A notable contribution of this research lies in its assessment of seismic performance indicators,namely hysteresis curves,backbone curves,and ductility coefficients,utilizing Pushover analysis.By conducting a thorough evaluation,a more profound insight into the seismic performance of bridge piers is gained.In conclusion,the study explores how earthquake wave intensity and aftershocks affect the seismic response of bridge piers,showing a substantial increase in seismic response with intensifying wave magni

关 键 词：Continuous T-beam bridge seismic performance finite element model earthquake response analysis 

分 类 号：P31[天文地球—固体地球物理学]