Seismic fragility assessment of an in-service piled bridge abutment subjected to a liquefaction-induced lateral spreading and mitigation strategy

被引:1
|
作者
Zhou, Haizuo [1 ,2 ,3 ,4 ]
Ma, Fujian [2 ,3 ]
Xia, Chenhao [2 ,3 ]
Yu, Xiaoxuan [1 ,2 ,3 ]
Hu, Qichao [2 ,3 ]
He, Yi [1 ,5 ,6 ]
机构
[1] Tianjin Univ, State Key Lab Hydraul Engn Intelligent Construct &, Tianjin, Peoples R China
[2] Tianjin Univ, Sch Civil Engn, Tianjin 300072, Peoples R China
[3] Tianjin Univ, Key Lab Coast Civil Struct Safety, Minist Educ, Tianjin 300072, Peoples R China
[4] Tianjin Univ, Key Lab Earthquake Engn Simulat & Seism Resilience, China Earthquake Adm, Tianjin 300350, Peoples R China
[5] Southwest Jiaotong Univ, Fac Geosci & Environm Engn, Chengdu 610031, Peoples R China
[6] Southwest Jiaotong Univ, Key Lab High Speed Railway Engn, Minist Educ, Chengdu 610031, Peoples R China
基金
中国国家自然科学基金;
关键词
Seismic; Liquefaction remedial measures; In-service piled bridge abutments; Transport infrastructures; Fragility curves;
D O I
10.1016/j.soildyn.2024.108786
中图分类号
P5 [地质学];
学科分类号
0709 ; 081803 ;
摘要
This study assesses the seismic fragility curves of in-service piled bridge abutments on liquefaction-prone soils and evaluates an optimal countermeasure within the vulnerability framework. Seismic fragility curves, accounting for varying ground motion intensities, assess the seismic risk and describe abutment damage through settlement measurements. The ageing abutment performance is estimated by integrating a corrosion model into fragility curves. The impact of different sheet pile positions on the seismic performance of in-service piled bridge abutments is analysed, and the optimal pile position is discussed. The developed fragility curves provide a rapid and effective risk assessment tool for the seismic performance of in-service abutments and guide liquefaction remedial measures.
引用
收藏
页数:6
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