Seismic fragility curves for concrete gravity retaining wall

被引：0

作者：

Li, Qionglin ^{[1
,2
]}

Li, Pangju ^{[1
,2
]}

Cui, Kai ^{[1
,2
]}

Ji, Yanzhi ^{[1
,2
]}

Zhang, Dongjie ^{[1
,2
]}

Qing, Yulan ^{[1
,2
]}

机构：

[1] Southwest Jiaotong Univ, MOE Key Lab High Speed Railway Engn, Chengdu 610031, Peoples R China

[2] Southwest Jiaotong Univ, Sch Civil Engn, Chengdu 610031, Peoples R China

来源：

SOIL DYNAMICS AND EARTHQUAKE ENGINEERING | 2024年 / 183卷

关键词：

Seismic fragility curve; Concrete gravity retaining wall; Backfill slope angle; Intensity measure; Incremental dynamic analysis; INTENSITY MEASURES; MODEL;

D O I：

10.1016/j.soildyn.2024.108806

中图分类号：

P5 [地质学];

学科分类号：

0709 ; 081803 ;

摘要：

Seismic fragility analysis plays a crucial role in performance-based seismic design (PBSD). The seismic fragility analyses for the concrete gravity retaining walls were performed in this study. Numerical models were developed for two concrete gravity retaining walls using OpenSees, considering two different backfill slope angles (0 degrees and 12 degrees). According to the probabilistic seismic demand models and comprehensive evaluation of intensity measures (IMs), the most suitable IM for concrete gravity retaining walls was determined. An approach for quantifying the limit state performance of concrete gravity retaining walls based on IDA was also proposed, and its reliability was verified based on observed damage during the 2008 Wenchuan earthquake. Seismic fragility curves for concrete gravity retaining walls were established under two backfill slope angles using three IMs. It is demonstrated to what extent a backfill slope angle can influence the damage probability under a specific seismic intensity level.

引用

页数：16

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