Seismic fragility assessment of typical bridges in Northeastern Brazil

被引:3
作者
Ferreira Cavalcante, Gustavo Henrique [1 ]
Vieira Pereira, Eduardo Marques [1 ]
Rodrigues, Isabela Durci [2 ]
Marcos Vieira Junior, Luiz Carlos [1 ]
Padgett, Jamie Ellen [3 ]
Siqueira, Gustavo Henrique [1 ]
机构
[1] Univ Estadual Campinas Unicamp, Fac Engn Civil Arquitetura & Urbanismo, Dept Estruturas, Campinas, SP, Brazil
[2] Univ Sao Paulo, Dept Estruturas, Escola Engn Sao Carlos, Sao Carlos, SP, Brazil
[3] Rice Univ, Dept Civil & Environm Engn, Houston, TX USA
关键词
seismic demand; fragility functions; parametric analysis; earthquake engineering; vulnerability assessment; HIGHWAY BRIDGES; INTENSITY MEASURES; CURVES; METHODOLOGY; EARTHQUAKE; SCALAR;
D O I
10.1590/1679-78257062
中图分类号
TU [建筑科学];
学科分类号
0813 ;
摘要
This paper presents a seismic fragility assessment of bridges commonly found in Northeastern Brazil. A generic three-dimensional nonlinear finite-element model is generated in OpenSees to enable variation of geometric features and component modeling. A parametric analysis is performed to evaluate the impact of the geometric and physical variations of the bridge inventory on the seismic behavior of the structures. Nonlinear time-history analyses using four sets of natural earthquake records are performed to obtain the Probabilistic Seismic Demand Model for the bridges. Capacity models are adopted according to previous studies to be combined with demand models to generate fragility functions. This article helps the decision markers to predict the seismic behavior of typical bridges in Northeastern Brazil, which enables the evaluation of risk mitigation methods.
引用
收藏
页数:18
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