Characterisation of an urban bridge portfolio and multi-risk prioritisation accounting for deterioration and seismic vulnerability

被引:3
作者
Saler, Elisa [1 ]
Dona, Marco [1 ]
Pernechele, Valentina [1 ]
Tecchio, Giovanni [1 ]
da Porto, Francesca [1 ]
机构
[1] Univ Padua, Dept Geosci, Via Gradenigo 6, I-35131 Padua, Italy
关键词
Bridges; Prioritization; Deterioration; Seismic vulnerability; Multi -risk classification; FRAGILITY CURVES; HIGHWAY BRIDGES; MANAGEMENT; MODELS;
D O I
10.1016/j.ijdrr.2023.103596
中图分类号
P [天文学、地球科学];
学科分类号
07 ;
摘要
This contribution proposes a procedure to prioritise retrofit interventions on stocks of bridges according to their seismic vulnerability. The procedure also combines a previously presented approach to evaluate deterioration effects on bridges at a territorial scale. Thereby, the combi-nation of the two approaches provides a multi-risk classification method for bridge stocks. This method also allows refined prioritisation within each class, based on the proposed quantitative indices and on multicriteria decision-making methods. The method was applied to the bridge stock managed by the municipality of Padova, in North-East Italy. First, an extensive charac-terisation of the analysed stock is provided, according to typological, geometric, and structural parameters. Then, the application of the combined approach is presented, highlighting which bridge types resulted more vulnerable to either seismic actions or deterioration effects.
引用
收藏
页数:29
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