Characterisation of an urban bridge portfolio and multi-risk prioritisation accounting for deterioration and seismic vulnerability. (March 2023)

• Record Type: Journal Article
• Authors: Saler, Elisa; Donà, Marco; Pernechele, Valentina; Tecchio, Giovanni; da Porto, Francesca
• Is Part Of: International journal of disaster risk reduction. Volume 87(2023)
• Publication Date: 2023-03
• Subjects: Bridges -- Prioritization -- Deterioration -- Seismic vulnerability -- Multi-risk classification; DM Masonry deck -- DC Reinforced concrete deck -- DPC Prestressed reinforced concrete deck -- DS Steel deck -- DCS Composite steel deck -- ARCH Arch -- SIM Simply supported -- GER Multi-span Gerber scheme -- CONT Continuous span -- RET_SIM Reticular – simply supported -- CBL Cable bridge -- PC Reinforced concrete pier -- PM Masonry pier -- PS Steel pier -- PSC Single column pier -- PW Wall pier -- PF2 Double frame pier -- PFM Multi-frame pier -- SR Solid rectangular section -- SC Solid circular section -- HS Hollow simply connected section -- HM Hollow multiply connected section -- AC Reinforced concrete abutment -- AM Masonry abutment -- AST Stone abutment -- KL Knowledge level; Emergency management -- Periodicals; Risk management -- Periodicals; Disaster relief -- Periodicals; Hazard mitigation -- Periodicals; 363.34
• DOI: 10.1016/j.ijdrr.2023.103596
• Languages: English
• ISSNs: 2212-4209

Abstract

Abstract: 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 combination 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 characterisation 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.