Vulnerability of a Damaged Bridge Abutment in a Seismic Area
Publication: Journal of Performance of Constructed Facilities
Volume 32, Issue 5
Abstract
The case of the abutment of a motorway urban viaduct damaged by human intervention is presented. Built in the 1960s, it lies in a critical seismic area and the human-induced damage involved the elements of the abutment foundation. The structure is geometrically complex and the evaluations of its structural safety were carried out by applying Italian codes from different times: those concerning the time of construction, those of a recent past (1996), and those of the present (2008), inspired by Eurocodes. A comparison between the safety checks performed and the requirements of all these codes is presented and discussed, especially regarding safety coefficients after the damage was done. Two different structural models were performed: a simplified one focused on the foundation plate and piles for a first approach of the analytical evaluations; and a complete three-dimensional finite-element model of the bridge on which numerical simulations were carried out for different load combinations and in which all structural elements were considered (deck, abutment, and foundation). The main aspects, believed to be the fundamental ones for specific evaluation of the global and local structural safety, are discussed. A hypothesis for restoration is presented, as well as the relevant technical and administrative items linked to the application and reliability of the Italian code on existing structures.
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References
AICAP (Italian Association for Reinforced and Prestressed Concrete). 2009. Progettazione di strutture in cemento armato. Rome, Italy: AICAP.
CEN (European Committee for Standardization). 2003. Eurocode 1. Actions on structures. Part 2: Traffic loads on bridges. EN 1991-2. Brussels, Belgium: CEN.
CEN (European Committee for Standardization). 2005. Eurocode 2. Design of concrete structures. Part 2: Concrete bridges: Design and detailing rules. EN 1992-2. Brussels, Belgium: CEN.
Chen, W. F., and L. Duan. 1999. Bridge engineering handbook. Washington, DC: CRC Press.
Consiglio Superiore dei Lavori Pubblici. 2009. Circolare 02/02/2009 n. 617: Istruzioni per l′applicazione delle ′Nuove norme tecniche per le costruzioni′ di cui al D.M. 14 gennaio 2008. Rome: IPZS.
Lambe, T. W., and R. V. Whitman. 2008. Soil mechanics. New York: Wiley.
Ministry of Infrastructures. 2008. D.M. 14/01/2008: Approvazione delle nuove norme tecniche per le costruzioni. Serie Generale n.29, 04/02/2008-Supplemento Ordinario n. 30. Rome: IPZS.
Santarella, L. 2002. “Il cemento armato.” La tecnica e la statica. 22nd ed., Milan, Italy: Hoepli.
Viggiani, C. 1999. Fondazioni, 568. Benevento, Italy: Hevelius.
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©2018 American Society of Civil Engineers.
History
Received: Nov 2, 2017
Accepted: May 9, 2018
Published online: Aug 13, 2018
Published in print: Oct 1, 2018
Discussion open until: Jan 13, 2019
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