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Effect of bridge foundation stiffness on dynamic behavior of bridge structure

Effect of bridge foundation stiffness on dynamic behavior of bridge structure
Auteur(s): , , , ,
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Présenté pendant IABSE Congress: Engineering for Sustainable Development, New Delhi, India, 20-22 September 2023, publié dans , pp. 500-507
DOI: 10.2749/newdelhi.2023.0500
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Problems affecting the foundation of a bridge are always difficult to see because the structure is on the ground or covered by water flow. Scouring around piers and abutments can lead to unpredicta...
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Détails bibliographiques

Auteur(s): (Civil Engineering Department, ISISE, University of Minho, 4800-058 Guimaraes, Portugal)
(Civil Engineering Department, ISISE, University of Minho, 4800-058 Guimaraes, Portugal)
(Civil Engineering Department, ISISE, University of Minho, 4800-058 Guimaraes, Portugal)
(Civil Engineering Department, ISISE, University of Minho, 4800-058 Guimaraes, Portugal)
(Hydraulics, Water Resources and Environmental Division, Department of Civil Engineering, Faculty of Engineering of the University of Porto, 4200-465 Porto, Portugal; Marine Energy Research Group, CIIMAR—Interdisciplinary Centre of Marine and Environmental)
(Hydraulics, Water Resources and Environmental Division, Department of Civil Engineering, Faculty of Engineering of the University of Porto, 4200-465 Porto, Portugal; Marine Energy Research Group, CIIMAR—Interdisciplinary Centre of Marine and Environmental)
(Faculty of Science and Technology, Middlesex University, London, U.K)
Médium: papier de conférence
Langue(s): anglais
Conférence: IABSE Congress: Engineering for Sustainable Development, New Delhi, India, 20-22 September 2023
Publié dans:
Page(s): 500-507 Nombre total de pages (du PDF): 8
Page(s): 500-507
Nombre total de pages (du PDF): 8
DOI: 10.2749/newdelhi.2023.0500
Abstrait:

Problems affecting the foundation of a bridge are always difficult to see because the structure is on the ground or covered by water flow. Scouring around piers and abutments can lead to unpredictable consequences that can result in sudden collapse of the structure. In this paper, the effect of foundation stiffness (before and after the bridge repair works} on the dynamic response of the bridge structure is investigated. The results will help to diagnose the bridge foundation in the future. Based on the results of span monitoring before and after repair works combined with numerical model analysis on a bridge in Vietnam, the effects of scouring at the bridge piers are determined. The research results reveal that the dynamic responses of the structure make it possible to detect damage to the foundation and determine whether scour is likely to occur in the vicinity of the bridge foundations.