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Repair of Impacted Concrete Bridge Beams

 Repair of Impacted Concrete Bridge Beams
Auteur(s): ,
Présenté pendant IABSE Symposium: Engineering for Progress, Nature and People, Madrid, Spain, 3-5 September 2014, publié dans , pp. 2985-2990
DOI: 10.2749/222137814814069750
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Reinforced and prestressed concrete bridge superstructures impacted by overheight trucks may require the bridge to be categorized as structurally deficient in case the impact causes moderate to se...
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Détails bibliographiques

Auteur(s):

Médium: papier de conférence
Langue(s): anglais
Conférence: IABSE Symposium: Engineering for Progress, Nature and People, Madrid, Spain, 3-5 September 2014
Publié dans:
Page(s): 2985-2990 Nombre total de pages (du PDF): 6
Page(s): 2985-2990
Nombre total de pages (du PDF): 6
Année: 2014
DOI: 10.2749/222137814814069750
Abstrait:

Reinforced and prestressed concrete bridge superstructures impacted by overheight trucks may require the bridge to be categorized as structurally deficient in case the impact causes moderate to severe damage. Consequently, load posting on the bridge may be required. In some instances, the bridge will be closed. A number of incidences have been reported where concrete blocks have come loose from the impacted region, days or weeks following the impact, and fell on vehicles traveling under the impacted beams causing harm, or even death, to the vehicle occupants.

This paper presents a two-stage approach for the containment and repair of the damage area in impacted concrete bridge beams. The first approach outlines the immediate action following an impact to prevent loose concrete blocks from falling on the traveling public. The second approach outlines the methodology for repairing the impacted area and also providing containment in the event future impacts were to occur. A discussion of the advantages and limitations of this approach, along with the lessons learned from the field applications are presented in the paper

Mots-clé:
béton pont renforcement