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izvor podataka: crosbi

Maintenance and Repair of Large Concrete Arch Bridges (CROSBI ID 515837)

Prilog sa skupa u zborniku | izvorni znanstveni rad | međunarodna recenzija

Šavor, Zlatko ; Radić, Jure ; Puž, Goran Maintenance and Repair of Large Concrete Arch Bridges // IABMAS'02: Bridge Maintenance, Safety and Management / Casas, J.R. ; Frangopol, D.M. ; Nowak, A.S. (ur.). Barcelona: International Center for Numerical Methods in Engineering (CIMNE), 2002. str. 1-8-x

Podaci o odgovornosti

Šavor, Zlatko ; Radić, Jure ; Puž, Goran

engleski

Maintenance and Repair of Large Concrete Arch Bridges

Four large concrete arch bridges were built on the Croatian Adriatic coast during the sixties and the seventies, spanning 193 m to 390 m. All these arches were erected utilising the free cantilevering method. All bridges have the box type arch cross-section, consisting of three cells, slender piers, and superstructure comprising precast prestressed concrete girders. These all bridges exhibit some common characteristics ; minimum dimensions of structural elements and a thin concrete cover, which influence their durability. Results of inspections and testing confirmed degradation of structural parts, primarily due to inadequate conceptual design, errors on site and exposure to aggressive maritime environment. Only minor repairs had been performed on the Šibenik Bridge. The Pag bridge was completely renewed: the arch was repaired in 1991., and the superstructure was replaced in 1999. Repairs of the piers and the superstructure are in progress on the Krk Bridge. Various solutions for the arch protection have been investigated, but none of them adopted yet. The Maslenica bridge, completed in 1997., is a concrete arch of 200 meters span. It was designed taking into the account the severity of the marine environment, and the experience from inspections of other arch bridges. The paper presents an overview of maintenance and repair of the bridges in the marine environment. Design recommendations for bridges over sea straits derived from experience and applied to the Maslenica arch bridge, are given.

arch bridge; bridge repair; concrete deterioration; bridge design

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Podaci o prilogu

1-8-x.

2002.

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objavljeno

Podaci o matičnoj publikaciji

IABMAS'02: Bridge Maintenance, Safety and Management

Casas, J.R. ; Frangopol, D.M. ; Nowak, A.S.

Barcelona: International Center for Numerical Methods in Engineering (CIMNE)

Podaci o skupu

First International Conference on Bridge Maintenance, Safety and Management

predavanje

14.06.2002-17.06.2002

Barcelona, Španjolska

Povezanost rada

Građevinarstvo