Pregled bibliografske jedinice broj: 240731
Maintenance and Repair of Large Concrete Arch Bridges
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 (predavanje, međunarodna recenzija, cjeloviti rad (in extenso), znanstveni)
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Naslov
Maintenance and Repair of Large Concrete Arch Bridges
Autori
Šavor, Zlatko ; Radić, Jure ; Puž, Goran
Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni
Izvornik
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), 2002, 1-8
Skup
First International Conference on Bridge Maintenance, Safety and Management
Mjesto i datum
Barcelona, Španjolska, 14.06.2002. - 17.06.2002
Vrsta sudjelovanja
Predavanje
Vrsta recenzije
Međunarodna recenzija
Ključne riječi
arch bridge; bridge repair; concrete deterioration; bridge design
Sažetak
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.
Izvorni jezik
Engleski
Znanstvena područja
Građevinarstvo
