Naslov
Construction of Krka River Arch Bridge near Skradin

Autori
Šavor, Zlatko ; Mujkanović, Nijaz ; Hrelja, Gordana ; Kindij, Alex ; Trlaja, Davor

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
CONSTRUCTION OF ARCH BRIDGES / Chen, Baochun ; Radić, Jure - Zagreb : SECON, 2009, 323-332

ISBN
978-953-7621-03-2

Skup
2nd Chinese-Croatian Joint Colloquium on CONSTRUCTION OF ARCH BRIDGES

Mjesto i datum
Fuzhou, Kina, 05.10.2009. - 09.10.2009

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Arch; Bridge; Bridge design; Free cantilevering; Auxiliary pylons

Sažetak
A new concrete arch bridge with 204.0 m span was constructed across the Krka River canyon on the section Skradin-Šibenik of the Adriatic highway. The bridge site lies in an environmentally protected area very close to the Krka national park. The superstructure is continuous with spans L=3x32.0+3x28.0+3x32.0+28.0+24.0=360.0 m. The application of the composite superstructure, made possible significant reduction of the dead weight and enhanced the bridge appearance in comparison to other Croatian concrete arch bridges. The construction of the bridge across the Krka River canyon commenced in the year 2003 and was successfully completed in two years in the year 2005. The whole arch cross section was constructed by free cantilevering, on traveling formwork carriages, in segments 5.25 meters long, starting symmetrically from arch abutments. Double columns at the arch abutments had to be extended by auxiliary steel staying pylons to facilitate successive cantilevering. The arch was supported during construction by stays equilibrated by anchor stays, connected to rock anchors. The steel superstructure grillage was erected by longitudinal launching in three phases. The concrete deck plate constists of from full depth precast slabs interconnected by on site concreting of longitudinal and transversal joints above shear connectors. A detailed review of the Krka Bridge construction is elaborated upon in the paper.

Izvorni jezik
Engleski

Znanstvena područja
Građevinarstvo

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