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A New Solution for Fabrication & Erection of Composite Box Girder of Cable-Stayed Bridge

A New Solution for Fabrication & Erection of Composite Box Girder of Cable-Stayed Bridge
Auteur(s): , ,
Présenté pendant IABSE Conference: Structural Engineering: Providing Solutions to Global Challenges, Geneva, Switzerland, September 2015, publié dans , pp. 1517-1522
DOI: 10.2749/222137815818358835
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Quanzhou bay bridge is a sea-crossing approach which is located on the southeast coast of China near Quanzhou city. The main bridge is a cable-stayed bridge with steel-RC composite box girder and m...
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Détails bibliographiques

Auteur(s): (CCCC Second Harbor Engineering Company, Wuhan, China)
(CCCC Highway Bridges National Engineering Research Center, Ltd, Wuhan, CHINA)
(CCCC Second Harbor Engineering Company, Wuhan, China)
Médium: papier de conférence
Langue(s): anglais
Conférence: IABSE Conference: Structural Engineering: Providing Solutions to Global Challenges, Geneva, Switzerland, September 2015
Publié dans:
Page(s): 1517-1522 Nombre total de pages (du PDF): 6
Page(s): 1517-1522
Nombre total de pages (du PDF): 6
Année: 2015
DOI: 10.2749/222137815818358835
Abstrait:

Quanzhou bay bridge is a sea-crossing approach which is located on the southeast coast of China near Quanzhou city. The main bridge is a cable-stayed bridge with steel-RC composite box girder and main span 400m. Unlike the traditional wet joints between RC decks of composite segments, a new solution with dry joints for fabrication and erection of composite girder segments was used in Quanzhou bay bridge. The steel box girder segments and RC decks were fabricated separately at first. The composite segments were assembled and the steel part and RC part were combined. Because of the dry joints, the composite segments must match with each other. The fabrication and assembling works are all done in the factory. Then the integral composite segments were transported to the bridge site and erected by deck crane. Segments were connected by temporary prestressed steel bars after the deck joints were daubed with epoxy glue. The joints at steel part of composite girder were welded finally. The new solution can omit concrete pouring and casting at the construction site and improve the efficiency and quality of composite segments erection. The impact on environment during construction procedure is also reduced.

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