A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Prefabrication and Erection Technology of Wide Box Girders in Cross-Sea Bridge
In the approach spans of Quanzhou Bay Cross-sea Bridge, these standard spans are 50m or 70m , width is 20.05m.The approach spans have been built by using short Line segments precast and erection method. This is the first application in the cross sea bridges. According to characteristics of this project, the research on prefabrication and erection technology of wide box girders has been carried out to solve the technical problems in the process of construction. The research show that: 1)In precasting process , the vertical deformation of wide box girder is very small under dead load and temperature load etc. so the influence of prefabrication and erection accuracy can be ignored; 2)The temporary anchor using prestressed steel strand better than planished steel; 3) When using epoxy gasket to adjust geometric line shape, the thickness of cemented layer has a great influence on the linear adjustment;4)The epoxy gasket and bridge erecting machine should be used together, Alignment adjustmen could obtain satisfactory results.
Prefabrication and Erection Technology of Wide Box Girders in Cross-Sea Bridge
In the approach spans of Quanzhou Bay Cross-sea Bridge, these standard spans are 50m or 70m , width is 20.05m.The approach spans have been built by using short Line segments precast and erection method. This is the first application in the cross sea bridges. According to characteristics of this project, the research on prefabrication and erection technology of wide box girders has been carried out to solve the technical problems in the process of construction. The research show that: 1)In precasting process , the vertical deformation of wide box girder is very small under dead load and temperature load etc. so the influence of prefabrication and erection accuracy can be ignored; 2)The temporary anchor using prestressed steel strand better than planished steel; 3) When using epoxy gasket to adjust geometric line shape, the thickness of cemented layer has a great influence on the linear adjustment;4)The epoxy gasket and bridge erecting machine should be used together, Alignment adjustmen could obtain satisfactory results.
Prefabrication and Erection Technology of Wide Box Girders in Cross-Sea Bridge
Advanced Materials Research ; 1065-1069 ; 882-888
2014-12-11
7 pages
Article (Journal)
Electronic Resource
English
Prefabrication and Erection Technology of Wide Box Girders in Cross-Sea Bridge
| British Library Conference Proceedings | 2015
Prefabrication speeds wall erection
Engineering Index Backfile | 1938
Prefabrication speeds wall erection
Engineering Index Backfile | 1938
Erection of additional girders -- Williamsburg bridge towers
Engineering Index Backfile | 1909
Erection of the main span cross-girders of Sydney harbor bridge
Engineering Index Backfile | 1931