Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Design, Construction and Application of Cable Hoisting System
The installation technology of arch ribs is one of the foundations of arch bridge development. From construction with supports to that with fewer or even no support, each method has been gradually developed through long-term practice. Construction with supports is a traditional method which is constrained by the bridge site, terrain, and geology. Moreover, with the increase in bridge span, construction costs and risks also rise. At present, the most commonly used method for the arch rib construction of the large-span arch bridge is support-free constructions, including cable-stayed fastening-hanging cantilever assembly, suspended-basket grouting, rotation construction, and integral lifting construction. Among them, the first one is most commonly used in the construction of CFST arch bridges with a span exceeding 200 m. The method of cable hoisting and cable-stayed fastening-hanging cantilever assembly is to lift arch rib segments with a cable crane and secure them in place with equipments such as buckle cable and hawser cable for arch rib installation. Typically, the arch rib segments are symmetrically lifted in a proper order, and butted to create two cantilevered arch sections. Finally, the closure segment is installed between the two sections, and the buckle cables are loosened to form the complete arch ring.
Design, Construction and Application of Cable Hoisting System
The installation technology of arch ribs is one of the foundations of arch bridge development. From construction with supports to that with fewer or even no support, each method has been gradually developed through long-term practice. Construction with supports is a traditional method which is constrained by the bridge site, terrain, and geology. Moreover, with the increase in bridge span, construction costs and risks also rise. At present, the most commonly used method for the arch rib construction of the large-span arch bridge is support-free constructions, including cable-stayed fastening-hanging cantilever assembly, suspended-basket grouting, rotation construction, and integral lifting construction. Among them, the first one is most commonly used in the construction of CFST arch bridges with a span exceeding 200 m. The method of cable hoisting and cable-stayed fastening-hanging cantilever assembly is to lift arch rib segments with a cable crane and secure them in place with equipments such as buckle cable and hawser cable for arch rib installation. Typically, the arch rib segments are symmetrically lifted in a proper order, and butted to create two cantilevered arch sections. Finally, the closure segment is installed between the two sections, and the buckle cables are loosened to form the complete arch ring.
Design, Construction and Application of Cable Hoisting System
Zheng, Jielian (Autor:in)
15.10.2024
55 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
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