Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Connecting structure of arch foot steel-concrete combined section of steel arch bridge and construction method of connecting structure
The invention discloses a connecting structure of an arch foot steel-concrete combined section of a steel arch bridge and a construction method of the connecting structure. The connecting structure comprises a steel arch rib, a steel connecting section and a reinforced concrete pier, the steel connecting section is composed of a pre-buried section which is located in the middle and poured in the reinforced concrete pier and outward extending sections which are located at the two ends and extend out of the reinforced concrete pier. And the overhanging section is in butt welding connection with the steel arch ribs on the two sides. The bearing plate is arranged on the surface of the reinforced concrete pier and located between the pre-buried section and the overhanging section, and the pre-buried section and the overhanging section are both connected with the bearing plate in a welded mode. The surface of the steel structure of the embedded section is provided with a shear connector which is connected with pier concrete. The material characteristics of steel and concrete are fully exerted, the bending moment at the arch springing is transmitted and balanced through the connecting section steel structure, a complex hinge structure arranged at the arch springing of a traditional steel arch bridge is omitted, the construction difficulty caused by tensioning short prestressed steel beams at the pier is avoided, the construction difficulty at the arch springing of the steel arch bridge is reduced, the construction period is shortened, and the construction efficiency is improved. The construction cost is reduced.
本发明公开了一种钢拱桥拱脚钢混结合段的连接结构及其施工方法。所述连接结构包括钢拱肋、钢连接段以及钢筋砼桥墩；钢连接段由位于中间的浇筑于钢筋砼桥墩内的预埋段及位于两端的向外伸出钢筋砼桥墩的外伸段组成；外伸段与两侧的钢拱肋对焊连接。承压板设置于钢筋砼桥墩表面，且位于所述预埋段与外伸段之间，预埋段及外伸段均与承压板焊接连接。预埋段的钢结构表面设置剪力连接件与桥墩混凝土相连接。本发明充分发挥了钢材与混凝土的材料特性，将拱脚处弯矩通过连接段钢结构进行传递平衡，取消了传统钢拱桥拱脚处设置的复杂铰接结构，避免了在桥墩处张拉短预应力钢束带来的施工困难，降低了钢拱桥拱脚处施工难度，缩短工期，降低工程造价。
Connecting structure of arch foot steel-concrete combined section of steel arch bridge and construction method of connecting structure
The invention discloses a connecting structure of an arch foot steel-concrete combined section of a steel arch bridge and a construction method of the connecting structure. The connecting structure comprises a steel arch rib, a steel connecting section and a reinforced concrete pier, the steel connecting section is composed of a pre-buried section which is located in the middle and poured in the reinforced concrete pier and outward extending sections which are located at the two ends and extend out of the reinforced concrete pier. And the overhanging section is in butt welding connection with the steel arch ribs on the two sides. The bearing plate is arranged on the surface of the reinforced concrete pier and located between the pre-buried section and the overhanging section, and the pre-buried section and the overhanging section are both connected with the bearing plate in a welded mode. The surface of the steel structure of the embedded section is provided with a shear connector which is connected with pier concrete. The material characteristics of steel and concrete are fully exerted, the bending moment at the arch springing is transmitted and balanced through the connecting section steel structure, a complex hinge structure arranged at the arch springing of a traditional steel arch bridge is omitted, the construction difficulty caused by tensioning short prestressed steel beams at the pier is avoided, the construction difficulty at the arch springing of the steel arch bridge is reduced, the construction period is shortened, and the construction efficiency is improved. The construction cost is reduced.
本发明公开了一种钢拱桥拱脚钢混结合段的连接结构及其施工方法。所述连接结构包括钢拱肋、钢连接段以及钢筋砼桥墩；钢连接段由位于中间的浇筑于钢筋砼桥墩内的预埋段及位于两端的向外伸出钢筋砼桥墩的外伸段组成；外伸段与两侧的钢拱肋对焊连接。承压板设置于钢筋砼桥墩表面，且位于所述预埋段与外伸段之间，预埋段及外伸段均与承压板焊接连接。预埋段的钢结构表面设置剪力连接件与桥墩混凝土相连接。本发明充分发挥了钢材与混凝土的材料特性，将拱脚处弯矩通过连接段钢结构进行传递平衡，取消了传统钢拱桥拱脚处设置的复杂铰接结构，避免了在桥墩处张拉短预应力钢束带来的施工困难，降低了钢拱桥拱脚处施工难度，缩短工期，降低工程造价。
Connecting structure of arch foot steel-concrete combined section of steel arch bridge and construction method of connecting structure
一种钢拱桥拱脚钢混结合段的连接结构及其施工方法
WANG YI (Autor:in) / XIE BO (Autor:in) / HUANG YIQUN (Autor:in) / LYU PENGFEI (Autor:in) / DAI JIANGUO (Autor:in)
11.10.2022
Patent
Elektronische Ressource
Chinesisch
IPC:
E01D
BRIDGES
,
Brücken
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