Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Prefabricated ultra-high performance concrete arch bridge and construction method thereof
The invention discloses a prefabricated ultra-high performance concrete arch bridge and a construction method thereof, and belongs to the technical field of bridge construction. The arch bridge comprises a skewback, an arch rib, a bridge abutment and a building on the arch, the skewback and the bridge abutment are oppositely arranged and fixed to the ground, a main arch ring comprises the arch rib and a cross beam connected with the arch rib, the cross section of the arch rib is a double-box double-chamber type cross section, the arch rib is divided into a plurality of sections, and a prefabricated assembly type method is adopted for construction. Every two adjacent arch rib sections are connected through an arch rib connector, each arch rib connector comprises an end cross beam, prestressed ducts are evenly formed in the end face, away from the corresponding arch rib section, of each cross beam, every two adjacent end cross beams are mechanically connected through a spiral steel bar, and arch rib prefabrication adopts a long-line coupling prefabrication method to guarantee the construction precision of the arch rib connectors. The ultra-high-performance concrete can be adopted for building the arch bridge, the dead weight of the arch rib can be greatly reduced, the section length of the single arch rib is increased, and the construction precision of the prefabricated assembly structure can be improved by adopting the long-line coupling prefabrication method for construction.
本发明公开了一种预制装配式超高性能混凝土拱桥及其施工方法，属于桥梁施工技术领域。包括拱座、拱肋、桥台和拱上建筑，所述拱座、桥台相对设置并与地面固定，主拱圈包括拱肋以及连接的拱肋的横梁，所述拱肋的横截面为双箱双室型截面，所述拱肋分为若干节段，采用预制装配式方法施工，相邻的所述拱肋节段通过拱肋接头连接，所述拱肋接头包括端横梁，所述横梁远离拱肋节段的一端面上均匀布置有预应力孔道，两个相邻的所述端横梁通过螺旋钢棒机械连接，拱肋预制采用长线耦合预制方法保证拱肋接头施工精度。本发明能采用超高性能混凝土建造拱桥，可大大减小拱肋自重，增大单节拱肋节段长度，采用长线耦合预制法施工可提高预制装配结构的施工精度。
Prefabricated ultra-high performance concrete arch bridge and construction method thereof
The invention discloses a prefabricated ultra-high performance concrete arch bridge and a construction method thereof, and belongs to the technical field of bridge construction. The arch bridge comprises a skewback, an arch rib, a bridge abutment and a building on the arch, the skewback and the bridge abutment are oppositely arranged and fixed to the ground, a main arch ring comprises the arch rib and a cross beam connected with the arch rib, the cross section of the arch rib is a double-box double-chamber type cross section, the arch rib is divided into a plurality of sections, and a prefabricated assembly type method is adopted for construction. Every two adjacent arch rib sections are connected through an arch rib connector, each arch rib connector comprises an end cross beam, prestressed ducts are evenly formed in the end face, away from the corresponding arch rib section, of each cross beam, every two adjacent end cross beams are mechanically connected through a spiral steel bar, and arch rib prefabrication adopts a long-line coupling prefabrication method to guarantee the construction precision of the arch rib connectors. The ultra-high-performance concrete can be adopted for building the arch bridge, the dead weight of the arch rib can be greatly reduced, the section length of the single arch rib is increased, and the construction precision of the prefabricated assembly structure can be improved by adopting the long-line coupling prefabrication method for construction.
本发明公开了一种预制装配式超高性能混凝土拱桥及其施工方法，属于桥梁施工技术领域。包括拱座、拱肋、桥台和拱上建筑，所述拱座、桥台相对设置并与地面固定，主拱圈包括拱肋以及连接的拱肋的横梁，所述拱肋的横截面为双箱双室型截面，所述拱肋分为若干节段，采用预制装配式方法施工，相邻的所述拱肋节段通过拱肋接头连接，所述拱肋接头包括端横梁，所述横梁远离拱肋节段的一端面上均匀布置有预应力孔道，两个相邻的所述端横梁通过螺旋钢棒机械连接，拱肋预制采用长线耦合预制方法保证拱肋接头施工精度。本发明能采用超高性能混凝土建造拱桥，可大大减小拱肋自重，增大单节拱肋节段长度，采用长线耦合预制法施工可提高预制装配结构的施工精度。
Prefabricated ultra-high performance concrete arch bridge and construction method thereof
一种预制装配式超高性能混凝土拱桥及其施工方法
HAN YU (Autor:in) / WENG YILING (Autor:in) / SHI ZHI (Autor:in) / LIU XUELEI (Autor:in) / QIN YAOLIU (Autor:in) / LI CAIXIA (Autor:in) / LU YI (Autor:in) / MA WEN'AN (Autor:in) / XIE WEIWEI (Autor:in) / TANG RUIKAI (Autor:in)
07.05.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
E01D
BRIDGES
,
Brücken
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