Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Weldless small box girder wet joint structure and method adopting ultra-high performance concrete
The invention discloses an ultra-high performance concrete wet joint structure with prefabricated small box girders and a construction method of the ultra-high performance concrete wet joint structure. The wet joint structure comprises a plurality of prefabricated small box girders, wherein each prefabricated small box girder is arranged along the bridge direction, and a wet joint along the bridgedirection is formed between two adjacent prefabricated small box girders; a bridge deck slab straight section is arranged at the top of the prefabricated small box girder, a plurality of annular reinforcing steel bars are pre-buried in the bridge deck slab straight section, each annular reinforcing steel bar is arranged in the transverse bridge direction, and the annular ends of the annular reinforcing steel bars extend into the wet joints; a plurality of constructional steel bars are arranged in the wet joint, and each constructional steel bar is arranged in the bridge direction; ultra-high-performance concrete is poured into the wet joints, the constructional steel bars and the annular steel bars extending into the wet joints are wrapped in the ultra-high-performance concrete, and everytwo adjacent small prefabricated box girders are connected into a whole through the ultra-high-performance concrete of the wet joints and the annular steel bars wrapped in the ultra-high-performanceconcrete. According to the invention, the construction procedure can be simplified, the construction efficiency is improved, the manufacturing cost is reduced, and the construction quality is effectively improved.
本发明公开了一种预制小箱梁的超高性能混凝土湿接缝结构及其施工方法，湿接缝结构包括多根预制小箱梁，每根预制小箱梁沿顺桥向布置，在相邻两根预制小箱梁之间形成顺桥向的湿接缝；预制小箱梁的顶部设置有桥面板平直段，在桥面板平直段内预埋有多根环形钢筋，每根环形钢筋沿横桥向布置，环形钢筋的环形端部延伸至湿接缝内；湿接缝内设置有多根构造钢筋，每根构造钢筋沿顺桥向布置；湿接缝内浇筑超高性能混凝土，将构造钢筋和延伸至湿接缝内的环形钢筋包裹在超高性能混凝土内，相邻两根预制小箱梁通过湿接缝的超高性能混凝土和包裹在超高性能混凝土内的环形钢筋连接为一体。本发明能够简化施工程序，提高施工效率，降低造价，有效提高施工质量。
Weldless small box girder wet joint structure and method adopting ultra-high performance concrete
The invention discloses an ultra-high performance concrete wet joint structure with prefabricated small box girders and a construction method of the ultra-high performance concrete wet joint structure. The wet joint structure comprises a plurality of prefabricated small box girders, wherein each prefabricated small box girder is arranged along the bridge direction, and a wet joint along the bridgedirection is formed between two adjacent prefabricated small box girders; a bridge deck slab straight section is arranged at the top of the prefabricated small box girder, a plurality of annular reinforcing steel bars are pre-buried in the bridge deck slab straight section, each annular reinforcing steel bar is arranged in the transverse bridge direction, and the annular ends of the annular reinforcing steel bars extend into the wet joints; a plurality of constructional steel bars are arranged in the wet joint, and each constructional steel bar is arranged in the bridge direction; ultra-high-performance concrete is poured into the wet joints, the constructional steel bars and the annular steel bars extending into the wet joints are wrapped in the ultra-high-performance concrete, and everytwo adjacent small prefabricated box girders are connected into a whole through the ultra-high-performance concrete of the wet joints and the annular steel bars wrapped in the ultra-high-performanceconcrete. According to the invention, the construction procedure can be simplified, the construction efficiency is improved, the manufacturing cost is reduced, and the construction quality is effectively improved.
本发明公开了一种预制小箱梁的超高性能混凝土湿接缝结构及其施工方法，湿接缝结构包括多根预制小箱梁，每根预制小箱梁沿顺桥向布置，在相邻两根预制小箱梁之间形成顺桥向的湿接缝；预制小箱梁的顶部设置有桥面板平直段，在桥面板平直段内预埋有多根环形钢筋，每根环形钢筋沿横桥向布置，环形钢筋的环形端部延伸至湿接缝内；湿接缝内设置有多根构造钢筋，每根构造钢筋沿顺桥向布置；湿接缝内浇筑超高性能混凝土，将构造钢筋和延伸至湿接缝内的环形钢筋包裹在超高性能混凝土内，相邻两根预制小箱梁通过湿接缝的超高性能混凝土和包裹在超高性能混凝土内的环形钢筋连接为一体。本发明能够简化施工程序，提高施工效率，降低造价，有效提高施工质量。
Weldless small box girder wet joint structure and method adopting ultra-high performance concrete
采用超高性能混凝土的无焊接小箱梁湿接缝结构及方法
GAO QINGFENG (Autor:in) / LI YAN (Autor:in) / ZHANG PENG (Autor:in) / XIE BIN (Autor:in) / TIAN CHUAN (Autor:in) / DU PENG (Autor:in) / CHEN LONG (Autor:in) / ZHOU LI (Autor:in) / XIONG JUN (Autor:in) / SUN DONGLI (Autor:in)
31.07.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
E01D
BRIDGES
,
Brücken
Online Contents | 1997