Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Prefabricated U-shaped steel-concrete combined box girder structure and construction method
The invention discloses a prefabricated U-shaped steel-concrete combined box girder structure and a construction method, and belongs to the technical field of bridges, the prefabricated U-shaped steel-concrete combined box girder structure comprises a plurality of prefabricated lightweight concrete slabs and arc-shaped steel box girders, the prefabricated lightweight concrete slabs are spliced together to form a bridge deck slab, steel bars are reserved at the joints of the prefabricated lightweight concrete slabs, and the arc-shaped steel box girders are connected with the prefabricated lightweight concrete slabs. Joints between every two adjacent prefabricated lightweight concrete slabs are fixedly connected through cast-in-place high-strength concrete, the arc-shaped steel box girder is an arc-shaped steel plate, steel flange plates are machined at the left end and the right end of the arc-shaped steel box girder in a rolling mode, and the arc-shaped steel box girder is fixedly installed at the bottom of the bridge deck slab through the steel flange plates. The research and development aims at solving the problems that the construction cost of a prefabricated assembly type concrete beam is too high, prefabricated parts are too heavy, studs are arranged too densely, consequently, group nails are reduced, and welding seams of a prefabricated steel-concrete composite beam are too many, the prefabricated arc-shaped steel box beam is formed in a steel mill in a rolling mode, the construction cost of a prefabricated assembly type bridge is reduced, and the manufacturing speed of the prefabricated box beam is increased; the bridge construction period is shortened.
一种预制装配式U形钢‑混组合箱梁结构及施工方法，属于桥梁技术领域，包括预制轻质混凝土板和弧形钢箱梁，所述预制轻质混凝土板为多块，共同拼接成桥面板，预制轻质混凝土板的连接处预留钢筋，每相邻两个预制轻质混凝土板之间接缝处通过现浇高强混凝土固定连接，弧形钢箱梁为弧形钢板，弧形钢箱梁左右两端通过辊压加工有钢翼缘板，弧形钢箱梁通过钢翼缘板固定安装于桥面板底部，本发明研发目的是为了解决预制装配式混凝土梁建设成本过高、预制构件过重、栓钉布置过密导致群钉折减以及预制钢‑混组合梁焊缝过多的问题，预制弧形钢箱梁在钢厂辊压成型，降低预制装配式桥梁建设成本，加快预制箱梁制作速度，缩短桥梁建设周期。
Prefabricated U-shaped steel-concrete combined box girder structure and construction method
The invention discloses a prefabricated U-shaped steel-concrete combined box girder structure and a construction method, and belongs to the technical field of bridges, the prefabricated U-shaped steel-concrete combined box girder structure comprises a plurality of prefabricated lightweight concrete slabs and arc-shaped steel box girders, the prefabricated lightweight concrete slabs are spliced together to form a bridge deck slab, steel bars are reserved at the joints of the prefabricated lightweight concrete slabs, and the arc-shaped steel box girders are connected with the prefabricated lightweight concrete slabs. Joints between every two adjacent prefabricated lightweight concrete slabs are fixedly connected through cast-in-place high-strength concrete, the arc-shaped steel box girder is an arc-shaped steel plate, steel flange plates are machined at the left end and the right end of the arc-shaped steel box girder in a rolling mode, and the arc-shaped steel box girder is fixedly installed at the bottom of the bridge deck slab through the steel flange plates. The research and development aims at solving the problems that the construction cost of a prefabricated assembly type concrete beam is too high, prefabricated parts are too heavy, studs are arranged too densely, consequently, group nails are reduced, and welding seams of a prefabricated steel-concrete composite beam are too many, the prefabricated arc-shaped steel box beam is formed in a steel mill in a rolling mode, the construction cost of a prefabricated assembly type bridge is reduced, and the manufacturing speed of the prefabricated box beam is increased; the bridge construction period is shortened.
一种预制装配式U形钢‑混组合箱梁结构及施工方法，属于桥梁技术领域，包括预制轻质混凝土板和弧形钢箱梁，所述预制轻质混凝土板为多块，共同拼接成桥面板，预制轻质混凝土板的连接处预留钢筋，每相邻两个预制轻质混凝土板之间接缝处通过现浇高强混凝土固定连接，弧形钢箱梁为弧形钢板，弧形钢箱梁左右两端通过辊压加工有钢翼缘板，弧形钢箱梁通过钢翼缘板固定安装于桥面板底部，本发明研发目的是为了解决预制装配式混凝土梁建设成本过高、预制构件过重、栓钉布置过密导致群钉折减以及预制钢‑混组合梁焊缝过多的问题，预制弧形钢箱梁在钢厂辊压成型，降低预制装配式桥梁建设成本，加快预制箱梁制作速度，缩短桥梁建设周期。
Prefabricated U-shaped steel-concrete combined box girder structure and construction method
一种预制装配式U形钢-混组合箱梁结构及施工方法
WANG JIANJUN (Autor:in) / PAN ZHU (Autor:in) / YANG DAWEI (Autor:in) / JANG WOOK-IL (Autor:in)
15.12.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
E01D
BRIDGES
,
Brücken
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