A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The invention belongs to the technical field of assembly type bridge construction, and discloses a fully-assembled steel-concrete composite bridge with a replaceable key tooth cementation seam bridge deck slab and a construction method, and the bridge comprises a prefabricated I-shaped steel beam and a plurality of prefabricated concrete slabs; every two adjacent prefabricated concrete planks are meshed and matched through the grooves and the key teeth to form a mortise and tenon structure, the cementing layers are arranged between the grooves and the key teeth, and the prefabricated concrete planks and the prefabricated I-shaped steel beams are fixed into a whole through bolts. The construction method sequentially comprises the steps that the I-shaped steel beams are erected on the bridge piers, all the bridge piers located in the middle are jacked through the jacking mechanism, balance weight is carried out in the sagging moment section, the concrete prefabricated sections are installed in the hogging moment section, full bridge assembling is carried out, and the concrete prefabricated sections are installed in the sagging moment section. Cast-in-place concrete and internal prestressing tendon construction of an upper structure are completely omitted, full-assembly construction of the steel-concrete composite bridge is achieved, the construction period is remarkably shortened, and the later maintenance cost is reduced.
本发明属于装配式桥梁施工技术领域，公开了全装配可更换键齿胶结缝桥面板钢混组合桥梁及施工方法，桥梁包括预制工字钢梁和多块预制混凝土板；相邻两预制混凝土板通过凹槽和键齿相互咬合匹配形成卯榫结构，在凹槽与键齿间设置有胶结层，通过螺栓将预制混凝土板与预制工字钢梁固定为一体。施工方法依次包括将工字钢梁架设在桥墩上、将位于中间位置的所有桥墩采用顶升机构进行顶升、在正弯矩区段进行配重、在负弯矩区段安装混凝土预制节段、全桥装配和在正弯矩区段安装混凝土预制节段。本发明完全免除了上部结构的现浇混凝土和体内预应力束施工，实现了钢混组合桥梁的全装配化施工，显著缩短了施工工期，降低了后期维护成本。
The invention belongs to the technical field of assembly type bridge construction, and discloses a fully-assembled steel-concrete composite bridge with a replaceable key tooth cementation seam bridge deck slab and a construction method, and the bridge comprises a prefabricated I-shaped steel beam and a plurality of prefabricated concrete slabs; every two adjacent prefabricated concrete planks are meshed and matched through the grooves and the key teeth to form a mortise and tenon structure, the cementing layers are arranged between the grooves and the key teeth, and the prefabricated concrete planks and the prefabricated I-shaped steel beams are fixed into a whole through bolts. The construction method sequentially comprises the steps that the I-shaped steel beams are erected on the bridge piers, all the bridge piers located in the middle are jacked through the jacking mechanism, balance weight is carried out in the sagging moment section, the concrete prefabricated sections are installed in the hogging moment section, full bridge assembling is carried out, and the concrete prefabricated sections are installed in the sagging moment section. Cast-in-place concrete and internal prestressing tendon construction of an upper structure are completely omitted, full-assembly construction of the steel-concrete composite bridge is achieved, the construction period is remarkably shortened, and the later maintenance cost is reduced.
本发明属于装配式桥梁施工技术领域，公开了全装配可更换键齿胶结缝桥面板钢混组合桥梁及施工方法，桥梁包括预制工字钢梁和多块预制混凝土板；相邻两预制混凝土板通过凹槽和键齿相互咬合匹配形成卯榫结构，在凹槽与键齿间设置有胶结层，通过螺栓将预制混凝土板与预制工字钢梁固定为一体。施工方法依次包括将工字钢梁架设在桥墩上、将位于中间位置的所有桥墩采用顶升机构进行顶升、在正弯矩区段进行配重、在负弯矩区段安装混凝土预制节段、全桥装配和在正弯矩区段安装混凝土预制节段。本发明完全免除了上部结构的现浇混凝土和体内预应力束施工，实现了钢混组合桥梁的全装配化施工，显著缩短了施工工期，降低了后期维护成本。
Fully-assembled steel-concrete composite bridge with replaceable key-tooth cementation seam bridge deck slabs and construction method of fully-assembled steel-concrete composite bridge
全装配可更换键齿胶结缝桥面板钢混组合桥梁及施工方法
2023-07-04
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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