Construction method of outer wrapped concrete obliquely pulling and buckling and ring and section dividing combination method

Abstract

The invention discloses a construction method of an outer wrapped concrete obliquely pulling and buckling and ring and section dividing combination method. A whole bridge is divided into six rings of an edge box bottom plate, a lower web, an upper web, an edge box top plate, a middle box bottom plate and a middle box top plate; the semiarch rib of each ring is divided into three working surfaces; each working surface comprises three sections; nine pouring sections exist; three sections are poured for each ring in each time; the sections are poured in three times; before pouring outer wrapped concrete, buckling cables and balance cables are arranged in the arch springing regions, and the cable force is tensioned according to the design requirements. By using the construction method, the construction safety risk in the prior art is effectively reduced, the proportioning of concrete with high grade and the template design are facilitated, the operation is simple, the cost is saved, the construction period is short, and the linear shape and the stress of arch rings can be effectively controlled.

Description

technical field [0001] The invention belongs to a building construction method, in particular to a construction method of outsourcing concrete cable-stayed buckle-hanging and sub-ring and segmented combination method, which is suitable for outsourcing concrete operations of reinforced concrete arch bridges with large spans and large height differences. Background technique [0002] At present, the outsourcing concrete of the same type of bridges at home and abroad mostly adopts methods such as cast-in-place with external supports, ring casting, segmental pouring or ring segmental pouring, etc., but the above construction methods have high safety risks, large amount of materials, outsourcing concrete, steel pipes and other methods. Concrete stress in the pipe is not easy to control and other shortcomings. Invention content: [0003] The purpose of the present invention is to overcome the deficiencies in the above-mentioned prior art, and to provide a construction method of ...

AI Technical Summary

Problems solved by technology

[0002] At present, the outsourcing concrete of the same type of bridges at home and abroad mostly adopts methods such as cast-in-place with external supports, ring casting, segmental pouring or ring segmental pouring, etc., but the above construction methods have high safety risks, large amount of materials, outsourcing concrete, steel pipes and other methods. Concrete stress in the pipe is not easy to control, etc.

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