U-shaped precast concrete shell with inner ribs and manufacture method thereof

Abstract

The invention relates to a U-shaped precast concrete shell with inner ribs, which is mainly used for manufacturing a reinforced concrete beam. A hoping and a protective layer of the reinforced concrete beam are manufactured into a precast U-shaped shell which is not only used as a construction plank of the reinforced concrete beam, but also used as part of the structure to participate the joint work so as to be beneficial to saving a great amount of construction templates and workload thereof, improving the construction efficiency, lightening the labor force, realizing the cross operation, decreasing the construction cost, ensuring the building quality, saving resources and energy sources, protecting the environment and promoting the industrialized building development. The manufacture method of the U-shaped precast concrete shell adopts a rapid molding method, not only has simple manufacture and thin wall, but also can ensure the precast shell can be reliably bond and jointly work with post-cast core concrete by the inner ribs of the shell. In addition, the manufacture method of the U-shaped precast concrete shell can satisfy the thin-wall requirements and ensures that the protective layer thickness of the reinforced concrete beam main rib is the protective layer thickness of standard specifications.

Description

technical field [0001] The present invention relates to a U-shaped precast concrete shell with inner ribs and a manufacturing method thereof. The U-shaped shell can be used to make an RC beam (also called a new type of assembled RC beam). Background technique [0002] At present, reinforced concrete (RC) beams and structures generally adopt the traditional integral cast-in-place construction method. This construction method constructs reinforced concrete buildings by supporting formwork, configuring and tying steel bars, pouring concrete, curing, and removing formwork. This construction method can effectively guarantee RC structures and components have superior structural performance and have been accepted by engineers. However, when using traditional construction methods, a large amount of concrete is poured on site, which not only has large on-site workload, long construction period, high labor intensity of workers, It has defects such as large environmental impact (such a...

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Problems solved by technology

[0002] At present, reinforced concrete (RC) beams and structures generally adopt the traditional overall cast-in-place construction method. This construction method constructs reinforced concrete buildings by supporting formwork, configuring and binding steel bars, pouring concrete, curing, and removing formwork. This construction method can effectively guarantee RC structures and components have superior structural properties and have been accepted by engineers. However, when using traditional construction methods, a large amount of concrete is poured on site, which not only has a large amount of on-site work, a long construction period, and high labor intensity for workers. Defects such as large environmental impact (such as noise, dust, water pollution, a lot of construction waste, and the quality is greatly affected by the environment), and it is difficult to guarantee the quality of the project

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