Fabricated stressed island reinforced concrete cavity floor system

Abstract

The invention provides a fabricated stressed island reinforced concrete cavity floor system. The fabricated stressed island reinforced concrete cavity floor system comprises a cast-in-situ column, a main beam, prefabricated cavity components for the stressed island reinforced concrete cavity floor system, a cast-in-situ reinforced concrete stressed island and a cast-in-situ reinforced concrete floor system upper flange plate. The cavity components for the stressed island reinforced concrete cavity floor system are prefabricated in a factory firstly; four column grid corners are formed by longitudinal and transverse main beam steel bar cross points on column steel bars, and non-concrete corners of the four cavity components form a cavity floor system stressed island space; and constructional steel bars are laid on the upper surfaces of the main beam steel bars and the upper surfaces of the cavity components for the stressed island reinforced concrete cavity floor system, steel bars are constructed and assembled in the cavity floor system stressed island space formed by the non-concrete corner at the same time, concrete is poured, and vibrating, curing and framework removal are conducted, so that the stressed island reinforced concrete cavity floor system is formed.

Description

Technical field [0001] The invention relates to a prefabricated building system technology, in particular to a reinforced concrete cavity floor with a force island assembly. Background technique [0002] In the process of housing construction in the country, the floor slab adopts hollow prefabricated slab structure, large slab structure, cast-in-place concrete structure, cast-in-place concrete hollow floor structure, cast-in-place frame shear wall structure, etc. With the housing industrialization process, steel —-Mixed structure and steel-mixed cavity floor structure system has been rapidly developed, the new upsurge of prefabricated construction and the future. [0003] For example, the ZL98231113.3 concrete thin-walled cylindrical member declared by the applicant is made into a sealed cylindrical filling body, which provides a tubular hollow filling body for the realization of cast-in-situ hollow floor coverings, which solves the problem of non-extraction of the cast-in-situ cav...

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Problems solved by technology

[0007] The purpose of the present invention is to promote the process of prefabricated buildings and provide technical support for the implementation of prefabricated buildings; to improve the existing frame shear wall structure system and frame core tube structure system by using a reinforced concrete cavity floor with prefabricated island ; Make full use of the advantages of factory industrialization to produce prefabricated assembly cavity components to solve the problems of construction, environmental protection, weight, cost, and work efficiency in the existing system; the overall force of the building structure is solved by pouring reinforced concrete on site. Industrialized production of cavity prefabricated components and on-site pouring of reinforced concrete are organically combined to optimize the existing frame shear wall structure system technology, transform and upgrade the existing prefabricated frame shear wall structure system; solve the existing structure The system has poor controllability of overall on-site pouring, strong technical implementation, environmental pollution caused by on-site construction, heavy quality, high construction cost, slow progress of the project, and the exemption of a large number of building formwork and steel supports, resulting in long formwork time and affecting the construction speed; Beam The shear force area of ​​the column joints is small, which is likely to cause safety hazards; especially when prefabricating the prefabricated cavity floor, there is a corner in the rib beam reinforcement that is not poured during prefabrication. The cavity of the force island is a kind of reinforced concrete cavity floor of the force island required by pouring concrete into the steel strip of the main beam, the upper flange plate, and the cavity of the force island, and it is an important part of the prefabricated building.

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