Fabricated composite floor free of formwork removal

Abstract

An assembly type composite floor free of formwork removal is formed by splicing inorganic composite thin plates into bottom formwork assemblies and compounding angle steel for connecting the bottom formwork assemblies, floor bottom formwork assembly combining seams, main beam steel bars, rib beam steel bars, constructional steel bars, built-in formworks and concrete. The inorganic composite thin plate bottom formwork assembly is a disassembly-free bottom formwork assembly which is permanently used by the fabricated composite floor slab; the inorganic composite thin plate bottom die assembly is a strip-shaped bottom die assembly formed by splicing N inorganic composite thin plates through angle steel for connection; functional fixing pieces are adopted in the angle steel for connection; the built-in die is arranged between two pieces of angle steel for connection of the strip-shaped bottom die assemblies to form a half of the width of the longitudinal rib beam, and the two strip-shaped bottom die assemblies are spliced to form the width of the longitudinal rib beam; the fabricated composite floor constructional steel bars are arranged at the upper end of the built-in mold; and the concrete is directly compounded with the non-dismantling bottom die assembly and the built-in die which are permanently used to form the fabricated composite floor without dismantling the die.

Description

technical field [0001] The invention relates to a prefabricated building system technology, in particular to a prefabricated composite floor slab technology free from form removal. Background technique [0002] At present, the development of the prefabricated reinforced concrete frame structure system is relatively lagging behind. In the prefabricated reinforced concrete structure project, the prefabricated reinforced concrete shear wall structure is mainly used, which is a part or all of the prefabricated load-bearing shear wall components. The external wall panels generally adopt prefabricated sandwich wall panel technology; most of the floor slabs use truss slabs; the large-span factory building project has just started, and the cast-in-situ concrete frame structure is used to laminate the double T floor slab. [0003] The prefabricated reinforced concrete frame structure is the focus and difficulty of the prefabricated building, and there are major problems: ① The beam-c...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to use inorganic composite thin plates to assemble a large-area strip-shaped bottom mold assembly and the built-in mold to form the beam-slab mold required for the floor of a large-span frame structure, and then pour concrete to form a formwork-free Prefabricated composite floor slab; the present invention "adopts rigid-flexible inorganic composite thin plates to form a strip-shaped bottom mold assembly and built-in mold form assembly-type composite floor slab technology" to replace "heavy mass, small area, small span The truss laminated slab technology in the shear wall structure system”; at the same time: the strip-shaped bottom form that does not need to be dismantled eliminates the need for a floor formwork for the cast-in-place hollow floor, and overcomes the need for cast-in-place concrete at the bottom of the cast-in-place hollow floor filling body Problems such as anti-floating, displacement, and cumbersome workmanship caused by the construction of the floor slab; forming a prefabricated composite floor technology without removing formwork, optimizing the existing frame structure technology system, and laying the foundation for the realization of large-span prefabricated buildings without exposed beams ; It not only improves the overall safety of the building, but also solves the existing truss laminated slab floor technology. The truss slabs are superimposed on the upper surface of the beam to form an open beam. The open beam occupies the height between floors, the site construction process is complicated, and the construction cost is high. A series of defects such as slow progress of the project

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