Steel reinforced concrete combined hollow floor and construction method thereof

Abstract

The invention relates to a building hollow floor, in particular to a steel reinforced concrete combined hollow floor and construction method thereof, which aims at overcoming the weaknesses of the prior art and providing a steel reinforced concrete combined hollow floor capable of adequately playing the advantages of the steel beam and the concrete and also solving the weaknesses of the steel beam and the concrete. The invention adopts the technical scheme that: the steel reinforced concrete combined hollow floor comprises a steel beam, an upper layer of post-cast steel reinforced concrete and a lower layer of post-cast steel reinforced concrete, wherein the steel beam comprises a web plate, and the upper long edge and the lower long edge of the web plate are respectively provided with a plurality of wing teeth which are alternatively inclined towards the left side and the right side of the web plate; and the wing teeth of the upper and the lower long edges of the web plate are respectively embedded into the upper and the lower layers of post-cast steel reinforced concrete. The steel reinforced concrete combined hollow floor has beneficial effects that: the weight is reduced, good bearing capacity is kept, the structural performance is better, and the integrity is stronger; the consumption of the steel reinforced bar is less, and the cost is reduced; and the steel beam component is wrapped by the concrete, so the problem that the steel beam component is inflammable and is easy to corrode can be effectively solved.

Description

technical field [0001] The invention relates to a building hollow floor, in particular to a steel-concrete composite hollow floor. Background technique [0002] At present, in the construction industry, there are mainly the following ways to form the floor: 1. On-site pouring. First use steel formwork or wood formwork to form the formwork, and then pour concrete to form. The floor built by this method has good integrity and continuity, convenient construction, and high seismic performance, but the floor is heavy and the space span is small. 2. Assembled floor slab, that is, the floor is built with prefabricated hollow floor slab. The use of prefabricated concrete hollow floor slabs can greatly reduce the weight of the floor. However, the floors built with precast concrete hollow slabs and other assembled floors have poor overall performance, especially cracks are prone to occur along the joints of the hollow slabs. Moreover, the load-bearing capacity and earthquake resis...

AI Technical Summary

Problems solved by technology

The middle beam of the building is made of concrete, which has the disadvantages of large volume, heavy weight, and small space span, and is only suitable for floors with regular shapes on the plane, and its versatility is poor

The application of the T-beam floor partially solves the above technical problems, but the lower end of the T-beam is limited by its structure, and it is difficult to pour concrete due to insufficient occlusal force. It is exposed to the outside and is afraid of fire and corrosion.

[0003] Although some people have proposed the application of steel beams in the floor, the existing technology has not fully integrated the respective advantages of steel beams and concrete, and has not been able to avoid the respective defects of steel beams and concrete: steel beams have high strength, but are not anti-corrosion and fire-resistant. Poor performance; although concrete has poor tensile capacity, it has high compressive strength

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