Ventilating plastic box

Abstract

The invention relates to a ventilating plastic box and a manufacturing method thereof, and belongs to the field of common building structures. The plane shape of the plastic box (1) is rectangular, and the ratio of the long edge length to the short edge length is smaller than or equal to two. The plastic box comprises an upper assembly (2) and a lower assembly (3), the upper assembly (2) is composed of a frame plate (4), stiffening ribs (5) and a top cover plate (6), and one or more exhaust holes (7) are formed in the top cover plate; the lower assembly (3) is composed of a frame plate (4), stiffening ribs (5) and a bottom support plate (8), and the bottom support plate (8) is bestrewn with dense vent holes (9). The stiffening ribs are uniformly arranged in the upper assembly and the lower assembly along the inner walls of the frame plates, the inner wall of the top cover plate and the inner wall of the bottom support plate, the upper assembly and the lower assembly are spliced in a vertically aligned mode, and the frame plates are matched. The plastic box is convenient to produce, install and transport and good in mechanical property, and a hollow floor formed by the plastic box is good in reliability, seismic performance and crack resistance.

Description

(1) Technical field [0001] The invention relates to a filling material in a reinforced concrete hollow floor structure, in particular to a breathable plastic box and a manufacturing method thereof, belonging to the field of general building construction. (2) Background technology [0002] In the field of construction, with the increasing number of long-span concrete structures, more and more floor slabs adopt hollow-core floor structure technology. Replacing part of the concrete with lightweight filling materials will basically not affect the mechanical performance of the structure, but it can greatly reduce the self-weight of the structure. [0003] In the early hollow floors, scholars represented by Qiu Zeyou and Wang Benmiao proposed to use high-strength cement to make cement pipes and cement boxes as filling materials, but cement products are self-heavy. Later, I introduced polyphenylene foam materials into the hollow floor, and I successively proposed "a lightweight fo...

AI Technical Summary

Problems solved by technology

[0008] In the existing hollow floor technology, there are problems such as the large buoyancy of the filling material that leads to construction difficulties, or the low hollow rate of the floor, the low stiffness of the filling material, the quality of concrete pouring at the bottom of the slab, and the difficulty in pipeline layout. The purpose of the present invention is to Provide a breathable plastic box

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