Hollow floor system filled with an air-filling bag and construction method thereof

Abstract

The invention relates to a hollow floor system filled with an air-filling bag and a construction method thereof, belonging to the field of the structure of the common building. The hollow floor system consists of the air-filling bag (1), upper steel bars (2), lower steel bars (3), hidden girder steel bars (4) and concrete (5), wherein the air-filling bag (1) is positioned among the upper steel bars (2), the lower steel bars (3) and the hidden girder steel bars (4); a bag wall (8) of the air-filling bag (1) consists of four side walls (9), an upper wall (10) and a lower wall (11); the shapes of at least two side walls (9) adjacent to the hidden girder steel bars (4) in the air-filling bag (1) are planes; the shapes of the upper wall (10) and the lower wall (11) are heaved-outward arc surfaces; and positioning pieces (12) are arranged among the inner sides of the side walls (9) so as to ensure that the two side walls (9) are parallel mutually. The hollow floor system has large span, better reliability, earthquake resistance and crack resistance, and good economy and applicability.

Description

(1) Technical field [0001] The invention relates to a reinforced concrete hollow floor structure, in particular to a hollow floor filled with an air bag and a construction 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. Sometimes in order to reduce the self-weight of the structure or enhance the thermal insulation, heat insulation, sound insulation, and shock absorption effects of concrete, it is necessary to place some lightweight filler materials inside the concrete. 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] From the construction point of view, the construction is most convenient when the cro...

AI Technical Summary

Problems solved by technology

However, the biggest defect of this cross-sectional shape filling material is that it is impossible to ensure that the concrete pouring under the filling material is dense.

Mr. Qiu Zeyou's patented technology "a pneumatic tire mold component for concrete filling" (ZL200710200791.2), "a pneumatic tire mold for concrete filling" (ZL200710200852.5), "a pneumatic tire mold for concrete filling" (ZL200710200795.0) uses two layers of skin to inflate each face of the filling body. For a hexahedron, 12 skins are required, which is a waste of material

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