Hollow member for concrete

Abstract

Disclosed is a hollow component for concrete, which comprises a hollow shuttering (1), characterized in that at least two hollow shuttering (1) are alternately arranged, the opposite faces of the hollow shuttering (1) form a on-site casting concrete inner rib die cavity (2), at least one tension brace (3) piece is arranged in the inner rib die cavity (2) for alternately integrating opposite or adjacent faces of the hollow shuttering (1), and at least one protruding boss module (5) is arranged in the bottom surface (4) of the hollow shuttering (1). The on-site casting concrete rib forms an inversed T shape rib, while the hollow shuttering forms a hollow shuttering assembly when the hollow component is applied to the on-site casting concrete floor, as a result, the construction efficiency is greatly improved and the construction quality is guaranteed, furthermore, the hollow component has the characters of simple structure, high strength, good distortion and vibration resistance, etc. The invention is suitable for on-site casting hollow floor, roof, soleplate, wall and empty bridge with on-site casting reinforced concrete or prestressed reinforced concrete, especially for hollow mushroom floor.

Description

(1) Technical field [0001] The invention relates to an empty web member for concrete. (2) Background technology [0002] At present, the cast-in-place concrete hollow floor is a widely used floor structure. The light permanent tire mold filled in it has various hollow tubes and boxes, and the boxes are hollow or solid. For example, the applicant applied for a patent number ZL99249798.1 on November 29, 1999, a utility model patent named "fiber-reinforced thin-walled member for reinforced concrete filling", which discloses a thin-walled formwork member including an upper plate, The surrounding side walls, the lower bottom, the upper board, the surrounding side walls, and the lower bottom enclose a polyhedral cavity. Another example is the patent number ZL00203695.9 filed by Liang Jun of Shijiazhuang City, Hebei Province on February 23, 2000, named "Combined Concrete Concealed Rib Floor Cover" utility model patent. The description discloses a formwork member. It can be solid or holl...

AI Technical Summary

Problems solved by technology

In this way, since there is a boss module protruding from the bottom surface on the bottom surface of the hollow formwork, after the hollow member is applied to the cast-in-place concrete floor, the cast-in-place concrete rib forms an inverted T-shaped rib, and its cross-sectional shape changes from a rectangle to an inverted T-shaped rib. T-shaped, so the mechanical properties of the floor are greatly improved, which can reduce the cross-sectional size of the dense rib, reduce the amount of steel and concrete, and reduce the cost of the floor. The spacer braces are connected into one body to form hollow formwork components. The hollow formwork is arranged from a single layout to a group layout. It is very convenient to locate each other, and it is not easy to cause misalignment and affect the construction quality of the floor. At the same time, the construction efficiency is also greatly improved. The overall quality of the cast-in-place concrete floor is guaranteed, the requirements of the mechanical properties of the floor are met, and the construction cost is reduced, thereby better solving the problems existing in the prior art and achieving the purpose of the present invention. In addition, the hollow member It also has the characteristics of simple structure, high strength, excellent deformation resistance, vibration resistance, easy manufacture, and low cost. It is suitable for hollow floors, roofs, foundation floors, and walls of various cast-in-place reinforced concrete or prestressed reinforced concrete. It can be used with hollow bridges, especially suitable for hollow beamless floors.

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