Cast-in-place hollow slab

Abstract

The invention discloses a cast-in-place hollow slab. The cast-in-place hollow slab comprises reinforced concrete (1), and hollow carcasses (2), wherein the hollow carcasses (2) are wrapped inside the reinforced concrete (1); arm-braces (3) are arranged on the outer walls (4) at the bottom of the hollow carcasses (2), the hollow carcasses (2) provided with cavities (5) are formed by enclosing the outer walls (4); and cast-in-place reinforced concrete ribs (6) formed by the reinforced concrete (1) are arranged among the hollow carcasses (2). The cast-in-place hollow slab is characterized in that corners formed by intersecting at least two faces of the hollow carcasses (2) are formed by superposing a cementing material (7) of sulphoaluminate cement or aluminoferic cement mortar and grids (8)which are provided with meshes and serve as reinforcing materials; the cementing material (7) pass through the grids (8) so as to form mortar separating layers (9), and is covered on two side faces of the grids so as to form mortar overlaying layers (10); the mortar separating layers (9) are connected with the mortar overlaying layers (10) so as to form transverse H-shaped mortar layers; the arm-braces (3) are fixed or movable; at least two of metal grids, plastic grids, glass fiber grids and vegetable fiber grids are inside the outer walls (4) of the grids (8); and two layers of the mesh grids (8), three layers of the mortar overlaying layers (10) and two layers of the mortar separating layers (9) are arranged at the corners. The cast-in-place hollow slab is suitable for a hollow floor system, a roof, a wall, a foundation slab and a bridge of the cast-in-situ reinforced concrete or the prestressed reinforced concrete, particularly suitable for a hollow cover board without grider.

Description

[0001] This application is a divisional application for the invention patent application with the filing date of February 25, 2006, the application number being 2006100590748, and the title "a kind of cast-in-place concrete hollow slab". (1) Technical field [0002] The invention relates to a cast-in-place concrete hollow slab. (2) Background technology [0003] At present, cast-in-situ concrete hollow floor is a widely used floor structure. The lightweight 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 ut...

AI Technical Summary

Problems solved by technology

But when this kind of hollow carcass is applied to the floor construction, the hollow carcass cannot be accurately arranged in the middle layer of the floor, which affects the construction quality of the floor

For this reason, the patent number is ZL01215092.4, and the utility model patent titled "Building Components" discloses a building component that is a polyhedron, which can be hollow or solid. It is arranged in the middle layer position of the floor, and the outer wall surface of the polyhedron is provided with raised supporting feet, so that when the floor is poured, the supporting feet can ensure that the main cavity of the hollow polyhedron is just in the middle layer of the floor. , so as to better solve the above problems, but this kind of building components is inconvenient to make during production, the production efficiency is low, it is not convenient for assembly line production, the corresponding cost is high, its overall strength and rigidity are poor, and it is prone to damage during transportation and construction The phenomenon

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