Floor slab with arched prestressed reinforcements

Abstract

The utility model discloses a floor slab with arched prestressed reinforcements. The floor slab comprises an upper floor slab, a lower floor slab and a reinforcing member mounted on the lower floor slab, a cavity is formed between the upper floor slab and the lower floor slab; a mounting groove is reserved in the end face of the lower floor slab; the reinforcing piece is transversely arranged on the mounting groove, so that the reinforcing piece is positioned between the upper floor slab and the lower floor slab; the reinforcing steel bars are arched in advance to form a certain degree of bending, and the arched reinforcing steel bars can radiate more concrete after the floor part is cut off, tensioned or holed due to the fact that the concrete is cut off, tensioned or holed, so that the overall structure of the floor is still kept stable.

Description

Technical Field

[0001] The utility model discloses a floor slab with arched prestressed steel bars, belonging to the field of building floor slabs. Background Art

[0002] Generally, when opening holes in the floor slab for renovation and upgrading, it is necessary to cut, tension or open holes in some of the unbonded prestressed materials, which will inevitably affect the original stress conditions and force transmission paths of the floor slab, and there is a risk of damage to the surrounding floor slab structure. In conventional construction, a large number of temporary openings are opened, which has an adverse effect on the stability of the structural beams and slabs. Utility Model Content

[0003] In view of the deficiencies in the prior art, the utility model aims to provide a floor slab with arched prestressed steel bars to solve the problem.

[0004] In order to achieve the above-mentioned purpose, the utility model is realized by the following technical scheme: a floor slab with arched prestressed steel bars, comprising an upper floor slab, a lower floor slab, and a reinforcing member installed on the lower floor slab; a cavity is provided between the upper floor slab and the lower floor slab; an installation groove is reserved on the end surface of the lower floor slab; the reinforcing member is horizontally placed on the installation groove so that the reinforcing member is located between the upper floor slab and the lower floor slab;

[0005] The reinforcement member has holes for the reinforcement to pass through, and the holes are provided in a plurality, and every two holes form a group, and the holes in the same group are spaced close to each other;

[0006] A clamp is provided in the cavity, and the clamp is arranged on two steel bars in each group so that the two steel bars are brought closer to each other to bend.

[0007] Preferably, a base protrudes from the reinforcement member, and the hole is located on the base.

[0008] Preferably, the mounting groove is placed in the middle of the lower floor slab.

[0009] Preferably, the two adjacent floor slabs are fixed to each other via a connecting piece.

[0010] Preferably, each side of the connecting member has an extension end, and the extension end extends into the cavity; and the extension end is fixed to the upper floor plate and the lower floor plate by bolts.

[0011] Preferably, the hole spacing between holes in the same group is at least greater than twice the diameter of the steel bar.

[0012] Beneficial Effects

[0013] The utility model pre-arches the steel bars to form a certain degree of curvature. After the floor slab is partially cut, stretched or opened due to concrete, the arched steel bars can radiate to more concrete, so that the overall structure of the floor slab remains stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0015] Figure 1 It is a side view structural schematic diagram of a floor slab with arched prestressed steel bars of the utility model;

[0016] Figure 2 This is a schematic diagram of the top view of the lower floor of the utility model;

[0017] Figure 3 For this utility model Figure 2 Schematic diagram of the working structure. DETAILED DESCRIPTION

[0018] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0019] See also Figure 1-Figure 3 The utility model provides a technical solution of a floor slab with arched prestressed steel bars: comprising an upper floor slab 1, a lower floor slab 2, and a reinforcing member 3 installed on the lower floor slab 2; a cavity A is provided between the upper floor slab 1 and the lower floor slab 2; an installation groove 21 is reserved on the end surface S of the lower floor slab 2; the reinforcing member 3 is horizontally placed on the installation groove 21, so that the reinforcing member 3 is located between the upper floor slab 1 and the lower floor slab 2; on the one hand, the upper floor slab 1 is supported by the reinforcing member 3, so that a certain gap is provided between the upper floor slab 1 and the lower floor slab 2 to form the cavity A.

[0020] The reinforcement 3 has a hole B for the steel bar C to pass through, and the hole B is provided in a plurality. A base 31 protrudes from the reinforcement 3, and the hole B is located on the base 31; on the other hand, the reinforcement 3 supports the upper floor 1 through the base 31, and the steel bar C can pass through the base 31. Preferably, every two holes B will form a group, and the spacing between the holes B in the same group is close to each other; this is convenient for the subsequent bending of two steel bars C as a unit. Further, the base 31 and the reinforcement 3 are fixed, and the base 31 is provided in a plurality, and each base 31 is provided with only two holes B. There is a certain gap between the bases 31, so that when concrete is injected later, the concrete can flow through the gap between the two bases 31, thereby filling the entire cavity A.

[0021] In order to bend a unit of steel bars C (a unit is 2 steel bars C). In one implementation, the cavity A has a clamp 5, and the clamp 5 is set on each group of 2 steel bars C, so that the 2 steel bars C are close to each other and bend. The existing conventional clamp 5 acts on the 2 steel bars C, so that the 2 steel bars C are close to each other, and because the 2 steel bars C are limited by the installed base 31, the steel bars C are bent to form an arc. Preferably, clamps 5 are installed at both ends of the 2 steel bars C, so that the 2 steel bars C are pre-arched under the action of the clamp 5. Therefore, after a part of the floor slab suffers a certain degree of damage, the prestressed steel bars C have the characteristics of small deflection after force and good comfort.

[0022] Furthermore, to facilitate the bending of the two steel bars C, the spacing between the holes B in the same group is at least greater than twice the diameter of the steel bars C; preferably, the spacing between the two holes B in the same group is 2 to 3 times the diameter of the steel bars C, so as to avoid the spacing between the two steel bars C being too small, resulting in a smaller space for the steel bars C to bend.

[0023] Preferably, the installation groove 21 is placed in the middle of the lower floor slab 2, so that the reinforcement member 3 is also placed in the middle of the floor slab, which can make the bending amplitude of the upper and lower ends of the steel bar C more symmetrical.

[0024] The connection between two floor slabs is achieved through a connector 4. The connector 4 is provided between two adjacent floor slabs. Each side of the connector 4 has an extension end 41, and the extension end 41 extends into the cavity A. The extension end 41 is in the shape of a long strip, and the thickness of the extension end 41 is equal to the height of the base 31, so that after the extension end 41 is inserted, the upper floor 1 or the lower floor 2 will not be tilted, so that the upper floor 1 and the lower floor 2 can be arranged in parallel. And the extension end 41 can close the side of the cavity A to prevent the concrete from flowing out from the side when the subsequent concrete is poured. Further, the extension end 41 is fixed to the upper floor 1 and the lower floor 2 respectively by bolts 41; specifically, the bolts 41 pass through the upper floor 1 until they are threadedly connected to the extension end 41, so as to achieve the fixation of the extension end 41 to the upper floor 1; similarly, the bolts 41 pass through the lower floor 2 until they are threadedly connected to the extension end 41.

[0025] Working principle: install the reinforcement 3 in the installation groove 21, then insert the steel bar C into each hole B, put the clamp 5 on the steel bar C, and tighten the clamp 5 to bend the steel bar C. Then install the connector 4 on one side of the lower floor 2, so that the extension end 41 falls on the lower floor 2, and then cover the upper floor 1 on the lower floor 2, and the upper floor 1 is supported by the base 31 and the extension end 41; finally, use the bolt 41 to fix the upper floor 1, the lower floor 2, and the connector 4; thus, the assembly of the floor is completed.

[0026] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the attached claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0027] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A floor slab with arched prestressed steel bars, characterized in that: It comprises an upper floor plate, a lower floor plate, and a reinforcing member installed on the lower floor plate; a cavity is provided between the upper floor plate and the lower floor plate; a mounting groove is reserved at the end surface of the lower floor plate; the reinforcing member is horizontally placed on the mounting groove so that the reinforcing member is located between the upper floor plate and the lower floor plate; The reinforcement member has holes for the reinforcement to pass through, and the holes are provided in a plurality, and every two holes form a group, and the holes in the same group are spaced close to each other; A clamp is provided in the cavity, and the clamp is arranged on two steel bars in each group so that the two steel bars are brought closer to each other to bend.

2. A floor slab with arched prestressed steel bars according to claim 1, characterized in that: A base protrudes from the reinforcement member, and the hole is located on the base.

3. A floor slab with arched prestressed steel bars according to claim 1, characterized in that: The installation groove is placed in the middle of the lower floor slab.

4. A floor slab with arched prestressed steel bars according to claim 1, characterized in that: The two adjacent floor slabs are fixed to each other via a connecting piece.

5. A floor slab with arched prestressed steel bars according to claim 4, characterized in that: The connecting member has an extension end on each side, and the extension end extends into the cavity; and the extension end is fixed to the upper floor plate and the lower floor plate by bolts.

6. A floor slab with arched prestressed steel bars according to claim 1, characterized in that: The spacing between holes in the same group should be at least twice the diameter of the steel bar.

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