Detachable formwork-removal-free steel bar truss floor support plate

Abstract

The utility model relates to a floor support plate, belongs to the technical field of building engineering construction, and particularly relates to a detachable formwork-removal-free steel bar truss floor support plate which comprises a truss main body and a bottom support plate, a connecting piece is arranged at the bottom end of the truss main body, and the lower surface of the connecting piece is fixed with the bottom support plate through spray nails. The truss body comprises three cylinders arranged in a triangular shape, buckling holes matched with the cylinders are formed in the connecting pieces in a penetrating mode, and the truss body is connected with the connecting pieces through the buckling holes. The effects of being convenient to transport and easy to assemble on site can be achieved, the steel bars are detachable, formwork erecting is avoided, and the application range is wider; the problems that an existing fabricated concrete composite floor slab is difficult to transport and low in transportation efficiency due to the manufacturing process are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of building engineering construction, in particular to a detachable formwork-free steel bar truss floor deck. Background Art

[0002] With the industrialization of the construction industry, prefabricated buildings have gradually been promoted, and prefabricated concrete composite floors have developed rapidly and have been widely used in construction.

[0003] However, in the prior art, the steel trusses of the assembled composite floor slabs are generally cast into one piece with concrete during the production process, and are large in size and weight, which makes it troublesome to transport the components. In addition, the excessively large size will also lead to a low single transportation volume and low transportation efficiency. The existing concrete structure is also easily damaged during transportation. Therefore, a detachable and formwork-free steel truss floor deck is proposed to solve the above problems. Utility Model Content

[0004] In order to solve the above technical problems, the utility model proposes a detachable formwork-free steel truss floor deck, which can achieve the effects of convenient transportation and simple on-site assembly, and the steel bars are detachable and formwork-free, and the scope of application is wider.

[0005] The technical solution to achieve the purpose of the utility model is: a detachable, formwork-free steel truss floor deck, comprising a truss body and a bottom deck, a connecting piece is provided at the bottom end of the truss body, the lower surface of the connecting piece is fixed to the bottom deck by spray nails, the truss body comprises three cylinders arranged in a triangle, the connecting piece is penetrated by buckle holes matching the cylinders, and the truss body is connected to the connecting piece through the buckle holes.

[0006] In some embodiments, a plurality of reinforcing members are disposed between the middle cylinder and the cylinders on both sides. The reinforcing members are triangular in shape and are equidistantly distributed along the direction of the cylinder.

[0007] In some embodiments, each of the connecting members is disposed between two adjacent reinforcing members, the bottom of the connecting member is hollowed out, and the connecting member is provided with holes adapted to the spray nails.

[0008] In some embodiments, the connecting piece is U-shaped as a whole, the button holes are arranged on both sides and penetrate through, the button holes are horizontally U-shaped, and one of the button holes is open at the top.

[0009] Compared with the prior art, the utility model has the following significant advantages:

[0010] The utility model fixes the truss body and the bottom supporting plate with connecting pieces, and the connecting pieces can be fixed by an air gun top spraying fixing method, so as to achieve the assembly effect both in the factory and on site. The floor supporting fiberboard is processed in the factory, and the surface is flat, which improves the construction quality. The floor slab plays a supporting role, and no formwork is required for construction, which reduces pollution to the environment. The steel truss can be adjusted and disassembled in the connecting piece to eliminate construction errors. The hollow design at the bottom of the connecting piece increases the bonding area between the concrete and the floor slab and the steel bar, and improves the quality of the project. It achieves the positive effects that are beneficial to the construction process, such as convenient transportation, on-site assembly, detachable steel bars, no formwork required, and a wide range of applications.

[0011] The invention solves the problem that the existing assembled concrete composite floor slab is difficult to transport and has low transportation efficiency due to the manufacturing process. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The utility model is further explained below in conjunction with the accompanying drawings and embodiments:

[0013] Figure 1 It is a schematic diagram of the main structure provided in one embodiment of the utility model;

[0014] Figure 2 It is a schematic diagram of a multi-stage explosion structure provided in one embodiment of the utility model;

[0015] Figure 3 It is a schematic diagram of the structure of a connecting piece provided in one embodiment of the utility model.

[0016] Description of reference numerals:

[0017] 1. Truss body; 2. Bottom support plate; 3. Connectors; 4. Spray nails; 5. Cylinders; 6. Button holes; 7. Reinforcement parts. DETAILED DESCRIPTION

[0018] The utility model is described in detail below, and the technical solutions in the embodiments of the utility model are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] The utility model provides a detachable steel bar truss floor decking plate that does not require demolding through improvement. The technical solution of the utility model is:

[0020] like Figure 1As shown, a detachable formwork-free steel truss floor decking plate comprises a truss body 1 and a bottom decking plate 2. A connecting piece 3 is provided at the bottom end of the truss body 1, and the truss body 1 and the bottom decking plate 2 are connected by the connecting piece 3. The lower surface of the connecting piece 3 and the bottom decking plate 2 are fixed by spray nails 4. After the truss body 1 and the bottom decking plate 2 and the connecting piece 3 are connected to each other, the spray nails 4 can be directly nailed in. The truss body 1 comprises three circular columns 5 arranged in a triangular shape, and the triangular arrangement has higher stability. The connecting piece 3 is penetrated with buckle holes 6 adapted to the circular columns 5. The buckle holes 6 are adapted to the circular columns 5 at both sides and are distributed in corresponding positions. The truss body 1 is connected to the connecting piece 3 through the buckle holes 6.

[0021] like Figure 2 and Figure 3 As shown, in one embodiment, a plurality of reinforcing members 7 are provided between the middle cylinder 5 and the two side cylinders 5. The reinforcing members 7 are triangular in shape. The two ends of the reinforcing members 7 connect the middle cylinder 5 and the two side cylinders 5 by welding. The reinforcing members 7 are equidistantly distributed along the direction of the cylinders 5. The triangular structure of the reinforcing members 7 can divide the space of the two side cylinders 5 into a plurality of triangles, further enhancing the stability of the structure.

[0022] Each connecting member 3 is arranged between two adjacent reinforcing members 7. A plurality of connecting members 3 are used together to ensure the stability of the connection. The bottom of the connecting member 3 is hollowed out. The hollow bottom design can increase the bonding area between the concrete and the floor slab and the steel bars, and improve the quality of the project. The connecting member 3 is provided with holes adapted to the spray nails 4.

[0023] The connecting member 3 is U-shaped as a whole. The connecting member 3 is composed of two side panels and a bottom plate. The button holes 6 are arranged on the two side panels. The button holes 6 are arranged on both sides and pass through. The button holes 6 are horizontally U-shaped and have a certain margin. One of the button holes 6 is open at the top. The cylinders 5 on both sides can be inserted into the U-shaped button holes 6 to form a buckling structure with the connecting member 3 for a firm connection.

[0024] The specific working method is: when the detachable formwork-free steel truss floor decking is used, first install the support frame, support the bottom decking 2, draw lines on the bottom decking 2, draw the installation position of the truss body 1 according to the requirements, and then use spray nails 4 to fix the connecting parts 3 one by one on the bottom decking 2 according to the position of the truss body 1, and finally install the truss body 1 and the connecting parts 3 to complete the installation of the floor decking. After the concrete pouring is completed and the strength reaches the design requirements, the support can be removed.

[0025] The technical means disclosed in the utility model are not limited to the technical means disclosed in the above technical means, but also include technical solutions composed of equivalent replacement of the above technical features. Matters not covered in the utility model belong to the common knowledge of those skilled in the art.

Claims

1. A detachable formwork-free steel truss floor deck, comprising a truss body (1) and a bottom deck (2), characterized in that: A connecting piece (3) is provided at the bottom end of the truss body (1), and the lower surface of the connecting piece (3) is fixed to the bottom support plate (2) by spray nails (4). The truss body (1) includes three circular columns (5) arranged in a triangular shape, and the connecting piece (3) is penetrated by buckle holes (6) adapted to the circular columns (5), and the truss body (1) is connected to the connecting piece (3) via the buckle holes (6).

2. The detachable formwork-free steel truss floor deck according to claim 1 is characterized in that: A plurality of reinforcing members (7) are arranged between the central cylinder (5) and the cylinders (5) on both sides. The reinforcing members (7) are triangular in shape and are evenly distributed along the direction of the cylinder (5).

3. The detachable formwork-free steel truss floor deck according to claim 1 is characterized in that: Each of the connecting members (3) is arranged between two adjacent reinforcing members (7), the bottom of the connecting member (3) is hollowed out, and a hole matching the spray nail (4) is arranged on the connecting member (3).

4. The detachable formwork-free steel truss floor deck according to claim 1 is characterized in that: The connecting piece (3) is U-shaped as a whole, the button holes (6) are arranged on both sides and penetrate through, the button holes (6) are in a horizontal U-shape, and one of the button holes (6) is open at the top.

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