A formwork-free floor decking plate and its production process

Abstract

The present invention relates to a formwork-free floor deck, which includes a concrete bottom membrane, a plurality of pairs of folding embedded steel plates are arranged on both sides of the concrete bottom membrane, a steel mesh is arranged inside the concrete bottom membrane and below the folding embedded steel plates, the folding embedded steel plates include embedded plates built into the concrete bottom membrane, two folding plates are arranged in the middle of the embedded plates, the folding plates are folded and attached to the upper surface of the concrete bottom membrane, and steel trusses are fixed on both sides of the concrete bottom membrane, and the steel trusses on one side include two lower chord steel bars, an upper chord steel bar is arranged above the lower chord steel bar, and wavy web bars are welded on both sides of the upper chord steel bars, and the lower ends of the web bars are welded on the folding plates. The present invention overcomes the shortcomings of the prior art, pre-embeds steel plates first, thereby facilitating subsequent processing and manufacturing, using environmentally friendly waste materials, saving costs and protecting the environment.

Description

Technical Field

[0001] The invention relates to the technical field of floor decking processing, and in particular to a floor decking free of formwork removal and a production process thereof. Background Art

[0002] As a pillar industry of the national economy, the construction industry plays a vital role in the economic development of our country. The mechanical properties of steel truss floor decking are basically the same as those of traditional cast-in-place floor slabs, and are widely used in the construction of various buildings. Steel truss floor decking is a composite formwork in which steel bars are processed into steel trusses, and the steel trusses are made into one piece with the main body of the floor decking. In the prior art, when steel truss floor decking is made into steel trusses, a part of the steel truss is pre-buried in the main concrete body of the floor decking, which takes up a lot of space during curing and drying, and is easy to detach; in addition, the raw materials used in the existing floor decking are mainly cement. If waste solid materials, waste garbage, etc. can be applied to the production of floor decking, it will be more conducive to environmental protection and cost control. Therefore, the above problems need to be improved urgently. Summary of the invention

[0003] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a formwork-free floor decking and its production process, pre-embed steel plates to facilitate subsequent processing and manufacturing, use environmentally friendly waste materials, save costs and protect the environment.

[0004] In order to solve the above technical problems, the technical solution provided by the present invention is: a formwork-free floor decking, which includes a concrete base membrane, a plurality of pairs of folded embedded steel plate parts are arranged on both sides of the concrete base membrane, a steel mesh is arranged in the concrete base membrane and below the folded embedded steel plate parts, the folded embedded steel plate parts include an embedded plate built into the concrete base membrane, two folded plates are arranged in the middle of the embedded plate, the folded plates are folded and attached to the upper surface of the concrete base membrane, steel trusses are fixed on both sides of the concrete base membrane, the steel truss on one side includes two lower chord steel bars, an upper chord steel bar is arranged above the lower chord steel bar, wavy web steel bars are welded on both sides of the upper chord steel bars, and the lower ends of the web steel bars are welded to the folding plates.

[0005] Furthermore, the same ends of the two lower chord steel bars are welded and fixed via the support horizontal steel bars, and the ends of the upper chord steel bars are welded to the middle of the support horizontal steel bars via the support vertical steel bars.

[0006] Furthermore, the concrete base membrane and the folded embedded steel plate are integrally formed by pressing through a high-pressure mold bin, and a plurality of adjustment notches are provided at the bottom of the upper mold of the high-pressure mold bin, and the adjustment notches are used in combination with the folding plate.

[0007] A production process of a formwork-free floor decking plate includes the following process steps:

[0008] S1. Material: fly ash, stone powder and other waste solid materials are used as the main raw materials, cement is used as the ingredient and water is added to mix, the cement dosage ratio accounts for 20-40%, and this is used as the mixed raw material for the concrete base membrane;

[0009] S2, Shotcrete pressing: pour the mixed raw materials into the lower mold of the high-pressure mold bin as the first layer of shotcrete, then lay the steel mesh on the first layer of shotcrete, and then adjust the position of the folded pre-embedded steel plate in the groove at the bottom of the upper mold of the high-pressure mold bin according to the size of the concrete base membrane, and then pour the second layer of shotcrete, and finally press the concrete base membrane and the folded pre-embedded steel plate into one by 5000 tons of pressure;

[0010] S3, cutting: curing and drying the molded products delivered from the high-pressure mold bin. When the products are cured to the specified strength, the burrs on the edges are cut to obtain the prefabricated floor decking template;

[0011] S4. Welding steel trusses: After the prefabricated floor decking templates are stacked, they are transported to the secondary processing area, and a set of steel trusses are welded to the folded embedded steel plates to produce prefabricated floor decking.

[0012] The present invention has the following advantages: the embedded plate at the bottom of the foldable embedded steel plate part is pressed and built-in, and the upper part is welded to the steel truss, which can be well integrated to avoid the separation of the embedded part from the bottom plate during hoisting and installation, and the foldability makes it easier to be welded with the honing frame for adjusting the angle.

[0013] The adjustable notch of the present invention can be used to design the spacing between steel bar trusses according to different loads, so as to better connect with the foldable embedded steel plate parts.

[0014] Through 5,000-ton pressure pressing, fly ash, stone powder and other waste solid materials, construction waste can be used as the main raw materials, cement is used as the ingredient, and the cement ratio can account for about 20%, thereby digesting a large amount of solid waste materials and reducing costs. The cost is directly reduced by about 50% compared with the previous cost. The high-pressure pressing product has high strength and only takes about four hours to steam. It greatly improves productivity and shortens the steaming cycle of finished products. At the same time, it reduces waste disposal and protects the environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the formwork-free floor decking board in the present invention.

[0016] Figure 2 It is a structural schematic diagram of the prefabricated floor decking template in the present invention.

[0017] Figure 3 It is a schematic diagram of the adjustment notch in the present invention.

[0018] As shown in the figure: 1. Concrete base membrane, 2. Folded embedded steel plate, 3. Embedded plate, 4. Folded plate, 5. Steel truss, 6. Lower chord steel bar, 7. Upper chord steel bar, 8. Web bar steel bar, 9. Support horizontal steel bar, 10. Support vertical steel bar, 11. Adjustment slot, 12. Steel mesh. DETAILED DESCRIPTION

[0019] The present invention is further described in detail below in conjunction with the embodiments.

[0020] In the specific implementation of the present invention, when manufacturing a formwork-free floor decking, it includes a concrete base membrane 1, and a plurality of pairs of folded pre-embedded steel plate members 2 are arranged on both sides of the concrete base membrane 1. A steel mesh 12 is arranged inside the concrete base membrane 1 and below the folded pre-embedded steel plate members 2. The folded pre-embedded steel plate members 2 include embedded plates 3 built into the concrete base membrane 1. During pressing, the embedded plates 3 will be inside the concrete base membrane 1. Two folded plates 4 are arranged in the middle of the embedded plates 3. The folded plates 4 are folded and attached to the upper surface of the concrete base membrane 1. During the pressing process, the folded plates 4 are It will not bend to the horizontal state, and will be flattened when the secondary processing of the welded trusses is required later. Steel trusses 5 are fixed on both sides of the concrete base membrane 1. The steel trusses 5 on one side include two lower chord steel bars 6. An upper chord steel bar 7 is arranged above the lower chord steel bars 6. Wave-shaped web bars 8 are welded on both sides of the upper chord steel bars 7. The lower ends of the web bars 8 are welded to the folding plate 4. The same ends of the two lower chord steel bars 6 are welded and fixed by support horizontal steel bars 9. The ends of the upper chord steel bars 7 are welded to the middle of the support horizontal steel bars 9 through support vertical steel bars 10.

[0021] A production process of a formwork-free floor decking plate includes the following process steps:

[0022] S1. Material: fly ash, stone powder and other waste solid materials are used as the main raw materials, cement is used as the ingredient and water is added to mix, the cement dosage ratio accounts for 20-40%, and this is used as the mixed raw material for the concrete base membrane;

[0023] S2, spraying pressing: pouring the mixed raw materials into the lower mold of the high-pressure mold bin as the first layer of spraying, and then laying the steel mesh on the first layer of spraying, and then adjusting the position of the folded pre-embedded steel plate in the adjusting notch at the bottom of the upper mold of the high-pressure mold bin according to the size of the concrete bottom membrane, the concrete bottom membrane 1 and the folded pre-embedded steel plate 2 are integrally formed after being pressed by the high-pressure mold bin, and a plurality of adjusting notches 11 are provided at the bottom of the upper mold of the high-pressure mold bin, and the adjusting notches 11 and the folding plate 4 are used in combination, and then pouring the second layer of spraying, and finally pressing the concrete bottom membrane and the folded pre-embedded steel plate into one by 5000 tons of pressure;

[0024] S3, cutting: curing and drying the molded products delivered from the high-pressure mold bin. When the products are cured to the specified strength, the burrs on the edges are cut to obtain the prefabricated floor decking template;

[0025] S4. Welding steel trusses: After the prefabricated floor decking templates are stacked, they are transported to the secondary processing area, and a set of steel trusses are welded to the folded embedded steel plates to produce prefabricated floor decking.

[0026] Through 5,000-ton pressure pressing, waste solid materials such as fly ash and stone powder, and construction waste are used in the raw materials and combined with cement to form a concrete base membrane, thereby digesting a large amount of solid waste materials and reducing costs. The high-pressure pressing product has high strength and only takes about four hours to steam, which greatly improves productivity and shortens the steaming cycle of the finished product.

[0027] Although the present invention has been described in detail above with general descriptions and specific embodiments, it is obvious to those skilled in the art that some modifications or improvements may be made thereto based on the present invention. Therefore, these modifications or improvements made without departing from the spirit of the present invention all fall within the scope of protection claimed by the present invention.

Claims

1. A formwork-free floor decking plate, characterized in that: It comprises a concrete base membrane (1), wherein a plurality of pairs of folded embedded steel plate members (2) are arranged on both sides of the concrete base membrane (1), a steel mesh (12) is arranged inside the concrete base membrane (1) and below the folded embedded steel plate members (2), the folded embedded steel plate members (2) comprising an embedded plate (3) built into the concrete base membrane (1), two folded plates (4) being arranged in the middle of the embedded plate (3), the folded plates (4) being folded and attached to the upper surface of the concrete base membrane (1), steel trusses (5) being fixed on both sides of the concrete base membrane (1), the steel trusses (5) on one side comprising two lower chord steel bars (6), an upper chord steel bar (7) being arranged above the lower chord steel bars (6), wave-shaped web steel bars (8) being respectively welded on both sides of the upper chord steel bars (7), the lower ends of the web steel bars (8) being welded to the folded plates (4); The same ends of the two lower chord steel bars (6) are welded and fixed via a support horizontal steel bar (9), and the ends of the upper chord steel bars (7) are welded to the middle of the support horizontal steel bars (9) via a support vertical steel bar (10); The concrete base membrane (1) and the folded embedded steel plate member (2) are integrally formed after being pressed by a high-pressure mold chamber, and the bottom of the upper mold of the high-pressure mold chamber is provided with a plurality of adjustment slots (11), and the adjustment slots (11) and the folded plate (4) are used in conjunction with each other; the embedded plate (3) at the bottom of the folded embedded steel plate member (2) is pressed and built-in, and the upper part is welded to the steel truss (5), so that it can be well integrally formed, and can be folded to facilitate the adjustment of the angle and the welding with the steel truss (5).

2. A production process for the formwork-free floor decking according to claim 1, characterized in that: The process steps include: S1. Fabrication: fly ash, stone powder and other waste solid materials are used as the main raw materials, cement is used as the ingredient and water is added to mix, the cement dosage ratio accounts for 20-40%, and this is used as the mixed raw material for the concrete base membrane; S2, Shotcrete pressing: pour the mixed raw materials into the lower mold of the high-pressure mold bin as the first layer of shotcrete, then lay the steel mesh on the first layer of shotcrete, and then adjust the position of the folded pre-embedded steel plate in the groove at the bottom of the upper mold of the high-pressure mold bin according to the size of the concrete base membrane, and then pour the second layer of shotcrete, and finally press the concrete base membrane and the folded pre-embedded steel plate into one by 5000 tons of pressure; S3, cutting: curing and drying the molded products delivered from the high-pressure mold bin. When the products have reached the required strength, cutting is performed on the edge burrs to obtain the prefabricated floor decking template; S4. Welding steel trusses: After the prefabricated floor decking templates are stacked, they are transported to the secondary processing area, and a set of steel trusses are welded to the folded embedded steel plates to produce prefabricated floor decking.

Images