Cement floor decking and manufacturing method thereof

Abstract

The present invention proposes a cement floor deck and a manufacturing method thereof, including a bottom template with embedded steel plates; a plurality of groups of longitudinally arranged steel trusses, the steel trusses including a group of upper chord steel bars and two groups of lower chord steel bars; the upper chord steel bars and the lower chord steel bars are welded together through wavy web bars to form a three-dimensional structural truss with a triangular end face; and a steel mesh, the steel trusses are welded to the steel mesh; the steel trusses and the steel mesh are welded to the embedded steel plates as a whole. This device adopts a welding connection process, the bottom template body has an embedded steel plate, the production is more convenient, there is no need to use bolts or screws to cancel the punching production process, the production efficiency is high, and the performance is reliable; the use of steel mesh can solve the problem of difficult on-site reinforcing bar penetration, no need for manual transverse reinforcing bar penetration, and also solves the problem of difficult on-site equipment pipeline construction, reducing labor intensity and reducing construction costs.

Description

Technical Field

[0001] The invention belongs to the technical field of cement floor decking plates, and in particular relates to a cement floor decking plate and a manufacturing method thereof. Background Art

[0002] In the field of construction, cement floor decking structures are increasingly widely used. The cement floor decking disclosed in the prior art still has the following problems during use: 1. The cement floor decking can only be connected by bolts or screws; 2. The bolt or screw connection method requires high production precision, resulting in high cost and low efficiency of production equipment; 3. There are many steel trusses and they are fixed with bolts or screws, which requires opening multiple mounting holes in the base plate and then connecting them with bolts or screws, which is time-consuming and labor-intensive, with low production efficiency and low production capacity; 4. When bolts or screws are used, the problem of metal parts leaking and rusting is common, affecting the quality of the project and living comfort; 5. There are many steel trusses, with high density and large amount of steel used, and A large amount of steel bar threading construction is required on site, which has large errors and poor quality compared to mechanically produced steel mesh. It also makes on-site equipment pipeline construction difficult, increases labor costs, and extends the construction period; 6. The steel trusses of the floor decking plates are involved in the force bearing, and the truss models are numerous and difficult to produce. They are subject to large design restrictions and are difficult to achieve standardized mass production; 7. Currently, most cement floor decking connections use plastic connectors, which have poor fire resistance. Loss of connection at high temperatures will cause the bottom plate to peel off from the main body, which is a huge safety hazard; 8. When producing bolt or screw connections, the production process must adopt the bottom template on top and the truss steel bars on the bottom, which requires the components to be flipped over later. This process equipment is large and clumsy and expensive, with high production costs and low production efficiency. Summary of the invention

[0003] In order to solve the above problems existing in the prior art, a cement floor deck and a manufacturing method thereof are provided.

[0004] The technical solution adopted by the present invention to solve its technical problem is:

[0005] This technical solution proposes a cement floor deck, comprising:

[0006] Bottom formwork with embedded steel plates;

[0007] A plurality of groups of longitudinally arranged steel bar trusses, wherein the steel bar trusses include a group of upper chord steel bars and two groups of lower chord steel bars; the upper chord steel bars and the lower chord steel bars are welded together through corrugated web bars to form a three-dimensional structural truss with a triangular end face;

[0008] and a steel mesh, wherein the steel truss and the steel mesh are welded to each other; and the steel truss and the steel mesh are welded to the embedded steel plate as a whole.

[0009] The bottom template comprises a bottom template body, on which an embedded steel plate is arranged, and the upper surface of the embedded steel plate serves as a welding base surface; the lower surface of the embedded steel plate is fixed inside the bottom template body.

[0010] The upper surface of the embedded steel plate is flush with the upper surface of the bottom template body.

[0011] The material of the bottom template body is cement fiber board or calcium silicate board or explosion-proof board or cement pressure board.

[0012] The embedded steel plates are in the shape of rectangular blocks and are distributed in an array on the bottom template body.

[0013] The embedded steel plates are in the shape of long strips and are arranged at intervals horizontally or vertically along the bottom template body.

[0014] The trough of the web reinforcement is also provided with a bending portion for welding with the embedded steel plate.

[0015] The steel mesh is welded by longitudinal steel bars and transverse steel bars; the ends of the longitudinal steel bars and transverse steel bars extend outside the bottom template body and are arranged in an exposed shape.

[0016] Both ends of the transverse steel bars of the steel mesh are flat-headed or have hooks.

[0017] A method for manufacturing a cement floor deck comprises the following steps:

[0018] Step 1: According to the design requirements, the steel mesh is formed by mesh welding equipment, and the steel truss of appropriate length is selected according to the design size;

[0019] Step 2: Assemble the steel mesh and steel truss on the production line, and then weld them together to form a steel skeleton through professional automatic welding equipment or manual welding.

[0020] Step three: assemble the bottom formwork and the steel frame on the production line, and then use professional automatic welding equipment or manual welding to weld and fix the steel frame to the embedded steel plate to form a finished component.

[0021] Compared with the prior art, the present invention has the following advantages:

[0022] 1. This device adopts welding connection technology, and the bottom template body is partially or entirely embedded with embedded steel plates. The upper surface of the embedded steel plate is used as the welding base surface for welding steel trusses and steel meshes, which makes production more convenient, and no bolts or screws are used for connection. The welding connection equipment is simple. This production process welds the steel trusses and steel meshes as a whole to the bottom template, and the production does not require a flipping process, so the production efficiency is high. The product has good fire resistance and reliable connection performance. The number of trusses is small, the number is reduced by more than 60%, and they do not participate in stress. The model used is single, and the floor deck is equipped with steel meshes. The steel meshes can solve the problem of difficult on-site reinforcement, and there is no need for manual horizontal reinforcement. It also solves the problem of difficult on-site equipment pipeline construction, reduces labor intensity and reduces construction costs. The steel meshes are machined, and the high dimensional accuracy can improve the quality of the project.

[0023] 2. The bottom formwork adopts cement fiber board or calcium silicate board or explosion-proof board or cement pressure board with embedded steel plate. Since cement pressure board or calcium silicate board or explosion-proof board or cement fiber board is environmentally friendly and fire-resistant decorative plate with certain strength and corrosion resistance, it is suitable for all building structures. The lower surface of the embedded steel plate is fixed inside the bottom formwork body, and there is no quality risk of exposed rust of metal parts, and there is no need for bottom plastering and secondary decoration.

[0024] 3. The steel truss has two structural forms, one of which has a continuous wavy web bar; the other structural form has a bent portion at the trough of the web bar, which is used to increase the welding area and facilitate welding with flat embedded steel plates; in addition, the steel mesh has two structural forms, one with a hook and one without a hook (i.e., a flat head). The structural form with a hook can increase the anchoring force and is convenient for construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0026] Figure 1 It is a schematic diagram of the structure of the present invention.

[0027] Figure 2 It is the main view of the connection between the steel truss and the bottom formwork.

[0028] Figure 3 It is a schematic diagram of the structure of one embodiment of a steel mesh in a side view.

[0029] Figure 4 It is a schematic diagram of the structure of another embodiment of a steel mesh in a side view.

[0030] Figure 5 This is the first structural diagram of the embedded steel plate.

[0031] Figure 6 This is the second structural diagram of the embedded steel plate.

[0032] Figure 7 This is the third structural diagram of the embedded steel plate.

[0033] Figure 8 This is a three-dimensional diagram of one of the structures of embedded steel plates.

[0034] Fig. 9 It is a flow chart of the production method of the present invention.

[0035] Description of reference numerals:

[0036] 1 bottom formwork body; 2 embedded steel plate; 3 steel truss; 31 upper chord steel bar; 32 lower chord steel bar; 33 web bar steel bar; 301 bending part; 4 steel mesh; 41 hook. DETAILED DESCRIPTION

[0037] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0038] Embodiment 1

[0039] like Figure 1-4 As shown, this embodiment proposes a cement floor decking slab, including a bottom formwork body 1, the bottom formwork body 1 has an embedded steel plate 2 as a whole or a plurality of embedded steel plates 2 in part, the upper surface of the embedded steel plate 2 is exposed to the outside and is used as a welding base surface; the lower surface of the embedded steel plate 2 is fixed inside the bottom formwork body 1; the upper surface of the embedded steel plate 2 can be higher or lower than the upper surface of the bottom formwork body 1, or can be flush with each other, and a flush method is preferably adopted.

[0040] like Figure 5-8 As shown, the embedded steel plate 2 includes but is not limited to strips, rectangular blocks or whole plate structures; wherein the bottom template body 1 as a whole has the embedded steel plate 2, and the embedded steel plate 2 is a whole plate structure; when the embedded steel plate 2 is a rectangular block, it is distributed in an array on the bottom template body 1; when the embedded steel plate 2 is a long strip, it is arranged at intervals horizontally or vertically along the bottom template body 1.

[0041] The bottom formwork adopts cement fiber board or calcium silicate board or explosion-proof board or cement pressure board with embedded steel plate. Since cement pressure board or calcium silicate board or explosion-proof board or cement fiber board is an environmentally friendly and fire-resistant decorative plate with certain strength and corrosion resistance, it is suitable for all building structures, and the lower surface of the embedded steel plate 2 is fixed inside the bottom formwork body 1, and there is no need for bottom plastering and secondary decoration.

[0042] Embodiment 2

[0043] Continue to refer to the attached Figure 1-8 The present embodiment proposes a cement floor decking plate, which contains the above-mentioned bottom formwork; the bottom formwork is the bottom formwork with embedded steel plates in the first embodiment; it also includes a plurality of groups of longitudinally arranged steel trusses 3, the steel trusses 3 include a group of upper chord steel bars 31 and two groups of lower chord steel bars 32; the upper chord steel bars 31 and the lower chord steel bars 32 are welded together through wavy web bars 33 to form a three-dimensional structural truss with a triangular end face; the steel trusses 3 are connected with steel meshes 4; the steel trusses 3 and the steel meshes 4 are welded to the embedded steel plates 2 as a whole.

[0044] The steel mesh 4 is welded by longitudinal steel bars and transverse steel bars; the ends of the longitudinal steel bars and the transverse steel bars extend outside the bottom formwork body 1 and are arranged in an exposed shape. The two ends of the transverse steel bars of the steel mesh 4 have two structural forms, one is a common flat head shape, and the other is a hook shape, that is, it has a hook 41, which can increase the anchoring force.

[0045] The steel bar truss 3 has two structural forms, one of which has a web bar 33 in a continuous wave shape; the other structural form has a web bar 33 with a bending portion 301 at the trough, and the web bar 33 has a bending portion 301 at the trough for welding with the embedded steel plate 2. The bending portion 301 is used to increase the welding area, which is convenient for welding with the flat embedded steel plate 2.

[0046] like Fig. 9 As shown, the manufacturing method of the above-mentioned cement floor deck comprises the following steps:

[0047] Step 1: According to the design requirements, the steel mesh is formed by mesh welding equipment, and the steel truss of appropriate length is selected according to the design size;

[0048] Step 2: Assemble the steel mesh and steel truss on the production line, and then weld them together to form a steel skeleton through professional automatic welding equipment or manual welding.

[0049] Step three: assemble the bottom formwork and the steel frame on the production line, and then use professional automatic welding equipment or manual welding to weld and fix the steel frame to the embedded steel plate to form a finished component.

[0050] From the above description, it can be seen that the device adopts a welding connection process, and the bottom template body is partially or entirely connected with an embedded steel plate. The upper surface of the embedded steel plate is used as the welding base surface for welding the steel truss and the steel mesh. The production is more convenient, and the connection method of bolts or screws is no longer used to cancel the punching production process. The welding connection equipment is simple. This production process welds the steel truss and the steel mesh as a whole to the bottom template. The production does not require a flip plate process and has high production efficiency; the product has good fire resistance and reliable connection performance; the number of trusses is small, the number is reduced by more than 60%, and they do not participate in the force, the model used is single, and the floor deck is equipped with a steel mesh. The steel mesh can solve the problem of difficulty in on-site reinforcement, and there is no need for manual horizontal reinforcement. It also solves the problem of difficult on-site equipment pipeline construction, reduces labor intensity and reduces construction costs; the steel mesh is machined, and the high dimensional accuracy can improve the quality of the project.

[0051] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A cement floor deck, characterized in that: include: Bottom formwork with embedded steel plates; A plurality of groups of longitudinally arranged steel bar trusses, wherein the steel bar trusses include a group of upper chord steel bars and two groups of lower chord steel bars; the upper chord steel bars and the lower chord steel bars are welded together through corrugated web bars to form a three-dimensional structural truss with a triangular end face; and a steel mesh, wherein the steel truss is welded to the steel mesh; the steel truss and the steel mesh are welded to the embedded steel plate as a whole; the upper surface of the embedded steel plate is flush with the upper surface of the bottom template body; the bottom template includes a bottom template body, on which the embedded steel plate is arranged, and the upper surface of the embedded steel plate serves as a welding base surface; the lower surface of the embedded steel plate is fixed inside the bottom template body; the steel mesh is welded by longitudinal steel bars and transverse steel bars; the ends of the longitudinal steel bars and the transverse steel bars extend outside the bottom template body and are arranged in an exposed shape.

2. A cement floor deck according to claim 1, characterized in that: The material of the bottom template body is cement fiber board or calcium silicate board or explosion-proof board.

3. A cement floor deck according to claim 1, characterized in that: The embedded steel plates are in the shape of rectangular blocks and are distributed in an array on the bottom template body.

4. A cement floor deck according to claim 1, characterized in that: The embedded steel plates are in the shape of long strips and are arranged at intervals horizontally or vertically along the bottom template body.

5. The cement floor decking slab according to claim 1, characterized in that: The trough of the web reinforcement is also provided with a bending portion for welding with the embedded steel plate.

6. The cement floor deck according to claim 1, characterized in that: Both ends of the transverse steel bars of the steel mesh are flat-headed or have hooks.

7. A method for manufacturing a cement floor deck as claimed in any one of claims 1 to 6, characterized in that: The steps include: Step 1: According to the design requirements, the steel mesh is formed by mesh welding equipment, and the steel truss of appropriate length is selected according to the design size; Step 2: Assemble the steel mesh and steel truss on the production line, and then weld them together to form a steel skeleton through professional automatic welding equipment or manual welding. Step three: assemble the bottom formwork and the steel frame on the production line, and then use professional automatic welding equipment or manual welding to weld and fix the steel frame to the embedded steel plate to form a finished component.

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