Form-removal-free steel bar truss floor support plate

Abstract

The utility model discloses a formwork-removal-free steel bar truss floor support plate. The floor support plate comprises a bottom plate, a steel bar truss and a plurality of connecting assemblies. Wherein the bottom plate is a high-strength fiber cement plate; the connecting assembly comprises a cushion block, a steel bearing plate and a plurality of fasteners, the cushion block is arranged at the top of the bottom plate, the steel bearing plate is erected at the top of the cushion block, and the fasteners are used for connecting the steel bearing plate and the bottom plate; the steel bar truss is fixed to the top of the steel bearing plate through welding. The floor support plate structure has the advantages that the steel bar trusses are indirectly fixed to the bottom plate through the connecting assemblies, and the quality defect of a traditional steel plate composite floor is avoided; 2, the high-performance bottom plate made of the high-strength fiber cement plate can be directly used as a base layer of a veneer, so that a construction process of a suspended ceiling is avoided; and 3, the requirement on the thickness of the steel bar protection layer can be effectively met through the cushion blocks. Therefore, compared with the existing floor support plate technology, the formwork-removal-free steel bar truss floor support plate provided by the utility model has obvious technical advantages.

Description

Technical Field

[0001] The utility model relates to the technical field of assembled buildings, in particular to a steel bar truss floor decking plate that does not require formwork removal. Background Art

[0002] Under the premise of promoting green construction and prefabricated construction, reinforced truss floor deck composite floor slabs are widely used in industrial and civil buildings.

[0003] At present, the steel truss floor deck is mainly made of steel truss and corrugated steel plate welded to form a combined floor deck, with steel plate as the bottom formwork. During the construction stage, the combination between the steel truss and the steel plate depends on the welding quality of the web reinforcement and the steel plate. However, in actual projects, it is found that the steel truss floor deck is prone to problems such as welding leakage and de-welding between the steel skeleton and the steel plate, and easy rust on the steel plate surface, which affects the welding quality and safety of the steel truss and the steel plate, and it is difficult to ensure the safe distance of the steel bar protective layer. In addition, on-site formwork and dismantling increase the on-site operation process, high labor costs, and long construction period.

[0004] To this end, the utility model aims to provide a steel truss floor deck that does not require demolding to address the deficiencies of the prior art, so as to solve or alleviate one or more of the above-mentioned problems and ensure safe and reliable use of the building. Utility Model Content

[0005] In order to overcome the technical problems of the prior art described above, the purpose of the utility model is to provide a steel bar truss floor deck that does not require formwork removal.

[0006] The utility model discloses a steel bar truss floor decking plate free of formwork removal, comprising:

[0007] A base plate, wherein the base plate is a high-strength fiber cement board;

[0008] A plurality of connection components, any of which comprises a cushion block, a steel support plate and a plurality of fasteners, wherein the cushion block is arranged on the top of the base plate, the steel support plate is arranged on the top of the cushion block, and the fasteners are used to connect the steel support plate and the base plate;

[0009] A steel truss is fixed to the top of the steel deck by welding.

[0010] As a preferred technical solution, the fastener is a self-tapping screw.

[0011] As a preferred technical solution, the connecting assembly is a symmetrical structure.

[0012] As a preferred technical solution, the cushion block is made of engineering plastics, galvanized steel plates or concrete blocks.

[0013] As a preferred technical solution, the height dimension of the pad block needs to ensure that sufficient steel bar protection layer thickness is left between the steel bar truss and the bottom plate.

[0014] As a preferred technical solution, the steel truss includes an upper chord steel bar, a lower chord steel bar and a web steel bar, the web steel bar integrates the upper chord steel bar and the lower chord steel bar, and the web steel bar is fixed to the top of the steel deck by welding.

[0015] As a preferred technical solution, the floor decking also includes a first distribution steel bar and a second distribution steel bar. The first distribution steel bar is close to the upper chord steel bar and is horizontally arranged perpendicular to the steel truss. The second distribution steel bar is close to the lower chord steel bar and is horizontally arranged perpendicular to the steel truss.

[0016] As a preferred technical solution, the spacing between adjacent connection components is 500 mm to 800 mm.

[0017] In summary, the utility model has the following technical effects:

[0018] The utility model discloses a formwork-free steel bar truss floor deck, which includes a base plate, a steel bar truss and a plurality of connection components. The base plate is a high-strength fiber cement board; the connection components include a pad, a steel deck and a plurality of fasteners, the pad is arranged on the top of the base plate, the steel deck is erected on the top of the pad, and the fasteners are used to connect the steel deck and the base plate; the steel bar truss is fixed to the top of the steel deck by welding. The above-mentioned floor deck structure has the following advantages: 1. The steel bar truss is indirectly fixed to the base plate through the connection component, avoiding the quality defects of the traditional steel plate composite floor; 2. The high-performance base plate made of high-strength fiber cement board can be directly used as the base layer of the decoration, thereby eliminating the construction process of the suspended ceiling; 3. The thickness requirement of the steel bar protective layer can be effectively met by setting the pad. Therefore, compared with the existing floor deck technology, the formwork-free steel bar truss floor deck provided by the utility model has obvious technical advantages. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 It is a front view schematic diagram of a steel bar truss floor decking plate that does not require formwork removal provided by some embodiments;

[0021] Figure 2 is a side view schematic diagram of a steel bar truss floor decking plate that does not require formwork removal provided by some embodiments;

[0022] The meanings of the reference numerals are as follows:

[0023] 1- Bottom plate;

[0024] 21- pad, 22- steel bearing plate, 23- fastener;

[0025] 31-upper chord reinforcement, 32-lower chord reinforcement, 33-web reinforcement;

[0026] 41-first distribution steel bars, 42-second distribution steel bars. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in this embodiment to clearly and completely describe the technical solution in this embodiment. The embodiment described in this article is only for illustrative purposes, and is not intended to limit the scope of protection of the utility model. Therefore, it should be understood that various modifications and changes can be made to this embodiment without departing from the scope of protection of the utility model.

[0028] In the description of the present invention, unless otherwise clearly specified and limited, the term "and / or" includes any and all combinations of one or more associated listed items. Unless otherwise specified or explained, the terms "connection", "fixed", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; "connection" can be a direct connection or an indirect connection through an intermediate medium. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] Further, in the description of the present utility model, it should be understood that the directional words described in the present embodiment are described at the angles shown in the accompanying drawings and should not be understood as limiting the present embodiment. It should also be understood that in the context, when it is mentioned that an element or feature is connected to another element (one or more), it can not only be directly connected to the other (one or more) elements, but also indirectly connected to the other (one or more) elements through an intermediate element.

[0030] Before introducing the technical solution of the utility model, it is necessary to explain the creation background of the invention of the utility model. It is common that during the construction stage, the connection between the steel truss and the steel plate depends on the welding quality of the web reinforcement and the steel plate. However, it is found in actual projects that the steel truss floor deck is prone to problems such as welding leakage and desoldering between the steel skeleton and the steel plate, and easy rust on the surface of the steel plate, which affects the welding quality and safety of the steel truss and the steel plate, and it is difficult to ensure the safe distance of the steel bar protective layer. In addition, on-site formwork and demolding increase the on-site operation process, high labor costs, and a long construction period. To this end, the utility model aims to provide a steel truss floor deck that does not require demolding to address the shortcomings of the prior art, so as to solve or alleviate one or more of the above problems and ensure the safe and reliable use of the building.

[0031] Based on the above problems, the exemplary embodiment of the present utility model is shown in FIG. Figure 1 to Figure 2 , a formwork-free steel truss floor decking is provided, which includes a base plate 1, a steel truss and a number of connection components. Among them, the base plate 1 is a high-strength fiber cement board; the connection components include a pad 21, a steel decking plate 22 and a number of fasteners 23, the pad 21 is arranged on the top of the base plate 1, the steel decking plate 22 is erected on the top of the pad 21, and the fasteners 23 are used to connect the steel decking plate 22 and the base plate 1; the steel truss is fixed to the top of the steel decking plate 22 by welding. It should be noted that the base plate 1 adopts a high-strength fiber cement board, which has high strength and is not easy to deform. It has good bearing capacity, light weight, and is easy to carry. It can be directly used as the base layer of the decoration, eliminating the construction process of the ceiling and better saving construction time.

[0032] The above-mentioned floor deck structure has the following advantages: 1. The steel truss is indirectly fixed to the base plate 1 through a connecting assembly, avoiding the quality defects of the traditional steel plate composite floor; 2. The high-performance base plate 1 made of high-strength fiber cement board can be directly used as the base layer of the finishing, thereby eliminating the construction process of the suspended ceiling; 3. The setting of the pad 21 can effectively meet the requirements of the thickness of the steel bar protective layer.

[0033] In some embodiments, see Figure 1 The fasteners 23 are self-tapping screws, which are characterized by high hardness and good toughness, so as to achieve a stable connection between the steel support plate 22 and the bottom plate 1. It should be noted that the utility model does not limit the specific number of fasteners 23, as long as the steel support plate 22 can be stably connected to the bottom plate 1.

[0034] For further information, see Figure 1 The connecting assembly is a symmetrical structure, through which the force of the combined connecting parts is ensured to be uniform, so as to improve the overall stability of the floor deck. It should be noted that the utility model does not specifically limit the number of pads 21, please refer to Figure 1For example, in this embodiment, a single combined connector includes two pads 21, and a steel deck 22 is arranged on top of the two pads 21 to form a bridge-like structure; of course, in some other embodiments, a single combined connector includes only one pad 21, and a steel deck 22 is arranged on top of a single pad 21 to form a T-shaped structure, and it is only necessary to satisfy that the longitudinal section of the connecting component perpendicular to the length direction of the steel truss is a symmetrical structure. In addition, in the floor deck, the pad 21 is made of engineering plastics, galvanized steel plates or concrete blocks.

[0035] As a preferred technical solution, the height of the pad 21 needs to ensure that there is enough thickness of the steel bar protection layer between the steel bar truss and the bottom plate 1 to avoid the bottom of the steel bar truss being exposed to the concrete.

[0036] In some embodiments, see Figure 1 to Figure 2 The steel bar truss includes an upper chord steel bar 31, a lower chord steel bar 32 and a web bar steel bar 33, wherein the web bar steel bar 33 integrates the upper chord steel bar 31 and the lower chord steel bar 32, and the web bar steel bar 33 is fixed to the top of the steel deck 22 by welding. It should be noted that the connection method of the upper chord steel bar 31, the lower chord steel bar 32 and the web bar steel bar 33 can adopt different fastening forms, such as welding, buckle, etc., and the present utility model does not make specific limitations on this.

[0037] As a preferred technical solution, please refer to Figure 1 to Figure 2 The floor decking plate also includes a first distribution steel bar 41 and a second distribution steel bar 42. The first distribution steel bar 41 is close to the upper chord steel bar 31 and is arranged horizontally perpendicular to the steel truss. The second distribution steel bar 42 is close to the lower chord steel bar 32 and is arranged horizontally perpendicular to the steel truss. The structure of arranging the first and second distribution steel bars can make the steel trusses tightly connected, thereby playing a good reinforcement role on the upper chord steel bars 31 and the lower chord steel bars 32 of each steel truss, thereby improving the stability of the steel truss floor decking plate. In addition, as a preferred technical solution, the spacing between adjacent connecting components is 500mm to 800mm.

[0038] For the above-mentioned steel bar truss floor decking that does not require demolding, its production process mainly includes cutting the bottom plate 1, welding the steel bar truss, positioning the combined connecting parts, and positioning and placing the steel bar truss and the first and second distribution steel bars. The assembly is simple and convenient, which improves the production efficiency. In summary, compared with the existing floor decking technology, the steel bar truss floor decking that does not require demolding provided by the utility model has obvious technical advantages.

[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A steel bar truss floor decking plate without formwork removal, characterized in that: include: A base plate, wherein the base plate is a high-strength fiber cement board; A plurality of connection components, any of which comprises a cushion block, a steel support plate and a plurality of fasteners, wherein the cushion block is arranged on the top of the base plate, the steel support plate is arranged on the top of the cushion block, and the fasteners are used to connect the steel support plate and the base plate; A steel truss is fixed to the top of the steel deck by welding.

2. The formwork-free steel truss floor deck according to claim 1 is characterized in that: The fastener is a self-tapping screw.

3. The formwork-free steel truss floor deck according to claim 1 is characterized in that: The connecting component has a symmetrical structure.

4. The formwork-free steel truss floor deck according to claim 1 is characterized in that: The cushion block is made of engineering plastics, galvanized steel plates or concrete blocks.

5. The formwork-free steel truss floor deck according to claim 1 is characterized in that: The height of the pad block must ensure that there is sufficient thickness of the steel bar protective layer between the steel bar truss and the bottom plate.

6. The formwork-free steel truss floor deck according to claim 1 is characterized in that: The steel bar truss comprises an upper chord steel bar, a lower chord steel bar and a web steel bar, wherein the web steel bar integrates the upper chord steel bar and the lower chord steel bar, and the web steel bar is fixed to the top of the steel deck by welding.

7. The formwork-free steel truss floor deck according to claim 6 is characterized in that: The floor deck also includes a first distribution steel bar and a second distribution steel bar. The first distribution steel bar is closely attached to the upper chord steel bar and is horizontally arranged perpendicular to the steel bar truss. The second distribution steel bar is closely attached to the lower chord steel bar and is horizontally arranged perpendicular to the steel bar truss.

8. The formwork-free steel truss floor deck according to claim 1 is characterized in that: The spacing between adjacent connection components is 500 mm to 800 mm.

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