Self-insulation steel bar truss metal floor support plate

Abstract

The utility model discloses a self-heat-preservation steel bar truss metal floor support plate, relates to the technical field of building floor components, and not only solves the problems that the surface of a micro-rib profiled steel plate is smooth, mortar is difficult to attach during plastering, and a heat preservation structure is integrated, but also solves the problems that an existing laminated PC plate structure is large in dead weight, large in production, transportation and installation difficulty and the like. The structure comprises a steel bar truss, a micro-rib profiled steel plate, a light heat preservation layer and anchoring parts, the peripheral steel plate of the micro-rib profiled steel plate is curled downwards and is fixed through angle steel, the upper surface of the micro-rib profiled steel plate is connected with the steel bar truss at intervals, the anchoring parts are installed in a cavity formed by the curled edge of the micro-rib profiled steel plate in a matrix mode, and the light heat preservation layer is arranged on the anchoring parts. And a light thermal insulation layer is cast in situ. According to the utility model, the micro-rib profiled steel sheet prefabricated with the thermal insulation layer and the steel bar truss are welded into a whole, so that the strength and rigidity of the assembly structure can be improved, and the assembly structure is prevented from being easily deformed; through the arrangement of the steel bar trusses, the rigidity of the steel plate is improved, and structural deformation is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of building floor components, and more specifically to a self-insulating steel bar truss metal floor deck. Background Art

[0002] The steel truss floor deck is a composite load-bearing plate that connects the steel truss and the micro-ribbed corrugated steel plate into a whole through resistance welding. The steel truss is a truss made of steel bars as the upper chord, lower chord and web, connected by resistance welding. During the construction of the concrete floor, the micro-ribbed corrugated steel plate can be used as the bottom formwork, and the steel truss provides support rigidity for the bottom formwork. Compared with the traditional floor that supports concrete by formwork, the steel truss floor deck enhances the support effect and reduces the number of conventional supports, which is conducive to uniform spacing of steel bars, consistent thickness of concrete cover, and improves the construction quality of the floor; it can significantly reduce the amount of on-site steel bar binding work, speed up the construction progress, increase construction safety assurance, and achieve civilized construction.

[0003] At present, on the one hand, because the surface of the micro-ribbed corrugated steel plate is smooth and difficult to adhere to plaster mortar, the bottom plate of the steel truss floor deck generally needs to be treated with a ceiling decoration, which increases the cost and has a negative impact on the net height of the floor, and is not suitable for residential buildings with low floors; on the other hand, because the bottom plate of the steel truss floor deck is generally thin, the rigidity perpendicular to the steel truss is poor and it is easy to bend and deform. These seriously affect the quality of the steel truss floor deck, making it difficult to use it in large quantities in general residences. Summary of the invention

[0004] The purpose of the utility model is to easily apply mortar to the bottom of the micro-ribbed corrugated steel plate without falling off during decoration, and to improve the firmness of installing other components on the micro-ribbed corrugated steel plate, thereby improving the rigidity, bending resistance and integrity of the metal plate after construction, and providing a self-insulating steel bar truss metal floor decking plate.

[0005] The technical solution adopted by the utility model is as follows: the utility model provides a self-insulating steel bar truss metal floor decking, including a micro-ribbed corrugated steel plate, a lightweight insulation layer and a steel bar truss, the steel plates around the micro-ribbed corrugated steel plate are curled downward and fixed with angle steels, the upper surface of the micro-ribbed corrugated steel plate is connected to the steel bar truss at a distance, the cavity of the curled edge of the micro-ribbed corrugated steel plate is installed with anchors in a matrix, and a lightweight insulation layer is cast in place.

[0006] The steel truss includes an upper chord steel bar, a lower chord steel bar and a web steel bar. The tops of the two web steel bars are welded by the upper chord steel bar, the bottoms of the web steel bars are welded to the micro-ribbed corrugated steel plate, and the middle of the web steel bars is reinforced by the lower chord steel bar. The strength of the overall structure is improved by the steel truss.

[0007] The upper surface of the micro-ribbed corrugated steel plate is sprayed with a metal protective layer to prevent rust and corrosion.

[0008] The metal protective layer is a high temperature resistant heat insulating layer; it has low thermal conductivity, low specific heat, outstanding heat preservation and heat insulation effects, high temperature stability and corrosion resistance.

[0009] The lower chord steel bars are located 1.5-2 cm above the lightweight insulation layer to meet the concrete protective layer requirements for the lower chord steel bars.

[0010] The thickness of the lightweight thermal insulation layer is 2-5 cm, which not only has thermal insulation effect but also meets construction requirements.

[0011] The height of the steel truss is 7-20cm.

[0012] The anchoring piece is a ZXF anchoring connector.

[0013] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0014] The utility model curls the steel plate of the micro-ribbed corrugated steel plate, fixes and reinforces the curled edge with angle steel, and then welds the steel truss to form a whole with the micro-ribbed corrugated steel plate and the steel truss, thereby improving the strength of the structure and avoiding easy deformation.

[0015] The utility model provides a high temperature resistant heat insulation layer on the surface of the micro-ribbed corrugated steel plate, that is, sprays a layer of various existing commercially available high temperature resistant heat insulation coatings, so that the micro-ribbed corrugated steel plate is protected and prevented from rusting and corrosion.

[0016] The utility model prefabricates a light insulation layer on the lower surface of the micro-ribbed corrugated steel plate and fixes it with anchor pieces, thereby increasing the strength of the steel plate, preventing structural deformation and meeting construction requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be described by way of examples with reference to the accompanying drawings, in which:

[0018] Figure 1 It is a front structural schematic diagram of the utility model;

[0019] Figure 2 It is a left structural schematic diagram of the utility model;

[0020] Figure 3 This is a schematic diagram of the front skeleton structure of the utility model;

[0021] Figure 4 It is a schematic diagram of the left skeleton structure of the utility model;

[0022] Markings in the figure are: 1-upper chord steel bars, 2-lower chord steel bars, 3-micro-ribbed corrugated steel plates, 4-angle steels, 5-web bar steel bars, 6-anchors, 7-lightweight insulation layers. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. The components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0024] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Example 1

[0025] like Figure 1-4 As shown, this embodiment provides a self-insulating steel truss metal floor decking plate, including a micro-ribbed corrugated steel plate 3, a lightweight insulation layer 7 and a steel truss. The steel plates around the micro-ribbed corrugated steel plate 3 are rolled down and fixed with angle steels 4. The upper surface of the micro-ribbed corrugated steel plate 3 is connected to the steel truss at a distance. Anchors 6 are installed in a matrix in the rolled cavity of the micro-ribbed corrugated steel plate 3, and a lightweight insulation layer 7 is cast in place. Example 2

[0026] On the basis of Example 1, the steel truss includes an upper chord steel bar 1, a lower chord steel bar 2 and a web steel bar 5, the tops of the two web steel bars 5 are welded by the upper chord steel bar 1, the bottoms of the web steel bars 5 are welded to the micro-ribbed corrugated steel plate 3, and the middle part of the web steel bars 5 is reinforced by the lower chord steel bar 2; the strength of the overall structure is improved by the steel truss. Example 3

[0027] On the basis of Example 1, the upper surface of the micro-ribbed corrugated steel plate 3 is sprayed with a metal protective layer to prevent rust and corrosion. Example 4

[0028] On the basis of Example 3, the metal protective layer is a high temperature resistant heat insulating layer; it has low thermal conductivity, low specific heat, outstanding heat preservation and insulation effects, high temperature stability and corrosion resistance. Example 5

[0029] On the basis of Example 2, the lower chord steel bars 2 are located 1.5-2 cm above the lightweight insulation layer 7 to meet the concrete protection layer requirements of the lower chord steel bars 2. Example 6

[0030] On the basis of Example 1, the thickness of the lightweight thermal insulation layer 7 is 2-5 cm, which can provide thermal insulation effect and meet construction requirements. Example 7

[0031] Based on Example 1, the height of the steel bar truss is 7-20 cm. Example 8

[0032] Based on Example 1, the anchor 6 is a ZXF anchor connector.

[0033] The specific steps of the production method of the utility model are as follows: first, a CNC shearing machine shears a plate, a CNC dismantling and bending machine curls the steel plate at 90° to a height of 3-7 cm, and then the curling is reinforced with an angle steel 4 to obtain a micro-ribbed corrugated steel plate 3; then, cold-rolled and hot-rolled ribbed steel bars and cold-rolled round steel bars with a diameter of 5-12 mm are welded into a triangular special steel truss; then, the steel truss is welded to the micro-ribbed corrugated steel plate 3, and then a metal protective layer is sprayed on the upper surface of the micro-ribbed corrugated steel plate 3, and finally a lightweight thermal insulation layer 7 is cast on the lower surface of the micro-ribbed corrugated steel plate 3; wherein the lightweight thermal insulation layer 7 uses cement, graphite polystyrene particles, lightweight aggregate, pottery, tuff, redispersible latex powder, gray wood fiber, polyamide fiber, and water as raw materials, a chemical reaction occurs after stirring, and the mechanical cloth is flattened to produce a 2-5 cm thick high-strength plate.

Claims

1. A self-insulating steel bar truss metal floor deck, comprising a micro-ribbed corrugated steel plate (3), a lightweight insulation layer (7) and a steel bar truss, characterized in that: The steel plates around the micro-ribbed corrugated steel plate (3) are rolled downward and fixed with angle steels (4); the upper surface of the micro-ribbed corrugated steel plate (3) is connected to the steel truss at intervals; anchors (6) are installed in a matrix in the cavity formed by the rolled edges of the micro-ribbed corrugated steel plate (3), and a lightweight thermal insulation layer (7) is cast in situ.

2. The self-insulating steel bar truss metal floor deck according to claim 1, characterized in that: The steel bar truss comprises an upper chord steel bar (1), a lower chord steel bar (2) and a web steel bar (5); the web steel bar (5) is connected and fixed to the upper chord steel bar (1), the lower chord steel bar (2) and the micro-ribbed corrugated steel plate (3) by welding.

3. The self-insulating steel bar truss metal floor deck according to claim 1, characterized in that: The upper surface of the micro-ribbed corrugated steel plate (3) is sprayed with a metal protective layer.

4. The self-insulating steel bar truss metal floor deck according to claim 3, characterized in that: The metal protective layer is a high temperature resistant heat insulating layer.

5. The self-insulating steel bar truss metal floor deck according to claim 2, characterized in that: The lower chord steel bars (2) are located 1.5-2 cm above the lightweight insulation layer (7).

6. The self-insulating steel bar truss metal floor deck according to claim 1, characterized in that: The thickness of the lightweight thermal insulation layer (7) is 2-5 cm.

7. The self-insulating steel bar truss metal floor deck according to claim 1, characterized in that: The height of the steel truss is 7-20cm.

8. The self-insulating steel bar truss metal floor deck according to claim 1, characterized in that: The anchoring piece (6) is a ZXF anchoring connector.

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