Thermal insulation integrated steel bar truss metal floor support plate
By using flame-retardant polyurethane hard foam adhesive layer in the steel bar truss bearing plate, the insulation board and the micro-rib pressure-shaped steel plate are glued into one whole, the quality and construction efficiency of the steel bar truss bearing plate are solved, and efficient insulation is achieved Thermal insulation effect and construction ease.
Patent Information
- Application Number
- CN202421060728.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-16
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2034-05-16
AI Technical Summary
The surface of the micro-rib pressure-shaped steel plate of the steel bar truss bearing plate is smooth and difficult to adhere to the plastered mortar. The thin bottom plate leads to poor stiffness and affects quality. The cast-in-place insulation layer has a long construction cycle, a large area and high labor costs.
The insulation board and the micro-rib pressure-shaped steel plate are glued into a whole by using flame retardant polyurethane hard foam adhesive layer, and connected to the insulation board through the connecting parts to improve the insulation, heat insulation, flame retardant and tensile effects of the structure. The adhesive layer is formed by grouting of polyurethane.
It realizes rapid drying and maintenance-free connection of insulation boards, shortens construction period, reduces labor costs, improves construction efficiency and thermal insulation performance of the overall structure.
Smart Images
Figure CN222252699U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of building floor components, and more specifically to an insulation integrated 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, the surface of the micro-ribbed corrugated steel plate is smooth and difficult to adhere to the plaster mortar. On the other hand, the bottom plate of the steel truss floor deck is generally thin, resulting in poor rigidity perpendicular to the steel truss direction and easy bending and deformation. These seriously affect the quality of the steel truss floor deck. Therefore, the above problems are overcome by casting an insulation layer on one side of the micro-ribbed corrugated steel plate. However, the cast-in-place insulation layer needs to be maintained for 20-28 days, has a long construction and maintenance cycle, occupies a large area, and has high labor costs. Other problems need to be solved urgently. Utility Model Content
[0004] The purpose of the utility model is to provide a self-insulating steel bar truss metal floor decking plate, which adopts the existing insulation board and quickly sticks the insulation board and the micro-ribbed corrugated steel plate into a whole through a flame-retardant polyurethane hard foam adhesive layer, which not only improves the thermal insulation, heat insulation, flame retardancy and bending and tensile resistance effects, but also can firmly connect the insulation board and the micro-ribbed corrugated steel plate into a whole, the bonding is quick-drying, no maintenance time is required, and it can be stacked together after being made, which occupies a small area, has high production efficiency, simplifies the process, and reduces labor costs.
[0005] The technical solution adopted by the utility model is as follows: the utility model provides an insulation integrated steel truss metal floor decking plate, including an insulation plate, a micro-ribbed corrugated steel plate and a plurality of groups of steel trusses arranged in parallel on the micro-ribbed corrugated steel plate, the steel plates on both sides of the micro-ribbed corrugated steel plate are curled downward, the two ends are sealed with insulation plates, and are connected to the insulation plates through connecting parts, and a flame-retardant polyurethane hard foam adhesive layer is injected with high pressure into the cavity between the micro-ribbed corrugated steel plate and the insulation plate.
[0006] Grouting holes are arranged on both sides of the micro-ribbed corrugated steel plate, and the grouting holes are used for polyurethane grouting.
[0007] Each group of the steel trusses is welded from an upper chord steel bar, two lower chord steel bars and a web bar steel bar. The web bar steel bars are connected and fixed to the micro-ribbed corrugated steel plates by welding, and the strength of the overall structure is improved by the steel trusses.
[0008] The thickness of the flame retardant polyurethane rigid foam adhesive layer is 5-15mm. The flame retardant polyurethane rigid foam adhesive layer mainly plays a connecting role, followed by flame retardancy and heat insulation. Therefore, a thickness of 5-15mm can well meet the design requirements and is also easy to complete by injection filling.
[0009] The thickness of the insulation board is 10-30 mm, so that it has a heat preservation effect and can meet the construction requirements.
[0010] The connecting piece is a ZXF anchoring connecting piece.
[0011] Concrete floor slabs are cast on the micro-ribbed corrugated steel plates, and the thermally-insulated integrated steel truss metal floor decking plates are directly assembled and then cast with concrete after being transported to the construction site, which can save construction period, and the concrete cast on site has better integrity.
[0012] The thickness of the concrete floor slab is 100-200 mm.
[0013] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:
[0014] The flame retardant polyurethane rigid foam adhesive layer of the utility model has high efficient insulation, high specific strength, high efficient heat insulation and self-extinguishing property, thus improving the thermal insulation flame retardant property of the board; and due to the adhesive property of the flame retardant polyurethane rigid foam adhesive layer, the thermal insulation board is prevented from falling off, and the existing thermal insulation board can be directly bonded, thus reducing the maintenance time of the thermal insulation board made by cast-in-place of thermal insulation materials, shortening the construction period, reducing the work of cast-in-place, and improving the production efficiency of the product.
[0015] The utility model not only has good thermal insulation and sound insulation performance, but also has the advantages of light weight and high strength. Residential buildings or office buildings constructed using the steel truss floor deck do not require subsequent construction of an insulation layer, which reduces construction procedures and shortens the building period. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] The present invention will be described by way of examples with reference to the accompanying drawings, in which:
[0017] Figure 1 It is a front structural schematic diagram of the utility model;
[0018] Figure 2 It is a left structural schematic diagram of the utility model;
[0019] Figure 3This is a schematic diagram of the front skeleton structure of the utility model;
[0020] Figure 4 It is a schematic diagram of the left skeleton structure of the utility model;
[0021] Figure 5 It is an enlarged view of point A of the utility model;
[0022] Markings in the figure are: 1-concrete floor, 2-micro-ribbed corrugated steel plate, 3-flame-retardant polyurethane rigid foam adhesive layer, 4-insulation board, 5-connector, 6-lower chord steel bar, 7-upper chord steel bar, 8-grouting hole, 9-web bar steel bar. 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.
[0025] Example 1
[0026] like Figure 1-5 As shown, this embodiment provides an insulated integrated steel truss metal floor decking, including an insulation board 4, a micro-ribbed corrugated steel plate 2 and a plurality of groups of steel trusses arranged in parallel on the micro-ribbed corrugated steel plate 2, the steel plates on both sides of the micro-ribbed corrugated steel plate 2 are rolled downward, the two ends are sealed with insulation boards 4, and are connected to the insulation board 4 through connectors 5, and the cavity between the micro-ribbed corrugated steel plate 2 and the insulation board 4 is injected with a flame-retardant polyurethane hard foam adhesive layer 3 under high pressure.
[0027] Example 2
[0028] On the basis of Example 1, grouting holes 8 are provided at both ends of the micro-ribbed corrugated steel plate 2, and the grouting holes 8 are used for polyurethane grouting.
[0029] Example 3
[0030] Based on Example 1, each group of the steel trusses is welded by an upper chord steel bar 7, two lower chord steel bars 6 and a web steel bar 9. The web steel bar 9 is connected and fixed to the micro-ribbed corrugated steel plate 2 by welding, and the strength of the overall structure is improved by the steel trusses.
[0031] Example 4
[0032] Based on Example 1, the thickness of the flame retardant polyurethane rigid foam adhesive layer 3 is 5-15mm. The flame retardant polyurethane rigid foam adhesive layer 3 mainly plays a connecting role, followed by flame retardancy and heat insulation. Therefore, a thickness of 5-15mm can well meet the design requirements and is also easy to complete by injection filling.
[0033] Example 5
[0034] On the basis of Example 1, the thickness of the insulation board 4 is 10-30 mm, so that it has a heat preservation effect and can meet the construction requirements.
[0035] Example 6
[0036] On the basis of Example 1, the connector 5 is a ZXF anchor connector.
[0037] Example 7
[0038] On the basis of Example 1, the concrete floor slab 1 is cast on the micro-ribbed corrugated steel plate 2, and the thermal insulation integrated steel truss metal floor deck is transported to the construction site and directly assembled and then cast with concrete, which can save the construction period, and the concrete cast on site has better integrity.
[0039] Example 8
[0040] Based on Example 7, the thickness of the concrete floor slab 1 is 100-200 mm.
[0041] The specific steps of the production method of the utility model are as follows: first, a CNC shearing machine shears a plate, and a CNC bending machine curls the steel plate at 90° with a height of 1 cm to obtain a micro-ribbed corrugated steel plate 2; 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 2, and then the insulation board 4 is connected to the lower surface of the micro-ribbed corrugated steel plate 2 through a connecting piece 5, and finally, polyurethane rigid foam is injected into the grouting holes 8 reserved at both ends of the micro-ribbed corrugated steel plate 2, and after injection, it contacts with air to form a flame-retardant polyurethane rigid foam bonding layer 3, and the cavity between the insulation board 4 and the micro-ribbed corrugated steel plate 2 is filled, so as to obtain an insulation integrated steel truss metal floor deck.
Claims
1. A heat-insulating integrated steel truss metal floor deck, comprising a heat-insulating board (4), a micro-ribbed corrugated steel plate (2), and a plurality of groups of steel trusses arranged in parallel on the micro-ribbed corrugated steel plate (2), characterized in that: The steel plates on both sides of the micro-ribbed corrugated steel plate (2) are rolled downward, and the two ends are sealed with insulation plates, and are connected to the insulation plate (4) through a connecting piece (5). The cavity between the micro-ribbed corrugated steel plate (2) and the insulation plate (4) is injected with a flame-retardant polyurethane hard foam adhesive layer (3) under high pressure.
2. The thermal insulation integrated steel truss metal floor deck according to claim 1, characterized in that: Polyurethane grouting holes (8) are provided on both sides of the micro-ribbed corrugated steel plate (2).
3. The thermal insulation integrated steel truss metal floor deck according to claim 1, characterized in that: Each group of the steel bar trusses is welded together by an upper chord steel bar (7), two lower chord steel bars (6) and a web steel bar (9), and the web steel bar (9) is connected and fixed to the micro-ribbed corrugated steel plate (2) by welding.
4. The thermal insulation integrated steel truss metal floor deck according to claim 1, characterized in that: The thickness of the flame retardant polyurethane rigid foam adhesive layer (3) is 5-15 mm.
5. The thermal insulation integrated steel truss metal floor deck according to claim 1, characterized in that: The thickness of the insulation board (4) is 10-30 mm.
6. The thermal insulation integrated steel truss metal floor deck according to claim 1, characterized in that: The connecting piece (5) is a ZXF anchoring connecting piece.
7. The thermal insulation integrated steel truss metal floor deck according to claim 1, characterized in that: A concrete floor slab (1) is poured on the micro-ribbed corrugated steel plate (2).
8. The thermal insulation integrated steel bar truss metal floor deck according to claim 7, characterized in that: The thickness of the concrete floor slab (1) is 100-200 mm.