Heat preservation and sound insulation integrated disassembly-free bottom die steel bar truss floor support plate

Abstract

The utility model relates to the technical field of buildings, in particular to a heat preservation and sound insulation integrated disassembly-free bottom die steel bar truss floor support plate which comprises a fiber toughening concrete plate, a cement-based elastic polymer material layer, a composite material heat preservation plate and a cement-based reinforcing material layer. A rear anchor bolt is arranged on the cement-based reinforcing material layer, and the rear anchor bolt sequentially penetrates through the composite material heat preservation plate and the cement-based elastic polymer material layer and penetrates through and is anchored in the fiber toughened concrete plate; web member reinforcing steel bars are pre-buried in the fiber toughened concrete plate, and the upper ends of the web member reinforcing steel bars are located in post-pouring concrete constructed on site; a steel bar mesh is arranged in the fiber toughened concrete plate, and the web member steel bars are welded to the steel bar mesh. The steel bar truss floor support plate is low in manufacturing cost and integrates the heat preservation function and the sound insulation function.

Description

Technical Field

[0001] The utility model relates to the technical field of construction, in particular to a heat-insulating and sound-insulating integrated bottom formwork-free steel bar truss floor decking plate. Background Art

[0002] The floor slab is generally composed of multiple groups of structures, and its thickness is limited. It mainly has load-bearing properties. The floor slab is finally formed by pouring concrete on the floor slab on site. In order to meet the functional requirements of green buildings, it is necessary to add insulation and sound insulation materials to the floor slab during use, which not only increases the overall thickness of the floor, but also increases the complexity of on-site construction.

[0003] Therefore, it is necessary to design a thermal insulation and sound insulation integrated bottom formwork-free steel truss floor deck to solve the problems in the above-mentioned background technology. Utility Model Content

[0004] The utility model aims to solve the problems in the prior art and proposes a heat-insulating and sound-insulating integrated bottom-form-free steel truss floor deck.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] The invention discloses a heat-insulating and sound-insulating integrated bottom formwork-free steel truss floor deck, comprising a fiber-reinforced concrete board, a cement-based elastic polymer material layer, a composite material heat-insulating board and a cement-based reinforcing material layer; the fiber-reinforced concrete board, the cement-based elastic polymer material layer, the composite material heat-insulating board and the cement-based reinforcing material layer are arranged in sequence from top to bottom, and a post-anchor bolt is arranged on the cement-based reinforcing material layer, and the post-anchor bolt passes through the composite material heat-insulating board and the cement-based elastic polymer material layer in sequence, penetrates and is anchored in the fiber-reinforced concrete board; a web steel bar with the upper end extending out of the fiber-reinforced concrete board (1) is pre-embedded in the fiber-reinforced concrete board; a steel mesh is arranged in the fiber-reinforced concrete board, and the web steel bar is welded to the steel mesh.

[0007] The lower chord steel bars are welded to the web steel bars.

[0008] The protruding end of the post-set anchor bolt is higher than the lower chord reinforcement.

[0009] An upper chord steel bar is welded on the upper part of the web steel bar.

[0010] Before the cement-based reinforcement material layer begins to set, spread the composite insulation board slurry.

[0011] The cement-based elastic polymer material layer is sprayed on the surface of the composite material insulation board and is cured and solidified.

[0012] The post-anchor bolts are composed of a plastic nylon expansion sleeve, a barbed reinforced nylon core nail and a disc, wherein the disc is flush with the surface of the cement-based reinforcement material, and 5 to 7 discs are distributed in a plum blossom shape per square.

[0013] Compared with the prior art, the technical effects of the utility model are:

[0014] The thermal insulation and sound insulation integrated non-removable bottom formwork steel truss floor decking, the fiber-reinforced concrete board is cast by fiber-doped high-performance concrete, which serves as the concrete board of the floor bottom formwork and forms a protective layer for the steel truss, and the specific thickness is determined according to the structural load-bearing design; the steel mesh, lower chord steel bars, upper chord steel bars and web bars are welded to form a steel truss, and the steel truss is subjected to force together with the upper on-site post-cast concrete slab; the post-anchor bolts are composed of plastic nylon expansion sleeves, barbed reinforced nylon through nails and discs, and are installed on the bottom side of the cement-based reinforcement material layer before pouring concrete on the upper part of the fiber-reinforced concrete slab, and are used to strengthen the fixed connection between the cement-based elastic polymer material layer, the composite material insulation board, the cement-based reinforcement material layer and the fiber-reinforced concrete slab.

[0015] The post-installed anchor bolts pass through the fiber-reinforced concrete slab and are higher than the lower chord steel bars, thereby forming a riveted connection with the cast-in-place concrete during the subsequent concrete pouring, thereby improving the connection strength between the bottom formwork and the cast-in-place layer.

[0016] The composite thermal insulation and sound insulation reinforced board is composed of a cement-based elastic polymer material layer, a composite thermal insulation board and a cement-based reinforcement material layer. The design thickness of each structural layer is determined according to the thermal insulation and sound insulation effect. The composite thermal insulation board is a plate-shaped product made of silicate cement as a cementitious material, flame-retardant EPS particles and closed-cell vitrified microspheres as the main thermal insulation fillers, with the addition of admixtures, and is made through processes such as mixing, double-sided glass fiber mesh composite, surface plasticization film forming, low-temperature maintenance, and cutting; the thermal insulation and sound insulation integrated non-removable bottom form steel truss floor deck is a composite load-bearing board with thermal insulation and sound insulation functions, which is composed of a composite thermal insulation and sound insulation reinforced board laminated with a fiber-reinforced concrete board as the bottom plate and a steel truss. It can be produced in a streamlined production line to achieve continuous mechanized production. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall cross-sectional structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the composite material insulation board of the utility model;

[0019] Figure 3 This is a cross-sectional structural diagram of the steel truss of the present utility model.

[0020] In the figure: 1. Fiber-reinforced concrete slab; 2. Cement-based elastic polymer material layer; 3. Composite material insulation board; 4. Cement-based reinforcing material layer; 5. Steel mesh; 6. Post-anchor bolts; 7. Lower chord steel bars; 8. Upper chord steel bars; 9. Web bar steel bars. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0022] Reference Figure 1-Figure 3 The thermal insulation and sound insulation integrated non-removal bottom formwork reinforced truss floor decking is a layered structure, including a fiber-reinforced concrete slab 1 forming a bottom formwork, a cement-based elastic polymer material layer 2, a composite material insulation board 3 and a cement-based reinforcing material layer 4.

[0023] The thermal insulation and sound insulation integrated bottom formwork-free steel truss floor decking also includes a steel mesh, including a steel mesh 5, a lower chord steel bar 7, an upper chord steel bar 8 and a web steel bar 9. A plurality of web steel bars 9 are connected to the upper end of the steel mesh 5. The upper part of the web steel bar 9 is welded with an upper chord steel bar 8. The lower two sides of the web steel bar 9 are connected with lower chord steel bars 7. A plurality of post-installed anchor bolts 6 are connected to the lower end of the steel mesh 5. A fiber-reinforced concrete slab 1 is provided on the outside of the steel mesh 5. A cement-based elastic polymer material layer 2 is provided at the lower end of the fiber-reinforced concrete slab 1. A composite material insulation board 3 is provided at the lower end of the cement-based elastic polymer material layer 2. A cement-based reinforcing material layer 4 is provided at the lower end of the composite material insulation board 3.

[0024] Reference Figure 1 and Figure 3 The fiber-reinforced concrete slab 1 is cast by high-performance concrete mixed with fiber, which serves as the concrete slab of the floor bottom formwork and forms a protective layer for the steel truss. The steel mesh 5, the lower chord steel bars 7, the upper chord steel bars 8 and the web steel bars 9 are welded to form a steel truss, and the steel truss is subjected to force together with the upper on-site cast concrete slab.

[0025] Reference Figure 1 and Figure 2 The post-anchor bolt 6 is composed of a plastic nylon expansion sleeve, a barbed reinforced nylon through-pin and a disc, and is installed on the bottom side of the cement-based reinforcing material layer 4 before pouring concrete on the upper part of the fiber-reinforced concrete slab, and is used for fixed connection between the cement-based elastic polymer material layer 2, the reinforced composite material insulation board 3, the cement-based reinforcing material layer 4 and the fiber-reinforced concrete slab 1.

[0026] Reference Figure 1 , Figure 2 and Figure 3, the cement-based elastic polymer material layer 2, the composite material insulation board 3 and the cement-based reinforcement material layer 4 constitute a composite material insulation and sound insulation reinforced board. The composite material insulation board 3 is a plate-shaped product made of silicate cement as a gelling material, flame-retardant EPS particles and closed-cell vitrified microspheres as the main insulation fillers, with the addition of admixtures, and is made through stirring, double-sided glass fiber mesh compounding, surface plasticization film forming, low-temperature curing, cutting and other processes. The thermal insulation and sound insulation integrated non-removable bottom form steel truss floor deck is a combined load-bearing board with thermal insulation and sound insulation functions, which is composed of a composite material thermal insulation and sound insulation reinforced board laminated with a fiber-reinforced concrete board 1 as a bottom plate and a steel truss.

[0027] The fiber-reinforced concrete slab 1 in the thermal insulation and sound insulation integrated non-removable bottom formwork reinforced truss floor decking is cast with fiber-doped high-performance concrete, serves as the concrete slab of the floor bottom formwork, and forms a protective layer for the reinforced truss; the steel mesh 5, the lower chord steel bars 7, the upper chord steel bars 8 and the web steel bars 9 are welded to form a reinforced truss, and the reinforced truss is subjected to force together with the upper concrete slab cast on site; the post-anchor bolt 6 is composed of a plastic nylon expansion sleeve, a barbed reinforced nylon through-nail and a disc, and is installed on the bottom side of the cement-based reinforcing material layer 4 before pouring concrete on the upper part of the fiber-reinforced concrete slab 1, and is used to strengthen the fixed connection between the cement-based elastic polymer material layer 2, the composite material insulation board 3, the cement-based reinforcing material layer 4 and the fiber-reinforced concrete slab 1. The cement-based elastic polymer material layer 2, the composite material insulation board 3 and the cement-based reinforcement material layer 4 constitute a composite material insulation and sound insulation reinforced board. The composite material insulation board 3 is a plate-shaped product made of silicate cement as a gelling material, flame-retardant EPS particles and closed-cell vitrified microspheres as the main insulation fillers, with the addition of admixtures, and is made through stirring, double-sided glass fiber mesh compounding, surface plasticization film forming, low-temperature curing, cutting and other processes. The insulation and sound insulation integrated non-removable bottom form steel truss floor deck is a combined load-bearing board with insulation and sound insulation functions, which is composed of a composite material insulation and sound insulation reinforced board laminated with a fiber-reinforced concrete board 1 as a bottom plate and a steel truss.

[0028] Although 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 appended claims and their equivalents.

Claims

1. Thermal insulation and sound insulation integrated non-removal bottom formwork steel truss floor deck, characterized by: The invention comprises a fiber-reinforced concrete slab (1), a cement-based elastic polymer material layer (2), a composite material insulation slab (3) and a cement-based reinforcement material layer (4); the fiber-reinforced concrete slab (1), the cement-based elastic polymer material layer (2), the composite material insulation slab (3) and the cement-based reinforcement material layer (4) are arranged in sequence from top to bottom; a post-anchor bolt (6) is arranged on the cement-based reinforcement material layer (4); the post-anchor bolt (6) passes through the composite material insulation slab (3) and the cement-based elastic polymer material layer (2) in sequence, penetrates and is anchored in the fiber-reinforced concrete slab (1); a web steel bar (9) is pre-embedded in the fiber-reinforced concrete slab (1) and the upper end of the web steel bar (9) protrudes out of the fiber-reinforced concrete slab (1); a steel mesh (5) is arranged in the fiber-reinforced concrete slab (1), and the web steel bar (9) is welded to the steel mesh (5).

2. The thermal insulation and sound insulation integrated non-removable bottom formwork steel truss floor deck according to claim 1 is characterized in that: A lower chord steel bar (7) is welded to the web steel bar (9).

3. The thermal insulation and sound insulation integrated bottom formwork-free steel truss floor decking according to claim 2 is characterized in that: The protruding end of the post-installed anchor bolt (6) is higher than the lower chord reinforcement (7).

4. The thermal insulation and sound insulation integrated non-removable bottom formwork steel truss floor deck according to claim 1 is characterized in that: An upper chord steel bar (8) is welded to the upper part of the web steel bar (9).

5. The thermal insulation and sound insulation integrated bottom formwork-free steel truss floor deck according to claim 1 is characterized in that: Before the cement-based reinforcement material layer begins to set, spread the composite insulation board slurry.

6. The thermal insulation and sound insulation integrated bottom formwork-free steel truss floor deck according to claim 1 is characterized in that: The cement-based elastic polymer material layer is sprayed on the surface of the composite material insulation board and is cured and solidified.

7. The thermal insulation and sound insulation integrated non-removable bottom formwork steel bar truss floor deck according to claim 1 is characterized by: The post-anchor bolt (6) is composed of a plastic nylon expansion sleeve, a barbed reinforced nylon through-pin and a disc, wherein the disc is flush with the surface of the cement-based reinforcement material, and 5 to 7 discs are arranged per square meter in a plum blossom shape.

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