Truss supporting type light steel-wood-concrete composite floor

Abstract

The utility model discloses a truss support type light steel-wood-concrete composite floor, which comprises a wood plate, a concrete plate, angle steel, a load-bearing C-shaped steel plate and a support C-shaped steel plate, the wood plate is assembled at the bottom of the concrete plate, the longitudinal angle steel of the wood plate is connected to two sides of the wood plate, the length of the angle steel corresponds to the length of the wood plate, and the support C-shaped steel plate is assembled on the concrete plate. The two bearing C-shaped steel plates are fixedly connected to the side edges of the angle steel respectively, the top ends of the two bearing C-shaped steel plates are meshed with the concrete plate on the top face of the wood plate, a plurality of supporting frames are assembled at the bottom of the wood plate, a herringbone supporting C-shaped steel plate is fixedly connected into each supporting frame, and two bottom feet of each supporting C-shaped steel plate are fixedly connected into the two bearing C-shaped steel plates respectively. The method has the beneficial effects that the midspan deflection is reduced, the bearing C-shaped steel plate is prevented from being unstable, the bearing capacity is improved, meanwhile, the concrete consumption is reduced, and the dead weight of the floor is reduced.

Description

Technical Field

[0001] The utility model relates to a composite floor slab, in particular to a truss-supported light steel-wood-concrete composite floor slab. Background Art

[0002] At present, with the rapid development of social economy, steel structures are widely used. Cold-bent thin-walled steel is used in various plate-type components due to its advantages of high strength, light weight, fast construction speed and high toughness. However, due to its small cross-sectional size and relatively slender components, it is easy to experience local instability or overall instability under the action of various loads.

[0003] Wood is a renewable resource. Using wood as floor slabs is conducive to reducing dependence on non-renewable resources and is in line with the principle of sustainable development. Wood has good thermal and sound insulation properties, which can improve the insulation and reduce noise of buildings. Using wood as floor slabs is relatively light and easy to carry and install during construction, which can save construction time and cost.

[0004] Traditional building floors use reinforced concrete as the main material, which has high strength and can withstand the loads and stresses required by most floors. It also has good durability and can withstand the impact of long-term use and the environment without being easily damaged. However, the construction is complex, the construction period is long, the weight is heavy, and transportation is difficult.

[0005] Combining the advantages and disadvantages of the above-mentioned steel, wood and concrete, the utility model proposes a truss-supported light steel-wood-concrete composite floor, which combines and connects the three materials in different ways to give full play to the performance of the materials themselves, thereby achieving the purpose of enhancing the stress-bearing performance of the floor, reducing its own weight and facilitating construction. Summary of the invention

[0006] The utility model aims to enhance the stress-bearing performance of the existing floor structure, reduce the deadweight of the floor and facilitate construction, and provides a truss-supported light steel-wood-concrete composite floor.

[0007] The utility model provides a truss-supported light steel-wood-concrete composite floor slab, comprising a wooden board, a concrete board, an angle steel, a load-bearing C-shaped steel board and a supporting C-shaped steel board, wherein the wooden board is assembled at the bottom of the concrete board, the longitudinal angle steel of the wooden board is connected to both sides of the wooden board, the length of the angle steel corresponds to the length of the wooden board, two load-bearing C-shaped steel boards are respectively fixedly connected to the side edges of the angle steel, the top ends of the two load-bearing C-shaped steel boards are engaged with the concrete board on the top surface of the wooden board, a plurality of support frames are assembled at the bottom of the wooden board, a herringbone supporting C-shaped steel board is fixedly connected in each support frame, two bottom feet of the supporting C-shaped steel board are respectively fixedly connected in the two load-bearing C-shaped steel boards, a steel tie belt is assembled between the two load-bearing C-shaped steel boards at the connection with the supporting C-shaped steel boards, and the support frame, the supporting C-shaped steel board, the load-bearing C-shaped steel board and the steel tie belt form a truss structure.

[0008] The wooden board is an OSB board with a thickness of not less than 20 mm. The wooden board is connected to the top concrete slab by self-tapping screws.

[0009] The concrete slab is a cast-in-place reinforced concrete slab. The concrete slab is equipped with load-bearing steel bars and distribution steel bars. The load-bearing steel bars and distribution steel bars are evenly distributed inside the concrete slab. The spacing between the load-bearing steel bars and the distribution steel bars is not more than 400mm, and the thickness of the cast-in-place concrete is not less than 50mm.

[0010] The length of the two load-bearing C-shaped steel plates corresponds to the length of the angle steel connected on both sides of the wooden board. The width of both sides of the angle steel is not less than 30mm, and the strength grade of the angle steel is not lower than Q235.

[0011] The web width of the load-bearing C-shaped steel plate is 200mm-300mm, the width of the top of the load-bearing C-shaped steel plate extending into the concrete slab is not less than 40mm, the curling of the top of the load-bearing C-shaped steel plate penetrating into the concrete slab is not less than 20mm, and the strength grade of the load-bearing C-shaped steel plate is not less than Q235.

[0012] The several support frames at the bottom of the wooden board are connected to the wooden board through self-tapping screws, and the supporting C-shaped steel plate and the support frame, the supporting C-shaped steel plate and the load-bearing C-shaped steel plate, and the load-bearing C-shaped steel plate and the steel tie are all connected through self-tapping screws. The strength grade of the support frame, supporting C-shaped steel plate and steel tie is not lower than Q235.

[0013] The production principle of this utility model:

[0014] The truss-supported light steel-wood-concrete composite floor provided by the utility model is firstly poured with concrete on the wooden board (OSB board) during production, and stress-bearing steel bars and distribution steel bars are arranged inside the concrete; at the same time, the two sides of the wooden board are respectively connected to the top edges of the two angle steels by self-tapping screws; the side edges of the two angle steels are respectively connected to the webs of the two load-bearing C-shaped steel plates by self-tapping screws to ensure their stability.

[0015] Two load-bearing C-shaped steel plates are assembled on both sides of the composite floor slab, and the upper flanges and curling edges of the two load-bearing C-shaped steel plates are engaged with the cast-in-place concrete; the bottom of the wooden board is equipped with several support frames at a set distance in the longitudinal direction, and each support frame is connected with a supporting C-shaped steel plate by self-tapping screws. Each supporting C-shaped steel plate is in a herringbone shape, and the two bottom feet of each supporting C-shaped steel plate are connected to the load-bearing C-shaped steel plates on both sides by self-tapping screws. The two bottom feet of the supporting C-shaped steel plate are connected to the two load-bearing C-shaped steel plates at the connection of the load-bearing C-shaped steel plates by steel tie bands, and the support frame, supporting C-shaped steel plate, load-bearing C-shaped steel plate and steel tie band form a truss structure.

[0016] Beneficial effects of the utility model:

[0017] The truss-supported light steel-wood-concrete composite floor provided by the utility model adopts OSB wood board and load-bearing C-shaped steel plate to be connected by self-tapping screws, and the cast-in-place concrete is engaged with the flange of the load-bearing C-shaped steel plate. The three are tightly connected, the load-bearing C-shaped steel plate and the reinforced concrete are jointly stressed, a herringbone bidirectional support is arranged under the OSB wood board, and the lower flange of the load-bearing C-shaped steel plate is connected by a steel tie belt to reduce the mid-span deflection and prevent the load-bearing C-shaped steel plate from becoming unstable. While improving the bearing capacity, the amount of concrete is reduced and the dead weight of the floor is reduced; an OSB wood board isolation layer is arranged in the middle of the floor to give full play to the role of the OSB wood board, so that the composite floor has the performance of sound insulation and thermal insulation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the combined floor slab described in the utility model.

[0019] Figure 2 It is a schematic cross-sectional view of the combined floor slab described in the present utility model.

[0020] Figure 3 It is a side view of the combined floor described in the utility model.

[0021] Figure 4 This is a bottom view of the combined floor described in the utility model.

[0022] The markings in the above drawings are as follows:

[0023] 1. Wooden board 2. Concrete board 3. Angle steel 4. Load-bearing C-shaped steel plate

[0024] 5. Support C-shaped steel plate 6. Support frame 7. Steel tie belt 8. Strength steel bar

[0025] 9. Distribution of steel bars. DETAILED DESCRIPTION

[0026] See also Figures 1 to 4 As shown:

[0027] The utility model provides a truss-supported light steel-wood-concrete composite floor, which includes a wooden board 1, a concrete board 2, an angle steel 3, a load-bearing C-shaped steel board 4 and a supporting C-shaped steel board 5, wherein the wooden board 1 is assembled at the bottom of the concrete board 2, and the longitudinal angle steel 3 of the wooden board 1 is connected to both sides of the wooden board 1, the length of the angle steel 3 corresponds to the length of the wooden board 1, two load-bearing C-shaped steel boards 4 are respectively fixedly connected to the side edges of the angle steel 3, and the top ends of the two load-bearing C-shaped steel boards 4 are engaged with the concrete board 2 on the top surface of the wooden board 1, and a plurality of supporting frames 6 are assembled at the bottom of the wooden board 1, each supporting frame 6 is fixedly connected with a herringbone supporting C-shaped steel board 5, and two bottom feet of the supporting C-shaped steel board 5 are respectively fixedly connected to the two load-bearing C-shaped steel boards 4, and a steel tie belt 7 is assembled between the two load-bearing C-shaped steel boards 4 at the connection with the supporting C-shaped steel board 5, and the supporting frame 6, the supporting C-shaped steel board 5, the load-bearing C-shaped steel board 4 and the steel tie belt 7 form a truss structure.

[0028] The wooden board 1 is an OSB board, the thickness of the wooden board 1 is not less than 20 mm, and the wooden board 1 is connected to the top concrete board 2 by self-tapping screws.

[0029] The concrete slab 2 is a cast-in-place reinforced concrete slab. The concrete slab 1 is equipped with stress-bearing steel bars 8 and distribution steel bars 9. The stress-bearing steel bars 8 and distribution steel bars 9 are evenly distributed inside the concrete slab 2. The spacing between the stress-bearing steel bars 8 and the distribution steel bars 9 is not greater than 400 mm, and the thickness of the cast-in-place concrete is not less than 50 mm.

[0030] The length of the two load-bearing C-shaped steel plates 4 corresponds to the length of the angle steels 3 connected to the two sides of the wooden board 1. The width of the two sides of the angle steel 3 is not less than 30 mm, and the strength grade of the angle steel 3 is not lower than Q235.

[0031] The web width of the load-bearing C-shaped steel plate 4 is 200mm-300mm, the width of the top end of the load-bearing C-shaped steel plate 4 extending into the concrete slab 2 is not less than 40mm, the curling of the top end of the load-bearing C-shaped steel plate 4 penetrating into the concrete slab 2 is not less than 20mm, and the strength grade of the load-bearing C-shaped steel plate 4 is not lower than Q235.

[0032] The several support frames 6 at the bottom of the wooden board 1 are connected to the wooden board 1 through self-tapping screws, and the supporting C-shaped steel plate 5 and the support frame 6, the supporting C-shaped steel plate 5 and the load-bearing C-shaped steel plate 4, and the load-bearing C-shaped steel plate 4 and the steel tie 7 are all connected through self-tapping screws. The strength grade of the support frame 6, the supporting C-shaped steel plate 5 and the steel tie 7 is not lower than Q235.

[0033] The production principle of this utility model:

[0034] The truss-supported light steel-wood-concrete composite floor provided by the utility model is firstly poured with concrete on the wooden board 1 (OSB board) during production, and stress-bearing steel bars 8 and distribution steel bars 9 are arranged inside the concrete; at the same time, the two sides of the wooden board 1 are respectively connected to the top edges of the two angle steels 3 by self-tapping screws; the side edges of the two angle steels 3 are respectively connected to the webs of the two load-bearing C-shaped steel plates 4 by self-tapping screws to ensure their stability.

[0035] Two load-bearing C-shaped steel plates 4 are assembled on both sides of the composite floor, and the upper flanges and curling edges of the two load-bearing C-shaped steel plates 4 are engaged with the cast-in-place concrete; the bottom of the wooden board 1 is assembled with several support frames 6 at a set distance in the longitudinal direction, and each support frame 6 is connected with a supporting C-shaped steel plate 5 by self-tapping screws, and each supporting C-shaped steel plate 5 is in a herringbone shape, and the two bottom feet of each supporting C-shaped steel plate 5 are connected to the load-bearing C-shaped steel plates 4 on both sides by self-tapping screws, and the two bottom feet of the supporting C-shaped steel plates 5 are connected to the two load-bearing C-shaped steel plates 4 at the connection of the load-bearing C-shaped steel plates 4 by steel tie bands 7, and the support frames 6, the supporting C-shaped steel plates 5, the load-bearing C-shaped steel plates 4 and the steel tie bands 7 form a truss structure.

Claims

1. A truss-supported light steel-wood-concrete composite floor, characterized in that: It includes wooden boards, concrete boards, angle steels, load-bearing C-shaped steel plates and supporting C-shaped steel plates, wherein the wooden boards are assembled on the bottom of the concrete boards, the longitudinal angle steels of the wooden boards are connected to the two sides of the wooden boards, the length of the angle steels corresponds to the length of the wooden boards, two load-bearing C-shaped steel plates are respectively fixed on the side edges of the angle steels, the top ends of the two load-bearing C-shaped steel plates are engaged with the concrete boards on the top surfaces of the wooden boards, several support frames are assembled on the bottom of the wooden boards, each support frame is fixed with a herringbone supporting C-shaped steel plate, two bottom feet of the supporting C-shaped steel plate are respectively fixed in the two load-bearing C-shaped steel plates, a steel tie belt is assembled between the two load-bearing C-shaped steel plates at the connection with the supporting C-shaped steel plates, and the support frames, supporting C-shaped steel plates, load-bearing C-shaped steel plates and steel tie belts form a truss structure.

2. The truss-supported light steel-wood-concrete composite floor according to claim 1, characterized in that: The wooden board is an OSB board, the thickness of the wooden board is not less than 20 mm, and the wooden board is connected to the top concrete board by self-tapping screws.

3. The truss-supported light steel-wood-concrete composite floor according to claim 1, characterized in that: The concrete slab is a cast-in-place reinforced concrete slab, in which stress-bearing steel bars and distribution steel bars are assembled. The stress-bearing steel bars and distribution steel bars are evenly distributed inside the concrete slab. The spacing between the stress-bearing steel bars and the distribution steel bars is not greater than 400mm, and the thickness of the cast-in-place concrete is not less than 50mm.

4. The truss-supported light steel-wood-concrete composite floor according to claim 1, characterized in that: The lengths of the two load-bearing C-shaped steel plates correspond to the lengths of the angle steels connected to the two sides of the wooden board. The widths of the two sides of the angle steels are not less than 30 mm, and the strength grade of the angle steels is not less than Q235.

5. A truss-supported light steel-wood-concrete composite floor according to claim 1 or 4, characterized in that: The web width of the load-bearing C-shaped steel plate is 200mm-300mm, the width of the top of the load-bearing C-shaped steel plate extending into the concrete slab is not less than 40mm, the curling of the top of the load-bearing C-shaped steel plate penetrating into the concrete slab is not less than 20mm, and the strength grade of the load-bearing C-shaped steel plate is not lower than Q235.

6. The truss-supported light steel-wood-concrete composite floor according to claim 1, characterized in that: The several support frames at the bottom of the wooden board are connected to the wooden board by self-tapping screws, and the supporting C-shaped steel plate and the support frame, the supporting C-shaped steel plate and the load-bearing C-shaped steel plate, and the load-bearing C-shaped steel plate and the steel pull strap are all connected by self-tapping screws. The strength grade of the support frame, the supporting C-shaped steel plate and the steel pull strap is not lower than Q235.

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