Self-heat-preservation and sound-insulation laminated slab

Abstract

The utility model discloses a self-heat-preservation and sound-insulation laminated slab, and relates to the technical field of laminated slabs. Comprising a prefabricated bottom plate concrete layer, a cast-in-place concrete layer, a heat preservation and sound insulation layer and a connecting piece, a steel bar mesh is arranged in the prefabricated bottom plate concrete layer, the ends of steel bars on the two sides of the steel bar mesh in the length direction are subjected to upward bending and end lifting treatment, and the ends of the upward bending and lifting ends are lower than the upper surface of the prefabricated bottom plate concrete layer; the reinforcing mesh is bent upwards along the ends of the reinforcing steel bars on the two sides in the width direction and is bent upwards to form hooks, and the hooks protrude out of the prefabricated bottom plate concrete layer; the connecting piece comprises a connecting body and a connecting rod, the connecting body comprises an upper connecting rod, a lower connecting rod and a middle connecting rod, the lower connecting rod penetrates through a reserved hook on one side of the reinforcing mesh, the lower connecting rod and the upper connecting rod are arranged in parallel, the middle connecting rod is arranged in a middle gap, the middle connecting rod is fixedly connected with the upper connecting rod and the lower connecting rod to form the connecting body, and the connecting body on the two sides of the reinforcing mesh wraps a heat preservation and sound insulation layer. The two upper connecting rods are connected through a connecting rod, and concrete is poured on the heat-preservation and sound-insulation layer and the connecting piece to form a cast-in-place concrete layer. The heat preservation and sound insulation performance of the laminated slab is effectively improved, construction is simple, meanwhile, the self weight of the laminated slab is reduced, and concrete is saved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of laminated slab, especially to a self-thermal insulation sound insulation laminated slab. BACKGROUND

[0002] The laminated slab is a fabricated integral floor slab composed of a prefabricated slab and a cast-in-situ concrete layer, and is widely used in building of floor structure, residential structure and thick plate structure. With the development of the times, people have higher requirements for the thermal insulation and sound insulation of buildings. The traditional laminated slab sets a sound insulation and thermal insulation layer between the steel bar truss structure prefabricated layer and the cast-in-situ concrete layer, and connects the three together through metal connecting pieces. The sound insulation and thermal insulation board is easily damaged during decoration by the owner, or the metal connecting pieces penetrate the sound insulation and thermal insulation board, which is easy to produce cold / heat bridge and sound bridge, resulting in poor thermal insulation and sound insulation effect. SUMMARY

[0003] The utility model provides a self-thermal insulation sound insulation laminated slab, and the thermal insulation and sound insulation effect and strength of the laminated slab are enhanced, cold / heat bridge and sound bridge are avoided, and the requirements of the laminated slab for thermal insulation and sound insulation performance and strength are met.

[0004] The technical scheme of the utility model is a self-thermal insulation sound insulation laminated slab, which comprises a prefabricated bottom plate concrete layer, a cast-in-situ concrete layer, a thermal insulation and sound insulation layer and a connecting piece. A steel mesh is arranged in the prefabricated bottom plate concrete layer. The steel mesh is bent upwards at the ends of the steel bars on both sides in the length direction, and the ends of the bent upwards are lower than the upper surface of the prefabricated bottom plate concrete layer. The ends of the steel bars on both sides of the steel mesh are bent upwards and folded into hooks, and the hooks protrude out of the prefabricated bottom plate concrete layer. The connecting piece comprises a connecting body and a connecting rod. The connecting body comprises an upper connecting rod, a lower connecting rod and a middle connecting rod. The lower connecting rod passes through the hooks on one side of the steel mesh, and the lower connecting rod is arranged in parallel with the upper connecting rod. The middle connecting rod is arranged in the middle gap, and the middle connecting rod is fixedly connected with the upper and lower connecting rods to form the connecting body. The thermal insulation and sound insulation layer is wrapped by the connecting bodies on both sides of the steel mesh, the two upper connecting rods are connected by the connecting rod, and the thermal insulation and sound insulation layer is poured with concrete on the upper surface of the connecting piece to form the cast-in-situ concrete layer.

[0005] Further, the height of the middle connecting rod is higher than the thickness of the thermal insulation and sound insulation layer.

[0006] Further, the middle connecting rod and the upper and lower connecting rods are connected by rivets.

[0007] Further, the thermal insulation and sound insulation layer is a composite board formed by a thermal insulation material and a sound insulation material. The thermal insulation material is selected from perlite thermal insulation material, and the sound insulation material is selected from polyethylene.

[0008] Further, the prefabricated bottom plate concrete layer and the cast-in-situ concrete layer are formed by pouring tailing lightweight aggregate concrete.

[0009] Further, the upper link rod and the lower link rod are made of stainless steel material, and the middle link rod is made of fiber reinforced composite material FRP material.

[0010] Further, the anti-cracking mortar is laid on the upper and lower surfaces of the heat preservation and sound insulation layer, and the anti-cracking mortar is selected from silicate cement.

[0011] Further, the steel mesh is selected from prestressed steel, the steel mesh is bound with a steel truss on the upper surface, the steel truss is arranged along the width direction of the steel mesh, and the cross section of the steel truss is triangular.

[0012] Further, the steel truss is provided with four steel bars.

[0013] Further, the upper link rod and the lower link rod are made of stainless steel material, and the middle link rod is made of fiber reinforced composite material FRP material.

[0014] The utility model discloses the beneficial effect is:

[0015] The utility model discloses a heat preservation and sound insulation layer is arranged between the prefabricated bottom plate concrete layer and cast-in-situ concrete layer, the prefabricated bottom plate concrete layer, heat preservation and sound insulation layer and cast-in-situ concrete layer are connected closely through the connecting piece, and the cast-in-situ concrete layer is formed on the heat preservation and sound insulation layer and the connecting piece, the integrality and compactness of the composite floor are improved, the heat preservation and sound insulation performance of the composite floor is effectively improved, the cold (heat) bridge or sound bridge phenomenon is avoided, and construction is simple, and secondary construction procedure can be reduced.

[0016] The connecting piece middle link rod, connecting rod and connecting sleeve are all made of fiber reinforced composite material FRP material, and the cold (heat) bridge or sound bridge phenomenon is avoided.

[0017] The utility model discloses the anti-cracking mortar is laid on the upper and lower surfaces of the heat preservation layer, prevents the outer wall heat preservation layer or inner heat preservation layer and cracks, improves the stability and durability of wall surface.

[0018] The connecting rod and the connecting barrel are arranged, and are used for reducing the misplacement phenomenon of the composite floor when the subsequent composite floor is spliced.

[0019] The prestressed steel is selected for the steel bar, and the stiffness and crack resistance of the composite floor are enhanced.

[0020] The steel bar end of the steel mesh is bent upwards and hung, the steel bar is reduced, the heat preservation and sound insulation performance of the composite floor is improved, and the collision problem of the protruding steel bar in the installation process is avoided. DRAWINGS

[0021] Fig. 1The utility model relates to a self-heat preservation sound insulation laminated board internal structure schematic view.

[0022] Fig. 2 The utility model relates to a self-heat preservation sound insulation laminated board heat preservation sound insulation layer schematic view.

[0023] Fig. 3 The utility model relates to a self-heat preservation sound insulation laminated board prefabricated bottom plate concrete layer schematic view.

[0024] Among them: 1, prefabricated bottom plate concrete layer, 2, cast-in-place concrete layer, 3, heat preservation sound insulation layer, 4, connecting piece, 5, upper connecting rod, 6, lower connecting rod, 7, middle connecting rod, 8, connecting rod, 9, connecting sleeve, 10, connecting body, 11, steel mesh, 12, hook, 13, connecting rod, 14, steel truss. Specific implementation

[0025] The utility model provides a self-heat preservation sound insulation laminated board, structure as Figs. 1-3 As shown in the drawing, it includes prefabricated bottom plate concrete layer 1, cast-in-place concrete layer 2, heat preservation sound insulation layer 3 and connecting piece 4, the prefabricated bottom plate concrete layer 1 is provided with steel mesh 11, the steel mesh 11 selects prestressed steel, enhances the rigidity and crack resistance of laminated board whole, the steel mesh 11 upper layer is bound steel truss 14, the steel truss 14 is provided with 4 along the width direction of steel mesh 11, and the cross section of steel truss 14 is triangle, and the stability is good, strengthens the overall performance of laminated board, the length direction both sides steel end of steel mesh 11 is handled to be hung up by bending upward, and the end of the steel end that is hung up by bending upward is lower than the upper surface of prefabricated bottom plate concrete layer 1, the length direction both sides steel end of steel mesh 11 is handled to be hung up by bending upward and is folded into hook 12 upwards, and the hook 12 projects outside prefabricated bottom plate concrete layer 1, so as to reduce the reinforcement, improve the heat preservation sound insulation performance of laminated board, avoid the collision problem of the protruding steel in the installation process.

[0026] The heat preservation sound insulation layer 3 is the composite board formed by heat preservation material and sound insulation material, the heat preservation material selects perlite heat preservation material, the sound insulation material selects polyethylene, reaches the effective heat preservation sound insulation effect.

[0027] The connecting piece 4 comprises a connecting body 10 and a connecting rod 13, the connecting body 10 comprises an upper connecting rod 5, a lower connecting rod 6 and a middle connecting rod 7, the lower connecting rod 6 passes through the steel mesh sheet side hook 12, the lower connecting rod 6 is arranged in parallel with the upper connecting rod 5, the middle connecting rod 7 is arranged in the middle gap, the upper connecting rod 5 and the lower connecting rod 6 are made of stainless steel material, the middle connecting rod 7 is made of fiber reinforced composite material FRP material, the cold / thermal bridge or sound bridge phenomenon is avoided, the middle connecting rod 7 is rivet anchor connected with the upper and lower connecting rods 5 and 6 to form the connecting body 10, the steel mesh sheet 11 two sides connecting body 10 wraps the heat preservation and sound insulation layer 3, the two upper connecting rods 5 are connected through the connecting rod 13, the heat preservation and sound insulation layer 3 together with the connecting piece 4 upper cast concrete forms the cast-in-place concrete layer 2, the connecting piece 4 closely connects the prefabricated bottom plate concrete layer 1, the cast-in-place concrete layer 2 and the heat preservation and sound insulation layer 3, and the integrity and compactness of the composite floor slab are improved.

[0028] The heat preservation and sound insulation layer 3 upper and lower surfaces are paved with anti-cracking mortar, the anti-cracking mortar is selected from silicate cement, the anti-cracking mortar prevents the outer wall heat preservation layer or the inner heat preservation layer from cracking, and the stability and durability of the wall surface are improved.

[0029] The prefabricated bottom plate concrete layer 1 and the cast-in-place concrete layer 2 are both formed by pouring tailing lightweight aggregate concrete, so that the heat preservation and sound insulation performance of the composite floor slab is improved.

[0030] The upper connecting rod 5 and the lower connecting rod 6 are respectively provided with a connecting sleeve 9 and a connecting rod 8 at two ends, the connecting sleeve 9 and the connecting rod 8 are matched, the connecting sleeve 9 and the connecting rod 8 are made of fiber reinforced composite material FRP material, and are used for reducing the composite floor slab dislocation phenomenon generated when the subsequent composite floor slab is spliced and further avoiding the cold / thermal bridge and sound bridge phenomenon.

[0031] The steel bar end upward bending hanging end refers to a structure formed by bending the end of the steel bar upward at a specific position. It is commonly seen in structures such as beams and slabs. From the perspective of structure, the end of the steel bar is bent upward to form a hanging end. In structures such as beams and slabs, this treatment is usually carried out at a specific position according to design requirements. The angle and length of the bending are generally strictly specified to ensure that the structural stress requirements are met. In terms of function, first, it enhances the anchoring performance of the steel bar and the concrete. By bending upward, the anchoring length and contact area of the steel bar in the concrete are increased, and the adhesion between the two is improved, so that the steel bar can play a more stable role in the structure. Second, it can resist the negative bending moment at a specific position. The steel bar of the upward bending hanging end can bear the tensile force generated by the negative bending moment, preventing the concrete from cracking and ensuring the safety and durability of the structure. Third, in the construction process, the steel bar of the upward bending hanging end is convenient for positioning and fixing, facilitating the pouring and vibrating of the concrete, and is beneficial to improving the construction efficiency and quality. The steel bar upward bending hanging end treatment is an important structural measure, which plays a key role in the stability and reliability of building structures.

[0032] In addition to the above embodiments, the utility model can have other implementation manners; all technical schemes formed by using equivalent replacement or equivalent transformation fall within the protection scope required by the utility model.

Claims

1. A self-insulating soundproof laminated board, characterized by, The utility model relates to a prefabricated bottom plate concrete layer (1), cast-in-situ concrete layer (2), heat preservation and sound insulation layer (3), connecting piece (4), the prefabricated bottom plate concrete layer (1) is provided with steel mesh (11) in, the steel mesh (11) length direction both sides steel end are bent and hang the end processing, the bent and hang the end of end is lower than the prefabricated bottom plate concrete layer (1) upper surface, the steel mesh (11) width direction both sides steel end are bent and hang the end processing and are folded into a hook (12) upward, the hook (12) protrudes outside the prefabricated bottom plate concrete layer (1), the connecting piece (4) includes connecting body (10) and connecting rod (13), and the connecting body (10) includes upper link (5), lower link (6), middle link (7), and the lower link (6) passes through the hook (12) of one side of steel mesh, and the lower link (6) is arranged in parallel with the upper link (5), and the middle link (7) is arranged in the middle gap, and the middle link (7) is fixedly connected with the upper link (5) and the lower link (6) to form the connecting body (10), and the steel mesh (11) both sides connecting body (10) are wrapped heat preservation and sound insulation layer (3), and two upper links (5) are connected through connecting rod (13), and heat preservation and sound insulation layer (3) is together with the upper surface of connecting piece (4) and is poured concrete to form cast-in-situ concrete layer (2).

2. The self-insulation and sound-proof laminated board according to claim 1, characterized in that, The height of the middle link (7) is set to be higher than the thickness of the heat preservation and sound insulation layer (3).

3. The self-insulation and sound-proof laminated board according to claim 1, characterized in that, The middle link (7) is connected with the upper link (5) and the lower link (6) by rivet anchoring.

4. The self-insulation and sound-proof laminated board according to claim 1, characterized in that, The heat preservation and sound insulation layer (3) is a composite board formed by a heat preservation material and a sound insulation material, the heat preservation material is selected from perlite heat preservation material, and the sound insulation material is selected from polyethylene.

5. The self-insulating soundproof laminated board according to claim 1, characterized in that, The prefabricated bottom plate concrete layer (1) and the cast-in-situ concrete layer (2) are formed by pouring tailing light aggregate concrete.

6. The self-insulating soundproof laminated board according to claim 1, characterized in that, The upper link (5) and the lower link (6) are made of stainless steel material, and the middle link (7) is made of fiber reinforced composite material FRP material.

7. The self-insulating soundproof laminated board according to claim 1, characterized in that, Anti-cracking mortar is laid on the upper surface and the lower surface of the heat preservation and sound insulation layer (3), and the anti-cracking mortar is selected from Portland cement.

8. The self-insulating soundproof laminated board according to claim 1, characterized in that, The steel mesh (11) is selected from prestressed steel, and a steel truss (14) is bound on the upper layer of the steel mesh (11), the steel truss (14) is arranged along the width direction of the steel mesh, and the cross section of the steel truss (14) is triangular.

9. The self-insulating soundproof laminated board according to claim 1, characterized in that, The steel truss (14) is provided with four steel trusses.

10. The self-insulating soundproof laminated board according to claim 1, characterized in that, The upper link (5) and the lower link (6) are respectively provided with a connecting sleeve (9) and a connecting rod (8) at both ends, the connecting sleeve (9) and the connecting rod (8) are matched, and the connecting sleeve (9) and the connecting rod (8) are made of fiber reinforced composite material FRP material.

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