Net rack laminated wall connecting structure

Abstract

The utility model belongs to the technical field of buildings, and particularly relates to a net rack laminated wall connecting structure which comprises an outer side concrete layer, an inner side concrete layer and a steel bar net rack clamped between the outer side concrete layer and the inner side concrete layer. The fireproof layer and the outer side concrete layer are fixedly bonded, a connecting assembly is further arranged between the fireproof layer and the outer side concrete layer, one side of the connecting assembly is inserted into the fireproof layer, and the other side of the connecting assembly is embedded in the outer side concrete layer and connected with the steel bar net rack. According to the utility model, the connecting assembly is additionally arranged, and double fixation of adhesion and the connecting assembly is adopted, so that the connection firmness between the fireproof layer and the laminated wall is ensured, and the fireproof layer is prevented from falling off.

Description

Technical Field

[0001] The utility model belongs to the technical field of construction, and particularly relates to a grid composite wall connection structure. Background Art

[0002] The composite wall is a wall built with composite slabs. The composite slabs are prefabricated components formed by concrete wall panels on both sides and a steel grid clamped between the concrete wall panels on both sides. The cavity between the concrete wall panels on both sides is formed as a cast-in-place cavity. During the production process of the composite slab, the steel grid is cast into one piece with the concrete wall panels on both sides. The composite slab has the advantages of both prefabricated and cast-in-place floor slabs.

[0003] Some buildings have high fire-resistance requirements, so they install a fireproofing layer on the outside of the composite wall. Currently, this layer is typically installed with a base plate at the outside of the composite wall, then the fireproofing board is fitted with the base plate and screwed to the composite wall. However, this method results in poor connectivity between the fireproofing layer and the composite wall, creating a risk of the fireproofing layer falling off. Utility Model Content

[0004] In order to solve the problems existing in the above-mentioned prior art, the utility model provides a grid composite wall connection structure, which ensures the firmness of the connection between the fireproof layer and the composite wall by adding a connection component and adopting dual fixation of adhesion and connection components, thereby preventing the fireproof layer from falling off.

[0005] The specific technical solution adopted in this utility model is:

[0006] A grid composite wall connection structure includes an outer concrete layer, an inner concrete layer, and a steel grid clamped between the outer concrete layer and the inner concrete layer. A fireproof layer is further provided on the outer side of the outer concrete layer, and the fireproof layer is bonded and fixed to the outer concrete layer. A connecting component is also provided between the fireproof layer and the outer concrete layer. One side of the connecting component is inserted into the fireproof layer, and the other side of the connecting component is buried in the outer concrete layer and connected to the steel grid.

[0007] The connection components are arranged in a rectangular array in multiple groups, and each group of connection components includes at least two web reinforcements that cross in an X shape. The side of the steel grid close to the outer concrete layer is tied and connected to the X-shaped intersection of the web reinforcements.

[0008] The connection assembly also includes a limit spring, one end of which is hooked and connected to the horizontal steel bar of the steel mesh, and the other end of which is drilled into the fireproof layer and fixedly connected to the fireproof layer.

[0009] One end of the connecting assembly is located in the fireproof layer and away from the outer edge of the fireproof layer, and the other end of the connecting assembly is located in the outer concrete layer and away from the inner edge of the outer concrete layer.

[0010] The side of the fireproof layer is also provided with a concave-convex sealing structure, and adjacent fireproof layers are spliced ​​and matched with the help of the sealing structure.

[0011] The beneficial effects of the utility model are:

[0012] This utility model incorporates a connecting assembly that ensures a secure connection between the fireproof layer and the composite wall through dual fixation through adhesion and the connecting assembly. Because the two sides of the connecting assembly are located in the fireproof layer and the outer concrete layer, respectively, the connecting assembly can pull the fireproof layer. At the same time, due to the inherent adhesive properties of concrete, the outer concrete layer forms a bond with the fireproof layer during pouring, thus preventing the fireproof layer from falling off. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural diagram of the utility model;

[0014] Figure 2 It is a partially enlarged schematic diagram of the utility model;

[0015] In the attached drawings, 1. outer concrete layer, 2. inner concrete layer, 3. steel grid, 4. fireproof layer, 5. web reinforcement, 6. limit spring, 7. sealing structure. DETAILED DESCRIPTION

[0016] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:

[0017] Specific embodiments, such as Figure 1-2 As shown, the utility model provides a grid composite wall connection structure, including an outer concrete layer 1, an inner concrete layer 2 and a steel grid 3 clamped between the outer concrete layer 1 and the inner concrete layer 2. A fireproof layer 4 is further provided on the outer side of the outer concrete layer 1. The fireproof layer 4 is bonded and fixed to the outer concrete layer 1. A connecting component is also provided between the fireproof layer 4 and the outer concrete layer 1. One side of the connecting component is inserted into the fireproof layer 4, and the other side of the connecting component is buried in the outer concrete layer 1 and connected to the steel grid 3.

[0018] Some buildings have high fireproofing requirements, so a fireproof layer 4 is laid on the outside of the composite wall. Currently, when installing the fireproof layer 4 on the composite wall, a base is usually installed on the bottom of the outer side of the composite wall, and then the fireproof board is matched with the base and fixed to the composite wall with screws. However, this fixing method results in poor connection between the fireproof layer 4 and the composite wall, which is prone to the risk of the fireproof layer 4 falling off.

[0019] Therefore, the present invention provides a connecting assembly that ensures the secure connection between the fireproof layer 4 and the composite wall through dual fixation by adhesion and the connecting assembly. Since the two sides of the connecting assembly are located in the fireproof layer 4 and the outer concrete layer 1 respectively, the connecting assembly can play a pulling role on the fireproof layer 4. At the same time, due to the adhesive properties of concrete itself, the outer concrete layer 1 is bonded to the fireproof layer 4 during pouring, thereby preventing the fireproof layer 4 from falling off.

[0020] The connection components are arranged in a rectangular array in multiple groups, and each group of connection components includes at least two X-shaped cross-ribbons. The side of the steel grid 3 close to the outer concrete layer 1 is tied and connected with the X-shaped intersection of the web reinforcement 5. The two groups of web reinforcements are in an X-shaped cross structure, which can better fix the fireproof layer 4 and the outer concrete layer 1. The intersection of the web reinforcement of the connection component is located in the outer concrete layer 1. On the one hand, it is convenient to tie the connection component with the steel grid 3 bracket. On the other hand, the connection component can also provide structural strength for the outer concrete layer 1, thereby improving the overall strength of the composite wall.

[0021] The connecting assembly also includes a limit spring 6, one end of the limit spring 6 is hooked and connected to the horizontal steel bar of the steel mesh 3, and the other end of the limit spring 6 is drilled into the fireproof layer 4 and fixedly connected to the fireproof layer 4. The limit spring 6 has a spiral structure. First, the end of the limit spring 6 is hooked with the horizontal steel bar of the steel mesh 3, and then the limit spring 6 is rotated. The end of the limit spring 6 will continue to move toward the fireproof layer 4 until the end of the limit spring 6 is completely drilled into the fireproof layer 4. At this time, the steel mesh 3 and the fireproof layer 4 are connected with the help of the limit spring 6. On the one hand, the limit spring 6 can play a connecting role, and on the other hand, the limit spring 6 can also play a buffering and limiting role to hinder the relative movement between the fireproof layer 4 and the steel mesh 3.

[0022] One end of the connecting component is located inside the fireproof layer 4 and away from the outer edge of the fireproof layer 4, and the other end of the connecting component is located inside the outer concrete layer 1 and away from the inner edge of the outer concrete layer 1. The connecting component in the present invention should avoid being closely attached to or penetrating the edges of the fireproof layer 4 and the outer concrete layer 1 to ensure that the surface of the fireproof layer 4 is smooth and reduce the generation of cracks.

[0023] The side of the fireproof layer 4 is also provided with a concave-convex sealing structure 7. Adjacent fireproof layers 4 are spliced ​​and matched with the help of the sealing structure 7. Sealant needs to be applied between adjacent fireproof layers 4. The concave-convex sealing structure 7 can increase the application area of ​​the sealant and better restrain the sealant to avoid the sealant clamped by the fireproof layers 4 on both sides from being squeezed around, resulting in poor adhesion between adjacent fireproof layers 4.

Claims

1. A grid composite wall connection structure, comprising an outer concrete layer (1), an inner concrete layer (2), and a steel grid (3) sandwiched between the outer concrete layer (1) and the inner concrete layer (2), characterized in that: A fireproof layer (4) is further provided on the outside of the outer concrete layer (1), the fireproof layer (4) is bonded and fixed to the outer concrete layer (1), and a connecting component is further provided between the fireproof layer (4) and the outer concrete layer (1), one side of the connecting component is inserted into the fireproof layer (4), and the other side of the connecting component is buried in the outer concrete layer (1) and connected to the steel mesh (3).

2. A grid composite wall connection structure according to claim 1, characterized in that: The connection components are arranged in a rectangular array in multiple groups, each group of connection components includes at least two web reinforcements (5) that cross in an X-shape, and the side of the steel mesh (3) close to the outer concrete layer (1) is tied and connected to the X-shaped intersection of the web reinforcements (5).

3. The grid composite wall connection structure according to claim 1, characterized in that: The connection assembly further comprises a limit spring (6), one end of which is hooked and connected to the horizontal steel bars of the steel mesh (3), and the other end of which is drilled into the fireproof layer (4) and fixedly connected to the fireproof layer (4).

4. The grid composite wall connection structure according to claim 1, characterized in that: One end of the connection assembly is located in the fireproof layer (4) and away from the outer edge of the fireproof layer (4), and the other end of the connection assembly is located in the outer concrete layer (1) and away from the inner edge of the outer concrete layer (1).

5. The grid composite wall connection structure according to claim 1, characterized in that: The side of the fireproof layer (4) is also provided with a concave-convex sealing structure (7), and adjacent fireproof layers (4) are spliced ​​and matched with the help of the sealing structure (7).

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