Reinforcing structure for intersection of brick longitudinal wall and prefabricated hollow roof panel

Abstract

The reinforcing structure for the intersection of the brick longitudinal wall and the prefabricated hollow roof panel comprises fixing ribs and an existing wall body, an existing top plate is erected on the top of the existing wall body, twisted steel bars are planted in a hollow hole channel of the existing top plate in a bar planting mode, the fixing ribs are arranged at the bottoms of the twisted steel bars, and constructional steel bars are bound on the surface of the existing wall body. Wall body tie bars are arranged every 1200mm, the tie bars are arranged in a plum blossom shape, and the bottoms of fixing bars are connected with constructional steel bars through steel bars in a binding lap joint mode; the hollow hole channels in the edge of the hollow roof board are filled with the grouting materials, then the phi 12 thread reinforcing ribs are embedded in a steel bar embedding mode and are stably connected with the roof board, then the bottoms of the reinforcing ribs are connected with constructional steel bars in a binding mode, and connection is firm. The existing wall reinforcing part and the existing top plate are tightly connected into a whole, and the integrity and stability of the reinforcing structure are guaranteed. Meanwhile, the construction amount is small, the construction speed is high, simplicity and rapidness are achieved, and manufacturing cost is low.

Description

Technical Field

[0001] The utility model relates to the technical field of building engineering construction, in particular to a reinforcing structure at the intersection of a brick-built longitudinal wall and a prefabricated hollow roof panel. Background Art

[0002] With the rapid development of social modernization, the brick wall structures of many old houses are affected by various factors such as the natural environment and the use environment, showing defects such as insufficient bearing capacity and insufficient shear resistance to varying degrees. They are difficult to meet the needs of current production and living conditions and require wall reinforcement.

[0003] However, the existing technology for wall reinforcement generally involves opening holes and destroying the original brick load-bearing wall structure. In this case, the stability of the load-bearing wall cannot be guaranteed, and the top reinforcement steel bars cannot be firmly fixed. The tying and fixing of the wall reinforcement steel bars has certain limitations. Utility Model Content

[0004] The utility model aims to provide a reinforcement structure at the intersection of a brick-built longitudinal wall and a prefabricated hollow roof panel, so as to solve the problems raised in the above-mentioned background technology.

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

[0006] A reinforcement structure at the intersection of a brick-built longitudinal wall and a prefabricated hollow roof panel comprises an existing top plate, fixing bars and an existing wall body, wherein the existing top plate is arranged on the top of the existing wall body, the hollow holes at the edges of the existing top plate are filled with grouting material, threaded steel bars are implanted in the hollow holes of the existing top plate by means of planting bars, the bottoms of several threaded steel bars are provided with fixing bars, the bottoms of the fixing bars pass through the existing top plate and contact the ground, structural steel bars are tied to the surface of the existing wall body, the structural steel bars comprise tie bars and reinforcing steel meshes, several reinforcing steel meshes are cross-arranged by several 6mm diameter steel bars, the transverse spacing and longitudinal spacing between several steel bars are 300mm, several reinforcing steel meshes are connected from the ground to the existing top plate by 6mm diameter steel bars every 300mm, tie bars are arranged every 1200mm in the horizontal direction between several reinforcing steel meshes, several tie bars are arranged in a plum blossom shape, the bottoms of the fixing bars are connected to the structural steel bars by means of steel bars by means of binding and overlapping, and sprayed concrete is arranged on the surface of the existing wall body.

[0007] Preferably, the existing wall is a brick wall, the thickness of the existing wall is 240 mm, and the brick strength grade is M10.

[0008] Preferably, the shotcrete is C25 fine stone concrete.

[0009] Preferably, the existing top plate is a prefabricated hollow top plate, and the hollow direction in the middle of the existing top plate is parallel to the existing wall.

[0010] Preferably, the threaded steel bars are fixed to the hollow channels of the existing top plate by using anchoring glue, and the spacing between several threaded steel bars is 1200 mm.

[0011] Preferably, the fixed ribs and the threaded steel bars are an integral whole, and the diameters of the fixed ribs and the threaded steel bars are 12 mm.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The utility model uses grouting material to fill the hollow channel at the edge of the hollow roof panel, and then uses the planting method to implant φ12 threaded reinforcement bars to firmly connect with the top plate. Then the bottom of the reinforcement bar is tied and connected with the structural steel bar, and the connection is firm. The existing wall reinforcement part is tightly connected with the existing top plate as a whole to ensure the integrity and stability of the reinforced structure. At the same time, the utility model has a small amount of engineering, fast construction speed, simple and quick, and low cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 It is a schematic diagram of the overall cross-sectional structure of the utility model.

[0016] In the figure: 1. Existing top plate; 2. Grouting material; 3. Fixing bars; 4. Tie bars; 5. Existing wall; 6. Reinforcement steel mesh; 7. Threaded steel bars; 8. Shotcrete. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] In the description of the present invention, it should be noted that the terms "vertical", "up", "down", "horizontal", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0019] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0020] See also Figure 1-2 , the utility model provides a technical solution:

[0021] A reinforcement structure at the intersection of a brick longitudinal wall and a prefabricated hollow roof panel, comprising an existing top plate 1, fixing bars 3, and an existing wall 5. The existing top plate 1 is set on the top of the existing wall 5, and the hollow channel at the edge of the existing top plate 1 is filled with grouting material 2. Threaded steel bars 7 are implanted in the hollow channel of the existing top plate 1 by using a bar embedding method. The bottom of a plurality of threaded steel bars 7 is provided with fixing bars 3, and the bottom of the fixing bars 3 passes through the existing top plate 1 and contacts the ground. The surface of the existing wall 5 is tied with structural steel bars, and the structural steel bars include tie bars 4 and a reinforcing steel mesh 6. If A plurality of reinforcing steel meshes 6 are cross-arranged by a plurality of 6mm diameter steel bars, and the horizontal and vertical spacings between the plurality of steel bars are 300mm. The plurality of reinforcing steel meshes 6 are connected to the existing top plate 1 by 6mm diameter steel bars every 300mm. Tie bars 4 are arranged every 1200mm horizontally and vertically between the plurality of reinforcing steel meshes 6. The plurality of tie bars 4 are arranged in a plum blossom shape. The bottom of the fixed bar 3 is connected to the structural steel bar by steel bars by binding and overlapping. Sprayed concrete 8 is arranged on the surface of the existing wall 5.

[0022] Furthermore, the existing wall 5 is a brick wall, the thickness of the existing wall 5 is 240 mm, and the brick strength grade is M10. It needs to be reinforced due to insufficient bearing capacity.

[0023] Specifically, the grouting material 2 is a fluid material with early strength, high strength, no shrinkage and slight expansion properties. It is poured into the hollow channel of the existing top plate 1 where the rebar is implanted, filling the channel, tightly combining with the threaded steel bar 7, and firmly fixed on the top of the threaded steel bar 7.

[0024] Furthermore, the shotcrete 8 is C25 fine stone concrete, which is sprayed onto the wall surface with steel bars tied thereto by a sprayer, with a thickness of not less than 60 mm, and is used to reinforce the existing wall 5 .

[0025] Furthermore, the existing top plate 1 is a prefabricated hollow top plate, and the hollow direction in the middle of the existing top plate 1 is parallel to the existing wall 5 .

[0026] Furthermore, the threaded steel bars 7 are fixed to the hollow channel of the existing top plate 1 by using a reinforcing bar glue, and the spacing between the threaded steel bars 7 is 1200 mm.

[0027] Furthermore, the fixing rib 3 and the threaded steel bar 7 are a whole, and the diameter of the fixing rib 3 and the threaded steel bar 7 is 12 mm.

[0028] Working principle: The existing wall 5 is a brick wall with a wall thickness of 240mm and a brick strength grade of M10. It needs to be reinforced due to insufficient bearing capacity. The existing top plate 1 is a prefabricated hollow top plate, which is a roof plate erected on the top of the wall, and the middle hollow direction is parallel to the wall.

[0029] First, the structural reinforcement of the wall is tied. The structural reinforcement is to reinforce the existing wall 5 and add reinforcement. φ6@300 spot-welded steel mesh is used. Wall tie bars 4 are set every 1200mm, and the tie bars 4 are arranged in a plum blossom shape.

[0030] The next step is to construct grouting material 2. The grouting material is a fluid material with early strength, high strength, no shrinkage and slight expansion properties. A small hole is drilled on the top of the floor slab, and then the grouting material is injected into the hollow channel of the existing top plate corresponding to the edge of the existing wall, filling the channel to ensure the stability of the embedded reinforcement.

[0031] The next step is to construct the fixing bars 3. The top of the fixing bars 3 is a threaded steel bar 7. The threaded steel bar 7 is implanted into the existing roof slab 1 by planting bars and fixed with planting glue, with a spacing of 1200mm. The bottom of the fixing bars 3 is connected to the structural steel bars by binding and overlapping, so that the existing wall 5 and the existing roof slab 1 are connected as a whole to enhance the overall stability.

[0032] The next step is to carry out shotcrete construction. The shotcrete is C25 fine stone concrete, which is sprayed on the wall surface with steel bars tied by a sprayer. The thickness is not less than 60mm and is used to reinforce the existing wall.

[0033] Although the 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. A reinforcement structure at the intersection of a brick longitudinal wall and a prefabricated hollow roof panel, comprising an existing top plate (1), fixing ribs (3), and an existing wall (5), characterized in that: An existing top plate (1) is arranged on the top of the existing wall (5), the hollow channel at the edge of the existing top plate (1) is filled with grouting material (2), threaded steel bars (7) are implanted in the hollow channel of the existing top plate (1) by means of embedded steel bars, a plurality of the threaded steel bars (7) are provided with fixed bars (3) at the bottom, the bottom of the fixed bars (3) pass through the existing top plate (1) and contact the ground, structural steel bars are tied to the surface of the existing wall (5), the structural steel bars include tie bars (4) and reinforcing steel meshes (6), and the plurality of reinforcing steel meshes (6) are composed of a plurality of diameters. 6mm steel bars are cross-arranged, and the horizontal spacing and vertical spacing between the plurality of steel bars are 300mm. The plurality of reinforcing steel meshes (6) are connected to the existing top plate (1) by 6mm diameter steel bars every 300mm. Tie bars (4) are arranged between the plurality of reinforcing steel meshes (6) in the horizontal direction and in the vertical direction every 1200mm. The plurality of tie bars (4) are arranged in a plum blossom shape. The bottom of the fixing bar (3) is connected to the structural steel bar by steel bars in a binding overlap manner. Sprayed concrete (8) is arranged on the surface of the existing wall (5).

2. A reinforcement structure for the intersection of a brick longitudinal wall and a prefabricated hollow roof panel according to claim 1, characterized in that: The existing wall (5) is a brick wall, the thickness of the existing wall (5) is 240 mm, and the brick strength grade is M10.

3. The reinforcement structure at the intersection of a brick longitudinal wall and a prefabricated hollow roof panel according to claim 1, characterized in that: The shotcrete (8) is C25 fine stone concrete.

4. The reinforcement structure at the intersection of a brick longitudinal wall and a prefabricated hollow roof panel according to claim 1, characterized in that: The existing top plate (1) is a prefabricated hollow top plate, and the middle hollow direction of the existing top plate (1) is parallel to the existing wall (5).

5. The reinforcement structure at the intersection of a brick longitudinal wall and a prefabricated hollow roof panel according to claim 1, characterized in that: The threaded steel bars (7) are fixed to the hollow channel of the existing top plate (1) by using a reinforcing bar glue, and the spacing between the plurality of threaded steel bars (7) is 1200 mm.

6. The reinforcement structure at the intersection of a brick longitudinal wall and a prefabricated hollow roof panel according to claim 1, characterized in that: The fixing rib (3) and the threaded steel bar (7) are an integral whole, and the diameters of the fixing rib (3) and the threaded steel bar (7) are 12 mm.

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