Connecting structure of EMC (Electro Magnetic Compatibility) hollow laminated shear wall and floor slab

Abstract

The utility model relates to the field of floor slab connecting structures, in particular to an EMC (Electro Magnetic Compatibility) hollow laminated shear wall and floor slab connecting structure which comprises a cast-in-place slab, and an EMC hollow laminated shear wall prefabricated part is movably arranged above the cast-in-place slab. According to the utility model, the EMC hollow laminated shear wall prefabricated part is hoisted, so that the second reinforcing steel bar is inserted into the inner wall of the second through hole, the outer wall of the lower end of the second reinforcing steel bar is attached to the inner wall of the limiting hole, then the aluminum mold is sealed and attached to the side wall of the lower end of the EMC hollow laminated shear wall prefabricated part, and concrete is injected into the corrugated pipe through the material injection hole, so that the prefabricated part of the EMC hollow laminated shear wall is formed. When the cast-in-place slab is in use, the concrete falls out through the corrugated pipe until the inner space of the whole aluminum mold is filled, and finally, the upper end of the cast-in-place slab and the lower end of the EMC hollow laminated shear wall prefabricated part are connected together through the concrete, so that the EMC hollow laminated shear wall prefabricated part is stably supported.

Description

Technical Field

[0001] The utility model belongs to the field of floor slab connection structures, and in particular relates to a connection structure of an EMC hollow composite shear wall and a floor slab. Background Art

[0002] At present, prefabricated walls on construction sites usually use EMC hollow composite shear walls. EMC hollow composite shear walls are a new type of earthquake-resistant structural system that combines the advantages of hollow wall panels and reinforced concrete shear walls to form a unique combination.

[0003] When setting up the EMC prefabricated wall, a 70mm horizontal joint needs to be reserved at the bottom. The height of the horizontal joint is traditionally adjusted using square steel pipes and gaskets. Due to the unevenness of the slab casting quality, the wall needs to be leveled two to three times before it can be leveled, which makes construction inconvenient. In addition, the bottom gap formwork is traditionally supported by wooden formwork plus tension screws, and the molding quality is poor.

[0004] Therefore, an EMC hollow composite shear wall and floor slab connection structure is proposed, which has the function of quickly connecting the shear wall and the floor slab, thereby improving the construction quality and speed. Utility Model Content

[0005] In order to overcome the problem that the existing EMC prefabricated wall needs to be leveled two to three times during installation, the construction is inconvenient, and the bottom gap formwork is traditionally supported by wooden formwork plus tension screws, resulting in poor molding quality.

[0006] The technical scheme of the utility model is: a connection structure of an EMC hollow composite shear wall and a floor slab, comprising a cast-in-place slab; an EMC hollow composite shear wall prefabricated component is movably arranged above the cast-in-place slab, two embedded nuts are fixedly connected to the inner wall of the upper end of the cast-in-place slab, a bearing bolt is threadedly installed on the inner wall of the embedded nut, the upper end of the bearing bolt is fitted with the lower end of the EMC hollow composite shear wall prefabricated component, a first steel bar is fixedly connected to the lower part of the side wall of the embedded nut, a fixing clamp is fixedly connected to the other end of the first steel bar, a limiting block is movably arranged on the inner wall of the fixing clamp, limiting holes are penetrated through the upper and lower ends of the limiting block, locking bolts are threadedly installed on both sides of the fixing clamp and the limiting block, a second steel bar is movably arranged on the inner wall of the limiting hole, two first through holes are penetrated through the upper and lower ends of the EMC hollow composite shear wall prefabricated component, a corrugated pipe is fixedly connected to the lower part of the inner wall of the first through hole, The upper part of the side wall of the second steel bar is fixed to the inner wall of the corrugated pipe, injection holes are opened on both sides of the EMC hollow composite shear wall prefabricated component, the first through hole and the interior of the injection hole are interconnected, and second through holes are opened at the upper and lower ends of the cast-in-place slab, and the lower end side wall of the second steel bar is fitted with the inner wall of the second through hole, and an aluminum film is movably provided on the lower end side wall of the EMC hollow composite shear wall prefabricated component, and a K-plate is movably provided on one side of the cast-in-place slab, and a conical K-clamp screw is threadedly installed on the K-plate, and the conical K-clamp screw passes through the K-plate and is threadedly installed in the wall layer of the cast-in-place slab, and a fixed block is movably provided on the side of the aluminum film away from the K-plate, and pull tabs are movably provided on both sides of the fixed block, and first threaded columns are threadedly installed on both sides of the fixed block, and the first threaded column is threadedly installed on the pull tab, and second threaded columns are threadedly installed on both sides of the K-plate, and the second threaded column is threadedly installed on the pull tab.

[0007] Preferably, when in use, first install the load-bearing bolt thread in the embedded nut, then weld the gap between the load-bearing bolt and the embedded nut, use the locking bolt to fix the limit block to the inner wall of the fixing clamp, and then cast the outside of the structure consisting of the embedded nut, the load-bearing bolt, the first steel bar, the fixing clamp, the limit block, the locking bolt and the limit hole to obtain the cast-in-place slab, so that the embedded nut and the fixing clamp are both located inside the cast-in-place slab, and then the EMC hollow composite shear wall prefabricated component is hoisted so that the second steel bar is inserted into the inner wall of the second through hole, and at the same time, the outer wall of the lower end of the second steel bar is fit with the inner wall of the limiting hole, then, the aluminum film is sealed on the lower end side wall of the EMC hollow composite shear wall prefabricated component, and then the K plate is fixed to one side of the cast-in-place slab with a tapered K-clip screw, the fixing block is placed on the upper end of the cast-in-place slab, and the two pull The sheets are placed on both sides of the K-plate respectively, and then the second threaded column is threadedly installed on the pull tab and the K-plate at the same time, and the first threaded column is threadedly installed on the pull tab and the fixed block at the same time, so that the stable installation of the aluminum membrane can be achieved, and then concrete is injected into the interior of the corrugated tube through the injection hole. The concrete will fall downward through the corrugated tube until the entire internal space of the aluminum membrane is filled. Finally, the concrete will connect the upper end of the cast-in-place slab and the lower end of the EMC hollow composite shear wall prefabricated component together to achieve stable support for the EMC hollow composite shear wall prefabricated component. After the concrete is formed, the aluminum membrane can be removed, which solves the problem that the existing EMC prefabricated wall needs to be adjusted two to three times before it can be leveled during setting, the construction is inconvenient, and the bottom gap formwork is traditionally supported by a wooden formwork plus a tension screw, and the forming quality is poor.

[0008] Preferably, the bellows is located below the injection hole, and the bottom surface of the bellows is flush with the bottom surface of the EMC hollow composite shear wall prefabricated component.

[0009] Preferably, the diameter of the second steel bar is smaller than the inner diameter of the corrugated tube.

[0010] Preferably, the diameter of the first steel bar is ten millimeters.

[0011] Preferably, the diameter of the second steel bar is twenty-two millimeters.

[0012] Preferably, the locking bolt has a diameter of ten millimeters.

[0013] Preferably, the thickness of the aluminum film is less than three millimeters.

[0014] The beneficial effects of the utility model are as follows: the load-bearing bolt thread is installed in the embedded nut, and then the gap between the load-bearing bolt and the embedded nut is welded, and the limit block is fixed to the inner wall of the fixing clamp by using the locking bolt, and then the outside of the structure consisting of the embedded nut, the load-bearing bolt, the first steel bar, the fixing clamp, the limit block, the locking bolt and the limit hole is cast to obtain a cast-in-place slab, so that the embedded nut and the fixing clamp are both located inside the cast-in-place slab, and then the EMC hollow composite shear wall prefabricated component is hoisted so that the second steel bar is inserted into the inner wall of the second through hole, and at the same time, the outer wall of the lower end of the second steel bar is fit with the inner wall of the limiting hole, then, the aluminum film is sealed on the lower end side wall of the EMC hollow composite shear wall prefabricated component, and then the K plate is fixed to one side of the cast-in-place slab by using a conical K-clip screw, and the fixing block is placed on the upper end of the cast-in-place slab, and the two The pull tabs are placed on both sides of the K-plate respectively, and the second threaded column is threadedly installed on the pull tab and the K-plate at the same time, and the first threaded column is threadedly installed on the pull tab and the fixed block at the same time, so that the aluminum film can be stably installed, and then concrete is injected into the interior of the corrugated tube through the injection hole. The concrete will fall downward through the corrugated tube until the entire internal space of the aluminum film is filled. Finally, the concrete will connect the upper end of the cast-in-place slab and the lower end of the EMC hollow composite shear wall prefabricated component together, so as to achieve stable support for the EMC hollow composite shear wall prefabricated component. After the concrete is formed, the aluminum film can be removed, which solves the problem that the existing EMC prefabricated wall needs to be adjusted two to three times before it can be leveled during setting, the construction is inconvenient, and the bottom gap formwork is traditionally supported by a wooden formwork plus a tension screw, and the forming quality is poor. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 What is shown is a three-dimensional structural schematic diagram of a connection structure of an EMC hollow composite shear wall and a floor slab of the utility model;

[0016] Figure 2 What is shown is a cross-sectional three-dimensional structural schematic diagram of an EMC hollow composite shear wall prefabricated component of a connection structure between an EMC hollow composite shear wall and a floor slab of the utility model;

[0017] Figure 3 What is shown is a three-dimensional split structure schematic diagram of a cast-in-place plate and embedded nuts of a connection structure of an EMC hollow composite shear wall and a floor slab of the utility model;

[0018] Figure 4 What is shown is a three-dimensional structural schematic diagram of a pull tab of a connection structure of an EMC hollow composite shear wall and a floor slab of the utility model;

[0019] Figure 5 What is shown is a three-dimensional structural schematic diagram of a K-plate of a connection structure of an EMC hollow composite shear wall and a floor slab of the utility model.

[0020] The markings in the attached drawings are: 1. cast-in-place slab; 2. EMC hollow composite shear wall prefabricated component; 3. embedded nut; 4. load-bearing bolt; 5. first steel bar; 6. fixing clamp; 7. limit block; 8. locking bolt; 9. limit hole; 10. second steel bar; 11. first through hole; 12. corrugated pipe; 13. injection hole; 14. second through hole; 15. aluminum film; 16. K plate; 17. conical K-clip screw; 18. pull tab; 19. fixing block; 20. first threaded column; 21. second threaded column. DETAILED DESCRIPTION

[0021] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0022] See also Figure 1-Figure 5 The utility model provides an embodiment: a connection structure of an EMC hollow composite shear wall and a floor slab, comprising a cast-in-place slab 1; an EMC hollow composite shear wall prefabricated component 2 is movably arranged above the cast-in-place slab 1, two embedded nuts 3 are fixedly connected to the inner wall of the upper end of the cast-in-place slab 1, and a bearing bolt 4 is threadedly installed on the inner wall of the embedded nut 3, and the upper end of the bearing bolt 4 is in contact with the lower end of the EMC hollow composite shear wall prefabricated component 2, and the lower part of the side wall of the embedded nut 3 is fixedly connected to a first steel bar 5, and the first steel bar The other end of the fixing clamp 6 is fixedly connected, and the inner wall of the fixing clamp 6 is movably provided with a limit block 7. The upper and lower ends of the limit block 7 are penetrated with limit holes 9. The fixing clamp 6 and the limit block 7 are threadedly installed with locking bolts 8 on both sides. The inner wall of the limit hole 9 is movably provided with a second steel bar 10. The upper and lower ends of the EMC hollow composite shear wall prefabricated component 2 are penetrated with two first through holes 11. The lower part of the inner wall of the first through hole 11 is fixedly connected with a corrugated pipe 12. The upper part of the side wall of the second steel bar 10 is fixedly connected to the corrugated pipe 12. The inner wall of the corrugated tube 12, the two sides of the EMC hollow composite shear wall prefabricated component 2 are penetrated with injection holes 13, the first through hole 11 and the inside of the injection hole 13 are interconnected, the upper and lower ends of the cast-in-place plate 1 are penetrated with second through holes 14, the lower end side wall of the second steel bar 10 is in contact with the inner wall of the second through hole 14, the lower end side wall of the EMC hollow composite shear wall prefabricated component 2 is movably provided with an aluminum film 15, and one side of the cast-in-place plate 1 is movably provided with a K plate 16, and a conical K card screw is threadedly installed on the K plate 16 17. The conical K-clip screw 17 passes through the K-plate 16 and is threadedly installed in the wall layer of the cast-in-place slab 1. A fixing block 19 is movably provided on the side of the aluminum film 15 away from the K-plate 16. Pull tabs 18 are movably provided on both sides of the fixing block 19 and the K-plate 16. First threaded columns 20 are threadedly installed on both sides of the fixing block 19. The first threaded columns 20 are threadedly installed on the pull tab 18. Second threaded columns 21 are threadedly installed on both sides of the K-plate 16. The second threaded columns 21 are threadedly installed on the pull tab 18.

[0023] See also Figure 1-Figure 4In this embodiment, the bellows 12 is located below the injection hole 13, and the bottom surface of the bellows 12 is flush with the bottom surface of the EMC hollow composite shear wall prefabricated component 2. Concrete is injected into the interior of the bellows 12 through the injection hole 13. The concrete will fall downward through the bellows 12 until the entire internal space of the aluminum film 15 is filled. Finally, the concrete will connect the upper end of the cast-in-place slab 1 and the lower end of the EMC hollow composite shear wall prefabricated component 2 together, thereby achieving stable support for the EMC hollow composite shear wall prefabricated component 2.

[0024] See also Figure 1-Figure 4 In this embodiment, the diameter of the second steel bar 10 is smaller than the inner diameter of the corrugated tube 12. When concrete is injected into the corrugated tube 12 through the injection hole 13, the concrete can fall downward through the gap between the corrugated tube 12 and the second steel bar 10, making it convenient to quickly fill the interior of the aluminum film 15.

[0025] See also Figure 1-Figure 3 In this embodiment, the diameter of the first steel bar 5 is ten millimeters. The setting of the first steel bar 5 can improve the stability of the embedded nut 3 and the fixing clamp 6. The diameter of the second steel bar 10 is twenty-two millimeters. The setting of the second steel bar 10 can facilitate the EMC hollow composite shear wall prefabricated component 2 to be quickly placed on the upper ends of the two bearing bolts 4. The diameter of the locking bolt 8 is ten millimeters, which makes it convenient to fix the limit block 7 on the inner wall of the fixing clamp 6.

[0026] See also Figure 1 and Figure 4 In this embodiment, the thickness of the aluminum film 15 is less than three millimeters. The thickness of the aluminum film 15 is relatively thin, which is convenient and quick to install on the lower end outer wall of the EMC hollow composite shear wall prefabricated component 2.

[0027] Working principle: First, the bearing bolt 4 is threadedly installed in the embedded nut 3, and then the gap between the bearing bolt 4 and the embedded nut 3 is welded, and the limit block 7 is fixed to the inner wall of the fixing clamp 6 by the locking bolt 8, and then the outside of the structure consisting of the embedded nut 3, the bearing bolt 4, the first steel bar 5, the fixing clamp 6, the limit block 7, the locking bolt 8 and the limit hole 9 is cast to obtain the cast-in-place slab 1, so that the embedded nut 3 and the fixing clamp 6 are both located inside the cast-in-place slab 1;

[0028] Then, the EMC hollow composite shear wall prefabricated component 2 is hoisted so that the second steel bar 10 is inserted into the inner wall of the second through hole 14, and the outer wall of the lower end of the second steel bar 10 is fitted with the inner wall of the limiting hole 9. Then, the aluminum film 15 is sealed on the lower end side wall of the EMC hollow composite shear wall prefabricated component 2, and then the K plate 16 is fixed to one side of the cast-in-place slab 1 using the conical K clamp screw 17;

[0029] Next, the fixing block 19 is placed on the upper end of the cast-in-place slab 1, and the two pull tabs 18 are placed on both sides of the K-plate 16 respectively, and then the second threaded column 21 is threadedly installed on the pull tab 18 and the K-plate 16 at the same time, and the first threaded column 20 is threadedly installed on the pull tab 18 and the fixing block 19 at the same time, so that the aluminum film 15 can be stably installed;

[0030] Then, concrete is injected into the interior of the corrugated tube 12 through the injection hole 13. The concrete will fall downward through the corrugated tube 12 until the entire internal space of the aluminum film 15 is filled. Finally, the concrete will connect the upper end of the cast-in-place slab 1 and the lower end of the EMC hollow composite shear wall prefabricated component 2 together, thereby achieving stable support for the EMC hollow composite shear wall prefabricated component 2. After the concrete is formed, the aluminum film 15 can be removed.

[0031] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of those skilled in the art without departing from the purpose of the present invention.

Claims

1. A connection structure of an EMC hollow composite shear wall and a floor slab, comprising a cast-in-place slab (1); characterized in that: An EMC hollow composite shear wall prefabricated component (2) is movably arranged above the cast-in-place slab (1); two embedded nuts (3) are fixedly connected to the inner wall of the upper end of the cast-in-place slab (1); a bearing bolt (4) is threadedly installed on the inner wall of the embedded nut (3); the upper end of the bearing bolt (4) is in contact with the lower end of the EMC hollow composite shear wall prefabricated component (2); a first steel bar (5) is fixedly connected to the lower part of the side wall of the embedded nut (3); a fixing clamp (6) is fixedly connected to the other end of the first steel bar (5); a limit block (7) is movably arranged on the inner wall of the fixing clamp (6); and the limit block The upper and lower ends of the EMC hollow composite shear wall prefabricated component (2) are provided with two first through holes (11), the lower part of the inner wall of the first through hole (11) is fixedly connected to a corrugated pipe (12), the upper part of the side wall of the second steel bar (10) is fixedly connected to the inner wall of the corrugated pipe (12), and the EMC hollow composite shear wall prefabricated component (2) is provided with two first through holes (11). Injection holes (13) are provided on both sides of the cast-in-place slab (1), the first through hole (11) and the injection hole (13) are interconnected, second through holes (14) are provided on the upper and lower ends of the cast-in-place slab (1), the lower end side wall of the second steel bar (10) is in contact with the inner wall of the second through hole (14), an aluminum film (15) is movably provided on the lower end side wall of the EMC hollow composite shear wall prefabricated component (2), a K plate (16) is movably provided on one side of the cast-in-place slab (1), a conical K clamp screw (17) is threadedly installed on the K plate (16), and the conical K clamp screw (17) passes through The K plate (16) is threadedly installed in the wall layer of the cast-in-place plate (1); a fixed block (19) is movably provided on the side of the aluminum film (15) away from the K plate (16); pull tabs (18) are movably provided on both sides of the fixed block (19) and the K plate (16); first threaded columns (20) are threadedly installed on both sides of the fixed block (19); the first threaded columns (20) are threadedly installed on the pull tab (18); second threaded columns (21) are threadedly installed on both sides of the K plate (16); the second threaded columns (21) are threadedly installed on the pull tab (18).

2. The connection structure of an EMC hollow composite shear wall and a floor slab according to claim 1, characterized in that: The bellows (12) is located below the injection hole (13), and the bottom surface of the bellows (12) is flush with the bottom surface of the EMC hollow composite shear wall prefabricated component (2).

3. The connection structure of an EMC hollow composite shear wall and a floor slab according to claim 1, characterized in that: The diameter of the second steel bar (10) is smaller than the inner diameter of the corrugated tube (12).

4. The connection structure of an EMC hollow composite shear wall and a floor slab according to claim 1, characterized in that: The diameter of the first steel bar (5) is ten millimeters.

5. The connection structure of an EMC hollow composite shear wall and a floor slab according to claim 1, characterized in that: The diameter of the second steel bar (10) is 22 mm.

6. The connection structure of an EMC hollow composite shear wall and a floor slab according to claim 1, characterized in that: The diameter of the locking bolt (8) is ten millimeters.

7. The connection structure of an EMC hollow composite shear wall and a floor slab according to claim 1, characterized in that: The thickness of the aluminum film (15) is less than three millimeters.

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