Assembly type cavity lap joint post-pouring integrated connecting structure

Abstract

The utility model relates to the technical field of integrated connecting structures, and discloses an assembly type cavity lap joint post-pouring integrated connecting structure which comprises a splicing curtain wall. According to the assembly type cavity lap joint post-pouring integrated connecting structure, through the arrangement of the connecting mechanism, when a wall body needs to be spliced, firstly, an upper splicing curtain wall is arranged above a lower splicing curtain wall, a connecting sleeve is installed at the bottom end of the interior of the upper splicing curtain wall, the upper portion of the connecting sleeve is connected with threaded steel, and a cavity is formed in the interior of the lower portion of the connecting sleeve; threaded steel on the top of the lower spliced curtain wall can be inserted into the connecting sleeve, then concrete is filled into a cavity below the connecting sleeve from the grouting hole connector, air drying and reinforcing are conducted, and the effects of internal connection and splicing are achieved; and the situation that single threaded connection is prone to loosening under the action of vibration or repeated loading, so that connection failure between components is caused, and the safety of a building structure is seriously threatened is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of integrated connection structure technology, especially relates to a fabricated cavity lap joint post-cast integrated connection structure. BACKGROUND

[0002] In the fabricated building system, the connecting structure between components is the key link to ensure the overall performance and safety of the building. The connecting structure not only bears various load actions, including vertical load, horizontal wind load and earthquake action, etc., but also ensures the cooperative work between components, so that the fabricated building can have good overall performance and stability like traditional cast-in-place buildings, so an integrated connection structure needs to be designed.

[0003] The traditional connection method of the existing connecting structure is welding or bolt connection. When dealing with complex and variable loads, welding connection may crack due to unstable welding quality, and bolt connection may loosen under vibration or repeated loading, causing connection failure between components, which seriously threatens the safety of building structure, so a connecting sleeve device needs to be installed. The connecting sleeve structure can provide reliable connection for steel bars, ensure effective stress transfer of steel bars at the component splicing position, and through optimization of the material, shape and internal structure of the sleeve, the engagement force and adhesive force between the sleeve and the steel bar can be enhanced, so that the steel bar behaves like a continuous whole when stressed, greatly improving the carrying capacity and seismic performance of the connection part. The steel frame support structure has high strength and stiffness, can provide reliable support for the spliced curtain wall, effectively enhance the stability of the spliced curtain wall under various load actions, avoid local stress concentration, improve the anti-deformation ability and safety of the spliced curtain wall, and combined with the fabricated cavity lap joint post-cast integrated connection structure, it helps to improve the overall performance, enhance the strength and reliability of the connecting structure. SUMMARY

[0004] (I) The technical problem solved

[0005] The purpose of this utility model is to provide a prefabricated cavity lap joint post-cast integrated connection structure to solve the problems mentioned in the background art. Traditional connection methods, such as welding or bolting, are problematic when dealing with complex and variable loads. Welded connections may crack due to unstable welding quality; bolted connections are prone to loosening under vibration or repeated loading, leading to connection failure between components and seriously threatening the safety of the building structure. Therefore, a connecting sleeve device is needed. The connecting sleeve structure can provide a reliable connection for the reinforcing bars, ensuring effective stress transfer at the component splice. By optimizing the material, shape, and internal structure of the sleeve, the interlocking and bonding forces between the sleeve and the reinforcing steel can be enhanced, making the reinforcing steel act as a continuous whole under stress. This greatly improves the load-bearing capacity and seismic performance of the connection. Furthermore, the steel frame support structure has high strength and rigidity, providing reliable support for the spliced ​​curtain wall and effectively enhancing its stability under various loads. This avoids local stress concentration, improves the deformation resistance and safety of the spliced ​​curtain wall, and, when combined with the prefabricated cavity lap post-cast integrated connection structure, helps to improve the overall integrity and enhance the strength and reliability of the connection structure.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a prefabricated cavity overlapping and post-cast integrated connection structure, comprising a spliced ​​curtain wall, wherein the spliced ​​curtain wall is internally threaded with threaded steel bars, and the ends of the threaded steel bars are externally threaded with connecting mechanisms. Reinforcing mechanisms are installed on both the front and rear sides of the interior of the spliced ​​curtain wall. The connecting mechanism includes a connecting sleeve threaded to the outside of the ends of the threaded steel bars, the connecting sleeve having an internal cavity through which reinforcing bars pass. Grouting components are installed at both the upper and lower ends of the connecting sleeve. The reinforcing mechanism includes iron mesh installed on the front and rear sides of the interior of the spliced ​​curtain wall, and a supporting steel frame is installed in the middle of the spliced ​​curtain wall.

[0008] As a further embodiment of this utility model, a grout outlet connector is installed on the top of the grouting assembly. The back of the grout outlet connector is installed on the outside of the connecting sleeve. The grout outlet connector is designed to allow the overflowing concrete mortar to flow out.

[0009] As a further embodiment of this utility model, a grouting hole connector is installed below the grouting assembly. The back of the grouting hole connector is installed on the lower outer side of the connecting sleeve. The grouting hole connector serves to fill the internal space of the connecting sleeve with concrete.

[0010] As a further embodiment of this utility model, a convex groove is provided on the left side of the splicing curtain wall, and side-fixing steel bars are threadedly connected to both sides of the convex groove. The side-fixing steel bars serve to reinforce the connection on the side.

[0011] As a further embodiment of this utility model, a concave groove is provided on the right side of the splicing curtain wall, and several fixing holes are provided on the left and right sides of the concave groove. The internal threads of the fixing holes are connected to the outside of the side reinforcement bars. The setting of the convex groove plays the role of interlocking and connecting the grooves for secondary connection and reinforcement.

[0012] As a further embodiment of this utility model, the outer part of the threaded steel bar penetrates the gap inside the supporting steel frame, and the top end of the threaded steel bar penetrates the top surface of the spliced ​​curtain wall. Through the setting of the supporting steel frame, it plays a role in internal support and reinforcement.

[0013] As a further embodiment of this utility model, a number of grout outlet holes are provided inside the lower part of the spliced ​​curtain wall, and a number of grouting holes are provided below the grout outlet holes. The back of the grouting holes extends through the top surface of the grouting hole joint. The grouting holes serve as holes for connecting the grouting hole joints, facilitating filling.

[0014] (III) Beneficial Effects

[0015] This utility model provides a prefabricated cavity lap joint post-cast integrated connection structure, which has the following features:

[0016] Beneficial effects:

[0017] 1. This prefabricated cavity overlap and post-cast integrated connection structure, through the setting of the connection mechanism, when the wall is to be spliced, firstly, the upper splicing curtain wall is placed above the lower splicing curtain wall. Since the inner bottom of the upper splicing curtain wall is installed with a connecting sleeve, the upper part of the connecting sleeve is connected with a threaded steel bar, and the lower part is set with a cavity, the threaded steel bar at the top of the lower splicing curtain wall can be inserted into the interior of the connecting sleeve. Then, concrete is filled into the cavity below the connecting sleeve through the grouting hole connector, and air-drying and reinforcement are carried out, which plays the role of internal connection and splicing. This avoids the loosening of a single threaded connection under vibration or repeated loading, which would cause the connection between components to fail and seriously threaten the safety of the building structure.

[0018] 2. This prefabricated cavity overlap and post-cast integrated connection structure, through the setting of reinforcement mechanisms, strengthens the load-bearing capacity when the wall is to be spliced. First, iron mesh is embedded on both sides of the interior of the spliced ​​curtain wall. The iron mesh can reinforce and lock the external wall surface on both sides. Then, a supporting steel frame is installed in the middle of the spliced ​​curtain wall. The supporting steel frame greatly improves the load-bearing strength of the spliced ​​curtain wall. Then, threaded steel passes through the middle gap of the supporting steel frame and connects below, which plays a role in increasing strength and support, improving the deformation resistance and safety of the spliced ​​curtain wall. Combined with the prefabricated cavity overlap and post-cast integrated connection structure, it helps to improve the overall integrity and enhance the strength and reliability of the connection structure. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the connection mechanism of this utility model;

[0021] Figure 3 This is a schematic diagram of the reinforcement mechanism of this utility model;

[0022] Figure 4 This is a schematic diagram of the connecting sleeve structure of this utility model.

[0023] In the diagram: 1. Spliced ​​curtain wall; 2. Threaded steel bar; 3. Connection mechanism; 301. Connection sleeve; 302. Reinforcing bar; 303. Grouting assembly; 4. Reinforcing mechanism; 401. Iron mesh; 402. Supporting steel frame; 5. Grout outlet joint; 6. Grouting hole joint; 7. Convex groove; 8. Side reinforcement bar; 9. Concave groove. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0025] Please see Figures 1 to 4This utility model provides a technical solution: a prefabricated cavity overlapping and post-cast integrated connection structure, a spliced ​​curtain wall 1, a threaded steel bar 2 is threadedly connected inside the spliced ​​curtain wall 1, a connecting mechanism 3 is threadedly connected to the end of the threaded steel bar 2, a reinforcing mechanism 4 is installed on both the front and rear sides inside the spliced ​​curtain wall 1, the connecting mechanism 3 includes a connecting sleeve 301 threadedly connected to the end of the threaded steel bar 2, a cavity is opened inside the connecting sleeve 301, a steel bar 302 passes through the cavity, grouting components 303 are installed at both the upper and lower ends of the connecting sleeve 301, the reinforcing mechanism 4 includes an iron mesh 401 installed on the front and rear sides inside the spliced ​​curtain wall 1, and a supporting steel frame 402 is installed in the middle of the spliced ​​curtain wall 1;

[0026] Please see Figure 4 A grout outlet connector 5 is installed on the top of the grouting component 303. The back of the grout outlet connector 5 is installed on the outside of the connecting sleeve 301. The grout outlet connector 5 serves to allow the overflowing concrete mortar to flow out.

[0027] Please see Figure 4 A grouting hole connector 6 is installed below the grouting component 303. The back of the grouting hole connector 6 is installed on the lower outer side of the connecting sleeve 301. The grouting hole connector 6 serves to fill the internal space of the connecting sleeve 301 with concrete.

[0028] Please see Figure 1 A convex groove 7 is provided on the left side of the splicing curtain wall 1. Both sides of the convex groove 7 are threaded with side reinforcement bars 8. The side reinforcement bars 8 serve to reinforce the side connection.

[0029] Please see Figure 1 The right side of the spliced ​​curtain wall 1 is provided with a concave groove 9. Several fixing holes are opened on the left and right sides of the concave groove 9. The internal threads of the fixing holes are connected to the outside of the side reinforcement steel bar 8. The setting of the convex groove 7 plays the role of interlocking and connecting the grooves for secondary connection and reinforcement.

[0030] Please see Figure 1 The outer part of the threaded steel bar 2 penetrates the gap inside the supporting steel frame 402, and the top of the threaded steel bar 2 penetrates the top surface of the spliced ​​curtain wall 1. Through the setting of the supporting steel frame 402, it plays a role in internal support and reinforcement.

[0031] Please see Figure 4 Several grout outlet holes are provided inside the lower part of the spliced ​​curtain wall 1, and several grouting holes are provided below the grout outlet holes. The back of the grouting holes is connected to the top surface of the grouting hole joint 6. The grouting holes serve to connect the holes of the grouting hole joint 6 and facilitate filling.

[0032] In this invention, the working steps of the device are as follows:

[0033] First step: First, place the upper splicing curtain wall 1 on top of the lower splicing curtain wall 1. Since the lower splicing curtain wall 1 has a connecting sleeve 301 installed at the bottom, and the upper part of the connecting sleeve 301 is connected to the threaded steel bar 2, and the lower part has a cavity, the threaded steel bar 2 at the top of the lower splicing curtain wall 1 can be inserted into the interior of the connecting sleeve 301. Then, concrete is filled into the cavity below the connecting sleeve 301 through the grouting hole connector 6 for air drying and reinforcement.

[0034] The second step: When splicing the wall, in order to enhance the load-bearing capacity, iron mesh 401 is first embedded on both sides of the interior of the spliced ​​curtain wall 1. The iron mesh 401 can reinforce and lock the external wall surface on both sides. Then, a supporting steel frame 402 is installed in the middle of the spliced ​​curtain wall 1. The supporting steel frame 402 greatly improves the load-bearing strength of the spliced ​​curtain wall 1. After that, the threaded steel 2 passes through the middle gap of the supporting steel frame 402 and is connected below.

[0035] It should be noted that the device structure and accompanying drawings of this utility model mainly describe the principle of this utility model. In terms of the technical aspects of this design principle, the setting of the power mechanism, power supply system and control system of the device is not fully described. However, under the premise that those skilled in the art understand the principle of the above utility model, the specific details of its power mechanism, power supply system and control system can be clearly understood. The control method in the application document is automatic control through a controller. The control circuit of the controller can be implemented by those skilled in the art through simple programming.

[0036] All standard parts used can be purchased from the market, and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the existing technology. The machinery, parts and equipment adopt conventional models in the existing technology, and the structure and principle of the components known to those skilled in the art can be known by those skilled in the art through technical manuals or conventional experimental methods.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A prefabricated cavity lap post-cast integrated connection structure, a spliced curtain wall (1), characterized in that: The threaded steel (2) is internally screwed to the spliced curtain wall (1), the terminal end of the threaded steel (2) is externally screwed to the connecting mechanism (3), the reinforcing mechanism (4) is installed on the front and back of the spliced curtain wall (1), The connecting mechanism (3) comprises a connecting sleeve (301) which is externally screwed to the terminal end of the threaded steel (2), a cavity is formed in the connecting sleeve (301), a steel bar (302) penetrates through the cavity, and the grouting assembly (303) is installed on the upper and lower ends of the connecting sleeve (301), The reinforcing mechanism (4) comprises the iron mesh (401) which is installed on the front and back of the spliced curtain wall (1), and the supporting steel frame (402) is installed in the middle of the spliced curtain wall (1).

2. The assembled cavity lap splice post-pouring integrated connection structure according to claim 1, characterized in that: The grouting hole connector (6) is installed below the grouting assembly (303), and the back of the grouting hole connector (6) is installed below the outer side of the connecting sleeve (301).

3. The assembled cavity lap splice post-pouring integrated connection structure according to claim 1, characterized in that: The grouting hole connector (6) is installed below the grouting assembly (303), and the back of the grouting hole connector (6) is installed below the outer side of the connecting sleeve (301).

4. The assembled cavity lap splice post-pouring integrated connection structure according to claim 1, characterized in that: The convex clamping groove (7) is arranged on the left side of the spliced curtain wall (1), and the side fixing steel bars (8) are screwed to the left and right sides of the convex clamping groove (7).

5. The assembled cavity lap splice post-pouring integrated connection structure according to claim 1, characterized in that: The concave clamping groove (9) is arranged on the right side of the spliced curtain wall (1), a plurality of fixing holes are formed on the left and right sides of the concave clamping groove (9), and the fixing holes are externally screwed to the side fixing steel bars (8).

6. The prefabricated cavity lap splice post-pouring integrated connection structure according to claim 1, characterized in that: The threaded steel (2) penetrates through the gap in the supporting steel frame (402), and the top end of the threaded steel (2) penetrates through the top surface of the spliced curtain wall (1).

7. The assembled cavity lap splice post-pouring integrated connection structure according to claim 1, characterized in that: A plurality of grouting holes are formed in the lower part of the spliced curtain wall (1), a plurality of grouting holes are formed below the grouting holes, and the back of the grouting hole is connected to the top surface of the grouting hole connector (6).

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