Reinforced concrete prefabricated part connecting structure

Abstract

The utility model discloses a reinforced concrete prefabricated part connecting structure, which relates to the technical field of prefabricated structures in civil engineering and comprises a prefabricated column and a prefabricated beam, the prefabricated column is mounted on one side of the prefabricated beam, embedded steel bars are fixedly connected between the prefabricated column and the prefabricated beam, and a mounting component is fixedly mounted between the prefabricated column and the prefabricated beam. A reinforcing assembly is fixedly mounted in an inner cavity of the precast beam, a mounting plate and a fixing plate in the mounting assembly are fixed to the butt joint ends of the precast column and the precast beam correspondingly, and an embedded block and a sleeving block which are correspondingly mounted on the mounting plate and the fixing plate are embedded to form a mortise and tenon joint structure, so that butt joint deviation can be effectively reduced, and a guarantee is provided for follow-up accurate penetration of a screw rod into a through hole; and the protruding face of the side wall of the embedded block is clamped with the inner wall of the clamping groove of the sleeving block to prevent sliding, the connection stability is further improved through the locking effect of the screw and the nut, meanwhile, the guide sleeve assists components in rapid alignment, the connection strength is enhanced in an all-around mode, and safety and stability of the overall structure are guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of prefabricated assembly structure technology in civil engineering, specifically a connection structure for precast reinforced concrete components. Background Technology

[0002] The connection structure of precast reinforced concrete components is the core of prefabricated buildings. It mainly includes wet and dry connections. Wet connections use high-strength grout to anchor steel bars, resulting in good integrity. Dry connections use bolts or welding, which have the advantages of quick construction and easy quality inspection, ensuring the safety, efficiency and integrity of precast buildings.

[0003] Existing bolted connection methods require precise pre-embedding of bolts or sleeves with internal threads in prefabricated components. During installation, high-strength bolts are used to fasten adjacent components. This method has the advantages of reliable connection and convenient installation and removal. However, it has extremely stringent requirements for the accuracy of prefabrication and on-site installation. The planar position and elevation of the pre-embedded bolts or sleeves must meet the design parameters.

[0004] However, even slight deviations in the installation of pre-embedded bolts or sleeves can prevent the bolts from being properly inserted into the holes, causing serious installation delays, construction delays, and wasted labor. In addition, it may lead to the need to enlarge the holes or use gas cutting to force installation, thereby weakening the connection strength, creating safety hazards, and ultimately affecting the safety and stability of the entire structure.

[0005] Therefore, this utility model provides a connection structure for precast reinforced concrete components to solve the problems mentioned above. Utility Model Content

[0006] The purpose of this utility model is to provide a connection structure for precast reinforced concrete components to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A precast reinforced concrete component connection structure includes a precast column and a precast beam. The precast column is installed on one side of the precast beam, and both are fixedly connected with embedded steel bars to transfer stress and enhance the overall connection.

[0009] An installation assembly is fixedly installed between the precast columns and precast beams to achieve precise docking and assembly, avoid misalignment due to deviation, and ensure smooth installation. A reinforcement assembly is fixedly installed in the inner cavity of the precast beam to enhance the connection effect, which can enhance the connection strength between the precast columns and precast beams, improve stability, and further strengthen the load-bearing capacity and safety of the overall structure.

[0010] The reinforcement component includes a grouting sleeve, which is fixedly installed in the inner cavity of the precast beam. A grouting pipe and a grout outlet pipe are fixedly installed on the top of the grouting sleeve, and the openings of both pipes are flush with the top surface of the precast beam.

[0011] As a further embodiment of this utility model, the installation assembly includes an installation plate and a fixing plate. The installation plate and the fixing plate are respectively located on the outer wall of the joint end of the precast column and the precast beam. An embedding block and a socket block are respectively fixedly installed on the corresponding side of the installation plate and the fixing plate. The inner cavity of the socket block is provided with a slot, and the embedding block is inserted into the slot to form a tenon and mortise structure, so as to realize the precise connection between the precast column and the precast beam.

[0012] As a further embodiment of this utility model, a screw is inserted into the inner cavity of the socket block, and both the insert block and the socket block have through holes for inserting the screw, with the screw passing through the through holes.

[0013] As a further embodiment of this utility model, a guide sleeve is fixedly fitted on the outer wall of the fixing plate to provide guidance for the docking of precast columns and precast beams and to assist in the rapid alignment of components. A pad is fixedly installed on the bottom surface of the inner wall of the guide sleeve to buffer the impact force during docking and play a role in shock absorption and protection.

[0014] As a further embodiment of this utility model, a positioning plate is fixedly connected to the top of the fixing plate for positioning and installation of the fixing plate. Threaded sleeves are fixedly installed in the inner cavities of both the precast column and the precast beam. Bolts are inserted into the inner cavities of both the positioning plate and the mounting plate, and the bolts are threadedly engaged with the threaded sleeves.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. When this utility model is used, the mounting plate and fixing plate in the installation assembly are respectively fixed to the joint end of the precast column and the precast beam. The corresponding embedded blocks and sleeve blocks are fitted together to form a tenon and mortise structure, which can effectively reduce the joint deviation and provide a guarantee for the subsequent accurate insertion of the screw into the hole. In addition, the protruding surface of the side wall of the embedded block engages with the inner wall of the slot of the sleeve block to prevent slippage. Combined with the locking effect of the screw and nut, the connection stability is further improved. At the same time, the guide sleeve auxiliary component is quickly aligned, which comprehensively strengthens the connection strength and ensures the safety and stability of the overall structure.

[0017] 2. When this utility model is used, the grouting sleeve is the core of the reinforcement component. The grouting pipe and the grout outlet pipe at the top of the sleeve provide a precise injection and observation channel for the grouting operation. During the operation, the cement grout is injected through the grouting pipe and gradually fills the connection gap between the precast column, the installation component and the precast beam under pressure. Finally, the grout solidifies in the groove of the precast column, tightly combining the precast column, the installation component and the precast beam into a whole, effectively strengthening the connection strength and structural integrity, and improving the load-bearing capacity and seismic performance. Attached Figure Description

[0018] Figure 1 This is a structural schematic diagram of a precast reinforced concrete component connection structure.

[0019] Figure 2 This is a structural schematic diagram of a reinforcing component in a precast reinforced concrete connection structure.

[0020] Figure 3 This is a schematic diagram of the installation components in a precast reinforced concrete component connection structure.

[0021] Figure 4 This is a structural cross-sectional view of an installation component in a precast reinforced concrete component connection structure.

[0022] Figure 5 This is a structural exploded view of the installation components in a precast reinforced concrete component connection structure.

[0023] In the diagram: 1. Precast column; 2. Precast beam; 3. Embedded reinforcing steel;

[0024] 4. Installation components; 401. Mounting plate; 402. Fixing plate; 403. Embedding block; 404. Socket block; 405. Screw; 406. Guide sleeve; 407. Pad; 408. Cover plate; 409. Positioning plate; 410. Threaded sleeve; 411. Bolt; 412. Auxiliary support frame;

[0025] 5. Reinforcing components; 501. Grouting sleeve; 502. Grouting pipe; 503. Grout outlet pipe; 504. Grout outlet. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figure 1 , Figure 2 In this embodiment of the utility model, a precast reinforced concrete component connection structure includes a precast column 1 and a precast beam 2. The precast column 1 is installed on one side of the precast beam 2, and both are fixedly connected with embedded steel bars 3 to transfer stress and enhance the overall connection.

[0028] An installation component 4 is fixedly installed between the precast column 1 and the precast beam 2, which can achieve precise docking and assembly, avoid misalignment due to deviation, and ensure smooth installation. A reinforcement component 5 is fixedly installed in the inner cavity of the precast beam 2 to enhance the connection effect, which can enhance the connection strength between the precast column 1 and the precast beam 2, improve stability, and further enhance the load-bearing capacity and safety of the overall structure.

[0029] It should be noted that both the precast column 1 and the precast beam 2 have reserved holes in their inner cavities, and the pre-embedded steel bars 3 are located in the reserved holes, providing an installation channel for the steel bars, ensuring the accuracy of the connection, and laying the foundation for the connection.

[0030] Please see Figure 2 , Figure 3 , Figure 4 , Figure 5 The installation component 4 includes an installation plate 401 and a fixing plate 402. The installation plate 401 and the fixing plate 402 are respectively located on the outer wall of the joint end of the precast column 1 and the precast beam 2. An embedded block 403 and a sleeve block 404 are fixedly installed on the corresponding side of the installation plate 401 and the fixing plate 402. The inner cavity of the sleeve block 404 is provided with a slot, and the embedded block 403 is inserted into the slot to form a tenon and mortise structure, so as to achieve precise docking between the precast column 1 and the precast beam 2.

[0031] It should be noted that the embedded block 403 and the socket block 404 form a mortise and tenon joint structure, which effectively limits the displacement deviation when the precast column 1 and the precast beam 2 are connected, ensures precise alignment, avoids installation jamming, improves construction efficiency, and enhances the initial stability of the connection part, laying a reliable foundation for subsequent connection processes.

[0032] It should also be noted that the side wall of the insert block 403 has a protruding surface. When the insert block 403 is inserted into the slot, the protruding surface can form a limiting engagement with the inner wall of the slot of the sleeve block 404, which effectively prevents the insert block 403 from sliding in the slot, enhances the fit and fastness, avoids relative displacement due to vibration or force after docking, and further ensures connection accuracy and structural stability.

[0033] The inner cavity of the socket block 404 is fitted with a screw 405. Both the insert block 403 and the socket block 404 have through holes for inserting the screw 405, and the screw 405 passes through the through holes.

[0034] It should be noted that after the insert block 403 and the sleeve block 404 are sequentially inserted at both ends of the screw 405, they are fastened by nuts. The cooperation between the screw 405 and the nut achieves rigid locking of the insert block 403 and the sleeve block 404, which strengthens the fastness of the tenon and mortise structure. In addition, a sealing ring is fixedly connected to the side of the nut that fits against the sleeve block 404. The sealing ring can seal the gap between the through hole and the screw 405, prevent moisture from entering, further ensure the stability of the docking, improve the durability of the connection, and consolidate the alignment accuracy.

[0035] The outer wall of the fixed plate 402 is fixedly fitted with a guide sleeve 406, which is used to provide guidance for the docking of the precast column 1 and the precast beam 2 and to assist the quick alignment of the components. The bottom surface of the inner wall of the guide sleeve 406 is fixedly installed with a pad 407, which can buffer the impact force during docking and play a role in shock absorption and protection.

[0036] It should be noted that the top of the guide sleeve 406 is slidably fitted with a cover plate 408, and a slide bar is fixedly installed on the inner wall of the cover plate 408. The outer wall of the guide sleeve 406 is provided with a slide groove that matches the slide bar, and the slide bar is located in the slide groove to achieve a sliding connection between the two. The top of the guide sleeve 406 can be closed by the cover plate 408 to reduce the entry of impurities during construction and ensure the cleanliness of the structure and the stability of the function.

[0037] A positioning plate 409 is fixedly connected to the top of the fixing plate 402 for positioning and installation of the fixing plate 402. Threaded sleeves 410 are fixedly installed in the inner cavities of the precast column 1 and the precast beam 2. Bolts 411 are inserted into the inner cavities of the positioning plate 409 and the mounting plate 401, and the bolts 411 are threadedly engaged with the threaded sleeves 410.

[0038] It should be noted that the positioning plate 409 can quickly calibrate the installation position of the fixing plate 402 to ensure installation accuracy. With the cooperation of the bolt 411 and the threaded sleeve 410, the positioning plate 409 and the mounting plate 401 can be firmly fixed on the precast column 1 and the precast beam 2 respectively, providing a stable foundation for subsequent component docking and enhancing the connection reliability between the installation component 4 and the precast component.

[0039] It should also be noted that the bottom surface of the guide sleeve 406 is fixedly connected to an auxiliary support frame 412, which provides additional support for the guide sleeve 406, enhances its installation stability and structural rigidity, and prevents the guide sleeve 406 from deforming or shifting when subjected to force. In addition, the inner cavity of the auxiliary support frame 412 is also fitted with bolts 411, which cooperate with the threaded sleeve 410 inside the precast beam 2 to achieve fixation, ensuring the accuracy and reliability of the guiding function of the guide sleeve 406.

[0040] Please see Figure 1 , Figure 2 The reinforcement component 5 includes a grouting sleeve 501, which is fixedly installed in the inner cavity of the precast beam 2. A grouting pipe 502 and a grout outlet pipe 503 are fixedly installed on the top of the grouting sleeve 501, and the openings of both pipes are flush with the top surface of the precast beam 2.

[0041] It should be noted that the grouting sleeve 501 has a grout outlet 504 at one end near the precast column 1, and the inner cavity of the precast beam 2 has a grout channel that is connected to the grout outlet 504. At the same time, the inner cavities of the mounting plate 401, the embedded block 403, the sleeve block 404, and the fixing plate 402 all have grout holes that are connected to the grout channel. The inner cavity of the precast column 1 has a groove for receiving cement grout. The cement grout injected through the grouting pipe 502 can fill the connection gaps through the grout outlet 504, the grout channel, and the grout holes, and finally form an integral cast structure in the groove of the precast column 1. This allows the precast column 1 and the precast beam 2 to be tightly bonded by the grout, which greatly improves the connection strength and integrity, and enhances the structural bearing capacity and seismic performance.

[0042] It should also be noted that the top of the guide sleeve 406 can be closed before grouting by the cover plate 408. The sliding fit between the cover plate 408 and the guide sleeve 406 can form a closed protection, effectively preventing the cement slurry from overflowing from the guide sleeve 406 during the grouting process. This avoids slurry waste and construction pollution, and ensures that the cement slurry fully fills all connection gaps and slurry channels, ensuring the grouting quality of the reinforcement component 5 and further strengthening the integrity of the connection structure. After the slurry is full, the excess part can be smoothly discharged through the slurry outlet pipe 503.

[0043] The working principle of this utility model is as follows:

[0044] When this utility model is used, firstly, precast columns 1 and precast beams 2 are precast with embedded steel bars 3. Then, during the installation process, the outer walls of the two connecting ends are fixedly installed on the side wall of the precast column 1 by the cooperation of bolts 411 and threaded sleeves 410. At the same time, the mounting plate 401 is fixedly installed on the connecting end of the precast beam 2.

[0045] Subsequently, the precast column 1 and precast beam 2 are installed. The guide sleeve 406 provides precise guidance for the movement of the precast column 1. The pad plate 407 buffers the impact of the connection to avoid damage to the components. At the same time, the embedded block 403 on the mounting plate 401 is inserted into the slot of the sleeve block 404 on the fixing plate 402 to form a mortise and tenon joint structure. The protruding surface of the side wall of the embedded block 403 is locked with the inner wall of the slot, which initially limits the displacement deviation between the two, achieves precise alignment and ensures initial stability, and completes the initial positioning.

[0046] After the embedded block 403 and the sleeve block 404 are engaged, the screw 405 passes through the through hole of both, and its two ends are tightened by nuts to achieve rigid locking, which strengthens the fastness of the tenon and mortise structure. The sealing ring on one side of the nut seals the gap between the through hole and the screw 405, preventing moisture from entering and improving the durability of the connection.

[0047] Slide the cover plate 408 at the top of the closed guide sleeve 406 to prevent construction impurities from entering, and at the same time prepare for subsequent grouting operations.

[0048] Finally, cement grout is injected through the grouting pipe 502 at the top of the grouting sleeve 501. The grout enters the grouting groove of the precast beam 2 through the grouting port 504, and then fills all the connection gaps through the grouting holes on the mounting plate 401, the embedded block 403, the sleeve block 404 and the fixing plate 402, forming an integral cast structure in the groove of the precast column 1. Excess cement grout flows out from the grouting pipe 503. With the cover plate 408, the grout can be prevented from overflowing during grouting, ensuring that the grout is fully filled. After the grout solidifies, the precast column 1 and the precast beam 2 form a tightly integrated whole through the grout, the embedded steel bars 3 and the mounting components 4, improving the connection strength, integrity and seismic performance.

[0049] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A precast reinforced concrete component connection structure, comprising a precast column (1) and a precast beam (2), characterized in that, The precast column (1) is installed on one side of the precast beam (2), and both are fixedly connected by embedded steel bars (3). An installation assembly (4) is fixedly installed between the precast column (1) and the precast beam (2), and a reinforcement assembly (5) for strengthening the connection effect is fixedly installed in the inner cavity of the precast beam (2). The reinforcement component (5) includes a grouting sleeve (501), which is fixedly installed in the inner cavity of the precast beam (2). A grouting pipe (502) and a grout outlet pipe (503) are fixedly installed on the top of the grouting sleeve (501), and the openings of both pipes are flush with the top surface of the precast beam (2).

2. The precast reinforced concrete component connection structure according to claim 1, characterized in that, The installation assembly (4) includes an installation plate (401) and a fixing plate (402). The installation plate (401) and the fixing plate (402) are respectively located on the outer wall of the joint end of the precast column (1) and the precast beam (2). An embedding block (403) and a sleeve block (404) are respectively fixedly installed on the corresponding side of the installation plate (401) and the fixing plate (402). The inner cavity of the sleeve block (404) is provided with a slot, and the embedding block (403) is inserted into the slot to form a tenon and mortise structure.

3. The precast reinforced concrete component connection structure according to claim 2, characterized in that, The inner cavity of the socket block (404) is connected to the screw (405). Both the embedded block (403) and the socket block (404) have through holes, and the screw (405) passes through the through holes.

4. The precast reinforced concrete component connection structure according to claim 2, characterized in that, The outer wall of the fixed plate (402) is fixedly fitted with a guide sleeve (406), and the bottom surface of the inner wall of the guide sleeve (406) is fixedly installed with a pad (407).

5. A precast reinforced concrete component connection structure according to claim 2, characterized in that, The top of the fixing plate (402) is fixedly connected to the positioning plate (409), and the inner cavities of the precast column (1) and the precast beam (2) are both fixedly installed with threaded sleeves (410). The inner cavities of the positioning plate (409) and the mounting plate (401) are both inserted with bolts (411), and the bolts (411) are threadedly engaged with the threaded sleeves (410).

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