A high-rise cantilever concrete assembled structure and installation method

Abstract

The present invention discloses an assembled structure and installation method of high-rise cantilever concrete, including support columns, wherein the total number of the support columns is four, and precast concrete composite cross beam frames 2 are provided on both sides of the tops of the four support columns, and precast concrete composite cross beam frames 1 are provided in the center of the tops of the four support columns, and both sides of the precast concrete composite cross beam frames 1 are fixedly connected with connecting buckle plates. The assembled structure of high-rise cantilever concrete, by adopting the design of precast concrete composite cross beam frames 1 and precast concrete composite cross beam frames 2, combined with the use of connecting buckle plates, connecting clips 1 and connecting clips 2, utilizes the fastening effect of fixing bolts 1 to achieve a firm connection between the cross beam frames, effectively avoids the problem of loose connection and easy loosening, and significantly improves the stability and safety of the entire structure. The support plates, fixing plates and positioning columns provided on the tops of the support columns further enhance the connection strength between the support columns and the cross beam frames.

Description

Technical Field

[0001] The present invention relates to the technical field of prefabricated structures, and in particular to a high-rise cantilevered concrete prefabricated structure and an installation method. Background Art

[0002] With the acceleration of urbanization, high-rise buildings are increasingly appearing in city skylines. The cantilevered structures of high-rise buildings, such as balconies and observation decks, not only provide unique architectural aesthetics but also meet people's demand for space utilization and functional diversification.

[0003] Existing high-rise cantilevered prefabricated structures still face several challenges. Firstly, due to the unique nature of cantilevered structures, their stability and safety are particularly important. Existing prefabricated structural connection methods suffer from insecure connections and prone to loosening, making it difficult to ensure the overall stability and safety of the structure. Secondly, cantilevered structures in high-rise buildings must exhibit high lateral displacement resistance and seismic performance when subjected to external forces such as wind loads and earthquakes. Summary of the Invention

[0004] The purpose of the present invention is to provide a high-rise cantilevered concrete prefabricated structure to solve the problem raised in the above background technology that due to the particularity of the cantilever structure, its stability and safety are particularly important, the existing prefabricated structure connection method has the problem of loose connection and easy loosening, and it is difficult to ensure the overall stability and safety of the structure. The cantilever structure of the high-rise building needs to have a higher anti-lateral displacement ability and seismic performance when it is subjected to external forces such as wind loads and earthquakes.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solution: an assembled structure of a high-rise cantilever concrete, comprising a total of four support columns, wherein the four support columns are provided with precast concrete composite cross beam frames 2 at both sides of the tops of the four support columns, and a precast concrete composite cross beam frame 1 is provided in the center of the tops of the four support columns, and both sides of the precast concrete composite cross beam frame 1 are fixedly connected with connecting buckles, and the top, bottom and center of the two precast concrete composite cross beam frames 2 on the opposite sides are fixedly connected with two connecting clips 2 and connecting clips 1 respectively, and the tops of the precast concrete composite cross beam frames 1 and the precast concrete composite cross beam frames 2 are provided with a top plate, the tops of the support columns are fixedly connected with the support plates, the bottoms of the support plates are provided with fixing plates at both sides, the center of the top of the fixing plate is fixedly connected with a positioning column, the top of the positioning column passes through the interior of the precast concrete composite beam frame 2 and is connected to the precast concrete The top of the fixing plate is fixedly mounted on the support frame, and the fixing plate is fixedly mounted on the support frame at two opposite ends of the fixing plate.

[0006] Preferably, the top of the connecting buckle plate is threadedly connected with a fixing bolt 1, and the bottom of the fixing bolt 1 passes through the connecting card plate 2 and the connecting card plate 1 in sequence and is threadedly connected to the connecting card plate 1.

[0007] Preferably, both sides of the fixing plate are threadedly connected with fixing bolts 2, and the tops of the fixing bolts 2 sequentially pass through the support plate and the precast concrete composite cross beam frame 2 and are threadedly connected to the precast concrete composite cross beam frame 2.

[0008] Preferably, a reinforcing column is fixedly connected to the center between the two supporting columns arranged on the left and right, and a plurality of reinforcing inclined plates are fixedly connected to the tops of the two reinforcing columns arranged on the front and rear, and the tops of the reinforcing inclined plates are in contact with the bottom of the precast concrete composite beam frame.

[0009] Preferably, the elastic component includes a limit head, a fixed block, a connecting rod and a limit spring, the fixed block is fixedly connected to the inner wall of the connecting frame, a movable groove is opened in the center of one side of the limit head, one side of the connecting rod passes through the interior of the movable groove, the other side of the connecting rod is fixedly connected to the fixed block, the other side of the limit head passes through the interior of the limit groove and is clamped with the limit groove, the limit spring is sleeved on the connecting rod, and the two sides of the limit spring are respectively fixedly connected to the fixed block and the limit head.

[0010] Preferably, the top of the top plate is threadedly connected with a fixing bolt three, and the bottom of the fixing bolt three passes through the threaded sleeve, the fixing sleeve and the fixing rod in sequence and is threadedly connected to the top of the fixing rod.

[0011] A method for installing a high-rise cantilevered concrete prefabricated structure comprises the following steps:

[0012] Step 1: First, the four supporting columns are firmly fixed in the predetermined position as the foundation of the entire structure. On the top of the four supporting columns, precast concrete composite beam frame 1 is first installed, which is located in the center position. Then, precast concrete composite beam frame 2 is installed on both sides of the four supporting columns.

[0013] Step 2: Use connecting buckle plates to connect precast concrete composite beam frame 1 with precast concrete composite beam frame 2. By rotating fixing bolt 1, its bottom passes through connecting clip 2 and connecting clip 1 and is threadedly connected to connecting clip 1 to achieve a tight connection between the beam frames.

[0014] Step three: A support plate is fixed on the top of each support column, and fixing plates are set on both sides of the bottom of the support plate. Use fixing bolts 2 to pass through the support plate and precast concrete composite beam frame 2 and connect them to the beam frame with threads to ensure a firm connection between the support plate and the beam frame.

[0015] Step 4: Install a reinforcement column between the left and right support columns to enhance the stability of the overall structure. Install reinforcement inclined plates on the top of the two front and rear reinforcement columns. The top of the reinforcement inclined plates contacts the bottom of the precast concrete composite crossbeam frame to form an oblique support, thereby improving the structure's ability to resist lateral displacement.

[0016] Step five: Install the top plate on the top of the precast concrete composite beam frame one and the precast concrete composite beam frame two. The connecting frame on the welding plate at the bottom of the top plate cooperates with the top block in the groove at the top of the connecting seat. The limit head in the elastic component is engaged with the limit groove to ensure a stable connection between the top plate and the beam frame.

[0017] Step six: Fixing rods are fixed to the center positions of precast concrete composite beam frame 1 and precast concrete composite beam frame 2. Threaded sleeves and fixing sleeves are fixed inside the top plate. The top of the fixing rod passes through the inside of the fixing sleeve and is clamped with the fixing sleeve. Fixing bolt 3 is used to pass through the top plate, threaded sleeve, fixing sleeve and fixing rod and is connected to the top thread of the fixing rod to ensure further tightening between the top plate and the beam frame.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] The high-rise cantilever concrete prefabricated structure adopts the design of precast concrete composite crossbeam frame 1 and precast concrete composite crossbeam frame 2, combined with the use of connecting buckle plates, connecting clamp plate 1 and connecting clamp plate 2, and utilizes the tightening effect of fixing bolts 1 to achieve a firm connection between the crossbeam frames, effectively avoiding the problem of loose connection and easy loosening, and significantly improving the stability and safety of the entire structure. The support plates, fixing plates and positioning columns arranged on the top of the support columns further enhance the connection strength between the support columns and the crossbeam frames, ensuring the overall stability of the structure. The introduction of the design of reinforcing columns and reinforcing inclined plates strengthens the horizontal stability of the structure and significantly improves the structure's anti-lateral displacement capability. In particular, it can effectively resist the influence of external forces and ensure the safety of the building when subjected to wind loads and earthquakes. The precast concrete composite crossbeam frames and the top plate are used in conjunction with the connecting seat, connecting frame and elastic components (including limit heads, fixing blocks, connecting rods and limit springs) to achieve a stable connection between the top plate and the crossbeam frames. Even when subjected to external forces, the elastic components can reduce the vibration and displacement of the structure through the buffering effect, thereby improving the seismic performance of the structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of the present invention;

[0021] Figure 2 For the present invention Figure 1 A partial enlarged schematic diagram;

[0022] Figure 3 For the present invention Figure 1 A partial enlarged schematic diagram of B in the middle;

[0023] Figure 4 This is a structural perspective diagram of the connecting seat of the present invention;

[0024] Figure 5 This is a structural stereogram of the fixing sleeve of the present invention;

[0025] Figure 6 It is a structural schematic diagram of the elastic component of the present invention;

[0026] Figure 7 It is a structural stereogram of the top block of the present invention;

[0027] Figure 8 It is a structural stereogram of the limit head of the present invention.

[0028] In the figure: 1. Support column; 2. Precast concrete composite beam frame 1; 3. Precast concrete composite beam frame 2; 4. Connecting buckle plate; 5. Connecting clamp plate 1; 6. Connecting clamp plate 2; 7. Fixing bolt 1; 8. Reinforcement column; 9. Reinforcement inclined plate; 10. Support plate; 11. Fixing plate; 12. Positioning column; 13. Fixing bolt 2; 14. Fixing rod; 15. Fixing sleeve; 16. Threaded sleeve; 17. Fixing bolt 3; 18. Top plate; 19. Connecting seat; 20. Groove; 21. Welding plate; 22. Connecting frame; 23. Fixing groove; 24. Top block; 25. Limiting groove; 26. Elastic component; 27. Limiting head; 28. Movable groove; 29. ​​Fixing block; 30. Connecting rod; 31. Limiting spring. DETAILED DESCRIPTION

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] See also Figure 1-8The present invention provides a technical solution: an assembled structure of a high-rise cantilevered concrete, comprising a support column 1, a total of four support columns 1, and precast concrete composite cross beam frames 2 3 are arranged on both sides of the top of the four support columns 1. A precast concrete composite cross beam frame 1 2 is arranged in the center of the top of the four support columns 1. Both sides of the precast concrete composite cross beam frame 1 2 are fixedly connected with a connecting buckle plate 4, and the top, bottom and center of the two opposite sides of the two precast concrete composite cross beam frames 2 3 arranged on the left and right are respectively fixedly connected with two connecting clips 2 6 and a connecting clip 1 5. The tops of the precast concrete composite cross beam frames 1 2 and the precast concrete composite cross beam frames 2 3 are provided with a top plate 18, the tops of the support columns 1 are fixedly connected with a support plate 10, and fixed plates 11 are arranged on both sides of the bottom of the support plate 10, and a positioning column 12 is fixedly connected to the center of the top of the fixing plate 11. The top of the positioning column 12 passes through the interior of the precast concrete composite cross beam frame 2 3 and is clamped with the precast concrete composite cross beam frame 2 3. The top of the concrete composite crossbeam frame 23 is fixedly connected to a connecting seat 19 on both sides, a groove 20 is provided in the center of the top of the connecting seat 19, and a top block 24 is fixedly connected to the center of the bottom of the groove 20. The bottom of the top plate 18 is fixedly connected to a welding plate 21 corresponding to the top of the connecting seat 19 on both sides, and the center of the bottom of the welding plate 21 is fixedly connected to a connecting frame 22. The bottom of the connecting frame 22 passes through the interior of the groove 20 and is engaged with the groove 20. A fixing groove 23 is provided in the center of the bottom of the connecting frame 22, and limiting grooves 25 are provided on both sides of the top block 24. The interior of the connecting frame 22 is movably equipped with elastic components 26 on both sides corresponding to the interior of the fixing groove 23. The center positions of the precast concrete composite crossbeam frame 1 and the precast concrete composite crossbeam frame 23 are fixedly connected to a fixing rod 14. The interior of the top plate 18 is fixedly connected to a threaded sleeve 16. The bottom of the top plate 18 is fixedly connected to a fixing sleeve 15 corresponding to the bottom of the threaded sleeve 16. The top of the fixing rod 14 passes through the interior of the fixing sleeve 15 and is engaged with the fixing sleeve 15.

[0031] The top of the connecting buckle plate 4 is threadedly connected with a fixing bolt 7, and the bottom of the fixing bolt 7 passes through the connecting card plate 2 6 and the connecting card plate 1 5 in sequence and is threadedly connected to the connecting card plate 1 5.

[0032] The fixing plate 11 is threadedly connected to the two sides with fixing bolts 2 13 , and the tops of the fixing bolts 2 13 pass through the support plate 10 and the precast concrete composite cross beam frame 2 3 in sequence and are threadedly connected to the precast concrete composite cross beam frame 2 3 .

[0033] A reinforcing column 8 is fixedly connected to the center between the two supporting columns 1 set on the left and right, and a number of reinforcing inclined plates 9 are fixedly connected to the tops of the two reinforcing columns 8 set in the front and back. The tops of the reinforcing inclined plates 9 are in contact with the bottom of the precast concrete composite beam frame 2.

[0034] The elastic component 26 includes a limit head 27, a fixed block 29, a connecting rod 30 and a limit spring 31. The fixed block 29 is fixedly connected to the inner wall of the connecting frame 22. A movable groove 28 is opened in the center of one side of the limit head 27. One side of the connecting rod 30 passes through the interior of the movable groove 28. The other side of the connecting rod 30 is fixedly connected to the fixed block 29. The other side of the limit head 27 passes through the interior of the limit groove 25 and is clamped with the limit groove 25. The limit spring 31 is sleeved on the connecting rod 30, and the two sides of the limit spring 31 are fixedly connected to the fixed block 29 and the limit head 27 respectively.

[0035] The top of the top plate 18 is threadedly connected with a fixing bolt 3 17 , and the bottom of the fixing bolt 3 17 passes through the threaded sleeve 16 , the fixing sleeve 15 and the fixing rod 14 in sequence and is threadedly connected to the top of the fixing rod 14 .

[0036] A method for installing a high-rise cantilevered concrete prefabricated structure comprises the following steps:

[0037] Step 1: First, the four support columns 1 are firmly fixed in the predetermined position as the foundation of the entire structure. On the top of the four support columns 1, the precast concrete composite beam frame 1 2 is first installed, which is located in the center position. Subsequently, the precast concrete composite beam frame 2 3 is installed on both sides of the four support columns 1.

[0038] Step 2: Use the connecting buckle plate 4 to connect the precast concrete composite beam frame 1 2 and the precast concrete composite beam frame 2 3. By rotating the fixing bolt 1 7, the bottom of the bolt passes through the connecting clip 2 6 and the connecting clip 1 5 and is threadedly connected to the connecting clip 1 5 to achieve a fastened connection between the beam frames.

[0039] Step three: A support plate 10 is fixed to the top of each support column 1, and fixing plates 11 are set on both sides of the bottom of the support plate 10. Use fixing bolts 13 to pass through the support plate 10 and the precast concrete composite beam frame 3 and connect them with the beam frame through threads to ensure a firm connection between the support plate 10 and the beam frame.

[0040] Step 4: Install a reinforcement column 8 between the left and right support columns 1 to enhance the stability of the overall structure. Install reinforcement inclined plates 9 on the top of the two front and rear reinforcement columns 8. The top of the reinforcement inclined plates 9 contacts the bottom of the precast concrete composite crossbeam frame 2 to form an oblique support, thereby improving the structure's ability to resist lateral displacement.

[0041] Step five, install the top plate 18 on the top of the precast concrete composite beam frame 1 2 and the precast concrete composite beam frame 2 3, and the connecting frame 22 on the welding plate 21 at the bottom of the top plate 18 cooperates with the top block 24 in the groove 20 at the top of the connecting seat 19. The limit head 27 in the elastic component 26 is engaged with the limit groove 25 to ensure a stable connection between the top plate 18 and the beam frame.

[0042] Step six: fixing rods 14 are fixed to the center positions of precast concrete composite beam frame 1 2 and precast concrete composite beam frame 2 3. Threaded sleeves 16 and fixing sleeves 15 are fixed inside the top plate 18. The top of the fixing rod 14 passes through the inside of the fixing sleeve 15 and is clamped with the fixing sleeve 15. Fixing bolts 3 17 are used to pass through the top plate 18, threaded sleeve 16, fixing sleeve 15 and fixing rod 14 and are threadedly connected to the top of the fixing rod 14 to ensure further tightening between the top plate 18 and the beam frame.

[0043] In summary: the assembled structure of the high-rise cantilever concrete adopts the design of precast concrete composite cross beam frame 1 2 and precast concrete composite cross beam frame 2 3, combined with the use of connecting buckle plate 4, connecting clamp plate 1 5 and connecting clamp plate 2 6, and the fastening effect of fixing bolt 1 7 to achieve a firm connection between the cross beam frames, effectively avoiding the problem of loose connection and easy loosening, and significantly improving the stability and safety of the entire structure. The support plate 10, fixing plate 11 and positioning column 12 arranged on the top of the support column 1 further enhance the connection strength between the support column 1 and the cross beam frame, ensuring the overall stability of the structure, and introducing the reinforcing column 8 and the adding column 12. The design of the fixed inclined plate 9 strengthens the stability of the structure in the horizontal direction and significantly improves the structure's ability to resist lateral displacement, especially when subjected to wind loads and earthquakes. It can effectively resist the influence of external forces and ensure the safety of the building. The precast concrete composite beam frame and the top plate 18 are connected by the use of the connecting seat 19, the connecting frame 22 and the elastic component 26 (including the limit head 27, the fixing block 29, the connecting rod 30 and the limit spring 31) to achieve a stable connection between the top plate 18 and the beam frame. Even when subjected to external forces, the buffering effect of the elastic component 26 can reduce the vibration and displacement of the structure, thereby improving the seismic performance of the structure.

[0044] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0045] While 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 these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A high-rise cantilevered concrete assembled structure, comprising a support column (1), characterized in that: The total number of support columns (1) is four. Precast concrete composite cross beam frames (2) are provided at both sides of the tops of the four support columns (1). Precast concrete composite cross beam frames (1) are provided at the center of the tops of the four support columns (1). Both sides of the precast concrete composite cross beam frames (1) are fixedly connected with connecting buckle plates (4). The tops, bottoms and centers of the two precast concrete composite cross beam frames (3) on the left and right are respectively fixedly connected with two connecting clips (6) and one connecting clip (5). The precast concrete composite cross beam frames (2) and The top of the precast concrete composite cross beam frame 2 (3) is provided with a top plate (18), the top of the support column (1) is fixedly connected to the support plate (10), the bottom of the support plate (10) is provided with fixed plates (11) on both sides, the center of the top of the fixed plate (11) is fixedly connected to a positioning column (12), the top of the positioning column (12) passes through the interior of the precast concrete composite cross beam frame 2 (3) and is clamped with the precast concrete composite cross beam frame 2 (3), and the top of the precast concrete composite cross beam frame 2 (3) is fixedly connected to a connecting seat (19) on both sides. The center of the top of the connecting seat (19) is provided with a groove (20), the center of the bottom of the groove (20) is fixedly connected to a top block (24), the bottom of the top plate (18) is fixedly connected to the top of the connecting seat (19) at the two sides thereof, and the center of the bottom of the welding plate (21) is fixedly connected to a connecting frame (22), the bottom of the connecting frame (22) passes through the inside of the groove (20) and is engaged with the groove (20), the center of the bottom of the connecting frame (22) is provided with a fixing groove (23), and both sides of the top block (24) are provided with limited The connecting frame (22) is provided with a positioning groove (25), and elastic components (26) are movably assembled on both sides of the corresponding fixing groove (23). The precast concrete composite crossbeam frame 1 (2) and the precast concrete composite crossbeam frame 2 (3) are fixedly connected to the center position with a fixing rod (14). The interior of the top plate (18) is fixedly connected with a threaded sleeve (16), and the bottom of the top plate (18) is fixedly connected with the bottom of the threaded sleeve (16) and is fixedly connected with a fixing sleeve (15). The top of the fixing rod (14) passes through the interior of the fixing sleeve (15) and is clamped with the fixing sleeve (15).

2. The high-rise cantilevered concrete assembled structure according to claim 1, characterized in that: The top of the connecting buckle plate (4) is threadedly connected to a fixing bolt 1 (7), and the bottom of the fixing bolt 1 (7) passes through the connecting clamp plate 2 (6) and the connecting clamp plate 1 (5) in sequence and is threadedly connected to the connecting clamp plate 1 (5).

3. The high-rise cantilevered concrete assembled structure according to claim 1, characterized in that: The fixing plate (11) is threadedly connected to fixing bolts 2 (13) at both sides, and the top of the fixing bolts 2 (13) passes through the support plate (10) and the precast concrete composite cross beam frame 2 (3) in sequence and is threadedly connected to the precast concrete composite cross beam frame 2 (3).

4. The high-rise cantilevered concrete assembled structure according to claim 1, characterized in that: A reinforcing column (8) is fixedly connected to the center between the two left and right support columns (1), and a plurality of reinforcing inclined plates (9) are fixedly connected to the tops of the two front and rear reinforcing columns (8), wherein the tops of the reinforcing inclined plates (9) are in contact with the bottom of the precast concrete composite cross beam frame (2).

5. The high-rise cantilevered concrete assembled structure according to claim 1, characterized in that: The elastic component (26) includes a limit head (27), a fixed block (29), a connecting rod (30) and a limit spring (31), wherein the fixed block (29) is fixedly connected to the inner wall of the connecting frame (22), a movable groove (28) is provided at the center of one side of the limit head (27), one side of the connecting rod (30) passes through the inside of the movable groove (28), the other side of the connecting rod (30) is fixedly connected to the fixed block (29), the other side of the limit head (27) passes through the inside of the limit groove (25) and is engaged with the limit groove (25), the limit spring (31) is sleeved on the connecting rod (30), and the two sides of the limit spring (31) are fixedly connected to the fixed block (29) and the limit head (27) respectively.

6. The high-rise cantilevered concrete assembled structure according to claim 4, characterized in that: The top of the top plate (18) is threadedly connected to a fixing bolt three (17), and the bottom of the fixing bolt three (17) passes through the threaded sleeve (16), the fixing sleeve (15) and the fixing rod (14) in sequence and is threadedly connected to the top of the fixing rod (14).

7. The method for installing a high-rise cantilevered concrete assembled structure according to claim 6, characterized in that: The steps include: Step 1: First, four support columns (1) are firmly fixed at predetermined positions as the foundation of the entire structure. On top of the four support columns (1), precast concrete composite cross beam frame 1 (2) is first installed, which is located at the center. Subsequently, precast concrete composite cross beam frame 2 (3) is installed on both sides of the four support columns (1). Step 2: Use the connecting buckle plate (4) to connect the precast concrete composite cross beam frame 1 (2) and the precast concrete composite cross beam frame 2 (3), and rotate the fixing bolt 1 (7) so that its bottom passes through the connecting clamp plate 2 (6) and the connecting clamp plate 1 (5) and is threadedly connected to the connecting clamp plate 1 (5), thereby achieving a fastened connection between the cross beam frames; Step 3: A support plate (10) is fixed to the top of each support column (1), and fixing plates (11) are provided on both sides of the bottom of the support plate (10). Fixing bolts (13) are passed through the support plate (10) and the precast concrete composite crossbeam frame (3) and are threadedly connected to the crossbeam frame to ensure a stable connection between the support plate (10) and the crossbeam frame; Step 4: Install a reinforcement column (8) between the left and right support columns (1) to enhance the stability of the overall structure. Install a reinforcement inclined plate (9) on the top of the two reinforcement columns (8) arranged in front and behind. The top of the reinforcement inclined plate (9) contacts the bottom of the precast concrete composite cross beam frame (2) to form an oblique support, thereby improving the anti-lateral displacement capability of the structure. Step 5: Install the top plate (18) on the top of the precast concrete composite cross beam frame 1 (2) and the precast concrete composite cross beam frame 2 (3); the connecting frame (22) on the welding plate (21) at the bottom of the top plate (18) cooperates with the top block (24) in the groove (20) at the top of the connecting seat (19); and the limit head (27) in the elastic component (26) is engaged with the limit groove (25) to ensure a stable connection between the top plate (18) and the cross beam frame; Step 6: A fixing rod (14) is fixed to the center position of the precast concrete composite crossbeam frame 1 (2) and the precast concrete composite crossbeam frame 2 (3), a threaded sleeve (16) and a fixing sleeve (15) are fixed inside the top plate (18), the top of the fixing rod (14) passes through the inside of the fixing sleeve (15) and is clamped with the fixing sleeve (15), and a fixing bolt 3 (17) is used to pass through the top plate (18), the threaded sleeve (16), the fixing sleeve (15) and the fixing rod (14) and is threadedly connected to the top of the fixing rod (14) to ensure further tightening between the top plate (18) and the crossbeam frame.

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