Public building anti-seismic composite beam connecting structure and method

Abstract

The application discloses a kind of public building anti-seismic composite beam connecting structure and method, it is related to the technical field of anti-seismic composite beam.The present application includes connecting device main body, the top of connecting device main body is equipped with support plate, the inside of support plate is equipped with clamping device, the top of support plate is equipped with four telescopic rods, the top of four telescopic rods is equipped with U-shaped plate, the inside of U-shaped plate is equipped with fixing device.The present application places the end of composite beam on the top of support plate by staff, staff rotates rotating rod, so that the clamping plate is close to each other, so as to clamp composite beam, by setting U-shaped plate, the clamping plate slides in fixed groove, when push rod and fixed column contact, so that the clamping plate is clamped in the inside of clamping groove, so as to fix the top of composite beam, reduce the use of bolt, improve the fixing effect of connecting structure to composite beam, reduce the probability of safety accident.

Description

Technical Field

[0001] This invention belongs to the field of seismic composite beams, specifically, it relates to a connection structure and method for seismic composite beams in public buildings. Background Technology

[0002] A beam composed of two different materials or different processes is called a composite beam, also known as a combined beam. Some main beams are made of one material, while the bridge deck connecting the main beams is made of another material. There are also composite beams composed of precast reinforced concrete beams or prestressed concrete beams and in-situ cast reinforced concrete bridge decks. Steel-concrete composite beams mainly use shear connectors between the steel beams and concrete flanges to resist the uplift and relative slippage at the interface, making them work together as a whole. This type of composite beam has good seismic resistance.

[0003] The existing composite beam connection structure is relatively simple and has a single function. It is basically fixed by bolts and fixing plates. Over a long period of use, the bolts may rust or loosen, resulting in unstable connection between composite beams and easily causing safety accidents.

[0004] In view of this, the present invention is proposed. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a seismic-resistant composite beam connection structure and method for public buildings. This invention solves the problems of existing composite beam connection structures being relatively simple, having limited functions, and experiencing bolt corrosion or loosening after long-term use.

[0006] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by the present invention is as follows:

[0007] A seismic-resistant composite beam connection structure for public buildings includes: a main body of a connection device, a support plate installed on the top of the main body of the connection device, a clamping device installed inside the support plate, four telescopic rods installed on the top of the support plate, a U-shaped plate installed between the tops of the four telescopic rods, and a fixing device installed inside the U-shaped plate.

[0008] The clamping device includes a rotating rod that rotatably engages inside the support plate and extends to the outside of the support plate. Both ends of the rotating rod located on the inner surface of the support plate are equipped with bevel gear one. The surface of bevel gear one is meshed with bevel gear two. The interior of bevel gear two is equipped with a threaded rod. Both ends of the surface of the threaded rod are threaded with threaded blocks. The top of the support plate has four moving slots. The threaded blocks slide inside the moving slots. The top of the threaded blocks is equipped with a clamping plate. A slot is opened on the top of one side of the clamping plate. The slot is adapted to the fixing device.

[0009] Optionally, the fixing device includes a pressing component and a fixing component. The fixing component includes two limiting blocks 1. The limiting blocks 1 are installed inside the U-shaped plate. A moving rod is slidably fitted inside the limiting blocks 1. A sliding rod is installed at one end of the moving rod. A push plate is installed on the surface of the sliding rod. Two springs 2 are installed inside the U-shaped plate. The side of the springs 2 closest to the push plate is fixedly connected to the push plate. A sliding groove is opened on the right side of the U-shaped plate. The sliding rod slides inside the sliding groove. A locking plate is installed at the end of the moving rod that extends to the outside of the U-shaped plate.

[0010] Optionally, the pressing assembly includes a push rod that slides on the bottom of the U-shaped plate. A U-shaped fixing plate is installed at one end of the push rod that extends into the interior of the U-shaped plate. L-shaped fixing blocks are installed at both ends of the inner cavity of the U-shaped fixing plate. A spring is installed inside the U-shaped plate. The end of the spring near the U-shaped fixing plate is fixedly connected to the U-shaped fixing plate. The sliding rod is movably disposed in the inner cavity of the L-shaped fixing block.

[0011] Optionally, a second limiting block is installed inside the U-shaped plate, and the push rod slides in conjunction with the second limiting block.

[0012] Optionally, the bottom of the inner wall of the U-shaped plate is provided with four fixing grooves, the clamping plate slides in the fixing grooves, and the card plate is engaged with the clamping plate through the card groove.

[0013] Optionally, a fixing post is installed on the top of the support plate, and the fixing post corresponds to the push rod.

[0014] A method for implementing a seismic-resistant composite beam connection structure for public buildings, including the aforementioned seismic-resistant composite beam connection structure for public buildings, is as follows:

[0015] In use, the operator places the combined beam on top of the support plate. The operator rotates the rotating rod, which in turn rotates bevel gear one, which in turn rotates bevel gear two, which in turn rotates the threaded rod. The threaded rod then moves the threaded block, which in turn moves the clamping plate. When the clamping plate moves into the fixed groove, the operator presses down on the U-shaped plate, causing the clamping plate to slide within the fixed groove. The movement of the U-shaped plate moves the push rod downwards. When the push rod reaches contact with the fixed column, the U-shaped plate continues to move downwards. At this point, the push rod moves the U-shaped fixed plate and the L-shaped fixed block, causing the sliding rod to disengage from the inner wall of the L-shaped fixed block. Under the action of spring two, the two push plates move relative to each other. The movement of the push plates moves the moving rod, which in turn moves the... The moving plate moves, and when it moves into the slot, the clamping plate is fixed. When it is necessary to release the clamping plate, the inner wall of the L-shaped fixing block is at the top of the sliding rod. The operator moves the sliding rod, which in turn moves the moving rod and the clamping plate. When the clamping plate moves out of the slot, the sliding rod approaches the inner wall of the U-shaped fixing plate. At this time, the operator moves the U-shaped plate upward, causing the push rod to move away from the fixing post. Under the action of the spring, the U-shaped fixing plate moves downward, which in turn moves the L-shaped fixing block. When the L-shaped fixing block moves downward and approaches the sliding rod, the sliding rod moves into the interior of the L-shaped fixing block. At this time, the clamping plate disengages from the fixing slot. The operator then rotates the rotating rod in the opposite direction, causing the clamping plates to move away from each other, thus supporting the U-shaped plate.

[0016] By adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art:

[0017] The workers place one end of the composite beam on top of the support plate, and then rotate the rotating rod to bring the clamping plates closer together, thereby clamping the composite beam.

[0018] The U-shaped plate allows the clamping plate to slide inside the fixing groove. When the push rod contacts the fixing column, the clamping plate engages inside the groove, thereby fixing the top of the composite beam. This reduces the use of bolts, improves the fixing effect of the connection structure on the composite beam, and lowers the probability of safety accidents.

[0019] By using limiting plates and movable sleeves, deviations from the design often occur during actual construction. The installation of composite beams also presents this problem. Movable sleeves can solve the issue of insufficient length compensation during composite beam docking. When the U-shaped plate descends and works with the support plate to fix the composite beam, a wedge-shaped drive block drives a wedge-shaped passive block to bring the movable sleeves closer together until they are in contact, achieving automatic docking of the composite beam. After docking, axially fixed bolts abut the limiting plate, enhancing the composite beam's anti-slip capability on the support plate. When the composite beam exhibits axial movement or a tendency to slip, a reverse force can be applied to prevent slippage. Previously, fixation was primarily done on the side, often relying on shear fatigue, leading to insufficient anti-slip capability and loosening at the docking joint. Axially fixed bolts ensure anti-slip capability, transforming shear fatigue into compressive fatigue.

[0020] By setting up an elastic tenon, the tenon and groove of the end of the limiting sleeve can be inserted and connected, which can achieve a fixing effect. Even if the fixing bolt fails, the stability of the connection structure can be effectively ensured.

[0021] The specific embodiments of the present invention will now be described in further detail with reference to the accompanying drawings. Attached Figure Description

[0022] The accompanying drawings described below are merely some embodiments. Those skilled in the art can obtain other drawings based on these drawings without any creative effort.

[0023] In the picture:

[0024] Figure 1 This is a front view of the present invention.

[0025] Figure 2 This is a side view of the present invention;

[0026] Figure 3 This is a schematic diagram of the side cross-sectional structure of the U-shaped plate of the present invention;

[0027] Figure 4 This is a schematic diagram of the side cross-sectional structure of the U-shaped plate of the present invention;

[0028] Figure 5 This is a schematic diagram of the support plate of the present invention;

[0029] Figure 6 This is a structural schematic diagram of the combined beam when the support plate and U-shaped plate of the present invention are fixed;

[0030] Figure 7 This is a diagram showing the connection relationship between the movable sleeve and the elastic tenon of the present invention;

[0031] Figure 8This is a top view of the movable sleeve end fitting together according to the present invention.

[0032] The attached diagram lists the components represented by each number as follows:

[0033] 1. Connecting device body; 2. Support plate; 3. Telescopic rod; 4. Rotating rod; 5. U-shaped plate; 51. Wedge-shaped drive block; 52. Moving sleeve; 53. Wedge-shaped passive block; 54. Limiting plate; 55. Fixing bolt; 56. Elastic tenon; 6. Sliding groove; 7. Sliding rod; 8. Fixing groove; 9. Clamping plate; 10. Moving groove; 11. Fixing column; 12. Push rod; 13. Clamping plate; 14. Clamping groove; 15. L-shaped fixing block; 16. U-shaped fixing plate; 17. Spring one; 18. Push plate; 19. Moving rod; 20. Limiting block one; 21. Spring two; 22. Bevel gear one; 23. Bevel gear two; 24. Threaded rod; 25. Threaded block; 26. Limiting block two.

[0034] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the invention in any way, but rather to illustrate the concept of the invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0035] The invention will now be described in further detail with reference to the accompanying drawings.

[0036] Please see Figure 1-5 As shown, this embodiment provides a seismic-resistant composite beam connection structure for public buildings, including a connection device body 1, a support plate 2 installed on the top of the connection device body 1, a clamping device installed inside the support plate 2, four telescopic rods 3 installed on the top of the support plate 2, a U-shaped plate 5 installed between the tops of the four telescopic rods 3, and a fixing device installed inside the U-shaped plate 5.

[0037] The clamping device includes a rotating rod 4, which is rotatably fitted inside the support plate 2 and extends to the outside of the support plate 2. Both ends of the rotating rod 4 located on the inner surface of the support plate 2 are equipped with bevel gear 1 22. The surface of bevel gear 1 22 is meshed with bevel gear 23. The inside of bevel gear 23 is equipped with a threaded rod 24. Both ends of the surface of the threaded rod 24 are threadedly fitted with threaded blocks 25. The top of the support plate 2 has four moving grooves 10. The threaded blocks 25 slide inside the moving grooves 10. The top of the threaded blocks 25 is equipped with a clamping plate 13. The top of one side of the clamping plate 13 has a slot 14, which is adapted to the fixing device.

[0038] One application of this embodiment is as follows: During use, the operator places the combined beam on top of the support plate 2. The operator rotates the rotating rod 4, which drives the first bevel gear 22 to rotate. The first bevel gear 22 drives the second bevel gear 23 to rotate, which in turn drives the threaded rod 24 to rotate. The threaded rod 24 then moves the threaded block 25, which in turn moves the clamping plate 13. When the clamping plate 13 moves into the fixed groove 8, the operator presses down on the U-shaped plate 5, causing the clamping plate 13 to slide inside the fixed groove 8. The movement of the U-shaped plate 5 drives the push rod 12 to move downward. When the push rod 12 moves downward and contacts the fixed column 11, the U-shaped plate 5 continues to move downward. At this time, the push rod 12 drives the U-shaped fixed plate 16 and the L-shaped fixed block 15 to move, causing the sliding rod 7 to disengage from the inner wall of the L-shaped fixed block 15. Under the action of the second spring 21, the two push plates 18 move relative to each other, and the movement of the push plates 18 drives the moving rod 19 to move. The moving rod 19 moves, causing the clamping plate 9 to move. When the clamping plate 9 moves into the slot 14, the clamping plate 13 is fixed. When it is necessary to release the clamping plate 13, the inner wall of the L-shaped fixing block 15 is at the top of the sliding rod 7. The operator moves the sliding rod 7, which moves the moving rod 19 and the clamping plate 9. When the clamping plate 9 moves out of the slot 14, the sliding rod 7 approaches the inner wall of the U-shaped fixing plate 16. At this time, the operator moves the U-shaped plate 5 upward, causing the push rod 12 to move away from the fixing post 11. Under the action of the spring 17, the U-shaped fixing plate 16 moves downward. The movement of the U-shaped fixing plate 16 causes the L-shaped fixing block 15 to move. When the L-shaped fixing block 15 moves downward and approaches the sliding rod 7, the sliding rod 7 moves into the interior of the L-shaped fixing block 15. At this time, the clamping plate 13 is disengaged from the interior of the fixing slot 8. The operator rotates the rotating rod 4 in the opposite direction, causing the clamping plates 13 to move away from each other, thereby supporting the U-shaped plate 5.

[0039] The fixing device in this embodiment includes a pressing component and a fixing component. The fixing component includes two limiting blocks 20, which are installed inside the U-shaped plate 5. A moving rod 19 is slidably fitted inside the limiting block 20. A sliding rod 7 is installed at one end of the moving rod 19. A push plate 18 is installed on the surface of the sliding rod 7. Two springs 21 are installed inside the U-shaped plate 5. The side of the springs 21 closest to the push plate 18 is fixedly connected to the push plate 18. A sliding groove 6 is opened on the right side of the U-shaped plate 5, and the sliding rod 7 is inside the sliding groove 6. The sliding rod 19 extends to the outside of the U-shaped plate 5 and is equipped with a locking plate 9. The pressing assembly includes a push rod 12, which is slidably fitted to the bottom of the U-shaped plate 5. A U-shaped fixing plate 16 is installed at the end of the push rod 12 that extends into the U-shaped plate 5. L-shaped fixing blocks 15 are installed at both ends of the inner cavity of the U-shaped fixing plate 16. A spring 17 is installed inside the U-shaped plate 5. The end of the spring 17 near the U-shaped fixing plate 16 is fixedly connected to the U-shaped fixing plate 16. The sliding rod 7 is movably disposed in the inner cavity of the L-shaped fixing block 15. The worker presses down on the U-shaped plate 5, causing the clamping plate 13 to slide inside the fixing groove 8. The movement of the U-shaped plate 5 drives the push rod 12 to move downward. When the push rod 12 moves downward and contacts the fixing post 11, the U-shaped plate 5 continues to move downward. At this time, the push rod 12 drives the U-shaped fixing plate 16 and the L-shaped fixing block 15 to move, causing the sliding rod 7 to disengage from the inner wall of the L-shaped fixing block 15. Under the action of the spring 21, the two push plates 18 move relative to each other. The movement of the push plates 18 drives the moving rod 19 to move, and the movement of the moving rod 19 drives the clamping plate 9 to move. When the clamping plate 9 moves into the groove 14, the clamping plate 13 is fixed.

[0040] In this embodiment, a limiting block 26 is installed inside the U-shaped plate 5, and the push rod 12 slides in conjunction with the limiting block 26. The limiting block 26 can limit the push rod 12 and maintain its stability during operation.

[0041] In this embodiment, the bottom of the inner wall of the U-shaped plate 5 is provided with four fixing grooves 8. The clamping plate 13 is slidably engaged with the fixing grooves 8, and the locking plate 9 is engaged with the clamping plate 13 through the locking groove 14. When the clamping plate 13 moves into the inside of the fixing groove 8, the operator presses down on the U-shaped plate 5, causing the clamping plate 13 to slide inside the fixing groove 8.

[0042] In this embodiment, a fixing post 11 is installed on the top of the support plate 2, and the fixing post 11 corresponds to the push rod 12. When the push rod 12 moves downward and contacts the fixing post 11, the U-shaped plate 5 continues to move downward.

[0043] An implementation method for a seismic-resistant composite beam connection structure in a public building, the specific operation of which is as follows:

[0044] Step 1: The staff places the combined beam on top of the support plate 2. The staff rotates the rotating rod 4. The rotation of the rotating rod 4 drives the first bevel gear 22 to rotate. The rotation of the first bevel gear 22 drives the second bevel gear 23 to rotate. The rotation of the second bevel gear 23 drives the threaded rod 24 to rotate. The rotation of the threaded rod 24 drives the threaded block 25 to move. The movement of the threaded block 25 drives the clamping plate 13 to move.

[0045] Step 2: When the clamping plate 13 moves into the fixed groove 8, the worker presses down on the U-shaped plate 5, causing the clamping plate 13 to slide inside the fixed groove 8. The movement of the U-shaped plate 5 drives the push rod 12 to move downward.

[0046] When the push rod 12 moves downward and contacts the fixed post 11, the U-shaped plate 5 continues to move downward. The push rod 12 drives the U-shaped fixed plate 16 and the L-shaped fixed block 15 to move upward relative to the U-shaped plate 15, so that the sliding rod 7 disengages from the inner wall of the L-shaped fixed block 15. Under the action of the spring 21, the two push plates 18 move relative to each other. The movement of the push plate 18 drives the moving rod 19 to move, and the movement of the moving rod 19 drives the clamping plate 9 to move.

[0047] Step 3: When the card plate 9 moves into the slot 14, the clamping plate 13 is fixed under the action of the second spring 21.

[0048] Step 4: When it is necessary to release the clamp 13, the inner wall of the L-shaped fixing block 15 is on the top side of the sliding rod 7. The operator moves the sliding rod 7, and the movement of the sliding rod 7 drives the moving rod 19 and the clamping plate 9 to move. When the clamping plate 9 moves out of the inside of the slot 14 to the bottom of the inner side of the L-shaped fixing block 15, the sliding rod 7 approaches the inner wall of the U-shaped fixing plate 16.

[0049] The worker moves the U-shaped plate 5 upward, so that the push rod 12 moves away from the fixed column 11. Under the action of the spring 17, the U-shaped fixed plate 16 moves downward. The movement of the U-shaped fixed plate 16 drives the L-shaped fixed block 15 to move.

[0050] When the L-shaped fixing block 15 moves downward and approaches the sliding rod 7, the sliding rod 7 moves into the interior of the L-shaped fixing block 15. At this time, the clamping plate 13 is completely disengaged from the interior of the fixing groove 8.

[0051] The operator rotates the rotating rod 4 in the opposite direction, causing the clamping plates 13 to move away from each other, thereby separating the U-shaped plate 5.

[0052] In this embodiment, as Figures 6 to 8 As shown, a limiting plate 54 and a movable sleeve 52 slidably disposed outside the limiting plate 54 are fixedly installed at the end of the composite beam. A wedge-shaped passive block 53 is provided on the top of the movable sleeve 52, and multiple fixing bolts 55 are provided at the end away from the limiting plate 54. The multiple fixing bolts 55 abut against the fixed limiting plate 54.

[0053] The support plate 2 is provided with a groove for the movable sleeve 52 to move;

[0054] The bottom of the U-shaped plate 5 is provided with two sets of symmetrically distributed wedge-shaped driving blocks 51, which are used to drive the wedge-shaped passive blocks 53 to move closer to each other within the support plate 2.

[0055] As the U-shaped plate 5 descends, the wedge-shaped drive block 51 acts on the wedge-shaped passive block 53 at the top of the corresponding moving sleeve 52, gradually approaching the limiting plate 54 until the two limiting plates 54 are in contact with each other. At this time, the bottom of the U-shaped plate 5 presses / contacts the top of the composite beam. By adjusting the fixing bolt 55, the end located at the temporal part of the moving sleeve 52 abuts against the opposite side end face of the limiting plate 54, thereby improving the anti-slip capability of the composite beam.

[0056] In this embodiment, the end of the movable sleeve 52 is provided with multiple mortises, and the bottom of the U-shaped plate 5 is provided with an elastic tenon 56 for connecting the mortises of the two sets of movable sleeves 52. The elastic tenon 56 first contacts the end of the movable sleeve 52 before the two movable sleeves 52 come into contact, so that the elastic tenon 56 will be compressed first. When the two movable sleeves 52 come into contact, the elastic tenon 56 will be inserted into the mortises at the end of the limiting plate 52 under the action of the spring, thereby realizing the axial connection and fixation of the composite beam.

[0057] This invention is not limited to the embodiments described above. Anyone should understand that structural changes made under the guidance of this invention, and any technical solutions that are the same as or similar to this invention, fall within the protection scope of this invention. Technical aspects, shapes, and structures not described in detail in this invention are all publicly known technologies.

Claims

1. A seismic-resistant composite beam connection structure for public buildings, characterized in that, include: The main body of the connecting device (1) is equipped with a support plate (2) on the top of the main body of the connecting device (1). A clamping device is installed inside the support plate (2). Four telescopic rods (3) are installed on the top of the support plate (2). A U-shaped plate (5) is installed between the tops of the four telescopic rods (3). A fixing device is installed inside the U-shaped plate (5). The clamping device includes a rotating rod (4), which is rotatably fitted inside the support plate (2) and extends to the outside of the support plate (2). Both ends of the rotating rod (4) located on the inner surface of the support plate (2) are equipped with bevel gear 1 (22). The surface of bevel gear 1 (22) is meshed with bevel gear 2 (23). The interior of bevel gear 2 (23) is equipped with a threaded rod (24). Both ends of the surface of the threaded rod (24) are threaded with threaded blocks (25). The top of the support plate (2) is provided with four moving slots (10). The threaded blocks (25) slide inside the moving slots (10). The top of the threaded blocks (25) is equipped with a clamping plate (13). The top of one side of the clamping plate (13) is provided with a slot (14). The slot (14) is adapted to the fixing device. The fixing device includes a pressing component and a fixing component. The fixing component includes two limiting blocks (20). The limiting blocks (20) are installed inside the U-shaped plate (5). A moving rod (19) is slidably fitted inside the limiting blocks (20). A sliding rod (7) is installed at one end of the moving rod (19). A push plate (18) is installed on the surface of the sliding rod (7). Two springs (21) are installed inside the U-shaped plate (5). The side of the springs (21) near the push plate (18) is fixedly connected to the push plate (18). A sliding groove (6) is opened on the right side of the U-shaped plate (5). The sliding rod (7) slides inside the sliding groove (6). A locking plate (9) is installed at one end of the moving rod (19) extending to the outside of the U-shaped plate (5).

2. The seismic-resistant composite beam connection structure for public buildings according to claim 1, characterized in that, The pressing assembly includes a push rod (12), which is slidably fitted at the bottom of the U-shaped plate (5). One end of the push rod (12) extending into the interior of the U-shaped plate (5) is equipped with a U-shaped fixing plate (16). Both ends of the inner cavity of the U-shaped fixing plate (16) are equipped with L-shaped fixing blocks (15). A spring (17) is installed inside the U-shaped plate (5). The end of the spring (17) near the U-shaped fixing plate (16) is fixedly connected to the U-shaped fixing plate (16). A sliding rod (7) is movably disposed in the inner cavity of the L-shaped fixing block (15).

3. The seismic-resistant composite beam connection structure for public buildings according to claim 2, characterized in that, The U-shaped plate (5) is equipped with a limiting block two (26), and the push rod (12) slides with the limiting block two (26).

4. The seismic-resistant composite beam connection structure for public buildings according to claim 3, characterized in that, The inner wall of the U-shaped plate (5) has four fixing grooves (8) at the bottom. The clamping plate (13) slides with the fixing grooves (8), and the card plate (9) is engaged with the clamping plate (13) through the card slot (14).

5. The seismic-resistant composite beam connection structure for public buildings according to claim 4, characterized in that, The top of the support plate (2) is equipped with a fixed column (11), which corresponds to the push rod (12).

6. The seismic-resistant composite beam connection structure for public buildings according to claim 5, characterized in that, The end of the composite beam is fixedly installed with a limiting plate (54) and a movable sleeve (52) slidably disposed outside the limiting plate (54). The top of the movable sleeve (52) is provided with a wedge-shaped passive block (53), and the end away from the limiting plate (54) is provided with multiple fixing bolts (55). The multiple fixing bolts (55) abut against the fixed limiting plate (54). The bottom of the U-shaped plate (5) is provided with two sets of symmetrically distributed wedge-shaped driving blocks (51) for driving the wedge-shaped passive blocks (53) to move closer to each other within the support plate (2).

7. A seismic-resistant composite beam connection structure for public buildings according to claim 6, characterized in that, The end of the movable sleeve (52) is provided with multiple mortises, and the bottom of the U-shaped plate (5) is provided with an elastic tenon (56) for connecting the mortises of the two sets of movable sleeves (52).

8. A method for implementing a seismic-resistant composite beam connection structure for public buildings, characterized in that: Including the seismic-resistant composite beam connection structure for public buildings as described in claim 7, the specific operation is as follows: Step 1: The staff places the composite beam on top of the support plate (2). The staff rotates the rotating rod (4). The rotation of the rotating rod (4) drives the first bevel gear (22) to rotate. The rotation of the first bevel gear (22) drives the second bevel gear (23) to rotate. The rotation of the second bevel gear (23) drives the threaded rod (24) to rotate. The rotation of the threaded rod (24) drives the threaded block (25) to move. The movement of the threaded block (25) drives the clamping plate (13) to move. Step 2: When the clamp (13) moves into the fixed groove (8), the worker presses down the U-shaped plate (5) so that the clamp (13) slides inside the fixed groove (8). The movement of the U-shaped plate (5) drives the push rod (12) to move downward. When the push rod (12) moves downward to contact the fixed column (11), the U-shaped plate (5) continues to move downward. The push rod (12) drives the U-shaped fixed plate (16) and the L-shaped fixed block (15) to move upward relative to the U-shaped plate (15), so that the sliding rod (7) disengages from the inner wall of the L-shaped fixed block (15). Under the action of the second spring (21), the two push plates (18) move relative to each other. The movement of the push plate (18) drives the moving rod (19) to move. The movement of the moving rod (19) drives the clamping plate (9) to move. Step 3: When the card plate (9) moves into the slot (14), the clamping plate (13) is fixed under the action of the second spring (21); Step 4: When it is necessary to release the clamp (13), at this time, the inner wall of the L-shaped fixing block (15) is on the top side of the sliding rod (7). The worker moves the sliding rod (7), and the movement of the sliding rod (7) drives the moving rod (19) and the clamp (9) to move. When the clamp (9) moves out of the inside of the slot (14) to the bottom of the inner side of the L-shaped fixing block (15), the sliding rod (7) approaches the inner wall of the U-shaped fixing plate (16). The staff moves the U-shaped plate (5) upward, so that the push rod (12) moves away from the fixed column (11). Under the action of the spring (17), the U-shaped fixed plate (16) moves downward, and the movement of the U-shaped fixed plate (16) drives the L-shaped fixed block (15) to move. When the L-shaped fixing block (15) moves downward and approaches the sliding rod (7), the sliding rod (7) moves into the interior of the L-shaped fixing block (15). At this time, the clamp (13) completely disengages from the interior of the fixing groove (8). The staff rotates the rotating rod (4) in the opposite direction, causing the clamps (13) to move away from each other, thereby separating the U-shaped plate (5).

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