Metro vehicle base profile steel structure beam column butt joint structure

Abstract

The invention discloses a metro vehicle base profile steel structure beam column butt joint structure, and relates to the field of beam column butt joint, the metro vehicle base profile steel structure beam column butt joint structure comprises two mounting assemblies, each mounting assembly comprises an upper mounting frame and a lower mounting frame, the upper mounting frames and the lower mounting frames are rotationally connected with each other, and fixed centering structures are arranged in the two upper mounting frames; the fixing and centering structure comprises a clamping plate and two clamping blocks, the clamping plate is arranged in the upper mounting frame, the two clamping blocks are fixedly connected to the bottom of the clamping plate, a screw is rotationally connected to the center of the top of the clamping plate, the top of the screw penetrates through the top of the upper mounting frame in a threaded mode, and two guide rods are symmetrically and rotationally connected to the positions, close to the two sides, of the top of the clamping plate. By arranging the mounting assembly, the assembly can be conveniently opened, closed, locked and fixed on a single beam column, the split type design allows an operator to independently mount the assembly on two to-be-butted beam columns, a large clamp does not need to be integrally hoisted, and mounting operation in a high-altitude or space-limited environment is greatly simplified.

Description

Technical Field

[0001] This invention relates to the field of beam-column connection, and in particular to a beam-column connection structure for a subway vehicle base steel structure. Background Technology

[0002] In the large workshops and maintenance depots of subway vehicle depots, hot-rolled H-beams are often used as the main load-bearing beams and columns. The beam-column joint structure is usually designed as a rigid or semi-rigid node, with high-strength bolt connection as the core. This can effectively transfer the bending moment and shear force at the beam end, forming a stable frame structure that meets the stringent requirements of the vehicle depot for structural strength and stiffness due to its large span, heavy load and frequent maintenance operations. An existing method for connecting steel beams and columns in subway vehicle depots typically relies on large integral clamps or complex temporary support systems for docking and positioning. This method often requires the overall hoisting of heavy clamping equipment, which places high demands on on-site hoisting capabilities and space, and is not flexible enough in operation. In addition, after docking and positioning, the clamps themselves may obstruct the beam-column connection, affecting the convenience and efficiency of subsequent all-round welding operations. Summary of the Invention

[0003] The main objective of this invention is to provide a steel beam-column connection structure for subway vehicle bases, which can effectively solve the technical problems in the background art.

[0004] To achieve the above objectives, the technical solution adopted by the present invention is as follows: A steel beam-column connection structure for a subway vehicle depot includes two mounting components. Each mounting component includes an upper mounting frame and a lower mounting frame, which are rotatably connected to each other. Each upper mounting frame has a fixed centering structure inside, comprising a clamping plate and two clamping blocks. The clamping plate is located inside the upper mounting frame, and the two clamping blocks are fixedly connected to the bottom of the clamping plate. A screw is rotatably connected to the top center of the clamping plate, with its top threaded through the top of the upper mounting frame. Two guide rods are symmetrically rotatably connected to the top of the clamping plate on both sides, with their tops penetrating the top of the upper mounting frame. A fixing cap is threadedly connected to the outer surface of the guide rods at the bottom of the upper mounting frame.

[0005] As a further embodiment of the present invention, one side of the upper mounting bracket and the lower mounting bracket are fixedly connected with ear seats, and two bolts are threaded between the two ear seats. A nut is threadedly connected to the outer surface of the bolts and to the bottom of the ear seat near the bottom.

[0006] As a further embodiment of the present invention, the two clamping blocks are symmetrical about the bottom center position of the clamping plate, and the bottom of the clamping blocks is set with an incline.

[0007] As a further solution of the present invention, two docking and clamping structures are symmetrically arranged between the two upper mounting brackets and between the two lower mounting brackets. The docking and clamping structure includes two connecting rods and two rotating blocks. Fixed blocks are arranged on the adjacent surfaces of the two upper mounting brackets. Docking blocks I are fixedly connected to the opposite ends of the two connecting rods. The docking blocks I are rotatably connected to the fixed blocks. Installation grooves are arranged at the adjacent ends of the two connecting rods. Docking blocks II are fixedly connected to the sides of the two rotating blocks. The docking blocks II are rotatably connected to the inside of the installation grooves. The two rotating blocks are in contact with each other. A long shaft bolt is threadedly connected between the two rotating blocks. A nut III is threadedly connected to the outer surface of the long shaft bolt.

[0008] As a further solution of the present invention, one end of the connecting rod penetrates through the docking block II and is threadedly connected with a bolt II. A nut II is embedded at one end of the top of the connecting rod. The bolt II is threadedly connected with the nut II.

[0009] As a further solution of the present invention, the longitudinal length of the rotating block is the same as the vertical length of the clamping plate.

[0010] As a further solution of the present invention, sliding grooves are opened on the adjacent surfaces of the two upper mounting brackets and on the adjacent surfaces of the two lower mounting brackets. The sliding grooves are in a "C" shape.

[0011] As a further solution of the present invention, two round blocks are slidably connected to the inside of each sliding groove. The round blocks are fixedly connected to the fixed blocks.

[0012] As a further solution of the present invention, a sliding groove is penetrated and opened on one side of the rotating block. A slider is slidably connected to the inside of the sliding groove. A measuring block is fixedly connected to the side of the slider.

[0013] As a further solution of the present invention, the long shaft bolt also penetrates through the measuring block, and the nut III is in contact with the rear part of the rear measuring block.

[0014] The beneficial effects of the present invention are as follows: By providing an installation component composed of a rotatable upper mounting bracket and a lower mounting bracket, and cooperating with the ear seat, bolt I and nut I, the convenient opening, closing and locking fixation of the component on a single beam-column are realized. This split design allows the operator to independently install the component on two beam-columns to be docked without hoisting a large fixture as a whole, greatly simplifying the installation operation in high-altitude or space-limited environments; By providing a fixed centering structure including a clamping block with a beveled bottom, a screw rod, a guide rod and a fixed cap, when the screw rod is rotated to drive the clamping block to press down on the top of the beam-column, the extrusion effect of the bevel of the clamping block is used to automatically guide the beam-column to move towards the center of the two clamping blocks. This design simultaneously realizes the pressing fixation and automatic centering positioning of the beam-column in the component, significantly improving the position accuracy during the subsequent docking of the two beam-columns; By setting up a docking and clamping structure including a connecting rod, a rotating block, a long-axis bolt and a nut three that are rotatably connected, and connecting it to the upper / lower mounting brackets through a fixing block, a high degree of flexibility and adaptability is imparted to the docking process. The multi-directional rotational connection between the connecting rod, the fixing block and the rotating block can effectively compensate for the small angular deviations existing in the installation process, ensuring reliable docking and fixation even if there is a small angular difference between the two installation components; At the same time, since both the connecting rod and the rotating block are rotatably connected, when the two beam-columns need to be docked at a certain angle, the connecting rod and the rotating block can be rotated to adapt to the docking angle between the two beam-columns, which is an effect that cannot be achieved by an integral docking structure; By setting up a "C"-shaped sliding groove and a round block that can slide therein, the docking and clamping structure can move circumferentially along the beam-column, and this design ensures that after the beam-columns are docked, the docking and clamping structure can be flexibly displaced, providing sufficient unobstructed operating space for the full-circumference welding of the docking part of the beam-columns; By setting up a slider with a sliding groove inside the rotating block and a measuring block connected to the slider, and cooperating with the long-axis bolt passing through the measuring block and being limited by the nut three, the accurate calibration of the installation position of the installation component on a single beam-column is achieved. The measuring block can slide down along the sliding groove and contact the port of the beam-column, ensuring that the installation positions of the two installation components on the two beam-columns are exactly the same and symmetrical, laying a reliable foundation for subsequent precise docking. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic diagram of the overall structure of a beam-column docking structure of a steel structure for a subway vehicle base according to the present invention; Figure 2 is a split display diagram of the installation component and the fixing and centering structure of a beam-column docking structure of a steel structure for a subway vehicle base according to the present invention; Figure 3 is a display diagram of the docking and clamping structure of a beam-column docking structure of a steel structure for a subway vehicle base according to the present invention; Figure 4 is a split display diagram of the docking and clamping structure of a beam-column docking structure of a steel structure for a subway vehicle base according to the present invention; Figure 5 is a split display diagram of the round block and the sliding groove of a beam-column docking structure of a steel structure for a subway vehicle base according to the present invention; Figure 6 is a split display diagram of the slider and the measuring block of a beam-column docking structure of a steel structure for a subway vehicle base according to the present invention; Figure 7 is a display diagram when the installation component of a beam-column docking structure of a steel structure for a subway vehicle base according to the present invention is positioned and installed.

[0016] In the diagram: 1. Mounting component; 2. Beam and column; 3. Fixed centering structure; 4. Lower mounting bracket; 5. Upper mounting bracket; 6. Ear seat; 7. Bolt 1; 8. Nut 1; 9. Clamping plate; 10. Clamping block; 11. Screw; 12. Guide rod; 13. Fixing cap; 14. Butt clamping structure; 15. Fixing block; 16. Connecting rod; 17. Rotating block; 18. Long shaft bolt; 19. Butt block 1; 20. Butt block 2; 21. Bolt 2; 22. Nut 2; 23. Nut 3; 24. Mounting groove; 25. Gauge block; 26. Sliding groove; 27. Round block; 28. Sliding groove; 29. ​​Sliding block. Detailed Implementation

[0017] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0018] like Figures 1-7 As shown, a steel beam-column docking structure for a subway vehicle base includes two mounting components 1. The mounting components 1 include an upper mounting frame 5 and a lower mounting frame 4, which are rotatably connected to each other. Each of the two upper mounting frames 5 has a fixed centering structure 3 inside. The fixed centering structure 3 includes a clamping plate 9 and two clamping blocks 10. The clamping plate 9 is located inside the upper mounting frame 5. The two clamping blocks 10 are fixedly connected to the bottom of the clamping plate 9. A screw 11 is rotatably connected to the top center of the clamping plate 9. The top of the screw 11 is threaded through the top of the upper mounting frame 5. Two guide rods 12 are symmetrically rotatably connected to the top of the clamping plate 9 on both sides. The top of the guide rods 12 is threaded through the top of the upper mounting frame 5. A fixing cap 13 is threadedly connected to the outer surface of the guide rods 12 and located at the bottom of the upper mounting frame 5. In the initial state, firstly, the two mounting components 1 are respectively fitted onto the outer surfaces of the two beams and columns 2. The specific steps are as follows: rotate the upper mounting bracket 5, then place the beams and columns 2 between the upper mounting bracket 5 and the lower mounting bracket 4, and then close the upper mounting bracket 5 so that the two lugs 6 fit together. At this time, rotate the two bolts 7 and then use the two nuts 8 to fit and fix the two lugs 6 together. Thus, the mounting components 1 are successfully fitted onto the outer surfaces of the beams and columns 2. When both mounting components 1 are successfully fitted onto the outer surface of the beam and column 2, the two fixed centering structures 3 are then activated. The specific steps are as follows: First, loosen the two fixing caps 13, and then rotate the screw 11 through the external assist device, driving the six guide rods 12, the clamping plate 9, and the two clamping blocks 10 to descend synchronously, so that the bottom of the two clamping blocks 10 presses against the top of the beam and column 2. Since the bottom of the clamping blocks 10 is set at an angle, the beam and column 2 moves towards the middle position of the two clamping blocks 10 under the pressure of the two clamping blocks 10. Then tighten the two fixing caps 13, thereby completing the fixing operation between the mounting components 1 and the beam and column 2. Through the two clamping blocks 10, the clamping plate 9 is pressed down and fixed, and the positioning of the beam and column 2 is automatically completed, so that when the two mounting components 1 are connected and assembled later, the two beams and columns 2 can be accurately connected.

[0019] In this embodiment, ear seats 6 are fixedly connected to one side of both the upper mounting bracket 5 and the lower mounting bracket 4. Two bolts 7 are threaded between the two ear seats 6. Nuts 8 are threadedly connected to the outer surface of the bolts 7 and to the bottom of the ear seat 6 near the bottom.

[0020] In this embodiment, the two clamping blocks 10 are symmetrical about the bottom center position of the clamping plate 9, and the bottom of the clamping blocks 10 is set with an inclined surface.

[0021] In this embodiment, two mating clamping structures 14 are symmetrically arranged between the two upper mounting brackets 5 and between the two lower mounting brackets 4. The mating clamping structure 14 includes two connecting rods 16 and two rotating blocks 17. Fixed blocks 15 are provided on the close surfaces of the two upper mounting brackets 5. A mating block 19 is fixedly connected to the far ends of the two connecting rods 16. The mating block 19 is rotatably connected to the fixed block 15. Mounting grooves 24 are provided on the close ends of the two connecting rods 16. A mating block 20 is fixedly connected to the side of the two rotating blocks 17. The mating block 20 is rotatably connected to the inside of the mounting groove 24. The two rotating blocks 17 fit together. A long shaft bolt 18 is threadedly connected between the two rotating blocks 17. A nut 3 23 is threadedly connected to the outer surface of the long shaft bolt 18. Through four docking and clamping structures 14, the docking between two installation components 1 can be completed, thus completing the docking between two beam columns 2. The specific steps are as follows: Rotate the two connecting rods 16 to the horizontal state, and then rotate the two rotating blocks 17 so that the angle between the two rotating blocks 17 and the two connecting rods 16 is 90 degrees. Then rotate the long-axis bolt 18 and cooperate with the third nut 23 to fix the fitting between the two rotating blocks 17. The same steps are carried out for the other three docking and clamping structures 14, thus completing the docking between the two installation components 1, that is, completing the docking work between the two beam columns 2. The design of the two separated installation components 1 allows construction workers to pre-install the installation components 1 on the two beam columns 2 to be docked independently, without the need to hoist large fixtures as a whole, greatly simplifying the on-site operation, especially suitable for the vehicle base environment with limited space or high-altitude operations. The connecting rod 16 of the docking and clamping structure 14 is rotatably connected to the fixed block 15, the first docking block 19, the second docking block 20, and the installation groove 24, endowing the structure with certain adaptability and adjustment ability in the spatial angle, capable of compensating for minor installation deviations, ensuring the smooth progress of the docking and the reliability of the final connection; At the same time, since the connecting rod 16 and the rotating block 17 are both connected in a rotational manner, when the two beam columns 2 need to be docked at a certain angle, the connecting rod 16 and the rotating block 17 can be rotated to adapt to the docking angle between the two beam columns 2, which is an effect that cannot be achieved by the integral docking structure.

[0022] In this embodiment, one end of the connecting rod 16 passes through the second docking block 20 and is threadedly connected with a second bolt 21. One end of the top of the connecting rod 16 is embedded with a second nut 22, and the second bolt 21 is threadedly connected with the second nut 22.

[0023] In this embodiment, the longitudinal length of the rotating block 17 is the same as the vertical length of the clamping plate 9.

[0024] In this embodiment, sliding grooves 26 are provided on the adjacent surfaces of the two upper mounting brackets 5 and the adjacent surfaces of the two lower mounting brackets 4. The sliding grooves 26 are in a "C" shape.

[0025] In this embodiment, two round blocks 27 are slidably connected inside each sliding groove 26, and the round blocks 27 are fixedly connected to the fixed block 15; Since the four clamping structures 14 are located on both sides of the beam and column 2, the top and bottom of the beam and column 2 are open and unobstructed. Therefore, after the two beams and columns 2 are joined, welding can be performed on the top and bottom of the joint of the two beams and columns 2 according to the specific construction standards. After the top and bottom are welded, the four clamping structures 14 can be moved to the top and bottom positions of the beam and column 2 by sliding the round block 27 along the sliding groove 26. Thus, the two sides of the two beams and columns 2 are open and unobstructed, and welding can then be performed on the two sides of the joint of the two beams and columns 2.

[0026] In this embodiment, a groove 28 is provided through one side of the interior of the rotating block 17, a slider 29 is slidably connected inside the groove 28, and a gauge block 25 is fixedly connected to the side of the slider 29. When mounting component 1 is fitted onto the outer surface of beam-column 2, components such as connecting rod 16, rotating block 17, and gauge block 25 connected to the upper mounting bracket 5 can be slid along sliding groove 26 to the top of beam-column 2 via round block 27. After sliding to the top, gauge block 25 is slid down along sliding groove 28 via slider 29. Then, the position of mounting component 1 on the surface of beam-column 2 is adjusted so that the end of beam-column 2 contacts the rear of gauge block 25. Thus, mounting component 1 can be installed in a fixed position on beam-column 2, so that the positions of two mounting components 1 on two beam-columns 2 are consistent. Through the sliding positioning of gauge block 25 and its contact with the end of beam-column 2, the installation position of mounting component 1 on each beam-column 2 is precisely unified, ensuring that the mounting components 1 on the two beam-columns 2 are in a completely symmetrical and consistent relative position. This provides a reliable basic positioning guarantee for the precise docking between the two components, effectively avoiding docking misalignment caused by installation position deviation, and significantly improving the overall docking accuracy and construction efficiency.

[0027] In this embodiment, the long shaft bolt 18 also penetrates the gauge block 25, and the nut 23 contacts the rear part of the gauge block 25.

[0028] It should be noted that the present invention is a steel beam-column connection structure for a subway vehicle base. In use, in the initial state, the two mounting components 1 are first respectively fitted onto the outer surfaces of the two beams and columns 2. The specific steps are as follows: rotate the upper mounting frame 5, then place the beam and column 2 between the upper mounting frame 5 and the lower mounting frame 4, and then close the upper mounting frame 5 so that the two lugs 6 fit together. At this time, rotate the two bolts 7 and then use the two nuts 8 to fix the two lugs 6 together. Thus, the mounting components 1 are successfully fitted onto the outer surfaces of the beams and columns 2. When both installation components 1 are successfully fitted onto the outer surface of the beam and column 2, the two fixed centering structures 3 are then activated. The specific steps are as follows: First, loosen the two fixing caps 13, and then rotate the screw 11 through the external assist device, driving the six guide rods 12, the clamping plate 9, and the two clamping blocks 10 to descend synchronously, so that the bottom of the two clamping blocks 10 presses against the top of the beam and column 2. Since the bottom of the clamping blocks 10 is set at an angle, the beam and column 2 moves towards the middle position of the two clamping blocks 10 under the pressure of the two clamping blocks 10. Then tighten the two fixing caps 13, and then complete the fixing operation between the installation components 1 and the beam and column 2. Through the two clamping blocks 10, the clamping plate 9 is pressed down and fixed, and the beam and column 2 is automatically positioned, so that when the two installation components 1 are connected and assembled in the future, the two beams and columns 2 can be accurately connected. The connection between the two mounting components 1 is achieved through the four clamping structures 14, thus completing the connection between the two beams and columns 2. Specifically, the two connecting rods 16 are rotated to a horizontal position, then the two rotating blocks 17 are rotated so that they are at a 90-degree angle to the two connecting rods 16. Then, the long shaft bolt 18 is rotated, and with the nut 23, the two rotating blocks 17 are secured together. The remaining three clamping structures 14 follow the same steps, thus completing the connection between the two mounting components 1, which in turn completes the connection between the two beams and columns 2. The design of the two separate installation components 1 allows construction personnel to pre-install the installation components 1 independently on the two beams 2 to be connected, without the need for large hoisting clamps, which greatly simplifies on-site operations. It is especially suitable for vehicle base environments with limited space or high-altitude operations. The connecting rod 16 of the docking clamping structure 14 is rotatably connected to the fixing block 15, docking block one 19, docking block two 20 and the mounting groove 24, which gives the structure a certain degree of adaptability and adjustment in spatial angle, can compensate for minor installation deviations, and ensure the smooth docking and the reliability of the final connection. Meanwhile, since both the connecting rod 16 and the rotating block 17 are rotatably connected, when the two beams and columns 2 need to be connected at a certain angle, the connecting rod 16 and the rotating block 17 can be rotated to adapt to the connection angle between the two beams and columns 2. This is an effect that the integral connection structure cannot achieve. Since the four clamping structures 14 are located on both sides of the beam and column 2, the top and bottom of the beam and column 2 are open and unobstructed. Therefore, after the two beams and columns 2 are joined, welding can be performed on the top and bottom of the joint of the two beams and columns 2 according to the specific construction standards. After the top and bottom are welded, the four clamping structures 14 can be moved to the top and bottom positions of the beam and column 2 by sliding the round block 27 along the sliding groove 26. Thus, the two sides of the two beams and columns 2 are open and unobstructed, and welding can be performed on the two sides of the joint of the two beams and columns 2. When mounting component 1 is fitted onto the outer surface of beam-column 2, components such as connecting rod 16, rotating block 17, and gauge block 25 connected to the upper mounting bracket 5 can be slid along sliding groove 26 to the top of beam-column 2 via round block 27. After sliding to the top, gauge block 25 is slid down along sliding groove 28 via slider 29. Then, the position of mounting component 1 on the surface of beam-column 2 is adjusted so that the end of beam-column 2 contacts the rear of gauge block 25. Thus, mounting component 1 can be installed in a fixed position on beam-column 2, so that the positions of two mounting components 1 on two beam-columns 2 are consistent. Through the sliding positioning of gauge block 25 and its contact with the end of beam-column 2, the installation position of mounting component 1 on each beam-column 2 is precisely unified, ensuring that the mounting components 1 on the two beam-columns 2 are in a completely symmetrical and consistent relative position. This provides a reliable basic positioning guarantee for the precise docking between the two components, effectively avoiding docking misalignment caused by installation position deviation, and significantly improving the overall docking accuracy and construction efficiency.

[0029] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention.

Claims

1. A steel beam-column connection structure for a subway vehicle depot, comprising two mounting components (1), characterized in that: The installation component (1) includes an upper mounting frame (5) and a lower mounting frame (4). The upper mounting frame (5) and the lower mounting frame (4) are rotatably connected to each other. A fixed centering structure (3) is provided inside each of the two upper mounting frames (5). The fixed centering structure (3) includes a clamping plate (9) and two clamping blocks (10). The clamping plate (9) is arranged inside the upper mounting frame (5). The two clamping blocks (10) are fixedly connected to the bottom of the clamping plate (9). A screw rod (11) is rotatably connected to the center position of the top of the clamping plate (9). The top of the screw rod (11) threadedly penetrates through the top of the upper mounting frame (5). Two guide rods (12) are symmetrically and rotatably connected to the positions on both sides near the top of the clamping plate (9). The top of the guide rod (12) penetrates through the top of the upper mounting frame (5). A fixing cap (13) is threadedly connected to the outer surface of the guide rod (12) and at the bottom of the upper mounting frame (5).

2. The steel beam-column connection structure for a subway vehicle depot according to claim 1, characterized in that: An ear seat (6) is fixedly connected to one side of each of the upper mounting frame (5) and the lower mounting frame (4). Two bolt ones (7) are threadedly connected between the two ear seats (6). A nut one (8) is threadedly connected to the outer surface of the bolt one (7) and at the bottom of the ear seat (6) near the bottom.

3. The steel beam-column connection structure for a subway vehicle depot according to claim 1, characterized in that: The two clamping blocks (10) are symmetrically arranged about the center position of the bottom of the clamping plate (9), and the bottom of the clamping block (10) is provided with an inclined surface.

4. The steel beam-column connection structure for a subway vehicle depot according to claim 1, characterized in that: Two docking clamping structures (14) are symmetrically arranged between the two upper mounting frames (5) and between the two lower mounting frames (4). The docking clamping structure (14) includes two connecting rods (16) and two rotating blocks (17). Fixed blocks (15) are arranged on the adjacent surfaces of the two upper mounting frames (5). Docking blocks one (19) are fixedly connected to the remote ends of the two connecting rods (16). The docking block one (19) is rotatably connected to the fixed block (15). Installation grooves (24) are arranged at the adjacent ends of the two connecting rods (16). Docking blocks two (20) are fixedly connected to the sides of the two rotating blocks (17). The docking block two (20) is rotatably connected to the inside of the installation groove (24). The two rotating blocks (17) are in contact with each other. A long shaft bolt (18) is threadedly connected between the two rotating blocks (17). A nut three (23) is threadedly connected to the outer surface of the long shaft bolt (18).

5. A steel beam-column connection structure for a subway vehicle depot according to claim 4, characterized in that: One end of the connecting rod (16) penetrates through the docking block two (20) and is threadedly connected to a bolt two (21). A nut two (22) is embedded near one end of the top of the connecting rod (16). The bolt two (21) is threadedly connected to the nut two (22).

6. The steel beam-column connection structure for a subway vehicle depot according to claim 4, characterized in that: The longitudinal length of the rotating block (17) is the same as the vertical length of the clamping plate (9).

7. The steel beam-column connection structure for a subway vehicle depot according to claim 4, characterized in that: Sliding grooves (26) are formed on the adjacent surfaces of the two upper mounting frames (5) and on the adjacent surfaces of the two lower mounting frames (4). The sliding groove (26) is in a "C" shape.

8. A steel beam-column connection structure for a subway vehicle depot according to claim 7, characterized in that: Two round blocks (27) are slidably connected to the inside of each sliding groove (26). The round block (27) is fixedly connected to the fixed block (15).

9. A steel beam-column connection structure for a subway vehicle depot according to claim 4, characterized in that: A sliding groove (28) is formed by penetrating through one side of the rotating block (17). A slider (29) is slidably connected to the inside of the sliding groove (28). A measuring block (25) is fixedly connected to the side of the slider (29).

10. A steel beam-column connection structure for a subway vehicle depot according to claim 9, characterized in that: The long shaft bolt (18) also penetrates the gauge block (25), and the nut three (23) contacts the rear part of the gauge block (25).

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