A steel beam-column connection joint reinforcing device and method

Abstract

The application discloses a reinforcing device and method for a steel beam-column connecting joint. The reinforcing device for the steel beam-column connecting joint comprises a reinforcing support tripod arranged at a right angle where a first H-shaped steel structure beam and a second H-shaped steel structure beam intersect, two groups of clamping assemblies are symmetrically arranged on two straight angle sides of the reinforcing support tripod, the two groups of clamping assemblies are used for moving from two sides to the middle to clamp the web of the H-shaped steel structure beam, each group of clamping assemblies comprises a mounting block, a rotating rod, a connecting frame, a positioning frame, a clamping block and a driving structure. The web of the H-shaped steel structure beam is clamped by moving from two sides to the middle through bidirectional screw rod driving of the clamping assembly, and the whole process does not need to drill holes, weld or use additional connecting bolts on the steel beam, so that secondary damage to the original structure can be effectively avoided, and on-site assembly with no damage and high efficiency is realized.

Description

Technical Field

[0001] This invention relates to the field of steel structure building technology, specifically to a device and method for reinforcing steel beam-column connection nodes. Background Technology

[0002] In steel structure buildings, beam-column connections are critical load-bearing components, and their mechanical properties directly affect the safety and stability of the overall structure. H-beams (also known as wide-flange I-beams) are one of the most common beam-column member types in modern steel structures due to their rational cross-sectional distribution and high bending and shear strength. Common H-beam-column connection methods include welded connections, high-strength bolted connections, or a combination of bolted and welded connections.

[0003] However, in actual engineering operations, due to changes in building function, increased load, changes in design standards, or fatigue damage and plastic deformation degradation in the joint area under long-term alternating loads, it is often necessary to reinforce existing H-beam-column joints. H-beams consist of upper and lower flanges and a central web. The web is relatively thin and has low out-of-plane stiffness, making it the main part that transmits shear force and also the area most suitable for reinforcement devices to clamp.

[0004] Traditional methods for strengthening joints mainly include: welding additional stiffening ribs to the joint area, welding flange or web reinforcement plates, and bolting additional steel brackets or angle steel supports. However, all of these methods have inherent drawbacks: welding reinforcement involves on-site hot work, which is not only lengthy and its quality heavily reliant on the welder's skill level, but the residual stress and heat-affected zone introduced by welding can significantly reduce the fatigue strength of the steel, especially for H-beam joints subjected to dynamic loads; bolted reinforcement requires drilling installation holes on the flanges or webs of the H-beam, which inevitably weakens the effective cross-section of the original component, creates stress concentration, and may cut off the original internal reinforcing steel or damage the anti-corrosion and fireproof coating, causing irreversible secondary damage to the existing structure. In addition, most existing reinforcement devices require multi-point simultaneous tightening or high-precision alignment during installation, making the construction process cumbersome and demanding on the work space and installation process, making it difficult to meet the needs of existing buildings for rapid and reliable assembly under conditions of uninterrupted production or limited operation.

[0005] Therefore, there is an urgent need to design a reinforcement device and method for H-beam-column connection nodes that is free from drilling and welding and easy to install. This would allow for non-destructive and highly efficient on-site reinforcement assembly, taking advantage of the structural characteristics of H-beams, such as the ability to clamp the web and position the flanges, thereby overcoming the shortcomings of the existing technologies. Summary of the Invention

[0006] In order to overcome the shortcomings of the prior art, the present invention provides a steel beam-column connection node reinforcement device and method that is non-destructive and can be assembled on-site with high efficiency.

[0007] The technical implementation of this invention is as follows: A steel beam-column connection reinforcement device includes a first H-shaped steel structural beam and a second H-shaped steel structural beam, which are perpendicular to each other. A reinforcement support triangle is provided at the right angle where the first H-shaped steel structural beam and the second H-shaped steel structural beam intersect. Two sets of clamping components are symmetrically arranged on each right-angle side of the reinforcement support triangle. The two sets of clamping components are used to clamp the web of the H-shaped steel structural beam from both sides towards the middle. Each set of clamping components includes a mounting block, a rotating rod, a connecting frame, a positioning frame, a clamping block, and a driving structure. The mounting block is fixedly installed on the outer wall of the right-angle side of the reinforcing support triangle. A rotating rod is rotatably provided at intervals between the end of the mounting block away from the reinforcing support triangle and the outer wall of the right-angle side of the reinforcing support triangle. Two connecting frames are provided at intervals on the rotating rod. The ends of all connecting frames away from the rotating rod are rotatably connected to a positioning frame. A clamping block is slidably provided on the side of the positioning frame opposite to the rotating rod. The clamping block is used to contact and cooperate with the web of the H-shaped steel structure beam. Each right-angle side of the reinforcing support triangle is provided with a driving mechanism for driving the clamping blocks in the two sets of clamping assemblies on that right-angle side to move closer or further apart.

[0008] Furthermore, the driving structure includes a U-shaped frame, a bidirectional lead screw, a slider, a drive rod, and a drive frame. The U-shaped frame is disposed on the right-angled side of the reinforced support triangle. The bidirectional lead screw is rotatably disposed inside the U-shaped frame. A slider is threaded onto each of the left-hand and right-hand threaded sections of the bidirectional lead screw. Both sliders slide against the inner wall of the U-shaped frame. A drive rod is disposed on the side of each slider away from the inner wall of the right-angled side of the reinforced support triangle. The drive rod passes through the U-shaped frame and is slidably connected to the drive frame. The drive frame is fixedly connected to a rotating rod in the corresponding clamping assembly.

[0009] Furthermore, the reinforcement device also includes a V-shaped block and a portal frame. The clamping block is provided with a V-shaped block on the side facing the positioning frame. A rectangular groove is opened on the positioning frame. The V-shaped block is located in the rectangular groove and can move horizontally in the rectangular groove. Guide grooves are provided on the two symmetrical groove walls of the rectangular groove. The portal frame is slidably arranged in the two guide grooves. The portal frame moves closer to or away from the clamping block along the guide groove. When the portal frame moves closer to the clamping block along the guide groove, the portal frame is positioned between the two V-shaped inner walls of the V-shaped block.

[0010] Furthermore, the portal frame has a first chamber and a second chamber that are vertically connected. A positioning rod is slidably arranged in the first chamber, and a first piston rod is slidably arranged in the second chamber with damping. The positioning frame has a positioning hole that communicates with the guide groove, and the positioning rod can be inserted into the positioning hole.

[0011] Furthermore, a locking structure is provided on each right-angle side of the reinforced support triangle. There are multiple sets of locking structures, each set including a locking plate and locking bolts. Locking bolts are threaded on both sides of the outer wall of the two right-angle sides of the reinforced support triangle, centered on the central axis. Locking plates are connected between the two opposite locking bolts. When the reinforced support triangle is set at the 90-degree intersection of the first H-shaped steel beam and the second H-shaped steel beam, the locking plate is set on the side of the first H-shaped steel beam and the second H-shaped steel beam facing away from the reinforced support triangle, and the locking bolts are set on both sides of the first H-shaped steel beam and the second H-shaped steel beam.

[0012] Furthermore, the positioning frame is also equipped with a master pump and a support rod. The support rod is located between the master pump and the rectangular groove. A lever is rotatably mounted on the support rod. One end of the lever is slidably connected to the portal frame, and the other end is slidably connected to the second piston rod slidably mounted on the master pump. A piston is connected to one end of the second piston rod that slides into the inner cavity of the master pump. The piston slides in cooperation with the inner wall of the master pump. A return spring is provided between the end of the piston away from the second piston rod and the inner wall of the master pump. A slave pump is fixedly mounted inside the slider. A hydraulic oil pipe connects the slave pump and the master pump. An L-shaped block is connected to the free end of the slave pump piston rod. The L-shaped block slides in cooperation with the slider. A drive rod is fixedly mounted on the L-shaped block.

[0013] Furthermore, the lever is divided into a long section and a short section around the support rod, wherein the short section is slidably connected to the portal frame and the long section is slidably connected to the second piston rod.

[0014] Furthermore, the longitudinal portion of the L-shaped block slides through the U-shaped frame and slides into the U-shaped frame, the longitudinal inner wall of the L-shaped block is fixedly connected to the free end of the piston rod of the pump, and the longitudinal inner walls of the two L-shaped blocks are in contact with the side of the two sliders that are close to each other.

[0015] 9. A method for reinforcing steel beam-column connection nodes, which uses the aforementioned steel beam-column connection node reinforcement device for reinforcement, specifically including the following steps:

[0016] S1: Place the reinforcing support tripod at the right angle where the first H-shaped steel beam and the second H-shaped steel beam are set at a 90-degree angle;

[0017] S2: The reinforcing support triangular frame is initially locked to the first H-shaped steel beam and the second H-shaped steel beam through the locking structure;

[0018] S3: Push the clamping block so that the portal frame is located between the two V-shaped inner walls of the V-shaped block, then move the portal frame along the guide groove to the position where the positioning rod is directly opposite the positioning hole, then push the first piston rod into the second chamber of the portal frame so that the hydraulic oil in the second chamber enters the first chamber, push out the positioning rod and insert it into the positioning hole to lock the portal frame;

[0019] S4: Drive the two sets of clamping components through the drive mechanism to make the clamping blocks move from both sides toward the middle and clamp the webs of the first H-shaped steel structure beam and the second H-shaped steel structure beam; then, pull the first piston rod away from the portal frame to create a negative pressure in the first chamber, suck the positioning rod into the first chamber, disengage the positioning rod from the positioning hole, and release the lock on the portal frame.

[0020] Furthermore, the positioning frame is also equipped with a master pump and a support rod. The support rod is located between the master pump and the rectangular groove. A lever is rotatably mounted on the support rod. One end of the lever is slidably connected to the portal frame, and the other end is slidably connected to the second piston rod slidably mounted on the master pump. A piston is connected to one end of the second piston rod that slides into the inner cavity of the master pump. The piston slides in cooperation with the inner wall of the master pump. A return spring is provided between the end of the piston away from the second piston rod and the inner wall of the master pump. A slave pump is fixedly mounted inside the slider. A hydraulic oil pipe connects the slave pump and the master pump. An L-shaped block is connected to the free end of the slave pump piston rod. The L-shaped block slides in cooperation with the slider. A drive rod is fixedly mounted on the L-shaped block.

[0021] When the clamping block slides on the web, it drives the V-shaped block on its back to move. The inner wall of the V-shaped block squeezes the portal frame, causing it to move away from the clamping block along the guide groove. The portal frame pushes the lever to rotate, and the lever pushes the second piston rod into the inner cavity of the master pump, which presses hydraulic oil into the slave pump through the hydraulic oil pipe. The piston rod of the slave pump extends and pushes the L-shaped block to move towards each other. The L-shaped block drives the drive frame and the rotating rod to rotate further through the drive rod, so that the positioning frame drives the clamping block to move further towards the web, automatically increasing the clamping force.

[0022] The present invention has the following advantages: (1) The present invention uses a bidirectional screw drive clamping assembly to clamp the web of the H-shaped steel beam from both sides toward the middle. The entire process does not require drilling, welding or using additional connecting bolts on the steel beam, which can effectively avoid secondary damage to the original structure and achieve damage-free and high-efficiency on-site assembly.

[0023] (2) When the clamping block accidentally slides on the web due to vibration or force, the V-shaped block moves with the clamping block and squeezes the portal frame. Through the lever amplification effect, it pushes the piston of the main pump, presses the hydraulic oil into the sub-pump, and then drives the L-shaped block and the drive rod to move the positioning frame and clamping block further towards the web, automatically increasing the clamping force, thereby realizing the adaptive adjustment of "sliding-force-locking", effectively preventing the reinforced support triangle from failing due to loosening during long-term service, and significantly improving the long-term safety and reliability of the node. Attached Figure Description

[0024] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0025] Figure 2 This is a three-dimensional structural diagram of the first H-shaped steel beam, the second H-shaped steel beam, the reinforcing support triangular frame, and the locking structure of the present invention.

[0026] Figure 3 For the present invention Figure 1 A partial three-dimensional structural diagram.

[0027] Figure 4 For the present invention Figure 3 A partial three-dimensional sectional view.

[0028] Figure 5 This is a three-dimensional structural diagram of the components of the present invention, including the rotating rod, connecting frame, positioning frame, clamping block, V-shaped block, and U-shaped frame.

[0029] Figure 6 This is a three-dimensional structural diagram of the clamping block and V-shaped block of the present invention.

[0030] Figure 7 This is a three-dimensional structural diagram of the positioning frame, portal frame, support rod, lever, main pump, and other components of the present invention.

[0031] Figure 8 This is a three-dimensional structural diagram of the positioning frame, support rod, main pump, and second piston rod of the present invention.

[0032] Figure 9 This is a three-dimensional sectional view of the portal frame of the present invention.

[0033] Figure 10 This is a three-dimensional sectional view of the main pump of the present invention.

[0034] Figure 11 This is a three-dimensional structural diagram of the slider, pump, and L-shaped block of the present invention in their separated states.

[0035] In the attached diagrams: 1: First H-shaped steel structure beam, 2: Second H-shaped steel structure beam, 3: Reinforcing support triangular frame, 31: Locking structure, 311: Locking plate, 312: Locking bolt, 32: Mounting block, 4: Rotating rod, 5: Connecting frame, 6: Positioning frame, 61: Rectangular groove, 62: Protruding rod, 63: Guide groove, 64: Positioning hole, 7: Clamping block, 8: V-shaped block, 9: U-shaped frame, 10: Bidirectional lead screw, 11: Slider, 111: Drive rod, 12: Drive frame, 121: Drive slot, 13: Sub-pump, 14: L-shaped block, 15: Door-shaped moving frame, 151: First chamber, 152: Positioning rod, 153: First piston rod, 154: Second chamber, 16: Support rod, 17: Lever, 18: Master pump, 19: Second piston rod, 20: Return spring, 21: Hydraulic oil pipe. Detailed Implementation

[0036] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0037] Example 1 provides a steel beam-column connection reinforcement device, such as... Figure 1 and Figure 2 As shown, the structure includes a first H-shaped steel beam 1 and a second H-shaped steel beam 2. The first H-shaped steel beam 1 is a horizontal beam, and the second H-shaped steel beam 2 is a longitudinal beam perpendicular to the first H-shaped steel beam 1. A reinforcing support triangle 3 is located between the first H-shaped steel beam 1 and the second H-shaped steel beam 2. The reinforcing support triangle 3 is positioned at the right angle where the first H-shaped steel beam 1 and the second H-shaped steel beam 2 intersect, and is locked to the first H-shaped steel beam 1 and the second H-shaped steel beam 2 by a locking structure 31. The locking structure 31 is provided in multiple sets, each set of locking structures 31 including a locking plate 311 and a locking bolt 312. The outer walls of the two right-angled sides of the reinforcing support triangle 3 are aligned with the central axis. The center has locking bolts 312 threaded on both sides, and locking plates 311 are connected between the two opposite locking bolts 312. When the reinforcing support triangle 3 is set at the 90-degree intersection of the first H-shaped steel beam 1 and the second H-shaped steel beam 2, the locking plates 311 are set on the side of the first H-shaped steel beam 1 and the second H-shaped steel beam 2 facing away from the reinforcing support triangle 3, and the locking bolts 312 are set on both sides of the first H-shaped steel beam 1 and the second H-shaped steel beam 2. By locking the locking bolts 312, the locking plates 311 abut against the first H-shaped steel beam 1 and the second H-shaped steel beam 2, thereby initially locking the reinforcing support triangle 3 onto the first H-shaped steel beam 1 and the second H-shaped steel beam 2.

[0038] In use, first place the reinforcing support tripod 3 at the right angle where the first H-shaped steel beam 1 and the second H-shaped steel beam 2 intersect at 90 degrees; then, use the locking structure 31 to initially fix the tripod to the two steel beams: tighten the locking bolts 312 on the outer wall of the two right-angled sides of the tripod so that the locking plate 311 tightly abuts against the flange of the first H-shaped steel beam 1 and the second H-shaped steel beam 2 from the side of the steel beam facing away from the tripod, thus initially locking the reinforcing support tripod 3 at the beam-column joint.

[0039] like Figure 1 and Figures 3-5As shown in the embodiment, two sets of clamping components are symmetrically arranged on each right-angled side of the reinforcing support tripod 3. The two sets of clamping components are used to clamp the webs of the first H-shaped steel beam 1 and the first H-shaped steel beam 2 from both sides toward the middle. Each set of clamping components includes a mounting block 32, a rotating rod 4, a connecting frame 5, a positioning frame 6, a clamping block 7, and a driving structure. The mounting block 32 is fixedly installed on the outer wall of the right-angled side of the reinforcing support tripod 3. The end of the mounting block 32 away from the reinforcing support tripod 3 is rotatably arranged with the rotating rod 4 at intervals between it and the outer wall of the right-angled side of the reinforcing support tripod 3. Two connecting frames 5 are arranged at intervals on the rotating rod 4. The ends of all connecting frames 5 away from the rotating rod 4 are rotatably connected to the positioning frame 6. Specifically, protruding rods 62 are provided on both sides of the positioning frame 6. The protruding rods 62 are rotatably connected to the connecting frames 5. A clamping block 7 is slidably provided on the side of the positioning frame 6 facing away from the rotating rod 4. The clamping block 7 is used to contact and cooperate with the web of the H-shaped steel structure beam. A drive mechanism is provided on the reinforcing support triangular frame 3 to drive the clamping blocks 7 in the two sets of clamping assemblies to move closer or further apart.

[0040] like Figure 4 and Figure 5 As shown in the embodiment, the driving structure includes a U-shaped frame 9, a bidirectional lead screw 10, a slider 11, a driving rod 111, and a driving frame 12. A U-shaped frame 9 is provided on the inner wall of the right-angled side of the reinforcing support tripod 3. The longitudinal section of the U-shaped frame 9 is a U-shaped structure. A bidirectional lead screw 10 is rotatably installed inside the U-shaped frame 9. A slider 11 is threaded onto each of the left-hand and right-hand threaded sections of the bidirectional lead screw 10. The two sliders 11 correspond to a set of clamping components. The sliders 11 and the U-shaped frame... The inner wall of the 9 slides together. The slider 11 is provided with a drive rod 111 on the side of the inner wall away from the right angle side of the reinforcing support triangle 3. The drive rod 111 passes through the U-shaped frame 9 and is slidably connected to the drive frame 12. Specifically, the drive frame 12 is located on the outside of the U-shaped frame 9. The drive frame 12 has a drive slot 121. The drive rod 111 is slidably disposed in the drive slot 121 and can move horizontally along the drive slot 121. The drive frame 12 is fixedly connected to a rotating rod 4 in the clamping assembly. When the bidirectional lead screw 10 is rotated, the two sliders 11 move towards each other or in opposite directions along the inner wall of the U-shaped frame 9. When the two sliders 11 move towards each other, the sliders 11 force the drive frame 12 and the rotating rod 4 connected to the drive frame 12 to rotate around the central axis of the rotating rod 4 through the drive slot 121 on the drive frame 12. The rotating rod 4 drives the two connecting frames 5 connected to it to rotate synchronously. The connecting frame 5 then drives the positioning frame 6 to rotate around the central axis of the two rotating rods 4 through the protruding rod 62. This causes the positioning frame 6 and the clamping block 7 to move towards the web of the H-shaped steel structure beam until the clamping block 7 abuts against the web of the H-shaped steel structure beam. When the two sliders 11 move in opposite directions, the positioning frame 6 and the clamping block 7 move away from the web of the H-shaped steel structure beam.

[0041] When the double-acting screw 10 is rotated, the left and right threads on the double-acting screw 10 drive the two sliders 11 to move towards each other along the inner wall of the U-shaped frame 9. Each slider 11 is forced to rotate around the axis of the rotating rod 4 by cooperating with the corresponding drive rod 111 and the drive slot 121 on the drive frame 12. The rotating rod 4 drives the two connecting frames 5 to rotate synchronously. The connecting frame 5, through the protruding rod 62, drives the positioning frame 6 to swing towards the web of the steel beam around the axis of the two rotating rods 4. This causes the clamping blocks 7 on both sides to gradually approach and finally abut tightly against both sides of the web of the H-shaped steel structure beam, realizing the function of clamping the web from both sides to the middle. This enables the reinforcing support triangle 3 to be reliably and quickly connected to the H-shaped steel structure beam without drilling or using additional connecting bolts, so that the reinforcing support triangle 3 can effectively reinforce the joint of the beam and column.

[0042] like Figures 5-8 As shown, the reinforcement structure in this embodiment also includes a V-shaped block 8 and a portal frame 15. A V-shaped block 8 is positioned on the side of the clamping block 7 facing the positioning frame 6. A rectangular groove 61 is formed on the positioning frame 6. The V-shaped block 8 is located within the rectangular groove 61 and can move horizontally within it. Guide grooves 63 are provided on the two symmetrical groove walls of the rectangular groove 61. The portal frame 15 is slidably positioned within both guide grooves 63. The portal frame 15 moves closer to or away from the clamping block 7 along the guide grooves 63. When the portal frame 15 moves closer to the clamping block 7 along the guide grooves 63, it is positioned between the two V-shaped inner walls of the V-shaped block 8. When the clamping block 7 moves (e.g., slips) on the web of the H-shaped steel beam, the V-shaped block 8 moves synchronously. As the V-shaped block 8 moves, it presses against the portal frame 15 through its V-shaped inner walls, causing the portal frame 15 to move away from the clamping block 7 along the guide grooves 63.

[0043] like Figure 8 and Figure 9 As shown, the portal frame 15 has a first chamber 151 and a second chamber 154 that are vertically connected. A positioning rod 152 is slidably arranged in the first chamber 151, and a first piston rod 153 is damped and slidably arranged in the second chamber 154. Hydraulic oil is provided in both chambers. The positioning frame 6 has a positioning hole 64 that communicates with the guide groove 63. The positioning rod 152 can be inserted and engaged with the positioning hole 64.

[0044] Before installation, the portal frame 15 is moved along the guide groove 63 to a predetermined position, i.e., the positioning rod 152 is aligned with the positioning hole 64. Then, the first piston rod 153 is pushed into the second chamber 154, causing the hydraulic oil in the second chamber 154 to flow into the first chamber 151. This pushes the positioning rod 152, located in the first chamber 151, outward and inserts it into the positioning hole 64, thereby limiting and locking the portal frame 15. This ensures that the initial fit between the V-block 8 and the portal frame 15 is accurate before the clamping block 7 contacts the web of the H-shaped steel beam. Once the device is installed, i.e., the reinforcing support tripod 3 is fixed to the beam-column node by the locking structure 31, and the clamping block 7 is in contact with the web of the H-shaped steel beam and in working condition, the first piston rod 153 is pulled away from the portal frame 15. At this time, the volume of the first chamber 151 increases and the pressure decreases. The hydraulic oil in the second chamber 154 flows into the first chamber 151, creating a negative pressure in the first chamber 151. This draws the positioning rod 152 into the first chamber 151, releasing the locking state between the portal frame 15 and the positioning hole 64. This ensures that if the clamping block 7 slides accidentally, it can smoothly push the portal frame 15, triggering the subsequent hydraulic amplification and positive feedback self-locking mechanism.

[0045] Example 2 provides a method for strengthening steel beam-column connection nodes, using the steel beam-column connection node strengthening structure from Example 1, which includes the following steps:

[0046] S1: Place the reinforcing support tripod 3 at the right angle where the first H-shaped steel beam 1 and the second H-shaped steel beam 2 are set at a 90-degree angle;

[0047] S2: The reinforcing support triangular frame 3 is initially locked to the first H-shaped steel beam 1 and the second H-shaped steel beam 2 by means of the locking structure 31;

[0048] S3: Push the clamping block 7 so that the portal frame 15 is located between the two V-shaped inner walls of the V-shaped block 8. Then move the portal frame 15 along the guide groove 63 to the position where the positioning rod 152 is directly opposite the positioning hole 64. Then push the first piston rod 153 into the second chamber 154 of the portal frame 15, so that the hydraulic oil in the second chamber 154 enters the first chamber 151, pushes out the positioning rod 152 and inserts it into the positioning hole 64, and locks the portal frame 15.

[0049] S4: The two sets of clamping components are driven by the drive mechanism, causing the clamping blocks 7 to move from both sides towards the middle, clamping the webs of the first H-shaped steel beam 1 and the second H-shaped steel beam 2; subsequently, the first piston rod 153 is pulled away from the portal frame 15, creating a negative pressure in the first chamber 151, drawing the positioning rod 152 into the first chamber 151, causing the positioning rod 152 to disengage from the positioning hole 64, and releasing the lock on the portal frame 15. Figure 7 , Figure 8 , Figure 10 and Figure 11 As shown, the positioning frame 6 is also equipped with a master pump 18 and a support rod 16. The support rod 16 is located between the master pump 18 and the rectangular groove 61. A lever 17 is rotatably mounted on the support rod 16. One end of the lever 17 is slidably connected to the portal frame 15, and the other end is slidably connected to the second piston rod 19 slidably mounted on the master pump 18. A piston is connected to one end of the second piston rod 19 that slides into the inner cavity of the master pump 18. The piston slides against the inner wall of the master pump 18. A return spring 20 is provided between the end of the piston away from the second piston rod 19 and the inner wall of the master pump 18. A slave pump 13 is fixedly mounted inside the slider 11. A hydraulic oil pipe 21 connects the slave pump 13 and the master pump 18. An L-shaped... Block 14, L-shaped block 14 and slider 11 are slidably engaged. Specifically, the longitudinal part of L-shaped block 14 slides through U-shaped frame 9 and is slidably engaged with U-shaped frame 9. The longitudinal inner wall of L-shaped block 14 is fixedly connected to the free end of piston rod of sub-pump 13. The longitudinal inner walls of the two L-shaped blocks 14 are in contact with the side of the two sliders 11 that are close to each other. Drive rod 111 is fixedly installed on the transverse part of L-shaped block 14. Lever 17 is divided into a long section and a short section with support rod 16 as the center. Both ends of lever 17 along its axial direction are provided with slots. Door frame 15 is slidably engaged with slots on the short section of lever 17. Second piston rod 19 is slidably engaged with slots on the long section of lever 17.

[0050] When the clamping block 7 slides on the web, it drives the V-shaped block 8 on its back side to move. The V-shaped inner wall of the V-shaped block 8 presses against the portal frame 15, causing it to move away from the clamping block 7 along the guide groove 63. The portal frame 15 pushes the lever 17 to rotate, and the lever 17 pushes the second piston rod 19 into the inner cavity of the master pump 18, which presses the hydraulic oil into the slave pump 13 through the hydraulic oil pipe 21. The piston rod of the slave pump 13 extends and pushes the L-shaped block 14 to move towards each other. The L-shaped block 14 drives the drive frame 12 and the rotating rod 4 to rotate further through the drive rod 111, so that the positioning frame 6 drives the clamping block 7 to move further towards the web, automatically increasing the clamping force.

[0051] Although this disclosure has been described with respect to only a limited number of embodiments, those skilled in the art who benefit from this disclosure will understand that various other embodiments can be devised without departing from the scope of the invention. Therefore, the scope of the invention should be limited only by the appended claims.

Claims

1. A steel beam-column connection reinforcement device, comprising a first H-shaped steel structure beam (1) and a second H-shaped steel structure beam (2), wherein the first H-shaped steel structure beam (1) and the second H-shaped steel structure beam (2) are perpendicular to each other, and a reinforcement support triangle (3) is provided at the right angle where the first H-shaped steel structure beam (1) and the second H-shaped steel structure beam (2) intersect, characterized in that: Two sets of clamping components are symmetrically arranged on each right-angled side of the reinforced support tripod (3). The two sets of clamping components are used to clamp the web of the H-shaped steel structure beam from both sides toward the middle. Each set of clamping components includes a mounting block (32), a rotating rod (4), a connecting frame (5), a positioning frame (6), a clamping block (7), and a driving structure. The mounting block (32) is fixedly installed on the outer wall of the right-angled side of the reinforced support tripod (3). The end of the mounting block (32) away from the reinforced support tripod (3) is perpendicular to the right-angled side of the reinforced support tripod (3). Rotating rods (4) are rotatably arranged between the outer walls. Two connecting frames (5) are rotatably arranged on the rotating rods (4). The end of all connecting frames (5) away from the rotating rods (4) is rotatably connected to a positioning frame (6). A clamping block (7) is slidably arranged on the side of the positioning frame (6) facing away from the rotating rods (4). The clamping block (7) is used to contact and cooperate with the web of the H-shaped steel structure beam. A driving mechanism is provided on each right-angle side of the reinforcing support triangular frame (3) to drive the clamping blocks (7) in the two sets of clamping assemblies on the right-angle side to move closer or further away from each other.

2. The steel beam-column connection reinforcement device according to claim 1, characterized in that: The driving structure includes a U-shaped frame (9), a two-way lead screw (10), a slider (11), a driving rod (111), and a driving frame (12). The U-shaped frame (9) is set on the right-angle side of the reinforcing support triangle (3). The two-way lead screw (10) is rotatably set inside the U-shaped frame (9). A slider (11) is threaded on each of the left and right threaded sections of the two-way lead screw (10). Both sliders (11) slide with the inner wall of the U-shaped frame (9). A driving rod (111) is set on the side of each slider (11) away from the inner wall of the right-angle side of the reinforcing support triangle (3). The driving rod (111) slides through the U-shaped frame (9) and is slidably connected to the driving frame (12). The driving frame (12) is fixedly connected to a rotating rod (4) in the corresponding clamping assembly.

3. A steel beam-column connection reinforcement device according to claim 1 or 2, characterized in that: The reinforcement device also includes a V-shaped block (8) and a portal frame (15). The clamping block (7) is provided with a V-shaped block (8) on the side facing the positioning frame (6). A rectangular groove (61) is opened on the positioning frame (6). The V-shaped block (8) is located in the rectangular groove (61) and can move horizontally in the rectangular groove (61). Guide grooves (63) are provided on the two symmetrical groove walls of the rectangular groove (61). The portal frame (15) is slidably arranged in the two guide grooves (63). The portal frame (15) moves closer to or away from the clamping block (7) along the guide groove (63). When the portal frame (15) moves closer to the clamping block (7) along the guide groove (63), the portal frame (15) is located between the two V-shaped inner walls of the V-shaped block (8).

4. The steel beam-column connection reinforcement device according to claim 3, characterized in that: The portal frame (15) has a first chamber (151) and a second chamber (154) that are vertically connected. A positioning rod (152) is slidably arranged in the first chamber (151), and a first piston rod (153) is damped and slidably arranged in the second chamber (154). A positioning hole (64) is provided on the positioning frame (6) that is connected to the guide groove (63). The positioning rod (152) can be inserted into the positioning hole (64).

5. The steel beam-column connection reinforcement device according to claim 4, characterized in that: A locking structure (31) is provided on each right-angle side of the reinforcing support triangle (3). There are multiple sets of locking structures (31). Each set of locking structures (31) includes a locking plate (311) and a locking bolt (312). Locking bolts (312) are threaded on both sides of the outer wall of the two right-angle sides of the reinforcing support triangle (3) with the central axis as the center. Locking plates (311) are connected between the two opposite locking bolts (312). When the reinforcing support triangle (3) is located at the 90-degree intersection of the first H-shaped steel beam (1) and the second H-shaped steel beam (2), the locking plate (311) is located on the side of the first H-shaped steel beam (1) and the second H-shaped steel beam (2) facing away from the reinforcing support triangle (3), and the locking bolts (312) are located on both sides of the first H-shaped steel beam (1) and the second H-shaped steel beam (2).

6. A steel beam-column connection reinforcement device according to claim 1 or 2, characterized in that: The positioning frame (6) is also equipped with a main pump (18) and a support rod (16). The support rod (16) is located between the main pump (18) and the rectangular groove (61). A lever (17) is rotatably mounted on the support rod (16). One end of the lever (17) is slidably connected to the portal frame (15), and the other end is slidably connected to the second piston rod (19) slidably mounted on the main pump (18). The end of the second piston rod (19) that slidably extends into the inner cavity of the main pump (18) is connected to a piston. The piston is connected to the main pump. (18) The inner wall is slidingly fitted. A return spring (20) is provided between the end of the piston away from the second piston rod (19) and the inner wall of the main pump (18). A sub-pump (13) is fixedly installed inside the slider (11). A hydraulic oil pipe (21) is connected between the sub-pump (13) and the main pump (18). An L-shaped block (14) is connected to the free end of the piston rod of the sub-pump (13). The L-shaped block (14) is slidingly fitted with the slider (11). The drive rod (111) is fixedly installed on the L-shaped block (14).

7. The steel beam-column connection reinforcement device according to claim 6, characterized in that: The lever (17) is divided into a long section and a short section around the support rod (16). The short section is slidably connected to the portal frame (15), and the long section is slidably connected to the second piston rod (19).

8. The steel beam-column connection reinforcement device according to claim 7, characterized in that: The longitudinal part of the L-shaped block (14) slides through the U-shaped frame (9) and slides with the U-shaped frame (9). The longitudinal inner wall of the L-shaped block (14) is fixedly connected to the free end of the piston rod of the pump (13). The longitudinal inner walls of the two L-shaped blocks (14) are in contact with the side of the two sliders (11) that are close to each other.

9. A method for reinforcing steel beam-column connection nodes, characterized in that, The reinforcement of the steel beam-column connection node using the steel beam-column connection node reinforcement device described in claim 5 specifically includes the following steps: S1: Place the reinforcing support tripod at the right angle where the first H-shaped steel beam and the second H-shaped steel beam are set at a 90-degree angle; S2: The reinforcing support triangular frame is initially locked to the first H-shaped steel beam and the second H-shaped steel beam through the locking structure; S3: Push the clamping block so that the portal frame is located between the two V-shaped inner walls of the V-shaped block, then move the portal frame along the guide groove to the position where the positioning rod is directly opposite the positioning hole, then push the first piston rod into the second chamber of the portal frame so that the hydraulic oil in the second chamber enters the first chamber, push out the positioning rod and insert it into the positioning hole to lock the portal frame; S4: Drive the two sets of clamping components through the drive mechanism to make the clamping blocks move from both sides toward the middle and clamp the webs of the first H-shaped steel structure beam and the second H-shaped steel structure beam; then, pull the first piston rod away from the portal frame to create a negative pressure in the first chamber, suck the positioning rod into the first chamber, disengage the positioning rod from the positioning hole, and release the lock on the portal frame.

10. A method for reinforcing steel beam-column connection nodes according to claim 9, characterized in that: The positioning frame is also equipped with a master pump and a support rod. The support rod is located between the master pump and the rectangular groove. A lever is rotatably mounted on the support rod. One end of the lever is slidably connected to the portal frame, and the other end is slidably connected to the second piston rod slidably mounted on the master pump. A piston is connected to the end of the second piston rod that slidably extends into the inner cavity of the master pump. The piston is slidably engaged with the inner wall of the master pump. A return spring is provided between the end of the piston away from the second piston rod and the inner wall of the master pump. A slave pump is fixedly mounted inside the slider. A hydraulic oil pipe is connected between the slave pump and the master pump. An L-shaped block is connected to the free end of the slave pump piston rod. The L-shaped block is slidably engaged with the slider. A drive rod is fixedly mounted on the L-shaped block. When the clamping block slides on the web, it drives the V-shaped block on its back to move. The inner wall of the V-shaped block squeezes the portal frame, causing it to move away from the clamping block along the guide groove. The portal frame pushes the lever to rotate, and the lever pushes the second piston rod into the inner cavity of the master pump, which presses hydraulic oil into the slave pump through the hydraulic oil pipe. The piston rod of the slave pump extends and pushes the L-shaped block to move towards each other. The L-shaped block drives the drive frame and the rotating rod to rotate further through the drive rod, so that the positioning frame drives the clamping block to move further towards the web, automatically increasing the clamping force.

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