H-shaped steel structure connecting structure for bridge

By employing detachable connectors and locking bolt systems in H-shaped steel structures for bridges, the challenges of connection stability and disassembly have been solved, achieving both reliable connection and convenient disassembly.

CN224119425UActive Publication Date: 2026-04-14JIANGSU JIETONG HEAVY IND CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-14
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

The existing H-beam steel structure used in bridges has problems with loose bolts and poor connection stability in the connection between longitudinal and transverse beams. At the same time, the welding fixing method is costly to process and difficult to disassemble.

Method used

The system employs detachable connectors and locking bolts, using a combination of fixing sleeves, tie rods, and pressure plates to achieve a reliable connection between the H-shaped longitudinal beams and transverse beams, and further enhances connection stability through locking bolts and protruding columns.

Benefits of technology

This design achieves a reliable connection for H-shaped steel structures, preventing detachment, while also facilitating disassembly and installation and reducing processing costs.

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Abstract

The utility model discloses an H-shaped steel structure connecting structure for a bridge, which comprises an H-shaped longitudinal beam and an H-shaped cross beam and belongs to the technical field of steel structures, connecting pieces are mounted at the ends in C-shaped grooves on two opposite sides of the H-shaped cross beam, the connecting pieces are detachably and fixedly connected with the H-shaped cross beam and the H-shaped longitudinal beam, a fixing sleeve is slidably sleeved outside the H-shaped cross beam, and the H-shaped longitudinal beam is fixedly connected with the H-shaped cross beam. A locking bolt is installed on the fixing sleeve, one end of the locking bolt abuts against the outer wall of the H-shaped cross beam, a pull rod is obliquely connected to the fixing sleeve, one end of the pull rod is fixedly connected with a pressing plate attached to the outer side wall of the H-shaped longitudinal beam, the two opposite sides of the pressing plate are bent to form bent plates, and a baffle slidably penetrates through the bent plates. The baffle is in threaded connection with a compression bolt, and one end of the compression bolt abuts against the inner side wall of the H-shaped longitudinal beam. The pull rod plays a good role in supporting and lifting the fixing sleeve, the situation that the H-shaped cross beam and the H-shaped longitudinal beam are easily separated is effectively prevented, connection is reliable, and disassembly is convenient.
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Description

Technical Field

[0001] This utility model relates to the field of steel structure technology, and in particular, designs an H-shaped steel structure connection structure for bridges. Background Technology

[0002] H-beams are an economical and efficient profile with a more optimized cross-sectional area distribution and a more reasonable strength-to-weight ratio. They are commonly used in the main beams and supports of bridges.

[0003] H-beams can be divided into longitudinal beams and transverse beams depending on their installation location. These beams are interconnected to form the steel structure connection. Currently, the connection between longitudinal and transverse beams is typically achieved through bolting or welding. However, relying solely on a single bolt at the end of the transverse beam to connect to the longitudinal beam can lead to bolt loosening and poor connection stability. While welding provides relatively high connection strength, it is costly to manufacture and makes disassembly difficult, undoubtedly causing considerable trouble for the dismantling process. Utility Model Content

[0004] The technical problem to be solved by this utility model is: in order to overcome the above-mentioned defects in the prior art, a bridge H-shaped steel structure connection structure that is reliable and easy to disassemble is provided.

[0005] The technical solution adopted by this utility model to solve its technical problem is: an H-shaped steel structure connection structure for bridges, including H-shaped longitudinal beams and H-shaped transverse beams. Connectors are installed at the ends of the C-shaped grooves on both sides of the H-shaped transverse beams. The connectors are detachably fixed to both the H-shaped transverse beams and the H-shaped longitudinal beams. A fixing sleeve is slidably fitted on the outside of the H-shaped transverse beams. A locking bolt is installed on the fixing sleeve. One end of the locking bolt abuts against the outer wall of the H-shaped transverse beam. A tie rod is obliquely connected to the fixing sleeve. One end of the tie rod is fixedly connected to a pressure plate that fits against the outer wall of the H-shaped longitudinal beam. The opposite sides of the pressure plate are bent to form a bending plate. A baffle is slidably passed through the bending plate. A clamping bolt is threaded onto the baffle. One end of the clamping bolt abuts against the inner wall of the H-shaped longitudinal beam.

[0006] Furthermore, a through groove is provided inside the fixing sleeve. The through groove is an H-shaped groove that mates with the H-shaped crossbeam. The locking bolt extends into the through groove after passing through the wall of the fixing sleeve.

[0007] Furthermore, the locking bolt is perpendicular to both the upper and lower surfaces of the H-shaped beam.

[0008] Furthermore, the fixing sleeve has a protruding post, and the protruding post has a threaded hole. The threaded hole passes through the protruding post and communicates with the through groove. The locking bolt is threadedly connected to the threaded hole.

[0009] Furthermore, multiple locking bolts are installed on both the upper and lower surfaces of the fixing sleeve, and the multiple locking bolts located on the same surface are evenly distributed.

[0010] Furthermore, the baffle and the pressure plate are parallel to each other, and the baffle is in contact with the inner sidewall of the H-shaped longitudinal beam.

[0011] Furthermore, the clamping bolt is perpendicular to the inner wall of the H-shaped longitudinal beam.

[0012] Furthermore, a limiting block is provided at one end of the baffle, the limiting block is located on the side of the bending plate away from the clamping bolt, and the limiting block can abut against the bending plate.

[0013] Furthermore, the connecting component includes an upper connecting plate, a lower connecting plate, a crossbeam connecting plate, and a longitudinal beam connecting plate. The upper connecting plate and the lower connecting plate are disposed opposite to each other. The crossbeam connecting plate and the longitudinal beam connecting plate are fixedly connected between the upper connecting plate and the lower connecting plate. The upper connecting plate, the lower connecting plate, and the crossbeam connecting plate are detachably connected to each side wall forming a C-shaped groove on the H-shaped crossbeam. The longitudinal beam connecting plate is detachably connected to the outer side wall of the H-shaped longitudinal beam.

[0014] The beneficial effects of this utility model are as follows: In the bridge H-shaped steel structure connection structure of this utility model, the end of the H-shaped crossbeam is initially fixedly connected to the outer wall of the H-shaped longitudinal beam through the connector. Then, after the fixing sleeve is moved into place, the pressure plate is pressed and fixed to the inner wall of the H-shaped longitudinal beam by the clamping bolt. Finally, the fixing sleeve is locked and fixed to the outside of the H-shaped crossbeam by the locking bolt. At this time, the tie rod provides good support and lifting for the fixing sleeve, effectively preventing the H-shaped crossbeam and H-shaped longitudinal beam from easily separating. The connection is reliable. At the same time, the H-shaped crossbeam and H-shaped longitudinal beam are connected in a detachable manner, which facilitates the separation of the two and makes the operation simple. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0016] Figure 1 This is a perspective view of the H-shaped steel structure connection structure for bridges according to this utility model;

[0017] Figure 2 yes Figure 1 The enlarged view of a portion of point A in the H-beam steel structure connecting the bridge shown.

[0018] Figure 3 yes Figure 1 The bridge shown is a three-dimensional view of the H-beam steel structure connecting the two sections from another perspective.

[0019] Figure 4 yes Figure 3 The enlarged view of point B in the H-beam steel structure connecting the bridge shown.

[0020] Figure 5 yes Figure 1 The bridge shown is a top view of the H-beam steel structure connection structure.

[0021] In the diagram: 1. H-shaped longitudinal beam, 2. H-shaped transverse beam, 3. Connector, 31. Upper connecting plate, 32. Lower connecting plate, 33. Transverse beam connecting plate, 34. Longitudinal beam connecting plate, 35. Fastening bolt, 36. Nut, 4. Fixing sleeve, 41. Through groove, 42. Protruding column, 421. Threaded hole, 5. Locking bolt, 6. Tie rod, 7. Pressure plate, 71. Bending plate, 8. Baffle, 81. Limiting block, 9. Pressing bolt. Detailed Implementation

[0022] The present invention will now be described in detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0023] Please see Figure 1-5 This utility model provides an H-shaped steel structure connection structure for bridges, including an H-shaped longitudinal beam 1 and an H-shaped transverse beam 2. The end of the H-shaped transverse beam 2 is fixedly connected to the H-shaped longitudinal beam 1, and the H-shaped transverse beam 2 is perpendicular to the H-shaped longitudinal beam. Both the H-shaped longitudinal beam 1 and the H-shaped transverse beam 2 are H-shaped steel structures. When using this utility model's H-shaped steel structure connection structure for bridges, the H-shaped longitudinal beam 1 is vertically fixedly installed on the supporting plane, and the H-shaped transverse beam 2 is installed horizontally on the H-shaped longitudinal beam 1.

[0024] Both the H-shaped longitudinal beam 1 and the H-shaped transverse beam 2 have two opposing C-shaped grooves. Connectors 3 are installed at the ends of the C-shaped grooves on opposite sides of the H-shaped transverse beam 2. The connectors 3 are detachably and fixedly connected to both the H-shaped transverse beam 2 and the H-shaped longitudinal beam 1. In this embodiment, the connector 3 includes an upper connecting plate 31, a lower connecting plate 32, a transverse beam connecting plate 33, and a longitudinal beam connecting plate 34. The upper connecting plate 31 and the lower connecting plate 32 are oppositely arranged. The transverse beam connecting plate 33 and the longitudinal beam connecting plate 34 are fixedly connected between the upper connecting plate 31 and the lower connecting plate 32. The longitudinal beam connecting plate 34 is also fixedly connected to the upper connecting plate 31, the lower connecting plate 32, and the transverse beam connecting plate 33. The upper connecting plate 31, the lower connecting plate 32, and the transverse beam connecting plate 33 are detachably connected to the side walls of the C-shaped grooves on the H-shaped transverse beam 2, and the longitudinal beam connecting plate 34 is detachably connected to the outer side wall of the H-shaped longitudinal beam 1.

[0025] In this embodiment, the upper connecting plate 31, the lower connecting plate 32, and the crossbeam connecting plate 33 are fitted against the side walls forming the C-shaped grooves on the H-shaped crossbeam 2, and the longitudinal beam connecting plate 34 is fitted against the outer side wall of the H-shaped longitudinal beam 1, thereby increasing the contact area and improving connection stability. Furthermore, the upper connecting plate 31, the lower connecting plate 32, and the crossbeam connecting plate 33 are fixedly connected to the side walls forming the C-shaped grooves on the H-shaped crossbeam 2, and the longitudinal beam connecting plate 34 is fixedly connected to the outer side wall of the H-shaped longitudinal beam 1 using mutually cooperating fastening bolts 35 and nuts 36.

[0026] A fixing sleeve 4 is slidably fitted onto the outside of the H-shaped crossbeam 2. The fixing sleeve 4 has a square sleeve structure and a through groove 41 inside. The through groove 41 is an H-shaped groove that mates with the H-shaped crossbeam 2. The fixing sleeve 4 can be fitted onto the outside of the H-shaped crossbeam 2 from one end. Locking bolts 5 are installed on both the upper and lower surfaces of the fixing sleeve 4. The locking bolts 5 pass through the wall of the fixing sleeve 4 and extend into the through groove 41, with one end of the locking bolts 5 abutting against the upper surface of the H-shaped crossbeam 2. When the fixing sleeve 4 moves into place along the length of the H-shaped crossbeam 2, the user can tighten the locking bolts 5 to achieve a locking relationship between the H-shaped crossbeam 2 and the fixing sleeve 4.

[0027] The locking bolts 5 are perpendicular to both the upper and lower surfaces of the H-shaped beam 2, thus ensuring that the locking force of the locking bolts 5 can be fully applied to the H-shaped beam 2. In addition, multiple locking bolts 5 are installed on both the upper and lower surfaces of the fixing sleeve 4, and the multiple locking bolts 5 located on the same surface are evenly distributed to ensure that the force on the H-shaped beam 2 is relatively balanced.

[0028] In a preferred embodiment, protruding posts 42 are provided on both the upper and lower surfaces of the fixing sleeve 4. Threaded holes 421 are formed on the protruding posts 42, which pass through the posts 42 and communicate with the through groove 41. The locking bolt 5 is threadedly connected to the threaded holes 421. By providing the protruding posts 42, the length of the threaded holes 421 is extended, increasing the contact area between the locking bolt 5 and the protruding posts 42. This also enhances the structural strength of the fixing sleeve 4 at the location where the locking bolt 5 is installed, effectively preventing the locking bolt 5 from easily slipping and cracking around the locking bolt 5 on the fixing sleeve 4, greatly increasing the reliability of the connection.

[0029] A tie rod 6 is obliquely fixedly connected to the fixed sleeve 4. A pressure plate 7 is vertically fixedly connected to the end of the tie rod 6 away from the fixed sleeve 4. The pressure plate 7 is in contact with the outer wall of the H-shaped longitudinal beam 1. The tie rod 6 is fixed to the fixed sleeve 4 and the pressure plate 7 by welding. The opposite sides of the pressure plate 7 are bent to form a bent plate 71. A baffle 8 is slidably passed through the bent plate 71. The baffle 8 is parallel to the pressure plate 7. A clamping bolt 9 is threadedly connected to the baffle 8. One end of the clamping bolt 9 abuts against the inner wall of the H-shaped longitudinal beam 1. In this embodiment, there are two tie rods 6, which are arranged opposite each other on opposite sides of the fixed sleeve 4 to improve the reliability of the connection.

[0030] During connection, the sliding fixing sleeve 4 moves the tie rod 6 along with the pressure plate 7. When the pressure plate 7 is in contact with the outer wall of the H-shaped longitudinal beam 1, the baffle 8 is inserted through the bending plate 71. Then, the clamping bolt 9 is installed on the baffle 8 and screwed in, so that one end of the clamping bolt 9 abuts against the inner wall of the H-shaped longitudinal beam 1. At this time, the pressure plate 7 and the H-shaped longitudinal beam 1 are relatively fixed under the action of the clamping bolt 9. Next, the fixing sleeve 4 is locked and fixed to the H-shaped crossbeam 2 by tightening the locking bolt 5. At this time, both ends of the tie rod 6 are fixed to the H-shaped longitudinal beam 1 and the H-shaped crossbeam 2 respectively. The pulling action of the tie rod 6 prevents the H-shaped crossbeam 2 from easily detaching from the H-shaped longitudinal beam 1. At the same time, the fixing sleeve 4 is sleeved on the outside of the H-shaped crossbeam 2, which has a supporting and lifting effect on the H-shaped crossbeam 2, effectively preventing the fixing sleeve 4 from detaching from the H-shaped crossbeam 2. In addition, the baffle 8 is in contact with the inner wall of the H-shaped longitudinal beam 1. At this time, the side wall of the H-shaped longitudinal beam 1 is clamped between the baffle 8 and the pressure plate 7, which effectively prevents the baffle 8 and the pressure plate 7 from easily moving relative to the H-shaped longitudinal beam 1 on the inner and outer sides.

[0031] In this embodiment, the clamping bolt 9 is perpendicular to the inner wall of the H-shaped longitudinal beam 1 so that the clamping force of the clamping bolt 9 can be fully applied to the inner wall of the H-shaped longitudinal beam 1.

[0032] In addition, a limiting block 81 is provided at one end of the baffle 8. The limiting block 81 is located on the side of the bending plate 71 away from the clamping bolt 9. The limiting block 81 can abut against the bending plate 71. By setting the limiting block 81, the movement of the baffle 8 through the bending plate 71 can be restricted, so as to prevent the baffle 8 from separating from the bending plate 71 when it is inserted into the bending plate 71.

[0033] The bridge H-shaped steel structure connection structure of this utility model has the following features: the end of the H-shaped crossbeam 2 is initially fixed to the outer wall of the H-shaped longitudinal beam 1 through the connector 3; then, after the fixing sleeve 4 is moved into place, the pressure plate 7 is pressed and fixed to the inner wall of the H-shaped longitudinal beam 1 using the clamping bolt 9; finally, the fixing sleeve 4 is locked and fixed to the outside of the H-shaped crossbeam 2 by the locking bolt 5. At this time, the tie rod 6 provides good support and lifting for the fixing sleeve 4, effectively preventing the H-shaped crossbeam 2 from easily separating from the H-shaped longitudinal beam 1, ensuring a reliable connection. At the same time, the H-shaped crossbeam 2 and the H-shaped longitudinal beam 1 are connected in a detachable manner, which facilitates disassembly between the two and simplifies the operation.

[0034] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the scope of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A bridge H-shaped steel structure connection structure, comprising H-shaped longitudinal beams and H-shaped transverse beams, characterized in that: Connectors are installed at the ends of the C-shaped grooves on both sides of the H-shaped crossbeam. The connectors are detachably fixed to both the H-shaped crossbeam and the H-shaped longitudinal beam. A fixing sleeve is slidably fitted on the outside of the H-shaped crossbeam. A locking bolt is installed on the fixing sleeve. One end of the locking bolt abuts against the outer wall of the H-shaped crossbeam. A tie rod is obliquely connected to the fixing sleeve. One end of the tie rod is fixedly connected to a pressure plate that fits against the outer wall of the H-shaped longitudinal beam. The opposite sides of the pressure plate are bent to form a bending plate. A baffle is slidably passed through the bending plate. A clamping bolt is threaded onto the baffle. One end of the clamping bolt abuts against the inner wall of the H-shaped longitudinal beam.

2. The bridge H-beam steel structure connection structure as described in claim 1, characterized in that: The fixing sleeve has a through groove, which is an H-shaped groove that mates with the H-shaped crossbeam. The locking bolt passes through the wall of the fixing sleeve and extends into the through groove.

3. The bridge H-beam steel structure connection structure as described in claim 1, characterized in that: The locking bolt is perpendicular to both the upper and lower surfaces of the H-shaped beam.

4. The bridge H-beam steel structure connection structure as described in claim 2, characterized in that: The fixing sleeve has a protruding post, and the protruding post has a threaded hole. The threaded hole passes through the protruding post and communicates with the through groove. The locking bolt is threadedly connected to the threaded hole.

5. The bridge H-beam steel structure connection structure as described in claim 3, characterized in that: Multiple locking bolts are installed on both the upper and lower surfaces of the fixing sleeve, and the multiple locking bolts located on the same surface are evenly arranged.

6. The bridge H-beam steel structure connection structure as described in claim 1, characterized in that: The baffle is parallel to the pressure plate, and the baffle is in contact with the inner wall of the H-shaped longitudinal beam.

7. The bridge H-beam steel structure connection structure as described in claim 1, characterized in that: The clamping bolt is perpendicular to the inner wall of the H-shaped longitudinal beam.

8. The bridge H-beam steel structure connection structure as described in claim 6, characterized in that: A limiting block is protruding from one end of the baffle. The limiting block is located on the side of the bending plate away from the clamping bolt, and the limiting block can abut against the bending plate.

9. The bridge H-beam steel structure connection structure as described in claim 1, characterized in that: The connector includes an upper connecting plate, a lower connecting plate, a crossbeam connecting plate, and a longitudinal beam connecting plate. The upper connecting plate and the lower connecting plate are arranged opposite to each other. The crossbeam connecting plate and the longitudinal beam connecting plate are fixedly connected between the upper connecting plate and the lower connecting plate. The upper connecting plate, the lower connecting plate, and the crossbeam connecting plate are detachably connected to each side wall forming a C-shaped groove on the H-shaped crossbeam. The longitudinal beam connecting plate is detachably connected to the outer side wall of the H-shaped longitudinal beam.