A double-limb thin-walled pier structure system for improving the ship collision resistance of a bridge

Abstract

The utility model discloses a kind of double limb thin-walled pier structure system for improving the anti-ship performance of bridge, including two thin-walled pier body and longitudinal connecting beam group, the bottom end of two thin-walled pier body is consolidated with ground foundation, the top of two thin-walled pier body is connected with main girder or bent cap, multiple longitudinal connecting beam groups are connected between two thin-walled pier body, the longitudinal connecting beam group is spaced distribution between two thin-walled pier body along up-down direction in horizontal state, longitudinal connecting beam group and two thin-walled pier body between detachable connection, the longitudinal connecting beam group includes connecting crossbeam;The both ends of the connecting crossbeam are respectively supported on support steel plate, support steel plate is respectively connected with two the thin-walled pier body with bolt, the connection between connecting crossbeam and thin-walled pier body is inserted connection.The utility model is supported bridge by two thin-walled pier body, then the relative position of two thin-walled pier body is limited by multiple connecting beam groups, effectively improve the ability of bridge against ship collision.

Description

Technical Field

[0001] This utility model relates to the field of bridge engineering and technology, specifically to a double-limb thin-walled pier structure system that improves the anti-ship collision performance of bridges. Background Technology

[0002] Continuous rigid frame bridges often employ double thin-walled piers to reduce longitudinal stiffness, while this design also meets the support requirements for cantilever construction. However, current double thin-walled piers are generally independent, resulting in insufficient overall load-bearing capacity under ship impact and susceptibility to plastic damage. Therefore, improving the structural form of double thin-walled piers to enhance their impact toughness and enable rapid functional repair after a ship collision is a pressing issue that needs to be addressed in existing technologies. Utility Model Content

[0003] In order to overcome the above-mentioned defects of the prior art, the present invention provides an embodiment that solves the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a double-limb thin-walled pier structure system for improving the anti-ship collision performance of bridges, comprising: two thin-walled pier bodies 1 and a longitudinal connecting beam group; The bottom ends of the two thin-walled piers 1 are fixed to the foundation; The tops of the two thin-walled piers 1 are connected to the main beam; Multiple sets of longitudinal connecting beams connect the two thin-walled piers 1; The longitudinal connecting beams are horizontally distributed between the two thin-walled piers 1 in the vertical direction, and the longitudinal connecting beams are detachably connected to the two thin-walled piers 1.

[0005] Furthermore, the connecting beams are set between the two thin-walled piers 1; they are evenly distributed along the length of the two thin-walled piers 1, and the connection between the connecting beams and the thin-walled piers 1 is an insertion connection.

[0006] Furthermore, the supporting steel plates 2 are respectively fixedly installed on the adjacent sides of the two thin-walled piers 1; wherein, the upper and lower parts of the supporting steel plates 2 are provided with a number of evenly distributed bolt holes for detachable connection with the thin-walled piers 1 by anchor bolts 8.

[0007] Furthermore, both the upper and lower ends of the supporting steel plate 2 are provided with transverse stiffening plates 3, and the stiffening plates 3 are provided with multiple vertical bolt holes.

[0008] Furthermore, a plurality of vertical ribs 5 are provided between the supporting steel plate 2 and the stiffening plate 3, and the plurality of ribs 5 are evenly distributed along the transverse direction of the supporting steel plate 2.

[0009] Furthermore, the connecting beam includes a U-shaped clamping plate 4 and bolts 9; four U-shaped clamping plates 4 are provided between the upper and lower stiffening plates 3, and the four U-shaped clamping plates 4 are evenly distributed along the transverse direction of the supporting steel plate 2. The upper and lower parts of the U-shaped clamping plates 4 are provided with vertical bolt holes. The U-shaped clamping plates 4 and stiffening plates 3 are fixed by inserting bolts 9 into the vertical bolt holes of the stiffening plates 3 and the vertical bolt holes of the U-shaped clamping plates 4. After fixing, the U-shaped clamping plates 4 and stiffening plates 3 form a pin-type recess.

[0010] Furthermore, the connecting beam includes a steel tie beam 6, the two ends of which are inserted into the recesses to connect with the two thin-walled piers 1.

[0011] Furthermore, the top of the steel beam 6 is provided with a grout outlet 7.

[0012] Compared with existing technologies, this utility model has the following advantages: (1) The present invention supports the bridge with two thin-walled piers and restricts the relative position of the two thin-walled piers by multiple sets of connecting beams, thereby improving the overall integrity of the thin-walled piers and effectively enhancing the bridge's ability to resist ship collisions.

[0013] (2) This utility model resists energy consumption by connecting beams; after the connecting beams undergo plastic deformation, the thin-walled piers become the main energy-consuming structure, reducing the probability of bridge collapse due to excessive deformation of the thin-walled piers.

[0014] (3) By making the connection between the crossbeam and the thin-walled pier hinged, when they are under the same load, only shear force and pressure are transmitted, not bending moment. This has a limited impact on the overall stiffness of the pier body. While improving the anti-collision performance, it also reduces the impact on the load on the superstructure. In the event of a ship collision, the steel structure effectively reduces damage at the connection points between the thin-walled piers and the superstructure, decreasing the likelihood of bridge collapse due to severe damage to the main structure. Furthermore, the concrete filling within the steel beams enhances the shear and compressive strength of the double-limb thin-walled piers.

[0015] (4) In this utility model, the longitudinal connecting beam group and the thin-walled pier are all bolted together, which allows the connecting beam group to be assembled and constructed. This greatly improves the construction efficiency and the replacement efficiency after damage. Attached Figure Description

[0016] Figure 1 This is an elevation view of a double-limb thin-walled pier structure system for improving the anti-collision performance of bridges according to the present invention.

[0017] Figure 2 for Figure 1 A magnified view of a portion of point A in the middle.

[0018] Figure 3This is a side view of a double-limb thin-walled pier structure system for improving the anti-ship collision performance of bridges according to the present invention.

[0019] Figure 4 for Figure 3 A magnified view of a portion of point B in the middle.

[0020] Figure 5 This is a detailed drawing of the connecting beam assembly of this patent.

[0021] Reference numerals: 1. Thin-walled pier; 2. Supporting steel plate; 3. Stiffening plate; 4. U-shaped clamping plate; 5. Rib plate; 6. Steel tie beam; 7. Grout outlet hole; 8. Anchor bolt; 9. Bolt. Detailed Implementation

[0022] like Figures 1-5 As shown, this utility model provides a technical solution: a double-limb thin-walled pier structure system for improving the anti-ship collision performance of bridges, comprising: two thin-walled pier bodies 1 and a longitudinal connecting beam group; The bottom ends of the two thin-walled piers 1 are fixed to the foundation; The tops of the two thin-walled piers 1 are connected to the main beam; There are multiple sets of longitudinal connecting beams connecting the two thin-walled piers 1.

[0023] The longitudinal connecting beams are horizontally distributed between the two thin-walled piers 1 in the vertical direction, and the longitudinal connecting beams are detachably connected to the two thin-walled piers 1.

[0024] The connecting beams are arranged between the two thin-walled piers 1; they are evenly distributed along the length of the two thin-walled piers 1, and the connection between the connecting beams and the thin-walled piers 1 is an insertion connection.

[0025] The supporting steel plates 2 are respectively fixedly installed on the adjacent sides of the two thin-walled piers 1; the supporting steel plates 2 are provided with several evenly distributed bolt holes on the upper and lower parts for detachable connection with the thin-walled piers 1 by anchor bolts 8.

[0026] The supporting steel plate 2 is provided with horizontal stiffening plates 3 at both the upper and lower ends, and the stiffening plates 3 are provided with multiple vertical bolt holes.

[0027] Among them, a number of vertical ribs 5 are provided between the supporting steel plate 2 and the stiffening plate 3, and the multiple ribs 5 are evenly distributed along the transverse direction of the supporting steel plate 2.

[0028] The connecting beam includes a U-shaped clamping plate 4 and bolts 9; four U-shaped clamping plates 4 are provided between the upper and lower stiffening plates 3, and the four U-shaped clamping plates 4 are evenly distributed along the transverse direction of the supporting steel plate 2. The upper and lower parts of the U-shaped clamping plates 4 are provided with vertical bolt holes. The U-shaped clamping plates 4 and the stiffening plates 3 are fixed by inserting bolts 9 into the vertical bolt holes of the stiffening plates 3 and the vertical bolt holes of the U-shaped clamping plates 4. After fixing, the U-shaped clamping plates 4 and the stiffening plates 3 form a pin-type recess.

[0029] The connecting beam includes a steel tie beam 6, the two ends of which are inserted into the recesses to connect with the two thin-walled piers 1; the top of the steel tie beam 6 is provided with a grout outlet hole 7; after the steel tie beam 6 is installed, concrete is injected into the steel tie beam 6 through the grout outlet hole 7, so that the inner cavity of the steel tie beam 6 is filled with concrete, thereby enhancing the load-bearing performance of the connecting beam assembly.

[0030] The size of the recess is larger than that of the steel beam 6, allowing the steel beam 6 a certain range of movement within the recess. Firstly, the bottom of the thin-walled pier 1 is fixed to the foundation, and the top is connected to the main beam or cap beam. Longitudinal connecting beams are spaced horizontally and detachably connected between two thin-walled piers 1. Two supporting steel plates 2 are fixedly installed on adjacent sides of the two thin-walled piers 1 by anchor bolts 8. Each supporting steel plate 2 has several evenly distributed bolt holes at its upper and lower parts for detachable connection to multiple connecting beams, allowing the connecting beams to connect to the corresponding thin-walled piers 1. Both the upper and lower ends of the supporting steel plate 2 are provided with transverse stiffening plates 3, each with several evenly distributed vertical bolt holes. The supporting steel plate 2 and the stiffening plates 3... Vertical ribs 5 are provided, and multiple ribs 5 are evenly distributed along the transverse direction of the supporting steel plate 2; four U-shaped clamping plates 4 are provided between the upper and lower stiffening plates 3, and the four U-shaped clamping plates 4 are evenly distributed along the transverse direction of the supporting steel plate 2. Each U-shaped clamping plate 4 has vertical bolt holes at the top and bottom, which are used to connect with the stiffening plate 3 by bolts 9, forming an assembly space with the upper and lower stiffening plates 3 to restrict the movement of the steel beam 6 along the direction of the thin-walled pier 1; the steel beam 6 has a grout outlet 7 at the top. After the two ends of the steel beam 6 are welded and fixed to the U-shaped clamping plates 4, concrete is injected into the steel beam 6 through the grout outlet 7, so that the inner cavity of the steel beam 6 is filled with concrete, thereby enhancing the load-bearing performance of the connecting beam group.

[0031] Because the size of the recess is larger than that of the steel beam 6, the steel beam 6 has a certain range of motion within the recess. This design provides the steel beam 6 with space for deformation when subjected to external forces, allowing it to undergo a certain displacement within the recess, thereby buffering and absorbing the energy generated by external forces to a certain extent. When the longitudinal connecting beam group and the thin-walled pier 1 are subjected to forces together, this mobility of the steel beam 6 ensures that the connection between the connecting beam and the thin-walled pier 1 does not form a rigid constraint, avoiding the transmission of bending moment. At the same time, the range of motion of the steel beam 6 within the recess also limits its excessive deformation, ensuring the stability and reliability of the connection, with minimal impact on the overall stiffness of the thin-walled pier 1, which helps to improve the impact resistance of the connecting beam. Since the longitudinal connecting beam components and the thin-walled pier 1 are all connected by bolts 9, the connecting beam group can be assembled, greatly improving construction efficiency and replacement efficiency after damage.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A double-limb thin-walled pier structure system for improving the collision resistance of bridges, characterized in that, include: Two thin-walled piers and longitudinal connecting beams; The bottom ends of the two thin-walled piers are fixed to the foundation. The tops of the two thin-walled piers are connected to the main beam; Multiple sets of longitudinal connecting beams connect the two thin-walled piers; The longitudinal connecting beams are horizontally distributed between the two thin-walled piers in the vertical direction, and the longitudinal connecting beams are detachably connected to the two thin-walled piers.

2. The double-limb thin-walled pier structure system for improving bridge collision resistance according to claim 1, characterized in that: The connecting beams are set between the two thin-walled piers; they are evenly distributed along the length of the two thin-walled piers, and the connection between the connecting beams and the thin-walled piers is an insertion connection.

3. The double-limb thin-walled pier structure system for improving bridge collision resistance according to claim 2, characterized in that: Supporting steel plates are fixedly installed on the adjacent sides of the two thin-walled piers respectively; wherein, the upper and lower parts of the supporting steel plates are provided with a number of evenly distributed bolt holes for detachable connection with the thin-walled piers by anchor bolts.

4. The double-limb thin-walled pier structure system for improving bridge collision resistance according to claim 3, characterized in that: Both the upper and lower ends of the supporting steel plate are provided with horizontal stiffening plates, and the stiffening plates are provided with multiple vertical bolt holes.

5. A double-limb thin-walled pier structure system for improving bridge collision resistance according to claim 4, characterized in that: Several vertical ribs are provided between the supporting steel plate and the stiffening plate, and the multiple ribs are evenly distributed along the transverse direction of the supporting steel plate.

6. A double-limb thin-walled pier structure system for improving bridge collision resistance according to claim 5, characterized in that: The connecting beam includes U-shaped clamping plates and bolts; four U-shaped clamping plates are provided between the upper and lower stiffening plates, and the four U-shaped clamping plates are evenly distributed along the transverse direction of the supporting steel plate. Vertical bolt holes are provided at the upper and lower parts of the U-shaped clamping plates. The U-shaped clamping plates and stiffening plates are fixed by inserting bolts into the vertical bolt holes of the stiffening plates and the vertical bolt holes of the U-shaped clamping plates. After fixing, the U-shaped clamping plates and stiffening plates form a pin-type recess.

7. A double-limb thin-walled pier structure system for improving bridge collision resistance according to claim 6, characterized in that: The connecting beam includes a steel tie beam, the two ends of which are inserted into the recesses to connect with the two thin-walled piers.

8. A double-limb thin-walled pier structure system for improving bridge collision resistance according to claim 7, characterized in that: The top of the steel tie beam is equipped with a grout outlet.

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