Anti-seismic protection device suitable for bridge extension pipeline

Abstract

The utility model relates to an anti-seismic protection device suitable for a bridge extension pipeline, which comprises a hanging bracket, the hanging bracket is of an inverted door-shaped structure, one end of the hanging bracket is fixedly arranged on a transverse wall of an L-shaped groove at the bottom of an original bridge, and the other end of the hanging bracket is fixedly arranged on a transverse wall of an L-shaped groove at the bottom of an extension bridge. A cable bridge used for placing a cable is installed above the bottom of the hanging bracket, transverse anti-seismic rods are fixedly connected to the two sides of the hanging bracket through anti-seismic connecting pieces, and the transverse anti-seismic rods are fixed to the vertical walls of the L-shaped grooves in the bottoms of the original bridge and the extension bridge through anti-seismic connecting pieces. Two vertical anti-seismic rods are fixedly connected to the upper portion of the bottom of the hanging bracket through anti-seismic connecting pieces, the vertical anti-seismic rods are fixed to the transverse walls of the L-shaped grooves in the bottoms of the original bridge and the extension bridge through the anti-seismic connecting pieces, and the vertical anti-seismic rods and the bottom of the hanging bracket are distributed in a 45-degree included angle mode in the vertical direction. The device can effectively solve the problems of migration protection of bridge extension pipelines and the like.

Description

Technical Field

[0001] The utility model belongs to the technical field of pipeline anti-seismic protection devices, and in particular relates to an anti-seismic protection device for pipelines suitable for bridge expansion. Background Art

[0002] In recent years, with the rapid development of urban transportation and the booming port economy, the number of vehicles in cities has increased, congestion has intensified, and the expansion of urban roads and bridges has increased. As bridges are expanded, the relocation of power pipelines attached to bridges has become a major challenge. Relocating power pipelines inevitably leads to project delays and increased costs, especially in urban power pipeline relocation, which is complex and has a significant social impact. How to prevent the relocation and rerouting of power and information pipelines attached to bridges during construction, protecting them in situ and ensuring their safe operation, remains a major technical challenge in urban bridge expansion projects. Furthermore, vibrations between the new bridge and the existing one significantly impact cable pipelines, making seismic protection a significant technical challenge during pipeline relocation. Summary of the Invention

[0003] The purpose of this utility model is to overcome the shortcomings of the existing technology and provide a seismic protection device suitable for bridge expansion pipelines, which can avoid the economic losses caused by the interruption of original power supply due to the relocation of power pipelines in bridge expansion projects, ensure uninterrupted power supply during the construction of bridge expansion and pipeline relocation, shorten the construction period, and greatly reduce the social impact.

[0004] The purpose of the present utility model is achieved through the following technical scheme. The seismic protection device suitable for bridge expansion pipelines includes a hanger, which is an inverted gate-shaped structure. One end of the hanger is fixedly mounted on the horizontal wall of the L-shaped groove at the bottom of the original bridge, and the other end of the hanger is fixedly mounted on the horizontal wall of the L-shaped groove at the bottom of the expanded bridge. A cable tray for placing cables is installed above the bottom of the hanger, and horizontal seismic rods are connected and fixed on both sides of the hanger through seismic connectors. The horizontal seismic rods are fixed to the vertical walls of the L-shaped grooves at the bottom of the original bridge and the expanded bridge through seismic connectors. Two vertical seismic rods are connected and fixed above the bottom of the hanger through seismic connectors. The vertical seismic rods are fixed to the horizontal walls of the L-shaped grooves at the bottom of the original bridge and the expanded bridge through seismic connectors, and the vertical seismic rods are distributed at a 45-degree angle to the bottom of the hanger in the vertical direction.

[0005] The beneficial effects of the present invention are as follows: compared with the prior art, the device of the present invention can avoid the economic losses caused by the original power outage caused by the relocation of power pipelines in bridge expansion projects, can ensure uninterrupted power supply during the construction of bridge expansion and pipeline relocation, shorten the construction period, and greatly reduce the social impact; in addition, it can reduce the impact of vibration between the new and old bridges on the cables after the bridge expansion, thereby increasing the protection of the cables and extending the service life of the cables. The present invention has the advantages of convenient construction, two-way and two-sided earthquake resistance, full protection of cables, shortened construction period, reduced cost, and space saving, and can effectively solve the problems of bridge expansion pipeline relocation protection.

[0006] Preferably, the hanger includes a bottom support rod and two vertical hangers, one end of the two vertical hangers are respectively fixed to the two ends of the bottom support rod through corner reinforcements, and the other ends of the two vertical hangers are installed with bases, which are fixed to the transverse walls of the L-shaped grooves at the bottom of the original bridge and the expanded bridge through expansion bolts; through the arrangement of the above structure, the formation and disassembly of the hanger are more convenient, and the structure after installation is also more stable.

[0007] Preferably, one end of the two transverse anti-seismic rods is fixed to the bottom of both sides of the hanger through the anti-seismic connectors, and the anti-seismic connectors on the other ends of the two transverse anti-seismic rods are fixed to the vertical walls of the L-shaped grooves at the bottom of the original bridge and the expanded bridge through expansion bolts, and the transverse anti-seismic rods are distributed at an angle to the side edges of the hanger; through the arrangement of the above structure, transverse vibration can be resisted, thereby reducing pipeline vibration and protecting power pipelines.

[0008] Preferably, one end of the two vertical seismic rods are located on both sides of the cable tray, and the seismic connectors on the other ends of the two vertical seismic rods are fixed to the horizontal walls of the L-shaped grooves at the bottom of the original bridge and the expanded bridge through expansion bolts; through the setting of the above structure, vertical vibration can be resisted, thereby reducing pipeline vibration and protecting power pipelines.

[0009] Preferably, the two sides of the cable tray are fixed to the bottom of the hanger by limiting fasteners; this not only facilitates the cable tray to better limit and fix the cables, but also reduces the displacement of the cable tray through the limiting fasteners.

[0010] Preferably, the vertical hanger, the bottom support rod, the horizontal anti-seismic rod and the vertical anti-seismic rod are all made of channel steel; by using channel steel, the cost is greatly reduced and the production is more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the main structure of the pipeline anti-seismic protection device installed in the utility model.

[0012] Figure 2 It is a schematic diagram of the top view of the pipeline anti-seismic protection device of the present utility model.

[0013] Figure 3 It is a structural schematic diagram of the anti-seismic connector and the expansion bolt of the utility model.

[0014] The numbers in the accompanying drawings are: 1. hanger; 2. original bridge; 3. L-shaped groove; 4. expanded bridge; 5. cable tray; 6. seismic connector; 7. horizontal seismic rod; 8. vertical seismic rod; 9. corner reinforcement; 10. base; 11. bottom support rod; 12. vertical hanger; 31. horizontal wall; 32. vertical wall; 51. limit fastener. DETAILED DESCRIPTION

[0015] The following is a detailed introduction to the present invention in conjunction with the accompanying drawings: Figures 1 to 3 As shown, the utility model includes a hanger 1, which is an inverted gate-shaped structure. One end of the hanger 1 is fixedly mounted on the horizontal wall 31 of the L-shaped groove 3 at the bottom of the original bridge 2, and the other end of the hanger 1 is fixedly mounted on the horizontal wall 31 of the L-shaped groove 3 at the bottom of the expanded bridge 4. A cable tray 5 for placing cables is installed above the bottom of the hanger 1. Both sides of the hanger 1 are connected and fixed with transverse anti-seismic rods 7 through anti-seismic connectors 6. The transverse anti-seismic rods 7 are fixed to the vertical ends of the L-shaped grooves 3 at the bottom of the original bridge 2 and the expanded bridge 4 through the anti-seismic connectors 6. On the wall 32, two vertical seismic rods 8 are connected and fixed above the bottom of the hanger 1 through seismic connectors 6. The vertical seismic rods 8 are fixed to the transverse wall 31 of the L-shaped groove 3 at the bottom of the original bridge 2 and the expanded bridge 4 through the seismic connectors 6, and the vertical seismic rods 8 are distributed at a 45-degree angle to the bottom of the hanger 1 in the vertical direction. This makes the lifting force of the vertical seismic rods 8 in the vertical direction of the hanger 1 uniform, so that when resisting the vertical vibration of the original bridge 2 and the expanded bridge 4, the seismic force is more uniform, reducing the vibration of the pipeline.

[0016] Hanger 1 includes a bottom support rod 11 and two vertical hangers 12. One end of each vertical hanger 12 is fixed to the ends of the bottom support rod 11 via corner reinforcements 9. The other end of each vertical hanger 12 is mounted with a base 10. The base 10 is fixed to the transverse wall 31 of the L-shaped groove 3 at the bottom of the original bridge 2 and the expanded bridge 4 via expansion bolts. Bolt mounting holes are provided at both ends of the vertical hangers 12.

[0017] One end of the two transverse anti-seismic rods 7 is fixed to the bottom of each side of the hanger 1 via anti-seismic connectors 6. The anti-seismic connectors 6 on the other ends of the two transverse anti-seismic rods 7 are fixed to the vertical walls 32 of the L-shaped grooves 3 at the bottom of the original bridge 2 and the expanded bridge 4 via expansion bolts. The transverse anti-seismic rods 7 are arranged at an angle to the side edges of the hanger 1. Bolt mounting holes are provided at both ends of the transverse anti-seismic rods 7.

[0018] One end of the two vertical seismic rods 8 is located on both sides of the cable tray 5. The reason for this distribution is that the bottom support rod 11 connected to the vertical seismic rod 8 is made of channel steel. Considering that the strength of the wing plate connected to the bottom support rod 11 is not enough, it is connected to the web of the bottom support rod 11, which makes the strength better; the seismic connector 6 on the other end of the two vertical seismic rods 8 is fixed to the horizontal wall 31 of the L-shaped groove 3 at the bottom of the original bridge 2 and the expanded bridge 4 by expansion bolts.

[0019] The two sides of the cable tray 5 are fixed to the bottom of the hanger 1 by limiting fasteners 51.

[0020] The vertical suspension rod 12, the bottom support rod 11, the transverse anti-seismic rod 7 and the vertical anti-seismic rod 8 are all made of channel steel.

[0021] The connection between the above-mentioned seismic connectors 6 and the horizontal seismic rods 7, vertical seismic rods 8, etc. to which they are connected is a hinged connection. This can reduce the impact on the cables during vibration between the original bridge 2 and the expanded bridge 4, thereby increasing the protection of the cables. The seismic connectors 6 and the expansion bolts are fixedly connected.

[0022] The installation steps of this utility model are:

[0023] Step 1: Determine the width of the two vertical hangers 12 based on calculations, and thus the corresponding expansion bolt positions. Also determine the fixed positions of the vertical and horizontal anti-seismic rods 8 and 7. Once all expansion bolt positions are determined, stake out the holes. Drill holes using an impact drill according to the staked-out positions, and then install the expansion bolts. Expansion bolts are selected based on calculations, and the quality of their construction is crucial. Accurate positioning and secure installation are essential to ensure the full seismic performance of the pipeline seismic protection device.

[0024] After step 2 and step 1 are completed, the base 10 and the seismic connector 6 are installed by bolts.

[0025] After step 3 and step 2 are completed, the vertical hanger 12, the vertical anti-seismic rod 8, and the horizontal anti-seismic rod 7 are installed by bolts.

[0026] After steps 4 and 3 are completed, the bottom support rod 11 is installed, and both ends of the bottom support rod 11 are fixed to the vertical suspension rod 12 through the corner reinforcement 9 .

[0027] After steps 5 and 4 are completed, install the vertical and horizontal anti-seismic rods 8 and 7. One end of the vertical anti-seismic rod 8 is fixed to the bottom of the bridge deck via the anti-seismic connector 6, and the other end is fixed to the bottom support rod 11 via the anti-seismic connector 6. The vertical anti-seismic rod 8 is installed at a 45° angle to the vertical and requires corrosion protection. One end of the horizontal anti-seismic rod 7 is fixed to the side of the bridge deck via the anti-seismic connector 6, and the other end is fixed to the bottom support rod 11 via the anti-seismic connector 6. The horizontal anti-seismic rod 7 requires corrosion protection.

[0028] After step 6 and step 5 are completed, the limiting fasteners 51 are installed. The two ends of the bottom support rod 11 are fixed to the vertical hanger 12 through the corner reinforcements 9. The size of the limiting fasteners 51 is determined according to the size of the cable tray 5. The limiting fasteners 51 are installed on the bottom support rod 11 by bolts.

[0029] After step 7 and step 6 are completed, the cable tray 5 is installed and fixed to the bottom support rod 11 by means of a limiting fastener 51. The specification of the cable tray 5 is selected according to the number of cables.

[0030] The above are only specific embodiments of the present application, but the scope of protection of this application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

Claims

1. A seismic protection device for pipelines used in bridge expansion, comprising a hanger (1), characterized in that: The hanger (1) is an inverted gate-shaped structure. One end of the hanger (1) is fixedly mounted on the transverse wall (31) of the L-shaped groove (3) at the bottom of the original bridge (2). The other end of the hanger (1) is fixedly mounted on the transverse wall (31) of the L-shaped groove (3) at the bottom of the expanded bridge (4). A cable tray (5) for placing cables is installed above the bottom of the hanger (1). Transverse anti-seismic rods (7) are connected and fixed on both sides of the hanger (1) through anti-seismic connectors (6). The transverse anti-seismic rods (7) are connected and fixed through anti-seismic connectors ( 6) is fixed on the vertical wall (32) of the L-shaped groove (3) at the bottom of the original bridge (2) and the expanded bridge (4), and two vertical seismic rods (8) are connected and fixed above the bottom of the hanger (1) through a seismic connector (6), and the vertical seismic rods (8) are fixed on the horizontal wall (31) of the L-shaped groove (3) at the bottom of the original bridge (2) and the expanded bridge (4) through the seismic connector (6), and the vertical seismic rods (8) are distributed at a 45-degree angle with the bottom of the hanger (1) in the vertical direction.

2. The seismic protection device for pipelines used in bridge expansion according to claim 1 is characterized in that: The hanger (1) comprises a bottom support rod (11) and two vertical hangers (12), one end of each of the two vertical hangers (12) being fixed to both ends of the bottom support rod (11) via angle reinforcements (9), and a base (10) being installed at the other end of each of the two vertical hangers (12), and the base (10) being fixed to the transverse wall (31) of the L-shaped groove (3) at the bottom of the original bridge (2) and the expanded bridge (4) via expansion bolts.

3. The seismic protection device for pipelines used in bridge expansion according to claim 1 is characterized in that: One end of the two transverse anti-seismic rods (7) is fixed to the bottom of both sides of the hanger (1) through the anti-seismic connector (6), and the anti-seismic connector (6) on the other end of the two transverse anti-seismic rods (7) is fixed to the vertical wall (32) of the L-shaped groove (3) at the bottom of the original bridge (2) and the expanded bridge (4) through expansion bolts, and the transverse anti-seismic rods (7) are distributed at an angle to the side of the hanger (1).

4. The seismic protection device for pipelines used in bridge expansion according to claim 1 is characterized in that: One end of the two vertical anti-seismic rods (8) is located on both sides of the cable bridge (5), and the anti-seismic connectors (6) on the other ends of the two vertical anti-seismic rods (8) are fixed to the transverse walls (31) of the L-shaped grooves (3) at the bottom of the original bridge (2) and the expanded bridge (4) through expansion bolts.

5. The seismic protection device for pipelines used in bridge expansion according to claim 1 is characterized in that: The two sides of the cable bridge (5) and the bottom of the hanger (1) are fixed via limiting fasteners (51).

6. The seismic protection device for pipelines used in bridge expansion according to claim 2 is characterized in that: The vertical suspension rod (12), the bottom support rod (11), the transverse anti-seismic rod (7) and the vertical anti-seismic rod (8) are all made of channel steel.

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