Two-way anti-seismic connection damping device for beam bridge

Abstract

The invention belongs to the technical field of bridge damping, and particularly relates to a bridge two-way anti-seismic connection damping device which comprises a plurality of main beams. The bottom of the main beam is fixedly connected with a pier; a pair of piers is arranged at the bottom of the main beam; a damping assembly is arranged at the top of the main beam; the top of the main beam is connected with a bridge plate through a damping assembly. A plurality of groups of bridge plates are arranged at the top of the main beam; the outer side wall of the bridge pier is fixedly connected with a first fixing ring; a damping rod is hinged to the bottom of the first fixing ring; a plurality of groups of damping rods are arranged at the bottom of the first fixing ring and are uniformly distributed at the bottoms of the damping rods; according to the step, through the arrangement of the first fixing ring, the damping rod and the second fixing ring, the damping rod restrains shaking of the bridge pier, the situation that external vibration is transmitted to the bridge to cause shaking of the bridge plate and the main beam is reduced, the situation that the bridge pier is damaged due to the fact that the bridge pier swinging shearing force is increased is reduced, and the shock resistance of the bridge is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of bridge shock absorption, in particular to a bidirectional earthquake-resistant connection shock absorption device for a beam bridge. Background Art

[0002] A beam bridge is a bridge with beams as the main load-bearing components. It is mainly composed of two-box supporting components. It has the advantages of high load transfer efficiency, strong bearing capacity, short construction period and low maintenance cost.

[0003] The bidirectional seismic resistance of a beam bridge means that the bridge can resist seismic forces from two directions at the same time under the action of an earthquake, thereby maintaining the stability and integrity of the structure. When designing a bidirectional seismic resistant beam bridge, the principles that need to be considered include structural symmetry, overall design, and multiple seismic defense lines. Commonly used bidirectional seismic resistance measures include the setting of bidirectional seismic bearings, the design of piers, the application of buffer materials, and energy-absorbing shock reduction methods.

[0004] In the existing bidirectional seismic resistance technology of beam bridges, the load above the pier is large. When the external vibration is transmitted to 1 pier, the shear force on the pier increases, which makes it easy for the pier to be damaged.

[0005] To this end, the present invention provides a bidirectional earthquake-resistant connection damping device for a beam bridge. Summary of the invention

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The technical solution adopted by the present invention to solve its technical problems is: a bidirectional seismic connection damping device for a beam bridge described in the present invention comprises a plurality of main beams; a pier is fixedly connected to the bottom of the main beam; a pair of the piers are arranged at the bottom of the main beam; a damping assembly is arranged at the top of the main beam; a bridge deck is connected to the top of the main beam through the damping assembly; a plurality of bridge decks are arranged at the top of the main beam; a first fixing ring is fixedly connected to the outer wall of the pier; a damping rod is hinged at the bottom of the first fixing ring; a plurality of damping rods are arranged at the bottom of the first fixing ring and are evenly distributed at the bottom of the damping rod; a second fixing ring is hinged at the ends of the plurality of damping rods away from the first fixing ring; a buffer assembly is arranged in the middle of the pier; in this step, through the arrangement of the first fixing ring, the damping rod and the second fixing ring, the damping rod suppresses the shaking of the pier, reduces the situation that the external vibration is transmitted to the bridge to cause the bridge deck and the main beam to shake, reduces the situation that the pier is damaged due to the increased shear force of the pier swing, and improves the seismic resistance of the bridge.

[0008] Preferably, the buffer assembly includes a convex connecting block, a first damping spring and a concave connecting block; the bridge pier is arranged in sections; the convex connecting block is fixedly connected to the end of the pier away from the main beam; one end of the first damping spring is fixedly connected to the bottom end of the convex connecting block; the convex connecting block slides inside the concave connecting block; the concave connecting block is fixedly connected to the end of the pier away from the convex connecting block; this step is achieved by arranging the convex connecting block, the first damping spring and the concave connecting block, so that when subjected to longitudinal vibration, the first damping spring will suppress the vibration, reduce the situation where the bridge pier causes vibration and improve the stability of the main beam, bridge deck and pier during operation.

[0009] Preferably, the shock absorbing assembly includes a first fixing plate, a rubber airbag, a second fixing plate and a second damping spring; the first fixing plate is fixedly connected to the top of the main beam; the first fixing plate is arranged in multiple groups on the top of the main beam; the rubber airbag is fixedly connected to the top of the first fixing plate; the bottom of the second fixing plate is fixedly connected to the top of the rubber airbag away from the first fixing plate; the top of the second fixing plate is fixedly connected to the bottom of the bridge deck; the second damping spring is fixedly connected to the side walls of a pair of main beams close to each other; in this step, through the arrangement of the first fixing plate, the rubber airbag, the second fixing plate and the second damping spring, the rubber airbag suppresses the bouncing of the bridge deck on the top of the main beam, the second fixing plate cushions the bridge deck, reduces the damage caused by collision between adjacent bridge decks, and improves the stability of the bridge when it is subjected to vibration.

[0010] Preferably, the convex connecting block is fixedly connected to a rubber pad at the bottom away from the first damping spring; the rubber pads are arranged in multiple groups at the bottom of the convex connecting block; the bottom of the rubber pad is fixedly connected to the top of the concave connecting block; in this step, through the arrangement of the rubber pads, the rubber pads buffer the relative movement of the convex connecting block and the first damping spring, increase the stability of the device when it is subjected to vibration, and reduce the collision or abnormal wear of the convex connecting block and the concave connecting block caused by vibration.

[0011] Preferably, a rubber rod is fixedly connected to the inner side wall of the second fixing ring; the other end of the rubber rod is fixedly connected to the outer side wall of the pier; a plurality of groups of rubber rods are arranged on the inner side wall of the second fixing ring and are evenly distributed on the inner side wall of the second fixing ring; in this step, the rubber rods are arranged so that the relative movement between the pier and the rubber rods is buffered, thereby increasing the stability of the pier when supporting.

[0012] Preferably, a rubber rod is fixedly connected to the inner side wall of the second fixing ring; the other end of the rubber rod is fixedly connected to the outer side wall of the pier; a plurality of groups of rubber rods are arranged on the inner side wall of the second fixing ring and are evenly distributed on the inner side wall of the second fixing ring; in this step, the rubber rods are arranged so that the relative movement between the pier and the rubber rods is buffered, thereby increasing the stability of the pier when supporting.

[0013] Preferably, a rubber ring is fixedly connected to the inner side wall of the first fixing ring; in this step, the contact area between the pier and the first fixing ring is increased by providing the rubber ring, thereby improving the stability of the first fixing ring fixed to the side wall of the pier.

[0014] Preferably, the convex connecting block and the concave connecting block are made of metal; in this step, by setting the convex connecting block and the concave connecting block to be made of metal, the structural strength of the convex connecting block and the concave connecting block is improved, and the stability of the device during use is increased.

[0015] The beneficial effects of the present invention are as follows: 1. The bidirectional seismic connection damping device for a beam bridge described in the present invention, through the arrangement of a first fixed ring, a damping rod and a second fixed ring, the damping rod suppresses the shaking of the bridge piers, reduces the transmission of external vibrations to the bridge causing the shaking of the bridge deck and the main beam, reduces the increase in the shear force of the pier swinging causing the pier to be damaged, and improves the seismic resistance of the bridge.

[0016] 2. The bidirectional seismic-resistant connection and shock-absorbing device for a beam bridge described in the present invention, through the arrangement of a convex connection block, a first damping spring and a concave connection block, when subjected to longitudinal vibration, the first damping spring will suppress the vibration, thereby reducing the vibration-induced bouncing of the bridge piers and improving the stability of the main beam, bridge deck and bridge piers during operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described below in conjunction with the accompanying drawings.

[0018] Figure 1 is a stereogram of the present invention; Figure 2 It is a schematic diagram of the structure of the damping rod and the bridge pier in the present invention; Figure 3 It is a schematic diagram of the structure of the concave connecting block and the convex connecting block in the present invention; Figure 4 It is a schematic diagram of the structure of the rubber airbag and the main beam in the present invention.

[0019] In the figure: 1. main beam; 11. bridge deck; 12. bridge pier; 13. first fixing ring; 14. damping rod; 15. second fixing ring; 2. convex connecting block; 21. first damping spring; 22. concave connecting block; 3. first fixing plate; 31. rubber airbag; 32. second fixing plate; 33. second damping spring; 4. rubber pad; 5. rubber rod; 6. elastic plate; 7. rubber ring. DETAILED DESCRIPTION

[0020] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0021] like Figure 1 and Figure 2 As shown, a bidirectional seismic-resistant connection and damping device for a beam bridge described in an embodiment of the present invention comprises a plurality of main beams 1; a pier 12 is fixedly connected to the bottom of the main beam 1; a pair of the piers 12 are arranged at the bottom of the main beam 1; a damping assembly is arranged at the top of the main beam 1; a bridge deck 11 is connected to the top of the main beam 1 through the damping assembly; a plurality of bridge decks 11 are arranged at the top of the main beam 1; a first fixing ring 13 is fixedly connected to the outer wall of the pier 12; a damping rod 14 is hinged to the bottom of the first fixing ring 13; a plurality of groups of the damping rods 14 are arranged at the bottom of the first fixing ring 13 and are evenly distributed at the bottom of the damping rods 14; a second fixing ring 15 is hinged to the ends of the plurality of groups of damping rods 14 away from the first fixing ring 13; A buffer component is provided in the middle of the pier 12; during operation, the second fixing ring 15 is fixed to the ground, and the pier 12 is buried in the ground. When the beam bridge is subjected to vibration transmitted from the outside, the main beam 1 and the bridge deck 11 shake on the top of the pier 12, driving the pier 12 to swing, and the damping rod 14 suppresses the swing of the pier 12, thereby weakening the vibration transmitted to the pier 12 by the main beam 1 and the bridge deck 11; in this step, the damping rod 14 suppresses the swing of the pier 12 through the arrangement of the first fixing ring 13, the damping rod 14 and the second fixing ring 15, thereby reducing the situation in which the external vibration is transmitted to the bridge and causes the bridge deck 11 and the main beam 1 to shake, and reducing the situation in which the pier 12 is damaged due to the increased shear force of the swinging of the pier 12, thereby improving the seismic resistance of the bridge.

[0022] like Figure 1 and Figure 3 As shown, the buffer assembly includes a convex connection block 2, a first damping spring 21 and a concave connection block 22; the pier 12 is arranged in sections; the convex connection block 2 is fixedly connected to the end of the pier 12 away from the main beam 1; one end of the first damping spring 21 is fixedly connected to the bottom end of the convex connection block 2; the convex connection block 2 slides inside the concave connection block 22; the concave connection block 22 is fixedly connected to the end of the pier 12 away from the convex connection block 2; during operation, when the bridge is subjected to longitudinal load, When the bridge deck 11 and the main beam 1 vibrate, the bridge pier 12 drives the convex connecting block 2 to slide in the concave connecting block 22, and the first damping spring 21 suppresses the jumping of the convex connecting block 2; in this step, through the setting of the convex connecting block 2, the first damping spring 21 and the concave connecting block 22, when subjected to longitudinal vibration, the first damping spring 21 suppresses the vibration, reduces the jumping of the bridge pier 12 caused by the vibration, and improves the stability of the main beam 1, the bridge deck 11 and the bridge pier 12 during operation.

[0023] like Figure 2 and Figure 4As shown, the shock absorbing assembly includes a first fixing plate 3, a rubber airbag 31, a second fixing plate 32 and a second damping spring 33; the first fixing plate 3 is fixedly connected to the top of the main beam 1; the first fixing plate 3 is arranged in multiple groups on the top of the main beam 1; the rubber airbag 31 is fixedly connected to the top of the first fixing plate 3; the bottom of the second fixing plate 32 is fixedly connected to the top of the rubber airbag 31 away from the first fixing plate 3; the top of the second fixing plate 32 is fixedly connected to the bottom of the bridge plate 11; the second damping spring 33 is fixedly connected to the side walls of a pair of main beams 1 close to each other; during operation, the bridge When the bridge deck 11 is vibrated at the top of the main beam 1, the rubber airbag 31 suppresses the bouncing of the bridge deck 11. When adjacent bridge decks 11 are laterally offset, the second damping spring 33 plays a buffering role to reduce the collision between the bridge decks 11. This step is achieved by setting the first fixed plate 3, the rubber airbag 31, the second fixed plate 32 and the second damping spring 33. The rubber airbag 31 suppresses the bouncing of the bridge deck 11 at the top of the main beam 1, and the second fixed plate 32 buffers the bridge deck 11, reducing the damage caused by collision between adjacent bridge decks 11, thereby improving the stability of the bridge when it is vibrated.

[0024] like Figure 3 As shown, the bottom of the convex connecting block 2 away from the first damping spring 21 is fixedly connected with a rubber pad 4; the rubber pad 4 is arranged in multiple groups at the bottom of the convex connecting block 2; the bottom of the rubber pad 4 is fixedly connected to the top of the concave connecting block 22; during operation, when the convex connecting block 2 and the concave connecting block 22 move relative to each other or the pier 12 swings, the rubber pad 4 plays a restraining role and buffers the convex connecting block 2 and the concave connecting block 22; in this step, through the arrangement of the rubber pad 4, the rubber pad 4 buffers the relative movement of the convex connecting block 2 and the first damping spring 21, increases the stability of the device when it is subjected to vibration, and reduces the collision or abnormal wear of the convex connecting block 2 and the concave connecting block 22 caused by vibration.

[0025] like Figure 2 As shown, a rubber rod 5 is fixedly connected to the inner wall of the second fixing ring 15; the other end of the rubber rod 5 is fixedly connected to the outer wall of the pier 12; a plurality of groups of rubber rods 5 are arranged on the inner wall of the second fixing ring 15, and are evenly distributed on the inner wall of the second fixing ring 15; during operation, when the pier 12 is subjected to external vibration, the pier 12 and the second fixing ring 15 move relative to each other, and the rubber rod 5 plays a buffering role; in this step, the rubber rod 5 is arranged so that the rubber rod 5 buffers the relative movement between the pier 12 and the rubber rod 5, thereby increasing the stability of the pier 12 when supporting.

[0026] like Figure 4As shown, the inner side walls of a pair of main beams 1 close to each other are commonly fixedly connected with an elastic plate 6; during operation, the elastic plate 6 is connected to the side walls of a pair of bridge plates 11 close to each other, connecting the pair of bridge plates 11 and shielding the second damping spring 33 between the pair of bridge plates 11; in this step, the elastic plate 6 is set, and the elastic plate 6 connects the pair of bridge plates 11 together, reducing dust or foreign matter from entering the gap between the bridge plates 11, thereby causing abnormal wear of the second damping spring 33.

[0027] like Figure 2 As shown, a rubber ring 7 is fixedly connected to the inner wall of the first fixing ring 13; during operation, the rubber ring 7 is arranged between the pier 12 and the first fixing ring 13 to increase the contact area between the pier 12 and the first fixing ring 13; in this step, the contact area between the pier 12 and the first fixing ring 13 is increased by setting the rubber ring 7, thereby improving the stability of the first fixing ring 13 fixed to the side wall of the pier 12.

[0028] like Figure 3 As shown, the convex connecting block 2 and the concave connecting block 22 are made of metal; during operation, the setting of the metal material increases the structural strength of the convex connecting block 2 and the concave connecting block 22; this step improves the structural strength of the convex connecting block 2 and the concave connecting block 22 by setting the convex connecting block 2 and the concave connecting block 22 to be made of metal, thereby increasing the stability of the device during use.

[0029] During operation, the second fixing ring 15 is fixed on the ground, and the pier 12 is buried in the ground. When the beam bridge is subjected to vibration transmitted from the outside, the main beam 1 and the bridge deck 11 shake on the top of the pier 12, driving the pier 12 to swing, and the damping rod 14 suppresses the swing of the pier 12, weakening the vibration transmitted to the pier 12 by the main beam 1 and the bridge deck 11; when the bridge is subjected to longitudinal vibration, the bridge deck 11 and the main beam 1 drive the pier 12 to bounce, and the pier 12 drives the convex connecting block 2 to slide in the concave connecting block 22, and the first damping spring 21 suppresses the bouncing of the convex connecting block 2; when the bridge deck 11 is vibrated at the top of the main beam 1, the rubber airbag 31 suppresses the bouncing of the bridge deck 11, and when the adjacent bridge decks 11 are laterally offset, the second damping spring 33 plays a buffering role. Reduce the collision between the bridge plates 11; when the convex connecting block 2 and the concave connecting block 22 move relative to each other or the bridge pier 12 swings, the rubber pad 4 plays a suppressing role and cushions the convex connecting block 2 and the concave connecting block 22; when the bridge pier 12 is subjected to external vibration, the bridge pier 12 and the second fixing ring 15 move relative to each other, and the rubber rod 5 plays a cushioning role; the elastic plate 6 is connected to the side walls of a pair of bridge plates 11 that are close to each other, connecting the pair of bridge plates 11 and shielding the second damping spring 33 between the pair of bridge plates 11; the rubber ring 7 is arranged between the bridge pier 12 and the first fixing ring 13 to increase the contact area between the bridge pier 12 and the first fixing ring 13; the setting of the metal material increases the structural strength of the convex connecting block 2 and the concave connecting block 22.

[0030] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A bidirectional seismic connection and damping device for a beam bridge, comprising a plurality of main beams (1); characterized in that: The bottom of the main beam (1) is fixedly connected to a bridge pier (12); a pair of the bridge piers (12) are arranged at the bottom of the main beam (1); a shock absorbing assembly is arranged at the top of the main beam (1); the top of the main beam (1) is connected to a bridge plate (11) through the shock absorbing assembly; a plurality of bridge plates (11) are arranged at the top of the main beam (1); an outer wall of the pier (12) is fixedly connected to a first fixing ring (13); a damping rod (14) is hingedly connected to the bottom of the first fixing ring (13); a plurality of groups of the damping rods (14) are arranged at the bottom of the first fixing ring (13) and are evenly distributed at the bottom of the damping rods (14); ends of the plurality of groups of the damping rods (14) away from the first fixing ring (13) are hingedly connected to a second fixing ring (15); a buffer assembly is arranged in the middle of the pier (12).

2. The bidirectional seismic connection damping device for beam bridges according to claim 1, characterized in that: The buffer assembly comprises a convex connection block (2), a first damping spring (21) and a concave connection block (22); the bridge pier (12) is arranged in sections; the convex connection block (2) is fixedly connected to the end of the bridge pier (12) away from the main beam (1); one end of the first damping spring (21) is fixedly connected to the bottom end of the convex connection block (2); the convex connection block (2) slides inside the concave connection block (22); and the concave connection block (22) is fixedly connected to the end of the bridge pier (12) away from the convex connection block (2).

3. The bidirectional seismic connection and damping device for beam bridges according to claim 1, characterized in that: The shock absorbing assembly comprises a first fixing plate (3), a rubber airbag (31), a second fixing plate (32) and a second damping spring (33); the first fixing plate (3) is fixedly connected to the top of the main beam (1); a plurality of the first fixing plates (3) are arranged on the top of the main beam (1); the rubber airbag (31) is fixedly connected to the top of the first fixing plate (3); the bottom of the second fixing plate (32) is fixedly connected to the top of the rubber airbag (31) away from the first fixing plate (3); the top of the second fixing plate (32) is fixedly connected to the bottom of the bridge plate (11); and the second damping spring (33) is fixedly connected to the side walls of a pair of main beams (1) close to each other.

4. The bidirectional seismic connection and damping device for beam bridges according to claim 2, characterized in that: A rubber pad (4) is fixedly connected to the bottom of the convex connection block (2) away from the first damping spring (21); multiple groups of the rubber pads (4) are arranged at the bottom of the convex connection block (2); and the bottom of the rubber pad (4) is fixedly connected to the top of the concave connection block (22).

5. The bidirectional seismic connection and damping device for beam bridges according to claim 1, characterized in that: The inner wall of the second fixing ring (15) is fixedly connected to a rubber rod (5); the other end of the rubber rod (5) is fixedly connected to the outer wall of the pier (12); a plurality of groups of the rubber rods (5) are arranged on the inner wall of the second fixing ring (15) and are evenly distributed on the inner wall of the second fixing ring (15).

6. The bidirectional seismic connection and damping device for beam bridges according to claim 1, characterized in that: An elastic plate (6) is fixedly connected to inner side walls of a pair of main beams (1) that are close to each other.

7. The bidirectional seismic connection and damping device for beam bridges according to claim 1, characterized in that: A rubber ring (7) is fixedly connected to the inner side wall of the first fixing ring (13).

8. The bidirectional seismic connection and damping device for beam bridges according to claim 1, characterized in that: A rubber ring (7) is fixedly connected to the inner side wall of the first fixing ring (13).

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