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CN-224227637-U - Bridge shock attenuation power consumption device

CN224227637UCN 224227637 UCN224227637 UCN 224227637UCN-224227637-U

Abstract

The utility model discloses a bridge damping and energy consumption device which comprises upright posts, tie beams, supports and girders, wherein two ends of each tie beam are fixedly connected with two upright posts, the tops of the upright posts are provided with the supports, the tops of the supports are provided with the girders, two girder bottom stop blocks are symmetrically arranged below the girders, two ends of the tops of each tie beam are symmetrically provided with tie beam wedge blocks, the girder bottom stop blocks are positioned between the two tie beam wedge blocks, viscous dampers are arranged between the tie beam wedge blocks and the immediately adjacent girder bottom stop blocks, friction dampers are arranged outside the viscous dampers, an upper driven plate of each friction damper is arranged at the bottom of the girders through an elastic unit, a lower driven plate is arranged at the tops of the girders through an elastic unit, guide edges are arranged at the periphery of each viscous damper, and guide grooves are formed in the end faces of the upper driven plate and the lower driven plate which are close to the viscous dampers.

Inventors

  • FU XINGRAN
  • Lei Tianzhuang
  • YANG LI
  • GAO HONGBO
  • ZHANG ZHIWEN
  • YANG YUNPING
  • HU CHENGZE
  • SONG ZHONGYANG
  • ZENG YANG
  • XU ZHE
  • WAN ZHAO

Assignees

  • 武汉中交试验检测加固工程有限责任公司

Dates

Publication Date
20260512
Application Date
20250429

Claims (10)

  1. 1. The utility model provides a bridge shock attenuation power consumption device, includes stand (12), tie beam (13), support (14) and girder (11), two stand (12) of both ends fixed connection of tie beam (13), the top mount support (14) of stand (12), girder (11) are installed at the top of support (14), a serial communication port, two roof beam bottom dogs (16) are installed to the below symmetry of girder (11), tie beam wedge (15) are installed at the top both ends symmetry of tie beam (13), roof beam bottom dogs (16) are located between two tie beam wedge (15); A viscous damper is arranged between the tie beam wedge block (15) and the beam bottom stop block (16) which is close to the tie beam wedge block, a friction damper is arranged outside the viscous damper, and the friction damper comprises an elastic unit, an upper driven plate and a lower driven plate; The upper driven plate is arranged at the bottom of the main beam (11) through an elastic unit, the lower driven plate is arranged at the top of the tie beam (13) through an elastic unit, the periphery of the viscous damper is provided with a guide edge, the end faces of the upper driven plate and the lower driven plate, which are close to the viscous damper, are provided with guide grooves, and the guide grooves are matched with the guide edges; When the main beams (11) and the upright columns (12) bear wind load or earthquake action, the viscous damper or the friction damper absorbs or dissipates bridge transverse vibration energy.
  2. 2. The bridge vibration damping and energy consumption device according to claim 1, wherein the viscous damper comprises a cylinder sleeve (17) and a piston rod (18), one end of the cylinder sleeve (17) is connected to a beam wedge (15), one end of the piston rod (18) is connected to a beam bottom stop block (16), the other end of the piston rod (18) is arranged in the cylinder sleeve (17) through a piston, damping media are arranged in the cylinder sleeve (17), media flow holes are formed in the piston, and guiding edges are arranged on the peripheries of the cylinder sleeve (17) and the piston rod (18).
  3. 3. The bridge shock absorption and energy consumption device according to claim 2, wherein the upper driven plate comprises a first upper driven plate (22) and a second upper driven plate (24), the lower driven plate comprises a first lower driven plate (23) and a second lower driven plate (25), the top of the first upper driven plate (22) is fixedly arranged at the bottom of the main beam (11) through an elastic unit, the bottom of the first lower driven plate (23) is fixedly arranged at the top of the tie beam (13) through an elastic unit, and guide grooves on the first upper driven plate (22) and the first lower driven plate (23) are matched with first guide edges (19) on the periphery of the cylinder sleeve (17); The top of the second upper driven plate (24) is fixedly arranged at the bottom of the main beam (11) through an elastic unit, the bottom of the second lower driven plate (25) is fixedly arranged at the top of the tie beam (13) through an elastic unit, and the second upper driven plate (24) and the second lower driven plate (25) are matched with the second guide edges (20) on the periphery of the piston rod (18) through guide grooves.
  4. 4. The bridge damping and energy-consuming device according to claim 2, wherein the middle part of the guiding rib is provided with a pushing protrusion (31), two sides of the pushing protrusion (31) are provided with a plurality of pushing inclined planes (29), the middle part of the guiding groove is provided with a pushing groove (30), two sides of the pushing groove (30) are provided with a plurality of pushing inclined slots (28), the pushing protrusion (31) is matched with the pushing groove (30), and the pushing inclined planes (29) are matched with the pushing inclined slots (28).
  5. 5. A bridge shock absorbing and energy dissipating device according to claim 3, wherein the cylinder sleeve (17) is connected with the tie beam wedge (15) through a hinge seat, and the piston rod (18) is connected with the beam bottom stop block (16) through a hinge seat.
  6. 6. The bridge shock absorption and energy consumption device according to claim 2, wherein damping medium in the cylinder sleeve (17) is silicone oil, and the number of medium flow holes is 3-6 and is uniformly distributed in a ring shape.
  7. 7. The bridge vibration damping and energy dissipating device according to claim 4, wherein the angle of inclination of the ejection inclined plane (29) is 30-55 degrees, and the angle of inclination of the ejection chute (28) is adapted to the ejection inclined plane (29).
  8. 8. A bridge shock absorbing and dissipating device according to claim 3, wherein the contact surfaces of the first upper driven plate (22), the second upper driven plate (24), the first lower driven plate (23) and the second lower driven plate (25) are all provided with wear-resistant layers, and the wear-resistant layers are made of polytetrafluoroethylene materials.
  9. 9. A bridge shock absorbing and dissipating device according to claim 3, wherein the elastic unit comprises a fixing plate (26) and a plurality of springs (27), one end of each spring (27) is fixedly connected with the fixing plate (26), and the other end of each spring (27) is fixedly connected with the upper driven plate or the lower driven plate.
  10. 10. The bridge vibration damping and energy-consuming device according to claim 9, wherein the springs (27) are helical compression springs, and 4-8 springs are uniformly arranged on each fixing plate (26).

Description

Bridge shock attenuation power consumption device Technical Field The utility model relates to the field of bridge vibration resistance and shock absorption, in particular to a bridge shock absorption energy consumption device. Background In China, a plate-type rubber support is mostly adopted for a medium-small span continuous beam bridge, and for the bridge, the support can be displaced greatly under the action of an earthquake, and in order to prevent the transverse beam falling, anti-seismic stop blocks are usually arranged at two ends of a pier and a bent cap. Although the stop block can reduce the probability of falling beams, if the stop block is improperly arranged, collision between the stop block and the main beam can not only cause damage to the main beam, but also greatly increase the internal force of the lower structure. In recent years, the frequency of the earthquake disaster is increased, and the adverse effect of the earthquake disaster on us is more serious with the increase of population density. The bridge beam falling risk is presented in the aspect of the bridge, particularly, the bridge beam falling, displacement and continuous bridge deck damage in the earthquake are serious, and the bridge beam falling risk is presented in serious conditions, so that the driving safety of vehicles on the bridge is directly threatened. The utility model has the advantages that the bridge shock absorption stop block structure for preventing the transverse beam falling comprises a steel stop block, a shock absorption plate and a bridge support, wherein the top of the steel stop block is connected with a box beam of a bridge, the shock absorption plate is fixed on the side surface of the lower part of the steel baffle, the bridge support comprises a support upper base plate, a support body and a support lower padding stone, and the shock absorption plate corresponds to the support lower padding stone. In the prior art, a rubber cushion block is arranged between a main beam and a stop block, however, the buffer effect and the energy consumption of the additionally arranged rubber cushion block are weaker, when the main beam transversely displaces, the impact force is larger, one side of the stop block is easy to crack, the shearing damage occurs, and the potential safety hazard exists in a bridge. Disclosure of utility model Aiming at the defects of the prior art, the utility model provides the damping and energy-consuming device for the bridge, which reduces the acting force of the transverse displacement of the bridge girder, consumes the energy of an earthquake, avoids the direct collision between the bottom stop block of the bridge girder and the tie-beam wedge block of the bridge girder and ensures the safety of the bridge by arranging the viscous damper and the friction damper between the girder and the tie-beam. In order to achieve the above purpose, the present utility model adopts the following technical scheme: The damping and energy-consuming device for the bridge comprises upright posts, tie beams, supports and main beams, wherein two ends of each tie beam are fixedly connected with two upright posts, the supports are arranged at the tops of the upright posts, the main beams are arranged at the tops of the supports, two beam bottom stop blocks are symmetrically arranged below the main beams, tie beam wedge blocks are symmetrically arranged at the two ends of the tops of each tie beam, each beam bottom stop block is located between two tie beam wedge blocks, a viscous damper is arranged between each tie beam wedge block and each adjacent beam bottom stop block, a friction damper is arranged outside each viscous damper and comprises an elastic unit, an upper driven plate and a lower driven plate, the upper driven plates are arranged at the bottoms of the main beams through the elastic units, the lower driven plates are arranged at the tops of the tie beams through the elastic units, guide edges are arranged on the peripheries of the viscous dampers, guide grooves are formed in the end faces of the upper driven plates and the lower driven plates close to the viscous dampers, the guide grooves are matched with the guide edges, and when the main beams and the upright posts bear wind loads or earthquake loads or the vibration loads, the viscous dampers or the transverse vibration energy can be absorbed or dissipated by the viscous dampers. Preferably, the viscous damper comprises a cylinder sleeve and a piston rod, one end of the cylinder sleeve is connected to the tie-beam wedge, one end of the piston rod is connected to the beam bottom stop block, the other end of the piston rod is installed in the cylinder sleeve through a piston, damping media are arranged in the cylinder sleeve, media flow holes are formed in the piston, and guide ribs are arranged on the peripheries of the cylinder sleeve and the piston rod. The upper driven plate comprises a first upper driven plate and a second upper drive