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CN-224213569-U - Broadband control vibration dual-control tuning liquid damper device with failure protection mechanism

CN224213569UCN 224213569 UCN224213569 UCN 224213569UCN-224213569-U

Abstract

The utility model relates to a broadband control vibration dual-control tuning liquid damper device with a failure protection mechanism, which comprises a dual-curvature variable friction pendulum supporting unit, a supporting steel platform, a tuning liquid damper body and collision buffers, wherein the dual-curvature variable friction pendulum supporting unit is arranged above a structure to be subjected to vibration/vibration control, the supporting steel platform is arranged above the dual-curvature variable friction pendulum supporting unit, the tuning liquid damper body is arranged above the supporting steel platform and is used for controlling wind vibration response of the structure, and the collision buffers are arranged at two ends of the side face of the supporting steel platform and are used for buffering and limiting under the working condition of very rare earthquakes and large displacement. Compared with the prior art, the broadband control vibration dual-control tuning liquid damper device can be used for wind vibration control and has a good earthquake reduction effect, and can avoid system failure caused by overlarge displacement of the damper when encountering rare earthquakes or even rare earthquakes.

Inventors

  • YANG KAI
  • LIU XINQIAO
  • ZHENG CHAOFAN
  • DING SUNWEI

Assignees

  • 上海材料研究所有限公司

Dates

Publication Date
20260508
Application Date
20250430

Claims (10)

  1. 1. A broadband controlled vibration dual-control tuned liquid damper device with a fail-safe mechanism, comprising: The double-curvature variable friction pendulum supporting unit (2) is arranged above a structure to be subjected to vibration/shock control; a supporting steel platform (3) which is arranged above the double-curvature variable friction pendulum supporting unit (2); A tuning liquid damper body (4) arranged above the supporting steel platform (3), wherein the tuning liquid damper body (4) is used for controlling structural wind vibration response; The collision buffers (5) are arranged at two ends of the side face of the supporting steel platform (3), and the collision buffers (5) are used for buffering and limiting under the working condition of very rare earthquakes and large displacement.
  2. 2. The broadband control vibration dual control tuning liquid damper device with the failure protection mechanism according to claim 1, wherein the tuning liquid damper body (4) comprises a water tank (41) and a grid (42), a plurality of grids (42) are arranged inside the water tank (41), the grids (42) and the water tank (41) are horizontally or vertically arranged in cross section, and the grids (42) are used for enhancing energy consumption.
  3. 3. The broadband control vibration dual control tuning liquid damper device with the failure protection mechanism according to claim 2, wherein the tank body structure of the water tank (41) comprises a cuboid and a cylinder, and the material of the water tank (41) is selected from concrete or stainless steel; the material of the grid (42) is stainless steel.
  4. 4. The broadband control vibration double control tuning liquid damper device with the failure protection mechanism according to claim 1, wherein a base (1) is arranged below the double-curvature variable friction pendulum supporting unit (2), and the base (1) is fixedly arranged on a structure needing vibration/vibration control.
  5. 5. The broadband controlled vibration dual control tuned liquid damper apparatus with fail safe mechanism according to claim 4, wherein said dual curvature variable friction pendulum support unit (2) comprises an upper seat plate (22), a spherical cap body (25), a lower seat plate (28), an upper intermediate plate (29) and a lower intermediate plate (210), The top end of the upper seat plate (22) is fixedly connected with the supporting steel platform (3), the bottom end of the upper seat plate (22) is slidably connected with the top end of the upper middle plate (29), The bottom end of the lower seat board (28) is fixedly connected with the base (1), the top end of the lower seat board (28) is slidably connected with the bottom end of the lower middle board (210), A spherical crown body (25) is arranged between the upper middle plate (29) and the lower middle plate (210), and the upper end and the lower end of the spherical crown body (25) are respectively connected with the upper middle plate (29) and the lower middle plate (210) in a sliding manner.
  6. 6. The broadband controlled vibration dual-control tuned liquid damper device with the failure protection mechanism according to claim 5, wherein a second-order upper sliding surface (23) is arranged at the bottom end of the upper seat plate (22), the second-order upper sliding surface (23) is in sliding connection with the top end of the upper middle plate (29), The bottom end of the upper middle plate (29) is provided with a first-stage upper sliding surface (24), the first-stage upper sliding surface (24) is in sliding connection with the top end of the spherical crown body (25), The top end of the lower seat plate (28) is provided with a second-order lower sliding surface (27), the second-order lower sliding surface (27) is in sliding connection with the bottom end of the lower middle plate (210), The top end of the lower middle plate (210) is provided with a first-stage lower sliding surface (26), and the first-stage lower sliding surface (26) is in sliding connection with the bottom end of the spherical crown body (25).
  7. 7. The broadband controlled vibration dual-control tuned liquid damper device with the failure protection mechanism according to claim 5, wherein the upper seat plate (22) is fixedly connected with the supporting steel platform (3) through an anchoring assembly (21); The lower seat board (28) is fixedly connected with the base (1) through an anchoring assembly (21).
  8. 8. The broadband controlled vibration dual-control tuned liquid damper apparatus with fail-safe mechanism according to claim 5, wherein limit protrusions are provided at the left and right edges of the upper seat plate (22), the lower seat plate (28), the upper middle plate (29) and the lower middle plate (210).
  9. 9. The broadband control vibration double-control tuning liquid damper device with the failure protection mechanism according to claim 1, wherein structural reaction walls (6) are arranged around the supporting steel platform (3), and the collision buffer (5) is arranged between the supporting steel platform (3) and the structural reaction walls (6).
  10. 10. The broadband controlled vibration dual-control tuned liquid damper device with the fail-safe mechanism according to claim 1, wherein the crash cushion (5) is a high damping rubber support or a hydraulic cushion system.

Description

Broadband control vibration dual-control tuning liquid damper device with failure protection mechanism Technical Field The utility model relates to the technical field of wind and earthquake vibration control of civil engineering construction/structures, in particular to a broadband control earthquake vibration double-control tuned liquid damper device with a failure protection mechanism. Background The comfort problem of the existing high-rise and high-rise building (structure) under wind vibration caused by the change of climate and surrounding environment is increasingly outstanding. High rise or towering buildings will vibrate under wind load and excessive vibration acceleration will cause discomfort or panic to the person living or working therein. Therefore, improving the comfort of existing high-rise, high-rise buildings is an effective means of ensuring the quality of the building. In addition, as the awareness of seismic vibrations continues to increase, high-rise buildings respond and become more pronounced with long-period, long-lasting seismic excitation than multi-story buildings. It is necessary to promote the safety of existing high-rise, high-rise building (construction) structures against this type of earthquake excitation without going into the home and affecting use. The tuned mass damper with a certain mass ratio is additionally arranged on the top layer of the house, so that the purposes of wind vibration and earthquake double control can be achieved at the same time, the house is not required to be subjected to house-entry reinforcement, normal use of the house is not affected, and the method has a good application prospect. Tuning liquid damper belongs to one of tuning mass dampers which are more commonly used in engineering. The vibration damping device aims at the existing high-rise and high-rise building (structure), can realize the vibration damping target by properly reforming the fire-fighting water tank and the living water tank, and has the advantages of low cost, small engineering operation surface, simple maintenance and the like. However, the existing tuned liquid damper is commonly used for wind vibration control, the control efficiency under the earthquake is low, and the effective mass utilization rate of the water tank is relatively low. Chinese patent CN219992781U discloses a multi-cavity tuning liquid damper, which comprises a water tank body, wherein water is filled in the water tank body, N parallel cavity partition boards are arranged in the water tank body, N is a natural number greater than or equal to 1, the cavity partition boards divide the inner space of the water tank body into n+1 cavities along the orthogonal direction of water shaking, the water in each cavity is completely separated by the cavity partition boards, the water depths of the water in the cavities are different, damping enhancing devices are respectively arranged in each cavity, and the damping enhancing devices are used for blocking the shaking water. The liquid mass in the tank can be divided into a pulse mass and a convection mass, and the tuned liquid damper described in this patent mainly uses the convection mass thereof, so that the effective mass utilization of the tank is relatively low. Disclosure of utility model The utility model aims to provide a broadband control vibration double-control tuning liquid damper device with a failure protection mechanism. The broadband control vibration double-control tuned liquid damper device can be used for wind vibration control and has a good earthquake reduction effect, and can avoid system failure caused by overlarge displacement of the damper when rare earthquakes are encountered. The aim of the utility model can be achieved by the following technical scheme: A broadband controlled vibration dual-control tuned liquid damper device with fail-safe mechanism, comprising: the double-curvature variable friction pendulum supporting unit is arranged above a structure to be subjected to vibration/shock control; the supporting steel platform is arranged above the double-curvature variable friction pendulum supporting unit; The tuning liquid damper body is arranged above the supporting steel platform and is used for controlling wind vibration response of the structure; The collision buffers are arranged at two ends of the side face of the supporting steel platform and are used for buffering and limiting under the working condition of very rare earthquakes and large displacement. Further, the tuning liquid damper body comprises a water tank and a plurality of grids, wherein the grids are arranged in the water tank, the grids and the cross section of the water tank are horizontally or vertically arranged, and the grids are used for enhancing energy consumption. The water tank is characterized in that the tank body structure of the water tank is selected from various forms such as cuboid or cylinder, and the material of the water tank is selected from con