CN210797232U - Grating plate type tuned water tank damper - Google Patents
Grating plate type tuned water tank damper Download PDFInfo
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- CN210797232U CN210797232U CN201920702803.XU CN201920702803U CN210797232U CN 210797232 U CN210797232 U CN 210797232U CN 201920702803 U CN201920702803 U CN 201920702803U CN 210797232 U CN210797232 U CN 210797232U
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- water tank
- recess
- tank
- plate type
- grid board
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 72
- 238000009826 distribution Methods 0.000 claims abstract description 3
- 238000013016 damping Methods 0.000 abstract description 23
- 230000000694 effects Effects 0.000 abstract description 5
- 238000010276 construction Methods 0.000 abstract description 4
- 238000003860 storage Methods 0.000 abstract description 2
- 239000007788 liquid Substances 0.000 description 9
- 230000009471 action Effects 0.000 description 4
- 238000004458 analytical method Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000012216 screening Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000021715 photosynthesis, light harvesting Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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- Buildings Adapted To Withstand Abnormal External Influences (AREA)
Abstract
The utility model discloses a harmonious water tank attenuator of grid board type, comprising a water tank, the water tank is the open recess of top surface, and the recess includes bottom surface and recess wall, and bottom surface and recess wall are connected, and the recess wall includes internal face and outer wall, and the water has been stored in the recess, still includes X row grid board, and X is the natural number that is not less than 1, the grid board passes through the vertical fixing of fixing device on the internal face in the recess, cuts apart into X +1 with the water tank and separates the chamber, and the last distribution of grid board has the aperture. The utility model provides a harmonious water tank attenuator of grid board type improves the effect of power consumption damping effectively through built-in multichannel grid board, can be used to stride the dynamic effect control that bridge construction stage or high-rise building structure arouse by the wind load greatly, and this attenuator simple structure, economical and practical can collect attenuator damping function and cistern water storage function in an organic whole, and the mounted position is nimble moreover, applicable in not equidirectional damping requirement.
Description
Technical Field
The utility model relates to a civil engineering structure power consumption damping controlling means, concretely relates to grid plate type tuning water tank attenuator.
Background
In recent years, with the application of new materials and the continuous improvement of construction design technologies, the long-span bridge is rapidly developed. However, the problems of wind vibration in the construction stage are increasingly highlighted, and the problems are widely concerned and researched. The Tuned Liquid Damper (TLD for short) for providing damping force by generating dynamic pressure difference and Liquid inertia force in the shaking process of Liquid in the fixed water tank has the advantages of small change on an original system, strong robustness, low manufacturing cost, easiness in installation and disassembly, insensitivity to temperature change, easiness in matching frequency modulation frequency and the like, and arouses the attention of vast civil engineering researchers. The Tuned Liquid Damper is mainly divided into two types, wherein a first type water tank is in a U-shaped tubular shape and is called as a Tuned Liquid column Damper (TLCD for short); the second type of tank is rectangular or cylindrical, known as a TLD.
However, the liquid-adjusting damper commonly used at present still has certain disadvantages. No matter TLD or TLCD, because liquid damping is less, will lead to the water in the water tank excessively to rock to improve its nonlinearity, increased the degree of difficulty of predicting its performance as power consumption damping device, reduced its damping effect to the main structure.
Therefore, the grid plates arranged in the water tank can inhibit liquid from excessively shaking, reduce the nonlinear characteristics of frequency hopping, frequency offset and the like, increase the water body flow around, increase the energy dissipation and improve the damping capacity. The depth of the water body in the water tank can control the mass ratio, and the number of the grating plates can control the damping ratio.
SUMMERY OF THE UTILITY MODEL
For solving the problem that exists among the prior art, the utility model aims to provide a grid plate type tuning water tank damper has solved in ordinary TLD damping liquid level that low arouses through addding the grid plate and has rocked strong nonlinear problem for the nonlinearity of whole attenuator is showing and is reducing, has avoided nonlinear characteristics such as "frequency modulation", "frequency offset" that exist in ordinary TLD basically. Meanwhile, the energy consumption of the vortex street of the water body near the holes of the grating plate during vibration is reduced, and the vibration reduction and energy consumption effects of the tuned liquid damper under the action of dynamic load are improved.
In order to achieve the above object, the present invention is achieved by the following technical solutions.
The utility model provides a harmonious water tank attenuator of grid board type, comprising a water tank, the water tank is the open recess of top surface, and the recess has bottom surface and recess wall, and bottom surface and recess wall are connected, and the recess wall includes internal face and outer wall, and the water has been stored in the recess, still includes the grid board that X was arranged, and X is the natural number that is not less than 1, the grid board passes through the vertical fixing of fixing device on the recess inner wall in the recess, cuts apart into X +1 with the water tank and separates the chamber, and the last distribution of grid board has the aperture.
Preferably, the fixing device is a positioning clamping groove which is vertically and symmetrically arranged on the inner wall surface of the groove.
Preferably, the number of pairs of the positioning clamping grooves is X, and the number of pairs of the positioning clamping grooves corresponds to the number of rows of the grating plates.
Preferably, the height of the positioning clamping groove is smaller than that of the groove wall.
Preferably, the height of the grid plate is equal to the height of the groove wall.
Preferably, the small holes are distributed on the grid plate at equal intervals, and the shape of the small holes is more than one of square, circle and triangle.
Preferably, the water tank is a rectangular parallelepiped with an open top surface.
Preferably, the small holes are circular, and the diameter of the small holes is 1/20-1/10 of the minimum value of the height and the width of the cuboid; the small holes are square or triangular, and the side length of the small holes is 1/20-1/10 of the minimum value of the height and the width of the cuboid.
Preferably, the ratio of the height of the water body in the water tank to the length of the water tank in the vibration direction, which is the vibration direction of the water tank, is 1/25-1/2.
Preferably, the X +1 separate chambers are arranged in the water tank in equal parts and have the same structure, and the separate chambers are cuboids.
Preferably, the total damping is equal to the sum of the damping generated by friction of the inner part of the water body, the water body and the inner wall surface of the water tank during vibration and the damping generated when the water body passes through the small holes in the grid plate.
Preferably, the mass ratio of the grille plate type tuned water tank damper to the main structure connected with the damper can be adjusted by using the water body in the water tank; the number of rows of the grating plates can adjust the damping ratio of a system to which the damper belongs.
The design principle of the utility model is that: the utility model provides a harmonious water tank attenuator rigid mounting of grid board type is on the main structure. Under the action of dynamic loads (wind loads, earthquake loads and the like), the main structure drives the water tank of the damper to vibrate together, so that the water body in the water tank is caused to shake. The friction force generated by the shaking of the water body boundary layer, the broken waves generated under strong excitation and the vortex street streaming generated near the small hole holes of the grating plate can dissipate the energy of the vibration of the main structure, thereby realizing the control of the vibration of the main structure.
The design idea of the utility model is that:
1) and selecting a proper mass ratio (namely the ratio of the total mass of the water body to the total mass of the main structure) according to the specific requirements of the main structure.
2) The size of the water tank is selected according to the allowed space range of the main structure, and the number of the grating plates is designed.
3) Establishing a finite element analysis system, analyzing the dynamic parameters (frequency ratio, damping ratio and the like) of the finite element analysis system, continuously adjusting the number and the positions of the grating plates according to the finite element analysis result, and establishing a corresponding database for later screening.
4) And screening out the grating plate setting scheme meeting the requirements from the established database.
Compared with the prior art, the utility model has the following beneficial effect and advantage:
(1) the utility model provides a grid plate type tuned water tank damper which has simple structure and flexible use, and can flexibly adjust the size and the arrangement mode of the water tank according to the space size of the main structure;
(2) the utility model has simple design principle, the grid plate is easy to adjust, the grid plate can not only obviously reduce the nonlinear characteristic of the common TLD, avoid the nonlinear characteristics of frequency hopping, frequency offset and the like, but also adjust the damping provided by the damper;
(3) the utility model provides a harmonious water tank attenuator of grid board type is easily installed, and the usage is multidirectional, only needs to set up the grid board in the ordinary TLD, and the expense is lower, uses when the retaining in the water tank still can supply building or bridge construction simultaneously for the resource has obtained abundant utilization, and application prospect is very wide.
Drawings
FIG. 1 is a schematic view of a grill plate type tuned tank damper provided by an embodiment;
FIG. 2 is a front view of a grill plate type tuned tank damper provided in an embodiment;
FIG. 3 is a top view of the grille plate type tuned tank damper of the present invention;
reference numbers in the figures: 1 is a water tank, 2 is a grating plate, 3 is a positioning clamping groove, 4 is a water body and 5 is a separation cavity.
Detailed Description
The present invention will be further described with reference to the following examples, but the present invention is not limited thereto.
Examples
This embodiment provides a harmonious water tank attenuator of grid board type, as shown in fig. 1, fig. 2 and fig. 3, including water tank 1, water tank 1 is the open cuboid of top surface, and the cuboid has bottom surface and cuboid wall, and bottom surface and cuboid wall are integrative to be formed, and the cuboid wall includes internal face and outer wall, and water 4 has been stored to water tank 1 in, still includes 3 rows of grid board 2, grid board 2 is vertical to be fixed in the cuboid through positioning channel groove 3 on the internal face, and 1 is cut apart into 4 and separates chamber 5 with water tank, and 4 separate 5 equipartition settings in chamber, and the structure is the same, separate chamber 5 and be the cuboid, and the equidistance distributes on grid board 2 has the aperture of square. The positioning clamping grooves 3 are 3 pairs in total, each pair of positioning clamping grooves 3 are vertically and symmetrically arranged on the inner wall surface, and the height of each positioning clamping groove 3 is smaller than that of the rectangular wall. The height of the grating plate 2 is equal to the height of the rectangular wall. The side of the square aperture is 1/10 the height of the cuboid. The ratio of the height of the water body 4 in the water tank 1 to the length of the water tank 1 in the vibration direction, which is the vibration direction of the water tank 1, is 2/5. The total damping is equal to the sum of the damping generated by the viscosity action of the inner part of the water body 4, the water body 4 and the inner wall surface of the cuboid during shaking and the damping generated by the vortex street streaming action when the water body passes through the small hole holes on the grating plate 2.
The utility model provides a harmonious water tank attenuator of grid board type simple structure, economical and practical can collect attenuator damping function and cistern water storage function in an organic whole, and the mounted position is nimble moreover, and applicable damping requirement in the equidirectional not can reach better damping effect.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way. Any equivalent changes, modifications or evolutions made by those skilled in the art to the above embodiments by using the technical solutions of the present invention still belong to the scope of the technical solutions of the present invention.
Claims (10)
1. The utility model provides a harmonious water tank attenuator of grid board type, includes water tank (1), water tank (1) is the open recess of top surface, and the recess includes bottom surface and recess wall, and bottom surface and recess wall are connected, and the recess wall includes internal face and outer wall, and water (4) have been stored in the recess, its characterized in that, still includes grid board (2) that X was arranged, and X is the natural number that is not less than 1, grid board (2) are vertical to be fixed in the recess through the fixing device on the internal face, cut apart into X +1 with water tank (1) and separate chamber (5), and the last distribution of grid board (2) has the aperture.
2. Grille plate type tuned tank damper according to claim 1, characterized in that said fixing means are positioning slots (3) vertically and symmetrically arranged on the inner wall surface.
3. Grille plate type tuned tank damper according to claim 2, characterized in that the number of pairs of positioning slots (3) is X, corresponding to the number of rows of grille plates (2).
4. Grill plate type tuned tank damper according to claim 2, characterized in that the height of said positioning slots (3) is smaller than the height of the groove walls.
5. Grill plate type tuned tank damper according to claim 1, characterized in that the height of the grill plate (2) is equal to the height of the groove wall.
6. The grill plate type tuned tank damper according to claim 1, wherein said small holes are distributed equidistantly on the grill plate (2), and the shape of the small holes is one or more of square, circular and triangular.
7. Grill plate type tuned tank damper according to claim 1, characterized in that the tank (1) is a cuboid with open top.
8. The grill plate type tuned tank damper according to claim 7, wherein said apertures are circular and have a diameter of 1/20-1/10 of the minimum of the height and width of said rectangular parallelepiped; the small holes are square or triangular, and the side length of the small holes is 1/20-1/10 of the minimum value of the height and the width of the cuboid.
9. The grill plate type tuned tank damper according to claim 1, wherein the ratio of the height of the water body (4) inside the tank (1) to the length of the tank (1) in the vibration direction of the tank (1) is 1/25-1/2.
10. Grille plate type tuned tank damper according to claim 1, characterized in that said X +1 compartments (5) are equally spaced inside the tank (1) and have the same configuration, said compartments (5) being rectangular parallelepiped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920702803.XU CN210797232U (en) | 2019-05-16 | 2019-05-16 | Grating plate type tuned water tank damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920702803.XU CN210797232U (en) | 2019-05-16 | 2019-05-16 | Grating plate type tuned water tank damper |
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| Publication Number | Publication Date |
|---|---|
| CN210797232U true CN210797232U (en) | 2020-06-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920702803.XU Expired - Fee Related CN210797232U (en) | 2019-05-16 | 2019-05-16 | Grating plate type tuned water tank damper |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110080088A (en) * | 2019-05-16 | 2019-08-02 | 华南理工大学 | A kind of grid template tuning water tank damper |
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2019
- 2019-05-16 CN CN201920702803.XU patent/CN210797232U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110080088A (en) * | 2019-05-16 | 2019-08-02 | 华南理工大学 | A kind of grid template tuning water tank damper |
| CN110080088B (en) * | 2019-05-16 | 2024-04-16 | 华南理工大学 | Grid plate type tuned water tank damper |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200619 |