CN208668661U - A kind of sealing plate prefabricated PC viscoelastic damper - Google Patents
A kind of sealing plate prefabricated PC viscoelastic damper Download PDFInfo
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- CN208668661U CN208668661U CN201820681728.9U CN201820681728U CN208668661U CN 208668661 U CN208668661 U CN 208668661U CN 201820681728 U CN201820681728 U CN 201820681728U CN 208668661 U CN208668661 U CN 208668661U
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Abstract
A kind of sealing plate prefabricated PC viscoelastic damper (1), it is composed of two pieces of outer steel cylinders (2), interior steel cylinder (3), viscoelasticity damping material (4), two pieces tapered piece (5) and two pieces of sealing plates (6).The interior steel cylinder (3) is mounted between two pieces of outer steel cylinders (2), and is vulcanized between inside and outside steel cylinder with viscoelasticity damping material (4) and connected.When the damper works, prestressing force is added in interior steel cylinder by being pressed into circular cone, to squeeze viscoelasticity Damping material layer, applies a vertical force in its shearing motion direction, to realize that the damper generates big damping.The utility model efficiently solve the problems, such as practical common viscoelastic damper in large deformation due to material and steel plate bonding tear failure and cannot play damper powerful and geological process when, leads to the problem of influence of the torsion being applied on damper to damper effect due to malformation.
Description
Technical field
The invention belongs to aseismic control technology of building structure fields can be applied to ground more particularly to a kind of viscoelastic damper
The civil engineering structure in multiple area is shaken, with the wind-induced vibration and seismic response of effective control structure.
Background technique
The energy-dissipating and shock-absorbing of building structure refers to is arranged special energy dissipation component or device in building structure, is allowed to by force
It takes the lead in entering plastic zone when vibration, increases structural damping, absorption and consumption input earthquake to the energy of structural system to protect
The safety of main structure.Viscoelastic damper is a kind of typical passive control device, can be sent out without biggish relative deformation
Vibration control effect is waved, the seismic response and wind dynamic control of structure can be applied to simultaneously.However due to the shearing resistance of viscous-elastic material
And deformability is limited, causes its energy dissipation capacity limited, causes viscoelastic damper to have applied to wind shake and shockproof control larger
Difference.Compared with wind vibration control, shockproof control needs to provide bigger damping force.
Common damping device domestic at present has following several forms:
1. spring vibration damper, which is disadvantageous in that since there are chatterings, easily frequency vibration in transmitting；Resistance
The too small critical damping ratio of Buddhist nun generally only has 0.005, therefore poor for the vibration isolation ability near resonant frequency；
2. rubber shock-absorbing device, shape can freely be determined by having, and control hardness by adjusting rubber compounding component, can
Meet the requirement to all directions stiffness and strength；Internal friction is big, good damping effect, is conducive to cross resonance region, decaying is high
Frequency vibration and noise；Modular ratio metal is much smaller, can produce compared with large elastic deformation；There is no slipper, is easy to maintain；Matter
Measure small, installation and removal convenience.The advantages that shock stiffness is higher than Static stiffness and dynamic stiffness, is conducive to blastic deformation, but its nature
Frequency is relatively high, and pressure place amount is smaller, is easy to be affected by the external environment, performance is unstable, and service life is shorter.
3. hydraulic damping damper, it is desirable that good airproof performance, it is possible that the phenomenon that oil leak.
4. air damping damper, shortcoming is that oil sealing requirement is high, and gas filling technology is complicated, not easy to repair, when cylinder barrel by
Extraneous greater impact and when changing, then cannot work.
A kind of high-damping rubber viscoelastic damper, high-damping are disclosed in the prior art such as CN201120069817.6
The deformation of rubber viscous-elastic material layer effectively absorbs vibrational energy, and hysteresis circle is full, and fatigue performance is good.But the viscoelasticity
Damper is composed of three-ply plate and two layers of viscous-elastic material layer, is limited by connector rigidity, when damper acts
Relative torsion will be generated in viscoelastic damper between steel plate and outer layer plate, causes the deformation of viscous-elastic material layer uneven, angle
Portion's deformation is big, and meeting premature degradation diffuses further into entire viscoelasticity layer, damper is caused to fail.
A kind of prestressing force viscoelastic damper is disclosed in prior art CN20150540349.9, which uses three
The combining form of layer steel plate two layers of viscous-elastic material of inner clip, and prestressing force, method letter are applied to viscous-elastic material using anchor bolt
Just, easy to implement.But the prestressing force viscoelastic damper be it is flat, for using cross section for the large-span steel of steel pipe at present
For Structural Engineering, it is not suitable for using flat viscoelastic damper because of aesthetic problem.It is clear that patent use is applied
The method of Prestressing is not particularly suited for columnar viscoelastic damper.For the cylinder-shaped viscoelastic damper having a large capacity and a wide range
For, how to apply radial prestressing force in its viscous-elastic material layer to improve its energy dissipation capacity is a problem.
Summary of the invention
The purpose of the present invention is overcoming above-mentioned the deficiencies in the prior art, the present invention provides a kind of sealing plate prefabricated PCs
Viscoelastic damper, for viscoelastic damper in large deformation due to material and steel plate bonding tear failure and cannot be effective
The material damping capacity problem having is played, a kind of effective solution is provided, improves viscoelastic damper
Energy-dissipating and shock-absorbing effect.
The present invention provides a kind of sealing plate prefabricated PC viscoelastic damper for earthquake-resistant structure shock-damping structure, it by
Outer steel cylinder (2), interior steel cylinder (3), viscoelasticity damping material (4), circular cone (5) composition.Interior steel cylinder (3) outer diameter is less than two pieces
Outer steel cylinder (2) internal diameter, so that interior steel cylinder (3) both ends part can be inserted in two pieces of outer steel cylinders (2), viscoelasticity damping material (4)
It is filled between two pieces of outer steel cylinders (2) and interior steel cylinder (3), two pieces of circular cones (5) are then placed in interior steel cylinder (3) interior two sides, sealing plate
(6) two pieces of outer steel cylinder (2) two sides are placed in.
Viscoelasticity damping material (4) is filled in the overlapping part of two pieces of outer steel cylinders (2) and interior steel cylinder (3) by vulcanization.
Interior steel cylinder (3) be by one it is whole steel cylinder is radially elongated split after to spell be round steel cylinder, i.e., in steel cylinder (3) be not one
A entirety, connect by the viscoelasticity damping material of vulcanization with outer steel cylinder (2) it is integral after, wedged by two sections of circular cones (5), it is interior
Steel cylinder (3) is not the construction of an entirety so that it is expanded outwardly after circular cone wedging, to damp material in viscoelasticity
Apply prestressing force radially on material (4).
Outer steel cylinder (2) is divided into two sections, and two segment length are equal, is connect respectively by screw thread (7) with sealing plate (6), by sticking bullet
Property damping material (4) is connected with interior steel cylinder (3).
The installation of sealing plate prefabricated PC viscoelastic damper needs that interior steel cylinder (3) is first combined into cylinder, and fixes,
Viscoelasticity damping material (4) are embedded between two pieces of outer steel cylinders (2) and interior steel cylinder (3).
Circular cone (5) outer diameter is greater than the 1~2mm of internal diameter of interior steel cylinder (3), is made of steel, combines in circular cone with cylindrical body
Form；
Outer steel cylinder (2) both ends outer wall configuration is screw thread, convenient to be attached with sealing plate (6), using the connection side of non-solder
Method can effectively avoid the generation of temperature stress, reduce its adverse effect to viscoelastic damper.
Circular cone (5) is after the completion of interior steel cylinder (3) and two pieces of outer steel cylinder (2) connections by applying in external force indentation
In steel cylinder (3), circular cone (5) squeezes interior steel cylinder (3) to squeeze viscoelasticity damping material (4), generates prestressing force.
Two side seal boards (6) are welded with the nut that internal diameter is equal to two pieces of outer steel cylinder (2) outer diameters, with common group of outer steel cylinder two sides screw thread
At bindiny mechanism.Two pieces of sealing plates (6) are screwed on two pieces of outer steel cylinders (2) by nut.Outer steel cylinder (2) screw thread and sealing plate (6) nut
Screw thread needs to match, and can effectively be connected.
Beneficial effects of the present invention:
This damper provided by the invention is provided by the wedging of circular cone to viscoelasticity damping material radially uniform
Prestressing force, can effectively resist material bonding tear failure when large deformation, and it is dynamic can to resist damper for cylindric shape
Relative torsion will be generated when making between viscoelastic damper middle steel plate and outer layer plate.The threaded connection of sealing plate and outer steel cylinder,
Also influence and prestressed loss of the temperature stress to steel cylinder are efficiently avoided, predetermined function can be preferably played.
Detailed description of the invention
Fig. 1 is sealing plate prefabricated PC viscoelastic damper overlooking structure figure；
Fig. 2 is sealing plate prefabricated PC viscoelastic damper A-A diagrammatic cross-section；
Fig. 3 is steel cylinder fragment schematic diagram one in sealing plate prefabricated PC viscoelastic damper B-B section；
Fig. 4 is steel cylinder fragment schematic diagram two in sealing plate prefabricated PC viscoelastic damper B-B section；
Fig. 5 is steel cylinder fragment schematic diagram three in sealing plate prefabricated PC viscoelastic damper B-B section；
Fig. 6 is that sealing plate assembled implements prestressing force viscoelastic damper schematic diagram；
Fig. 7 is C-C sectional view；
Fig. 8~10 are that sealing plate illustrates to illustrate.
In 1~attached drawing of attached drawing 10,1 is sealing plate prefabricated PC viscoelastic damper；2 be outer steel cylinder；3 be interior steel
Cylinder；4 be viscoelasticity damping material；5 be circular cone；6 be sealing plate；7 be sealing plate and outer steel cylinder screw thread.
Specific embodiment
The technical solution in present invention implementation is described with carrying out complete display below, described embodiment is only this
A part of embodiment of invention, and not all embodiments, based on the embodiment in the present invention, the relevant personnel in this field
All other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
The present invention includes viscoelasticity damping material, two pieces of outer steel cylinders, interior steel cylinder, two pieces of circular cones and two sealing plates.Tool
Steps are as follows for body:
Step 1: sealing plate prefabricated PC viscoelastic damper size is determined according to requirement of engineering, it is desirable that interior steel cylinder ruler
Very little less than two pieces outer steel cylinder sizes, two circular cone diameters are slightly larger than interior cylinder diameter, apply prestressing force convenient for inside steel cylinder, thus
Viscoelasticity Damping material layer can effectively be squeezed；
Step 2: factory is gone to customize each component of sealing plate prefabricated PC viscoelastic damper according to determining size.Again
Assembly is carried out to scene, or directly completes assembled process in the factory, then take in-site installation in corresponding position；
Step 3: the interior steel cylinder made in factory can be an entirety, later during assembly using instrument by its
It is cut into several pieces or factory is just produced as several components that can be combined to cylinder according to final drawing in process of production,
Steel cylinder is each component composition of separation, the expansible when applying prestressing force in it is required that；
Step 4: each component is arranged according to the relative position of design, by viscoelasticity damping material vulcanization be connected in,
Between outer steel cylinder, viscoelastic damper is preliminarily formed, viscoelasticity Damping material layer width connect width with interior steel cylinder and outer steel cylinder
Unanimously；
Step 5: after viscoelasticity damping material and inside and outside steel cylinder are completely embedded, prepare to apply prestressing force, by that will omit
Circular cone greater than interior steel cylinder squeezes into interior steel cylinder, opens steel cylinder in separate type, to apply to viscoelasticity damping material vertical
Power reaches application prestressing force, increases damping, improves the ability of damper energy-dissipating and shock-absorbing；
Step 6: sealing plate is connected by screw thread with outer steel cylinder, sealing plate can after all components are respectively mounted again with
Outer steel cylinder connection, first step that can also be used as assembled process are implemented, are connected through a screw thread it is possible to prevente effectively from traditional
Temperature stress caused by welded connecting enables prestressing force viscoelastic damper preferably to play predetermined function.
The working principle of the invention is that prestressing force is uniform by circular cone, is symmetrically loaded in interior steel in damper work
Cylinder applies a vertical force in its shearing motion direction to squeeze viscoelasticity Damping material layer, realizes the prestressing force damping
Device generates big damping, efficiently solves practical common viscoelastic damper in large deformation since the bonding of material and steel plate is torn
It splits destruction and the damper powerful problem cannot be played, the vibration of structure can be input to by shear-deformable dissipate of its hysteresis
Energy, improves the energy-dissipating and shock-absorbing ability of damper, and damper has that structure is simple, processing side according to embodiments of the present invention
Just, the features such as hysteretic energy height, excellent in mechanical performance.
Claims (10)
1. a kind of sealing plate prefabricated PC viscoelastic damper for earthquake-resistant structure shock-damping structure, including it is outer steel cylinder (2), interior
Steel cylinder (3), viscoelasticity damping material (4), circular cone (5), sealing plate (6)；It is characterized by: described interior steel cylinder (3) outer diameter is small
In two pieces of outer steel cylinder (2) internal diameters, the interior outer steel cylinder (2) in two pieces of partial insertion of steel cylinder (3) both ends is interior, the viscoelasticity damping material
(4) it is filled between two pieces of outer steel cylinders (2) and interior steel cylinder (3), two pieces of circular cones (5) are placed in two in interior steel cylinder (3)
Side, the sealing plate (6) are placed in two pieces of outer steel cylinder (2) two sides.
2. sealing plate prefabricated PC viscoelastic damper according to claim 1, it is characterised in that: the viscoelasticity
Damping material (4) is filled in the overlapping part of two pieces of outer steel cylinders (2) and interior steel cylinder (3) by vulcanization.
3. sealing plate prefabricated PC viscoelastic damper according to claim 1, it is characterised in that: the interior steel cylinder
(3) be by one it is whole steel cylinder is radially elongated split after to spell be round steel cylinder, glued by vulcanization and outer steel cylinder (2) for after entirety,
It is wedged by two sections of circular cones (5), interior steel cylinder (3) expands outwardly, to apply prestressing force in viscoelasticity protective layer.
4. sealing plate prefabricated PC viscoelastic damper according to claim 1, it is characterised in that: the outer steel cylinder
(2) it is divided into two sections, two segment length are equal, connect respectively by screw thread with sealing plate (6).
5. sealing plate prefabricated PC viscoelastic damper according to claim 1, it is characterised in that: first by interior steel cylinder
(3) it is combined into cylinder, and is fixed, viscoelasticity damping material is embedded between two pieces of outer steel cylinders (2) and interior steel cylinder (3).
6. sealing plate prefabricated PC viscoelastic damper according to claim 1, it is characterised in that: the circular cone
(5) outer diameter is greater than the 1~2mm of internal diameter of interior steel cylinder (3), is made of steel, in circular cone and cylindrical body combination form.
7. sealing plate prefabricated PC viscoelastic damper according to claim 1, it is characterised in that: the interior steel cylinder
(3) both ends outer wall configuration is screw thread.
8. sealing plate prefabricated PC viscoelastic damper according to claim 1, it is characterised in that: the circular cone
It (5) is to be pressed into interior steel cylinder (3) after the completion of interior steel cylinder (3) and two pieces of outer steel cylinder (2) connections by applying external force,
Circular cone (5) squeezes interior steel cylinder (3) to squeeze viscoelasticity damping material (4).
9. sealing plate prefabricated PC viscoelastic damper according to claim 1, it is characterised in that: two side seal board
(6) it is welded with the nut that internal diameter is equal to two pieces of outer steel cylinder (2) outer diameters；Outer steel cylinder (2) two sides have screw thread.
10. sealing plate prefabricated PC viscoelastic damper according to claim 1, it is characterised in that: described two pieces
Sealing plate (6) is screwed on two pieces of outer steel cylinders (2) by nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820681728.9U CN208668661U (en) | 2018-05-03 | 2018-05-03 | A kind of sealing plate prefabricated PC viscoelastic damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820681728.9U CN208668661U (en) | 2018-05-03 | 2018-05-03 | A kind of sealing plate prefabricated PC viscoelastic damper |
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| CN208668661U true CN208668661U (en) | 2019-03-29 |
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| CN201820681728.9U Active CN208668661U (en) | 2018-05-03 | 2018-05-03 | A kind of sealing plate prefabricated PC viscoelastic damper |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108468394A (en) * | 2018-05-03 | 2018-08-31 | 南京林业大学 | A kind of sealing plate prefabricated PC viscoelastic damper |
| CN113024906A (en) * | 2021-03-03 | 2021-06-25 | 震安科技股份有限公司 | Preparation method of viscoelastic damping material and velocity type viscoelastic damper prepared from viscoelastic damping material |
| CN113236003A (en) * | 2021-04-19 | 2021-08-10 | 东南大学 | Multidimensional damping device applied to prefabricated wallboard structure and damping method thereof |
-
2018
- 2018-05-03 CN CN201820681728.9U patent/CN208668661U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108468394A (en) * | 2018-05-03 | 2018-08-31 | 南京林业大学 | A kind of sealing plate prefabricated PC viscoelastic damper |
| CN113024906A (en) * | 2021-03-03 | 2021-06-25 | 震安科技股份有限公司 | Preparation method of viscoelastic damping material and velocity type viscoelastic damper prepared from viscoelastic damping material |
| CN113236003A (en) * | 2021-04-19 | 2021-08-10 | 东南大学 | Multidimensional damping device applied to prefabricated wallboard structure and damping method thereof |
| CN113236003B (en) * | 2021-04-19 | 2022-04-08 | 东南大学 | Multidimensional damping device applied to prefabricated wallboard structure and damping method thereof |
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Suqian De Wei new material Co., Ltd Assignor: Nanjing Forestry University Contract record no.: X2019320000282 Denomination of utility model: Sealing plate assembly pre-stressed viscoelastic damper Granted publication date: 20190329 License type: Common License Record date: 20191119 Assignee: Nanjing Boke New Material Industry Research Institute Co., Ltd. Assignor: Nanjing Forestry University Contract record no.: X2019320000283 Denomination of utility model: Sealing plate assembly pre-stressed viscoelastic damper Granted publication date: 20190329 License type: Common License Record date: 20191119 Assignee: Suqian Dewei Fiberglass Co., Ltd. Assignor: Nanjing Forestry University Contract record no.: X2019320000281 Denomination of utility model: Sealing plate assembly pre-stressed viscoelastic damper Granted publication date: 20190329 License type: Common License Record date: 20191119 |
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| EE01 | Entry into force of recordation of patent licensing contract |