CN101100879A - Large-deformation large-tonnage composite viscoelasticity damper - Google Patents
Large-deformation large-tonnage composite viscoelasticity damper Download PDFInfo
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- CN101100879A CN101100879A CNA2007100235844A CN200710023584A CN101100879A CN 101100879 A CN101100879 A CN 101100879A CN A2007100235844 A CNA2007100235844 A CN A2007100235844A CN 200710023584 A CN200710023584 A CN 200710023584A CN 101100879 A CN101100879 A CN 101100879A
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Abstract
An anti-knock device of large distortion and heavy load visco-elasticity damper is composed by a large distortion visco-elasticity damper and lead compacting damper. The large distortion visco-elasticity damper is put in the middle and surrounded by several lead compacting dampers with the top and bottom linked to the armor plate to from an integrated damper.
Description
Technical field
The present invention is a kind of device that is used for civil engineering structure antivibration (shake), especially at the situation of large-deformation large-tonnage.
Background technology
Seismic forces and the wind power of shaking are the major control loads that building structure is born; also be to cause building structure that the principal element of destroying and collapsing takes place; force mechanism and the dynamic response of cognitive structure under the dynamic load effect exactly, and it is implemented reliable antivibration (shake) safeguard measure is the research topic of a frontier nature.The control of structure passive energy dissipation is a kind of novel antivibration (shake) mode, promptly utilizes the passive energy dissipation device to consume the external drive energy, alleviates the destruction of external drive to main structure to reach.Shake at present and the passive energy dissipation device of earthquake developmental research mainly contains fluid damper, metal damper, frcition damper, viscoelastic damper etc. at wind.Fluid damper utilizes the motion dissipates vibration energy of fluid, but is easy to generate bubble in filling process, thereby causes the necking of curve that consumes energy, and has the high shortcoming of easy to leak cost; Metal damper and frcition damper are easy to make, cheap, but its energy-dissipating property has hysteresis, may produce adverse influence to the acceleration responsive of structure, and the energy-dissipating property of metal damper is vulnerable to the influence of multiple parameters such as metallic character, damper shape; Viscoelastic damper is cheap, energy dissipation capacity is strong, it is one of damping device the most widely during engineering is used, yet its performance is subjected to the influence of ambient temperature bigger, and deformability is subjected to the restriction of viscoelastic layer thickness to have the little shortcoming of distortion, general maximum distortion only has 60mm (300% strain amplitude), this is because viscoelastic layer thickness is 20mm to the maximum, when thickness is excessive, the warpage unstability takes place in viscoelastic layer easily, simultaneously because the increase of viscoelastic layer thickness, the suffered shearing bearing capacity of viscoelastic layer reduces, the tonnage that damper bears reduces, and for range of application and the applicable elements of expanding viscoelastic damper, strengthens the distortion limit value of viscoelastic damper, increase the damping force of viscoelastic damper, reduce the influence of temperature to viscoelastic damper, patent of the present invention has been developed a kind of novel function admirable in conjunction with the advantage of various dampers, cheap, composite viscoelasticity damper with large-deformation large-tonnage characteristic.
Summary of the invention
Technical problem: the purpose of this invention is to provide a kind of function admirable, large-deformation large-tonnage composite viscoelasticity damper cheap, easy to make.
Technical scheme: large-deformation large-tonnage composite viscoelasticity damper of the present invention is combined by large deformation viscoelastic damper and lead extrusion damper and constitutes, the centre is the large deformation viscoelastic damper, a plurality of lead extrusion dampers of symmetric arrangement all around, the top of each damper is connected with upper steel plate respectively, the bottom of each damper is connected with lower steel plate respectively, makes all dampers connect into an integral body.
Wherein, described large deformation viscoelastic damper by interior constraint steel plate, retrain steel plate outward and viscoelastic material layer is formed; In the middle of interior constraint steel plate is positioned at, be provided with viscoelastic material layer in the both sides of interior constraint steel plate, constraint steel plate outside two outsides of viscoelastic material layer are provided with, the bottom and the lower steel plate that retrain steel plate outward link together; The top and the upper steel plate of interior constraint steel plate link together.In the large deformation viscoelastic damper, employing layering in thick viscoelastic material layer adds steel sheet, has guaranteed that it has good whole stability when large deformation.
Described lead extrusion damper is by outer steel cylinder and be positioned at its inner rod iron and form, the end steel plate is arranged in outer steel cylinder and fixedlys connected with outer steel cylinder, outer steel cylinder is divided into upper cavity and lower chamber two parts, the rod iron that is positioned at outer steel cylinder is provided with a rod iron prominence, on the outer steel cylinder of upper cavity part, be provided with perfusing hole, lower chamber is a cavity, has guaranteed the space of rod iron.The bottom and the lower steel plate of outer steel cylinder link together, and the top and the upper steel plate of rod iron link together.
Large-deformation large-tonnage composite viscoelasticity damper added be located at the position that intercolumniation support, bean column node, truss lower chord etc. may produce moderate finite deformation.When structure deforms because of vibration, the interior constraint steel plate of viscoelastic damper produces the relative changing of the relative positions with outer constraint steel plate, viscoelastic material layer generation shear strain dissipates vibration energy, if be out of shape bigger, because layering is provided with steel sheet in viscoelastic material layer, they have guaranteed the integral rigidity of viscoelastic layer, and viscoelastic damper the warpage unstable phenomenon can not take place, and are all to be favourable for the application life of damper or for its energy dissipation capacity like this.When structure deforms because of vibration, lead damper and viscoelastic damper collaborative work, for lead extrusion damper, structural vibration causes the extrusion axis of lead damper to move back and forth, lead generation plastic flow dynamic deformation in the sleeve, bigger damping force is provided, absorbs, consume the energy of outside input simultaneously.Owing to used the very little lead damper of temperature influence, weakened the influence degree of temperature greatly simultaneously to single viscoelastic damper.
This shows that this large-deformation large-tonnage composite viscoelasticity damper has highly energy-consuming, large deformation, making is simple, temperature effect is little advantage.
Beneficial effect: large-deformation large-tonnage composite viscoelasticity damper of the present invention has the following advantages:
(1) makes full use of the plumbous shear extrusion hysteresis distortion and the shearing lag return of viscoelastic material and be out of shape two kinds of energy consume mechanisms, had good hysteresis performance and damping characteristic;
(2) in the viscoelastic layer of viscoelastic damper, adopt adding layering steel-sheet method, guaranteed when it provides moderate finite deformation, to have good whole stability;
(3) because the acting in conjunction of viscoelastic damper has improved the hysteresis of lead damper energy-dissipating property;
(4) use of lead extrusion damper makes damping structure reduced by the influence of environment temperature, provides bigger damping force to solve the little problem of viscoelastic material tonnage simultaneously;
(5) test specimen is made simple and convenient, cheap.This damping device can be widely used in adjacent building, bridge construction and tower mast structure etc. and may produce big distortion and need provide in the wind resistance and earthquake-proof construction of civil engineering structure of big tonnage.
Description of drawings
Fig. 1 is a sectional elevation structural representation of the present invention.
Fig. 2 is a flat cutting face structural representation of the present invention.
Have among the figure: large deformation viscoelastic damper 1, interior constraint steel plate 10, viscoelastic material layer 11, steel sheet 111, retrain steel plate 12 outward; Lead extrusion damper 2, rod iron 21, rod iron prominence 211, outer steel cylinder 22, perfusing hole 221, upper cavity 222, end steel plate 23, lower chamber 223; Upper steel plate 3, lower steel plate 4.
The specific embodiment
Large-deformation large-tonnage composite viscoelasticity damper of the present invention is combined by large deformation viscoelastic damper 1 and lead extrusion damper 2 and constitutes, the centre is a large deformation viscoelastic damper 1, a plurality of lead extrusion dampers 2 of symmetric arrangement all around, the top of each damper is connected with upper steel plate 3 respectively, the bottom of each damper is connected with lower steel plate 4 respectively, makes all dampers connect into an integral body.
Its above large deformation viscoelastic damper 1 by interior constraint steel plate 10, retrain steel plate 12 outward and viscoelastic material layer 11 is formed; In the middle of interior constraint steel plate 10 is positioned at, be provided with viscoelastic material layer 11 in the both sides of interior constraint steel plate 10, constraint steel plate 12 outside two outsides of viscoelastic material layer 11 are provided with, the bottom and the lower steel plate 4 that retrain steel plate 12 outward link together; The top and the upper steel plate 3 of interior constraint steel plate 10 link together.
When structural vibration the interior constraint steel plate 10 of viscoelastic damper with outside constraint steel plate 12 produce the relative changing of the relative positions, the a large amount of vibrational energy of shear strain dissipation takes place in viscoelastic material layer 11, owing to layering in viscoelastic material layer 11 is provided with steel sheet 111, guaranteed that therefore warpage does not take place viscoelastic damper 1 when producing large deformation simultaneously; For lead extrusion damper 2, structural vibration promotes rod iron 21 and moves back and forth, and the plastic flow dynamic deformation takes place the lead in the outer steel cylinder 22 thereupon, produces damping force, thereby reaches the effect of absorption, power consumption.When perfusion is plumbous, plumbously pour in the upper cavity 222 by perfusing hole 221, treat that plumbous perfusion is closely knit after, with the seal sealing, remove the pipeline of perfusing hole 221 again, with perfusing hole 221 sealings.This damper combines viscoelastic damper 1 large deformation and lead extrusion damper 2 large-tonnages and little advantage influenced by ambient temperature, has a good application prospect.
Claims (4)
1, a kind of large-deformation large-tonnage composite viscoelasticity damper, it is characterized in that this damper is combined by large deformation viscoelastic damper (1) and lead extrusion damper (2) and constitutes, on general structure, the centre is large deformation viscoelastic damper (1), a plurality of lead extrusion dampers of symmetric arrangement (2) all around, the top of each damper is connected with upper steel plate (3) respectively, and the bottom of each damper is connected with lower steel plate (4) respectively, makes all dampers connect into an integral body.
2, large-deformation large-tonnage composite viscoelasticity damper according to claim 1, it is characterized in that described large deformation viscoelastic damper (1) by interior constraint steel plate (10), retrain steel plate (12) outward and viscoelastic material layer (11) is formed; In the middle of interior constraint steel plate (10) is positioned at, be provided with viscoelastic material layer (11) in the both sides of interior constraint steel plate (10), constraint steel plate (12) outside two outsides of viscoelastic material layer (11) are provided with, the bottom and the lower steel plate (4) that retrain steel plate (12) outward link together; The top and the upper steel plate (3) of interior constraint steel plate (10) link together.
3, large-deformation large-tonnage composite viscoelasticity damper according to claim 1, it is characterized in that described lead extrusion damper (2) is by outer steel cylinder (22) be positioned at its inner rod iron (21) and form, end steel plate (23) is arranged in outer steel cylinder (22) and fixedlys connected with outer steel cylinder (22), outer steel cylinder (22) is divided into upper cavity (222) and lower chamber (223) two parts, the rod iron (21) that is positioned at outer steel cylinder (22) is provided with a rod iron prominence (211), on the outer steel cylinder (22) of upper cavity (222) part, be provided with perfusing hole (221), lower chamber (223) is a cavity, guaranteed the space of rod iron, the bottom of outer steel cylinder (22) and lower steel plate (4) link together, and the top of rod iron (21) and upper steel plate (3) link together.
4, large-deformation large-tonnage composite viscoelasticity damper according to claim 1 and 2, it is characterized in that in the large deformation viscoelastic damper (1), employing layering in thick viscoelastic material layer (11) adds steel sheet (111), has guaranteed that it has good whole stability when large deformation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100235844A CN100570087C (en) | 2007-06-08 | 2007-06-08 | Large-deformation large-tonnage composite viscoelasticity damper |
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| CNB2007100235844A CN100570087C (en) | 2007-06-08 | 2007-06-08 | Large-deformation large-tonnage composite viscoelasticity damper |
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| CN101100879A true CN101100879A (en) | 2008-01-09 |
| CN100570087C CN100570087C (en) | 2009-12-16 |
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| CNB2007100235844A Expired - Fee Related CN100570087C (en) | 2007-06-08 | 2007-06-08 | Large-deformation large-tonnage composite viscoelasticity damper |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103216017A (en) * | 2012-01-18 | 2013-07-24 | 南京丹普科技工程有限公司 | Viscoelastic damper |
| CN103328736A (en) * | 2011-01-14 | 2013-09-25 | C·克瑞斯托普罗斯 | Coupling member for damping vibrations in building structures |
| CN105133746A (en) * | 2015-09-30 | 2015-12-09 | 河南省电力勘测设计院 | K-shaped shearing damper |
| CN105804267A (en) * | 2016-06-01 | 2016-07-27 | 南京理工大学 | Multi-dimensional seismic mitigation and isolation device |
| CN106639457A (en) * | 2016-10-29 | 2017-05-10 | 海南大学 | Combined windproof anti-shock coupling beam energy dissipation device |
| CN109537754A (en) * | 2018-11-27 | 2019-03-29 | 东南大学 | Viscoplasticity rotary type Damper Braces and its working method |
| CN109763580A (en) * | 2018-12-29 | 2019-05-17 | 东南大学 | A kind of viscoplasticity-TMD compound vitamin damping device and its shock-dampening method |
| CN110207959A (en) * | 2019-05-19 | 2019-09-06 | 北京工业大学 | A kind of lead damper structure testing machine vibration absorber |
| CN113982345A (en) * | 2021-10-18 | 2022-01-28 | 东南大学 | Composite metal sleeve viscoelastic damper |
-
2007
- 2007-06-08 CN CNB2007100235844A patent/CN100570087C/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103328736A (en) * | 2011-01-14 | 2013-09-25 | C·克瑞斯托普罗斯 | Coupling member for damping vibrations in building structures |
| CN103328736B (en) * | 2011-01-14 | 2015-08-12 | C·克瑞斯托普罗斯 | For the coupling member of the vibration in damping building structure |
| CN103216017A (en) * | 2012-01-18 | 2013-07-24 | 南京丹普科技工程有限公司 | Viscoelastic damper |
| CN105133746A (en) * | 2015-09-30 | 2015-12-09 | 河南省电力勘测设计院 | K-shaped shearing damper |
| CN105804267A (en) * | 2016-06-01 | 2016-07-27 | 南京理工大学 | Multi-dimensional seismic mitigation and isolation device |
| CN106639457B (en) * | 2016-10-29 | 2019-03-22 | 海南大学 | A kind of combined wind resistance antidetonation coupling beam sinker |
| CN106639457A (en) * | 2016-10-29 | 2017-05-10 | 海南大学 | Combined windproof anti-shock coupling beam energy dissipation device |
| CN109537754A (en) * | 2018-11-27 | 2019-03-29 | 东南大学 | Viscoplasticity rotary type Damper Braces and its working method |
| CN109537754B (en) * | 2018-11-27 | 2020-11-24 | 东南大学 | Viscoelastic rotary damping support and working method thereof |
| CN109763580A (en) * | 2018-12-29 | 2019-05-17 | 东南大学 | A kind of viscoplasticity-TMD compound vitamin damping device and its shock-dampening method |
| CN110207959A (en) * | 2019-05-19 | 2019-09-06 | 北京工业大学 | A kind of lead damper structure testing machine vibration absorber |
| CN113982345A (en) * | 2021-10-18 | 2022-01-28 | 东南大学 | Composite metal sleeve viscoelastic damper |
| CN113982345B (en) * | 2021-10-18 | 2023-02-21 | 东南大学 | Composite metal sleeve viscoelastic damper |
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| CN100570087C (en) | 2009-12-16 |
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Granted publication date: 20091216 Termination date: 20120608 |