CN108798168B - Metal-viscous-viscoelastic composite damper and damping wall - Google Patents
Metal-viscous-viscoelastic composite damper and damping wall Download PDFInfo
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- CN108798168B CN108798168B CN201810731908.8A CN201810731908A CN108798168B CN 108798168 B CN108798168 B CN 108798168B CN 201810731908 A CN201810731908 A CN 201810731908A CN 108798168 B CN108798168 B CN 108798168B
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- damper
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- metal
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- 239000002131 composite material Substances 0.000 title claims abstract description 44
- 238000013016 damping Methods 0.000 title claims abstract description 22
- 239000002184 metal Substances 0.000 claims abstract description 29
- 239000003190 viscoelastic substance Substances 0.000 claims description 28
- 229920002545 silicone oil Polymers 0.000 claims description 7
- 239000011345 viscous material Substances 0.000 claims description 6
- 239000012611 container material Substances 0.000 claims description 2
- 239000007769 metal material Substances 0.000 claims description 2
- 238000005265 energy consumption Methods 0.000 abstract description 19
- 230000008901 benefit Effects 0.000 abstract description 4
- 229910000831 Steel Inorganic materials 0.000 description 11
- 239000010959 steel Substances 0.000 description 11
- 230000000694 effects Effects 0.000 description 5
- 241000446313 Lamella Species 0.000 description 3
- 230000009471 action Effects 0.000 description 3
- 230000021715 photosynthesis, light harvesting Effects 0.000 description 3
- 230000008093 supporting effect Effects 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000002861 polymer material Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
- E04H9/021—Bearing, supporting or connecting constructions specially adapted for such buildings
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
- E04H9/021—Bearing, supporting or connecting constructions specially adapted for such buildings
- E04H9/022—Bearing, supporting or connecting constructions specially adapted for such buildings and comprising laminated structures of alternating elastomeric and rigid layers
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Environmental & Geological Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Vibration Prevention Devices (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
Abstract
The invention discloses a metal-viscous-viscoelastic composite damper which comprises a top plate, a bottom plate and a composite damper main body, wherein the composite damper main body is fixedly arranged between the top plate and the bottom plate, the composite damper main body comprises a metal damper, a viscous damper and a viscoelastic damper, the metal damper is connected to the outside of the viscous damper, and the viscoelastic damper is connected to the inside of the viscous damper. The invention also discloses a metal-viscous-viscoelastic composite damping wall, which comprises an upper beam, a lower beam and the metal-viscous-viscoelastic composite damper, wherein a top plate of the metal-viscous-viscoelastic composite damper is fixedly connected with the upper beam, and a bottom plate of the metal-viscous-viscoelastic composite damper is fixedly connected with the lower beam. The invention has the advantages of fully exerting the rigidity support of the metal damper and the viscoelastic damper in small earthquake, fully exerting the damping energy consumption of the viscous damper and the viscoelastic damper, and fully exerting the damping energy consumption of the metal damper in large earthquake.
Description
Technical Field
The present invention relates to a damper and a damping wall, and more particularly, to a metal-viscous-viscoelastic composite damper and a metal-viscous-viscoelastic composite damping wall.
Background
The modern high-rise buildings are increasingly increased, the structure is obviously influenced by earthquake and wind vibration, and the earthquake and wind vibration reaction of the structure is reduced, so that the structure becomes an important aspect of structural design. Dampers, which dissipate the vibration energy of a structure to reduce the vibration experienced by the structure by increasing the damping of the structure, are now widely used in construction. The damper is commonly used as a metal damper, a viscous damper, a viscoelastic damper and the like, but a single type of product has certain limitations.
The metal damper has a plurality of defects in the aspects of design and performance, and the main difficulty is that the yield point of the damper is difficult to match with the critical points of the elastic stage and the elastoplastic stage of the main structure, and the structural design requirements of small earthquake, medium earthquake and large earthquake are difficult to meet simultaneously. The design yield displacement offset of part of the metal damper is larger, and the damper does not yield under the medium vibration effect and cannot play a role in energy dissipation and vibration reduction; the yielding displacement of part of the damper is smaller, the damper is yielding and consumes energy under the action of small earthquake, and the energy consumption capacity is exerted prematurely, so that the energy consumption performance under medium earthquake and large earthquake is reduced.
The viscous damper can well provide damping ratio under small earthquake, reduce earthquake action, reduce beam column section and reinforcement, and has obvious economic benefit, but can not provide rigidity, and the energy consumption proportion of the viscous damper can be correspondingly reduced along with the increase of earthquake intensity.
The viscoelastic damper has the double-layer effects of rigidity and damping, but is very sensitive to temperature, and the energy consumption effect of the viscoelastic damper is poor along with the rise of temperature, and the energy consumption process of the viscoelastic damper is a friction heat generation process, so that the action of the viscoelastic damper is influenced.
Disclosure of Invention
The invention aims to solve the technical problem of providing a metal-viscous-viscoelastic composite damper which can provide rigidity support and damping energy consumption in small earthquake and ensure that the energy consumption capacity in large earthquake is not reduced.
In order to solve the technical problems, the invention provides a metal-viscous-viscoelastic composite damper which comprises a top plate, a bottom plate and a composite damper main body, wherein the composite damper main body is fixedly arranged between the top plate and the bottom plate, the composite damper main body comprises a metal damper, a viscous damper and a viscoelastic damper, the metal damper is fixedly arranged outside the viscous damper, and the viscoelastic damper is fixedly arranged inside the viscous damper.
Specifically, viscous damper includes the container, locates the inside intermediate lamella of container and fills in the inside viscous material of container, container bottom and bottom plate fixed connection, intermediate lamella lower extreme and container bottom fixed connection, intermediate lamella upper end and roof fixed connection.
Optionally, the viscous material is silicone oil or other polymer materials with viscosity.
Specifically, the upper end of the metal damper is fixedly connected with the top plate, and the lower end of the metal damper is fixedly connected with the top end of the container of the viscous damper.
Preferably, the number of the metal dampers is two, and the metal dampers are respectively arranged at two sides of the top end of the viscous damper container.
Preferably, the metal damper is an in-plane bending damper.
Specifically, the viscoelastic damper comprises a middle plate, viscoelastic material layers arranged on two sides of the middle plate and outer clamping plates arranged on two sides of the viscoelastic material layers, wherein the lower ends of the outer clamping plates are fixedly connected with the middle plate.
Optionally, the viscoelastic material layer is a viscoelastic material plate or other polymer material with both viscosity and elasticity.
Preferably, the upper end of the middle plate protrudes out of the viscoelastic material plate, two sides of the protruding part of the upper end of the middle plate are respectively and fixedly provided with an upper clamping plate, the bottom surface of the upper clamping plate is attached to the upper end surface of the viscoelastic material plate, and the upper end of the upper clamping plate is fixedly connected with the top plate.
Preferably, the upper end of the viscoelastic material plate is flush with the upper end of the outer clamping plate, the lower end of the viscoelastic material plate is shorter than the outer clamping plates and the middle plate at two sides so as to form a groove, and a base plate is arranged in the groove and is fixedly connected with the outer clamping plates and the middle plate respectively.
Preferably, the top plate, the bottom plate, the container, the middle plate, the outer clamping plate, the upper clamping plate and the backing plate are all made of metal materials.
Preferably, the top plate, the bottom plate, the middle plate, the outer clamping plate, the upper clamping plate and the backing plate are all made of steel plates, and the container is a steel container.
Correspondingly, the invention also provides a metal-viscous-viscoelastic composite damping wall which comprises an upper beam, a lower beam and the metal-viscous-viscoelastic composite damper, wherein a top plate of the metal-viscous-viscoelastic composite damper is fixedly connected with the upper beam, and a bottom plate of the metal-viscous-viscoelastic composite damper is fixedly connected with the lower beam.
Preferably, a plurality of embedded steel plates are arranged in the upper beam and the lower beam, the top plate of the metal-viscous-viscoelastic composite damper is fixedly connected with the embedded steel plates in the upper beam, and the bottom plate is fixedly connected with the embedded steel plates in the lower beam.
The embodiment of the invention has the following beneficial effects: the rigidity supporting function of the metal damper and the viscoelastic damper is fully exerted in small earthquake; the damping energy consumption characteristics of the viscoelastic damper and the viscous damper are fully exerted in small earthquake, so that the energy consumption capacity in small earthquake is ensured; the damping energy consumption characteristic of the metal damper is fully exerted during a large earthquake, and the energy consumption capacity of the composite damper is not reduced due to the energy consumption attenuation of the viscoelastic damper and the viscous damper during the large earthquake.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions and advantages of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are only some embodiments of the invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of a metal-viscous-viscoelastic composite damping wall according to the present invention.
Wherein, the reference numerals in the figures are as follows:
1-roof 2-floor 3-metal damper
4-viscous damper 41-container 42-intermediate plate
5-viscoelastic damper 51-viscoelastic material plate 52-outer clamping plate
53-backing plate 54-first bolt 55-first nut
56-upper clamping plate 57-second bolt 58-second nut
6-upper beam 7-lower beam 8-embedded steel plate
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings, for the purpose of making the objects, technical solutions and advantages of the present invention more apparent. It will be apparent that the described embodiments are merely one embodiment of the invention, and not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic may be included in at least one implementation of the invention. In the description of the present invention, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "left", "right", "top", "bottom", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may include one or more of the feature, either explicitly or implicitly. Moreover, the terms "first," "second," and the like, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the invention described herein may be implemented in sequences other than those illustrated or otherwise described herein.
Example 1
As shown in fig. 1, a metal-viscous-viscoelastic composite damping wall according to the present invention is provided, wherein the metal-viscous-viscoelastic composite damping wall comprises a top plate 1, a bottom plate 2 and a composite damping body fixedly arranged between the top plate 1 and the bottom plate 2, wherein:
the composite damper main body consists of a metal damper 3, a viscous damper 4 and a viscoelastic damper 5;
the viscous damper 4 comprises a container 41, an intermediate plate 42 arranged in the container and viscous materials filled in the container, wherein the bottom end of the container 41 is welded with the bottom plate 2, the lower end of the intermediate plate 42 is welded with the bottom of the container 41, and the viscous materials filled in the container 41 are silicone oil;
the two metal dampers 3 are arranged, the lower ends of the metal dampers 3 are respectively welded at the two sides of the top end of the container 41 of the viscous damper 4, and the upper ends of the metal dampers 3 are welded with the top plate 1;
the two sides of the middle plate 42 of the viscous damper 4 are symmetrically provided with viscoelastic material plates 51, two sides of the viscoelastic material plates 51 are symmetrically provided with outer clamping plates 52, the viscoelastic material plates 51 are shorter than the outer clamping plates 52, the upper ends of the viscoelastic material plates 51 are flush with the upper ends of the outer clamping plates 52, grooves are formed in the lower ends of the viscoelastic material plates 51 at two sides, backing plates 53 are arranged in the grooves at two sides, the size of the backing plates 53 is matched with that of the grooves, silicone oil can be prevented from contacting the viscoelastic material plates 51, first bolt mounting holes are formed in the same height positions of the backing plates 53 at two sides, the outer clamping plates 52 at two sides and the middle plate 42, the backing plates 53 and the outer clamping plates 52 are fixed on the middle plate 42 through the first bolt 54, and first nuts 55 are fastened on the first bolts 54 at the outer sides of the outer clamping plates 52 at two sides;
the upper end of the middle plate 42 protrudes out of the upper end of the viscoelastic material plate 51, two sides of the protruding part of the upper end of the middle plate are provided with upper clamping plates 56, the bottom surface of each upper clamping plate 56 is attached to the upper end surface of the viscoelastic material plate 51, silicone oil can be prevented from contacting the viscoelastic material plate 51, the same height position of the protruding part of the upper clamping plates 56 and the upper end of the middle plate 42 is provided with second bolt mounting holes, the upper clamping plates 56 are fixed at the upper end of the middle plate 42 by the second bolts 57 penetrating through the second bolt mounting holes, the second nuts 58 are fastened on the second bolts 57 on the outer sides of the upper clamping plates 56 on two sides, and the upper ends of the upper clamping plates 56 on two sides are welded on the top plate 1; the above-described connection structure of the intermediate plate 42, the viscoelastic material plate 51, the outer clamping plate 52, the backing plate 53, and the upper clamping plate 56 together constitute the viscoelastic damper 5.
The top plate 1, the bottom plate 2, the middle plate 42, the outer clamping plate 52, the upper clamping plate 56 and the backing plate 53 are all steel plates, and the container is a steel container.
Example two
As shown in fig. 1, the invention further provides a metal-viscous-viscoelastic composite damping wall, which comprises an upper beam 6, a lower beam 7 and the metal-viscous-viscoelastic composite damper, wherein a plurality of embedded steel plates 8 are arranged in the upper beam 6 and the lower beam 7, a top plate 1 of the metal-viscous-viscoelastic composite damper is fixedly connected with the embedded steel plates 8 in the upper beam 6, and a bottom plate 2 is fixedly connected with the embedded steel plates 8 in the lower beam 7.
Based on the above composite structure, when an earthquake occurs, the viscous damper 4 and the viscoelastic damper 5 will form energy consumption mechanisms preferentially, at this time, the upper beam 6 and the lower beam 7 are dislocated and deformed, the upper end and the lower end of the composite damper are subjected to two pulling forces with opposite directions, the upper clamping plate 56 drives the upper end of the middle plate 42 to move in one direction, the bottom end of the container drives the lower end of the middle plate 42 to move in the opposite direction, the lower end of the middle plate 42 drives the outer clamping plate 52 and the backing plate 53 to move in the same direction along with the upper clamping plate 56, the outer clamping plate 52, the backing plate 53, the middle plate 42 and the viscoelastic material plate 51 all cause friction, and the heat energy generated by friction dissipates the earthquake energy, and because of the large contact area, the friction is also better, so that the damping energy consumption performance of the viscoelastic damper 5 is fully exerted, at this time, the viscoelastic damper 5 also provides a certain rigidity supporting effect; because the container is filled with silicone oil, the parts of the upper clamping plate 56, the outer clamping plate 52, the backing plate 53 and the middle plate 42, which are contacted with the silicone oil, are subjected to shear deformation, the shear deformation dissipates the seismic energy, and the damping energy dissipation performance of the viscous damper 4 is fully exerted because of large contact area and good energy dissipation effect; at this time, the metal damper 3 mainly plays a supporting role.
As the seismic intensity increases, the energy consumption effect of the viscous damper 4 and the viscoelastic damper 5 is poor, and the metal damper 3 exerts a hysteresis energy consumption mechanism due to up-and-down deformation, so that the energy consumption capability of the composite damper under large earthquake is ensured not to be reduced.
While the foregoing is directed to the preferred embodiments of the present invention, it will be appreciated by those skilled in the art that changes and modifications may be made without departing from the principles of the invention, such changes and modifications are also intended to be within the scope of the invention.
Claims (5)
1. The metal-viscous-viscoelastic composite damper comprises a top plate (1), a bottom plate (2) and a composite damper main body, wherein the composite damper main body is fixedly arranged between the top plate (1) and the bottom plate (2), and is characterized in that the composite damper main body comprises a metal damper (3), a viscous damper (4) and a viscoelastic damper (5), the metal damper (3) is fixedly arranged outside the viscous damper (4), and the viscoelastic damper (5) is fixedly arranged inside the viscous damper (4);
the viscous damper (4) comprises a container (41), a middle plate (42) arranged in the container and viscous materials filled in the container (41), wherein the bottom end of the container (41) is fixedly connected with the bottom plate (2), and the lower end of the middle plate (42) is fixedly connected with the bottom of the container (41);
the viscoelastic damper (5) comprises the middle plate (42), viscoelastic material layers arranged on two sides of the middle plate (42) and outer clamping plates (52) arranged on two sides of the viscoelastic material layers, and the lower ends of the outer clamping plates (52) are fixedly connected with the middle plate (42); the viscoelastic material layer is a viscoelastic material plate (51);
the upper end of the middle plate (42) protrudes out of the viscoelastic material plate (51), two sides of the protruding part of the upper end of the middle plate (42) are respectively and fixedly provided with an upper clamping plate (56), the bottom surface of the upper clamping plate (56) is attached to the upper end surface of the viscoelastic material plate (51), and the upper end of the upper clamping plate (56) is fixedly connected with the top plate (1);
the upper end of the metal damper (3) is fixedly connected with the top plate (1), and the lower end of the metal damper is fixedly connected with the top end of the container (41) of the viscous damper (4).
2. A metal-viscous-viscoelastic composite damper according to claim 1, wherein there are two metal dampers (3), and the metal dampers (3) are respectively arranged at two sides of the top end of the container (41) of the viscous damper (4); the viscous material is silicone oil.
3. A metal-viscous-viscoelastic composite damper according to claim 2, wherein the upper end of the viscoelastic material plate (51) is flush with the upper end of the outer clamping plate (52), the lower end of the viscoelastic material plate (51) is shorter than the outer clamping plates (52) and the middle plate (42) on both sides to form a groove, a backing plate (53) is arranged in the groove, and the backing plate (53) is fixedly connected with the outer clamping plates (52) and the middle plate (42) respectively.
4. A metal-viscous-viscoelastic composite damper according to claim 3, wherein the top plate (1), bottom plate (2), container (41), intermediate plate (42), outer clamping plate (52), upper clamping plate (56) and backing plate (53) are all made of metal material.
5. A metal-viscous-viscoelastic composite damping wall, comprising an upper beam (6), a lower beam (7) and the metal-viscous-viscoelastic composite damper according to any one of claims 1-4, wherein a top plate (1) of the metal-viscous-viscoelastic composite damper is fixedly connected with the upper beam (6), and a bottom plate (2) is fixedly connected with the lower beam (7).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810457912 | 2018-05-14 | ||
| CN201810457912X | 2018-05-14 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108798168A CN108798168A (en) | 2018-11-13 |
| CN108798168B true CN108798168B (en) | 2024-03-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810731908.8A Active CN108798168B (en) | 2018-05-14 | 2018-07-05 | Metal-viscous-viscoelastic composite damper and damping wall |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110273555B (en) * | 2019-04-12 | 2021-06-15 | 同济大学建筑设计研究院(集团)有限公司 | Combined energy-dissipation and shock-absorption structure design method and combined energy-dissipation and shock-absorption high-rise building |
| CN110273971A (en) * | 2019-06-28 | 2019-09-24 | 重庆大学 | A kind of displacement with safety device-speed composite damper |
| CN114293676B (en) * | 2021-11-30 | 2024-02-09 | 海南柏森建筑设计有限公司 | Prefabricated assembled energy dissipation and shock absorption shear wall structure and design method thereof |
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| CN103233531A (en) * | 2013-04-11 | 2013-08-07 | 欧进萍 | Assembly-type viscoelastic damping wall |
| CN104405057A (en) * | 2014-11-21 | 2015-03-11 | 同济大学建筑设计研究院(集团)有限公司 | Three-plate type high-energy-consumption viscous damping wall |
| CN205423668U (en) * | 2014-06-02 | 2016-08-03 | 力赛佳股份公司 | Viscoelasticity shock absorber |
| KR101728639B1 (en) * | 2016-09-21 | 2017-04-19 | 주식회사 동양구조이앤알 | Vibration Control Damper Using Rubber |
| CN208564126U (en) * | 2018-05-14 | 2019-03-01 | 南通蓝科减震科技有限公司 | A kind of metal-is viscous-viscoelastic composite buffer and damping wall |
-
2018
- 2018-07-05 CN CN201810731908.8A patent/CN108798168B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103233531A (en) * | 2013-04-11 | 2013-08-07 | 欧进萍 | Assembly-type viscoelastic damping wall |
| CN205423668U (en) * | 2014-06-02 | 2016-08-03 | 力赛佳股份公司 | Viscoelasticity shock absorber |
| CN104405057A (en) * | 2014-11-21 | 2015-03-11 | 同济大学建筑设计研究院(集团)有限公司 | Three-plate type high-energy-consumption viscous damping wall |
| KR101728639B1 (en) * | 2016-09-21 | 2017-04-19 | 주식회사 동양구조이앤알 | Vibration Control Damper Using Rubber |
| CN208564126U (en) * | 2018-05-14 | 2019-03-01 | 南通蓝科减震科技有限公司 | A kind of metal-is viscous-viscoelastic composite buffer and damping wall |
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| CN108798168A (en) | 2018-11-13 |
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