WO2002008631A2 - Light transmission damper - Google Patents

Light transmission damper Download PDF

Info

Publication number
WO2002008631A2
WO2002008631A2 PCT/US2001/023081 US0123081W WO0208631A2 WO 2002008631 A2 WO2002008631 A2 WO 2002008631A2 US 0123081 W US0123081 W US 0123081W WO 0208631 A2 WO0208631 A2 WO 0208631A2
Authority
WO
WIPO (PCT)
Prior art keywords
damper
support members
light transmission
vibration absorbing
absorbing member
Prior art date
Application number
PCT/US2001/023081
Other languages
French (fr)
Other versions
WO2002008631A3 (en
Inventor
Kiyoshi Okuma
Shingo Amari
Original Assignee
3M Innovative Properties Company
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 3M Innovative Properties Company filed Critical 3M Innovative Properties Company
Publication of WO2002008631A2 publication Critical patent/WO2002008631A2/en
Publication of WO2002008631A3 publication Critical patent/WO2002008631A3/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F1/00—Springs
    • F16F1/36—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers
    • F16F1/40—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers consisting of a stack of similar elements separated by non-elastic intermediate layers

Definitions

  • the present invention relates to a damper, and in particular to a damper or what is called a “damping unit” for protecting the architecture and structure such as a house, a building, a bridge and a gas tank (hereinafter referred to collectively as “the structure or the like") against the vibrations caused by the strong wind, the earthquake, etc.
  • the Japanese Examined Patent Publication (KOKOKU) No. 51-1932 discloses a damping unit for the structure or the like subjected to subsonic vibrations, characterized in that at least two rigid members having a larger rigidity than a steel plate of 2.5 mm thick are separated by a layer of a visco-elastic material firmly bonded to the surface of the members.
  • the damping unit of this type is normally used as a part of the structural elements suspended over predetermined parts of the structure or the like and configured as shown in Fig. 1, for example.
  • the conventional damping unit 1 is configured with two T-shaped flange members 2a, 2b making up support members and an intermediate member (center plate) 3 arranged in position between them. Layers 4a and 4b of a visco-elastic material are arranged between the flange member 2a and the intermediate member 3 and between the flange member 2b and the intermediate member 3, respectively.
  • the flange members and the intermediate member are configured of a steel plate, and the layers of the visco-elastic material are composed of a copolymer or the like visco-elastic material such as polyether polyurethane or alkyl acrylate and one or more types of acryl monomers such as acrylic acid or acrylamide.
  • the damping unit 1 is used to connect two points of the structure or the like as shown in Fig. 2.
  • the shown example is a case in which the damping unit 1 is installed through bolts between the pole 5 of the external wall of an upper stair of a high- rise building and a truss 7 fastened structurally to the pole 5 substantially at the same level as the floor 6.
  • the layer of the visco-elastic material can be subjected to shear deformation along the thickness thereof when the particular parts are vibrated by an earthquake or a strong wind, and therefore the vibrations can be attenuated to a low level.
  • the support members 2 and the intermediate member 3 are both composed of an opaque steel plate and arranged only at invisible parts such as under the floor of the structure or the like.
  • an additional action such as covering is taken in order not to spoil the appearance.
  • the damping unit may be required to be installed in the neighborhood of the window glass thereby posing the problem that the sunlight or the external field of view is blocked.
  • the conventional damping unit is opaque as a whole, and is not supposed to be installed in the parts requiring light transmission, thereby limiting the places of the installation thereof.
  • a visco-elastic material such as acryl high in light transmission is used as a vibration absorbing member
  • the conventional damping unit is not configured to make the most of the light transmission property.
  • the object of the present invention is to obviate the restraints of the conventional damping unit and provide a light transmission damper that can be installed freely at various parts.
  • a damper comprising a vibration absorbing member held between two opposed support members, wherein the support members are configured with a light transmission material and the vibration absorbing member is configured with a light transmission visco- elastic material or a viscous material thereby to make a light transmission whole damper.
  • Fig. 1 is a perspective view showing a conventional damper.
  • Fig. 2 is a side view showing an application of the conventional damper to the structure or the like.
  • Fig. 3 is a sectional view showing an example of the damper according to the invention.
  • Fig. 4 is a sectional view showing an example of the damper according to the invention.
  • Fig. 5 is a perspective view showing an example of the damper according to the invention.
  • Fig. 6 is a sectional view showing an example of the damper according to the invention.
  • Fig. 7 is a side view showing an application of the damper according to the invention to the structure or the like.
  • Fig. 8 is a side view showing the damper according to the invention used as a partitioning wall.
  • Fig. 9 is a side view showing the damper according to the invention used as a brace.
  • Fig. 10 is a side view showing the damper according to the invention used as a window pane.
  • a damper according to the invention is so configured that a vibration absorbing member is held between two opposed support members, which is a structure similar to the conventional damper (damping unit). Also, the sandwich structure including a single set of two support members and a vibration absorbing member may alternatively be configured with two or more sets.
  • the support members are required to be formed of a light transmission material in order to secure the light transmission of the whole damper. Further, this damper, when installed on the structure or the like, must not adversely affect the strength of the structure or the like and the damper property and therefore is preferably formed of a tough material.
  • a preferable material of the support members is glass, plastic (such as an acryl plate), etc.
  • the light transmission of the support members can be arbitrarily changed in accordance with the parts where the damper is installed or the desired appearance.
  • the support members of various transmittance can be used ranging from transparent glass having a substantially 100 % of transmittance to obscure glass or frosted glass not transparent but light transmission.
  • various shapes and sizes of the support members fitting the shape of the damper can be employed according to whether the damper is parallelepipedic, tabular, hollow cylindrical or solid cylindrical. In the case where the damper is parallelepipedic or tabular, for example, tabular support members can be used. In the case of a solid or hollow cylindrical damper, on the other hand, hollow or annular support members can be used.
  • the vibration absorbing member is composed of a visco-elastic or viscous material exhibiting the effect of attenuating by the elastic deformation the vertical or horizontal vibrations and oscillations applied to the damper due to the wind or the earthquake.
  • This visco-elastic or viscous material is also required to be a light transmission material in order to secure the light transmission of the whole damper.
  • the visco-elastic material is required to have a shearing strain of at least 10 % when measured in the period of one cycle and the loss tangent of at least 3.
  • acrylic materials such as copolymers including acrylic acid or acrylamide, silicon materials such as methyl vinyl silicone, urethane materials such as polyether urethane or polyester urethane, polyvinyl chloride materials, butane materials or butyl materials.
  • the commercially available products such as VEM Type 110, Type 111, Type 112 or Type 113 of Sumitomo 3M can be used as the visco-elastic material.
  • a preferable viscous material has a viscosity of 10 poise or more as measured by the Brookfield rotational viscometer, the rotor No. 7, and specifically includes an acrylic fluid, a silicon fluid, an urethane fluid, a polyvinyl chloride fluid, butane fluid or butyl fluid.
  • Fig. 3 shows a preferred embodiment of the damper according to the invention.
  • This damper 8 is configured with tabular support members 9a, 9b and a vibration absorbing member 10 sandwiched between the tabular members.
  • the vibration absorbing member 10 is formed of a solid visco-elastic material. This visco-elastic material has a stickiness and therefore can produce a sufficient adhesion by contact with the support members. In some cases, however, the vibration absorbing member and the support members can be bonded to each other by use of a transparent adhesive such as polyvinyl, urethane or cyano acrylate. Also, as shown in Fig.
  • a more preferable damper comprises three or more tabular support members 9a, 9b, 9c and each of tabular vibration absorbing members 10a, 10b held between each pair of the tabular support members.
  • the number of the tabular support members is widely variable in accordance with the parts where the damper is used or the desired effects and the upper limit of the number is not specifically defined.
  • Fig. 5 shows a damper according to another embodiment of the invention.
  • the damper 11 comprises two support members including a hollow cylindrical member 12a and a solid cylindrical member 12b, and a cylindrical vibration absorbing member 13 closely held between the support members.
  • the dampers described above use a solid visco-elastic material for the vibration- absorbing member and may alternatively use a fluid viscous material.
  • the vibration absorbing member 15 made of a fluid viscous material is placed in a support member bath 14a, and a tabular support member 14b is inserted into the vibration absorbing member thereby to constitute a damper 16 according to the invention.
  • the damper according to the invention is formed of support members of a light transmission material, and a vibration absorbing member also of a light transmission material.
  • the damper according to the invention can be installed in proximity to the window glass as shown in Fig. 2 without posing any problem unlike in the damper according to the prior art.
  • the damper 18 according to the invention can be installed as a window pane or a glass wall in the space defined by poles 21 and beams 17, by fixing the support member 19 to the floor-side beam 17 and the other support member 20 to the ceiling-side beam 17 with, say, bolts or an adhesive.
  • the damper is used as a partitioning wall, as a brace apart from the window glass and as window glass, and as a window pane incorporated as an interior, respectively.
  • a steel plate is used for the support members of the conventional damper. This often spoils the appearance, and therefore the installation is limited to invisible places such as under the floor.
  • the damper according to the invention in contrast, does not obstruct the view, and the support members thereof can be variously designed with various colors and patterns. Therefore, the appearance is not spoiled and the dampers can be installed at various parts distributively, thereby making it possible to make the most of the residential space.
  • the damper according to the invention is light transmission as a whole, and therefore can be installed at various parts without blocking the light including the sunlight and illumination or obstructing the view.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Buildings Adapted To Withstand Abnormal External Influences (AREA)
  • Vibration Prevention Devices (AREA)
  • Fluid-Damping Devices (AREA)

Abstract

To provide a vibration damper that can be installed at any place.A damper (8) comprising two opposed support members (9a, 9b) and a vibration absorbing member (10) sandwiched between the support members (9a, 9b), in which the support members are configured of a light transmission material and the vibration absorbing member (10) is configured of a light transmission visco-elastic material or a viscous material thereby to make up a damper light transmission as a whole.

Description

LIGHT TRANSMISSION DAMPER The present invention relates to a damper, and in particular to a damper or what is called a "damping unit" for protecting the architecture and structure such as a house, a building, a bridge and a gas tank (hereinafter referred to collectively as "the structure or the like") against the vibrations caused by the strong wind, the earthquake, etc.
Background of the Invention Conventionally, various types of dampers have been proposed for protecting the structure or the like from the vibrations caused by the strong wind, the earthquake or the like. For example, the Japanese Examined Patent Publication (KOKOKU) No. 51-1932 discloses a damping unit for the structure or the like subjected to subsonic vibrations, characterized in that at least two rigid members having a larger rigidity than a steel plate of 2.5 mm thick are separated by a layer of a visco-elastic material firmly bonded to the surface of the members. The damping unit of this type is normally used as a part of the structural elements suspended over predetermined parts of the structure or the like and configured as shown in Fig. 1, for example.
Specifically, the conventional damping unit 1 is configured with two T-shaped flange members 2a, 2b making up support members and an intermediate member (center plate) 3 arranged in position between them. Layers 4a and 4b of a visco-elastic material are arranged between the flange member 2a and the intermediate member 3 and between the flange member 2b and the intermediate member 3, respectively. In this conventional damping unit, the flange members and the intermediate member are configured of a steel plate, and the layers of the visco-elastic material are composed of a copolymer or the like visco-elastic material such as polyether polyurethane or alkyl acrylate and one or more types of acryl monomers such as acrylic acid or acrylamide. The damping unit shown in Fig. 1 is used to connect two points of the structure or the like as shown in Fig. 2. The shown example is a case in which the damping unit 1 is installed through bolts between the pole 5 of the external wall of an upper stair of a high- rise building and a truss 7 fastened structurally to the pole 5 substantially at the same level as the floor 6. In the case where the damping unit is installed as shown at predetermined parts of the structure or the like, the layer of the visco-elastic material can be subjected to shear deformation along the thickness thereof when the particular parts are vibrated by an earthquake or a strong wind, and therefore the vibrations can be attenuated to a low level.
Problem to be Solved by the Invention
In the damping unit described above, however, the support members 2 and the intermediate member 3 are both composed of an opaque steel plate and arranged only at invisible parts such as under the floor of the structure or the like. In the case where the installation of the damping unit at visible parts is required, on the other hand, an additional action such as covering is taken in order not to spoil the appearance. Further, in the quake-resistant construction work of the structure or the like, the damping unit may be required to be installed in the neighborhood of the window glass thereby posing the problem that the sunlight or the external field of view is blocked.
As described above, the conventional damping unit is opaque as a whole, and is not supposed to be installed in the parts requiring light transmission, thereby limiting the places of the installation thereof. Although a visco-elastic material such as acryl high in light transmission is used as a vibration absorbing member, the conventional damping unit is not configured to make the most of the light transmission property. The object of the present invention is to obviate the restraints of the conventional damping unit and provide a light transmission damper that can be installed freely at various parts. Summary of the Invention According to this invention, in order to solve the above-mentioned problem, there is provided a damper comprising a vibration absorbing member held between two opposed support members, wherein the support members are configured with a light transmission material and the vibration absorbing member is configured with a light transmission visco- elastic material or a viscous material thereby to make a light transmission whole damper.
Brief Description of the Drawings Fig. 1 is a perspective view showing a conventional damper. Fig. 2 is a side view showing an application of the conventional damper to the structure or the like.
Fig. 3 is a sectional view showing an example of the damper according to the invention.
Fig. 4 is a sectional view showing an example of the damper according to the invention.
Fig. 5 is a perspective view showing an example of the damper according to the invention.
Fig. 6 is a sectional view showing an example of the damper according to the invention. Fig. 7 is a side view showing an application of the damper according to the invention to the structure or the like.
Fig. 8 is a side view showing the damper according to the invention used as a partitioning wall.
Fig. 9 is a side view showing the damper according to the invention used as a brace. Fig. 10 is a side view showing the damper according to the invention used as a window pane.
Detailed Description of the Preferred Embodiment A damper according to the invention is so configured that a vibration absorbing member is held between two opposed support members, which is a structure similar to the conventional damper (damping unit). Also, the sandwich structure including a single set of two support members and a vibration absorbing member may alternatively be configured with two or more sets. The support members are required to be formed of a light transmission material in order to secure the light transmission of the whole damper. Further, this damper, when installed on the structure or the like, must not adversely affect the strength of the structure or the like and the damper property and therefore is preferably formed of a tough material. A preferable material of the support members is glass, plastic (such as an acryl plate), etc. The light transmission of the support members can be arbitrarily changed in accordance with the parts where the damper is installed or the desired appearance. The support members of various transmittance can be used ranging from transparent glass having a substantially 100 % of transmittance to obscure glass or frosted glass not transparent but light transmission. Further, various shapes and sizes of the support members fitting the shape of the damper can be employed according to whether the damper is parallelepipedic, tabular, hollow cylindrical or solid cylindrical. In the case where the damper is parallelepipedic or tabular, for example, tabular support members can be used. In the case of a solid or hollow cylindrical damper, on the other hand, hollow or annular support members can be used. The vibration absorbing member is composed of a visco-elastic or viscous material exhibiting the effect of attenuating by the elastic deformation the vertical or horizontal vibrations and oscillations applied to the damper due to the wind or the earthquake. This visco-elastic or viscous material is also required to be a light transmission material in order to secure the light transmission of the whole damper. The visco-elastic material is required to have a shearing strain of at least 10 % when measured in the period of one cycle and the loss tangent of at least 3. Specifically, acrylic materials such as copolymers including acrylic acid or acrylamide, silicon materials such as methyl vinyl silicone, urethane materials such as polyether urethane or polyester urethane, polyvinyl chloride materials, butane materials or butyl materials. The commercially available products such as VEM Type 110, Type 111, Type 112 or Type 113 of Sumitomo 3M can be used as the visco-elastic material. A preferable viscous material, on the other hand, has a viscosity of 10 poise or more as measured by the Brookfield rotational viscometer, the rotor No. 7, and specifically includes an acrylic fluid, a silicon fluid, an urethane fluid, a polyvinyl chloride fluid, butane fluid or butyl fluid.
Fig. 3 shows a preferred embodiment of the damper according to the invention. This damper 8 is configured with tabular support members 9a, 9b and a vibration absorbing member 10 sandwiched between the tabular members. The vibration absorbing member 10 is formed of a solid visco-elastic material. This visco-elastic material has a stickiness and therefore can produce a sufficient adhesion by contact with the support members. In some cases, however, the vibration absorbing member and the support members can be bonded to each other by use of a transparent adhesive such as polyvinyl, urethane or cyano acrylate. Also, as shown in Fig. 4, a more preferable damper comprises three or more tabular support members 9a, 9b, 9c and each of tabular vibration absorbing members 10a, 10b held between each pair of the tabular support members. The number of the tabular support members is widely variable in accordance with the parts where the damper is used or the desired effects and the upper limit of the number is not specifically defined.
Fig. 5 shows a damper according to another embodiment of the invention. The damper 11 comprises two support members including a hollow cylindrical member 12a and a solid cylindrical member 12b, and a cylindrical vibration absorbing member 13 closely held between the support members.
The dampers described above use a solid visco-elastic material for the vibration- absorbing member and may alternatively use a fluid viscous material. As shown in Fig. 6, for example, the vibration absorbing member 15 made of a fluid viscous material is placed in a support member bath 14a, and a tabular support member 14b is inserted into the vibration absorbing member thereby to constitute a damper 16 according to the invention.
The damper according to the invention is formed of support members of a light transmission material, and a vibration absorbing member also of a light transmission material. Thus, the whole damper is light transmission. Even with the same configuration as the conventional damper shown in Fig. 1, therefore, the damper according to the invention can be installed in proximity to the window glass as shown in Fig. 2 without posing any problem unlike in the damper according to the prior art. Also, as shown in Fig. 1, the damper 18 according to the invention can be installed as a window pane or a glass wall in the space defined by poles 21 and beams 17, by fixing the support member 19 to the floor-side beam 17 and the other support member 20 to the ceiling-side beam 17 with, say, bolts or an adhesive. Figs. 8, 9 and 10 show specific applications in which the damper is used as a partitioning wall, as a brace apart from the window glass and as window glass, and as a window pane incorporated as an interior, respectively. A steel plate is used for the support members of the conventional damper. This often spoils the appearance, and therefore the installation is limited to invisible places such as under the floor. The damper according to the invention, in contrast, does not obstruct the view, and the support members thereof can be variously designed with various colors and patterns. Therefore, the appearance is not spoiled and the dampers can be installed at various parts distributively, thereby making it possible to make the most of the residential space.
The damper according to the invention is light transmission as a whole, and therefore can be installed at various parts without blocking the light including the sunlight and illumination or obstructing the view.

Claims

IT IS CLAIMED:
1. A light transmission damper comprising a vibration absorbing member held between two opposed support members, said support members are composed of a light transmission material and said vibration absorbing member is composed of a visco-elastic material or a viscous material.
2. A damper as described in claim 1, wherein said vibration absorbing member is made of a solid visco-elastic material.
3. A damper as described in claim 1 or 2, wherein said support members are tabular and said vibration absorbing member is held between said tabular support members.
4. A damper as described in claim 3, comprising three or more tabular support members, wherein a tabular vibration absorbing member is held between each pair of said tabular support members.
5. A damper as described in claim 1, wherein said support members are a hollow cylindrical member and a solid cylindrical member, wherein a hollow cylindrical vibration absorbing member is held between said support members.
6. A damper as described in claim 1, wherein said vibration absorbing member is made of a fluid viscous material.
7. A damper as described in claim 6, wherein said fluid viscous material is encased in a bath-shaped support member, and a tabular support member is inserted into said fluid viscous material from the opening of said support member bath.
PCT/US2001/023081 2000-07-24 2001-07-20 Light transmission damper WO2002008631A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2000227560A JP2002054681A (en) 2000-07-24 2000-07-24 Light-transmissive damper
JP2000-227560 2000-07-24

Publications (2)

Publication Number Publication Date
WO2002008631A2 true WO2002008631A2 (en) 2002-01-31
WO2002008631A3 WO2002008631A3 (en) 2003-11-06

Family

ID=18720984

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2001/023081 WO2002008631A2 (en) 2000-07-24 2001-07-20 Light transmission damper

Country Status (3)

Country Link
JP (1) JP2002054681A (en)
TW (1) TW514692B (en)
WO (1) WO2002008631A2 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4341130A (en) * 1978-05-22 1982-07-27 Wallace Murray Corporation Dust and oil slinger
DE3304580A1 (en) * 1983-02-10 1984-08-16 Daimler-Benz Ag, 7000 Stuttgart Load-bearing oscillation-damping rubber/metal component made of a cross-linked elastomer
EP0694709A1 (en) * 1994-07-28 1996-01-31 Trw Inc. Composite damping structures and related method
WO1996021560A2 (en) * 1995-01-13 1996-07-18 Minnesota Mining And Manufacturing Company Damped laminates with improved fastener force retention, a method of making, and novel tools useful in making
US6021992A (en) * 1997-06-23 2000-02-08 Taichung Machinery Works Co., Ltd. Passive vibration isolating system

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0655458B2 (en) * 1989-06-16 1994-07-27 東洋ゴム工業株式会社 Method of manufacturing vibration-proof support
JPH04246448A (en) * 1991-01-31 1992-09-02 Toyoda Gosei Co Ltd Rubber vibration isolator

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4341130A (en) * 1978-05-22 1982-07-27 Wallace Murray Corporation Dust and oil slinger
DE3304580A1 (en) * 1983-02-10 1984-08-16 Daimler-Benz Ag, 7000 Stuttgart Load-bearing oscillation-damping rubber/metal component made of a cross-linked elastomer
EP0694709A1 (en) * 1994-07-28 1996-01-31 Trw Inc. Composite damping structures and related method
WO1996021560A2 (en) * 1995-01-13 1996-07-18 Minnesota Mining And Manufacturing Company Damped laminates with improved fastener force retention, a method of making, and novel tools useful in making
US6021992A (en) * 1997-06-23 2000-02-08 Taichung Machinery Works Co., Ltd. Passive vibration isolating system

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
DATABASE WPI Section Ch, Week 199110 Derwent Publications Ltd., London, GB; Class A35, AN 1991-070308 XP002189011 A: -& JP 03 019835 A (TOYO RUBBER IND CO LTD) , 29 January 1991 (1991-01-29) *
DATABASE WPI Section Ch, Week 199242 Derwent Publications Ltd., London, GB; Class A18, AN 1992-343510 XP002189012 -& JP 04 246448 A (TOYODA GOSEI KK), 2 September 1992 (1992-09-02) *

Also Published As

Publication number Publication date
TW514692B (en) 2002-12-21
WO2002008631A3 (en) 2003-11-06
JP2002054681A (en) 2002-02-20

Similar Documents

Publication Publication Date Title
JP4308346B2 (en) Damper
US20010023562A1 (en) Building glass facade of a building, a clamping arrangement for holding glass panels in a glass facade of a building, a brace to hold safety glass panels in a glass facade of a building, and a brace to hold safety glass panels
KR101000206B1 (en) Windows system having earthquake-proof performance
TR28829A (en) Earthquake, wind and fire resistant building / construction panels and structures made of them.
EP1185134A2 (en) Facing system for a flat panel radiator
KR101897509B1 (en) Supporting Structure of Hidden Type Curtain Wall
US6546690B1 (en) Glass structural element for constructing a preferably self supporting wall, roof or ceiling section or element
KR102100156B1 (en) Vibration isolation system for Windows
WO2002008631A2 (en) Light transmission damper
KR101120502B1 (en) A Jointing Mechanism For Connecting Transparency Panels And A Sound Proofing Wall Comprising The Jointing Mechanism
JP3625392B2 (en) Translucent soundproof board and soundproof wall using the same
EP3914785A1 (en) Building, in particular a multistory building, and use of a damper in such a building
Gillengerten Design of nonstructural systems and components
JP4533116B2 (en) Damping wall
CA2173811A1 (en) Sound attenuating structure
KR102240604B1 (en) Bonding System For Curtain-Wall Frame and Method Thereof
JPH03209033A (en) Damping device
JP2000179180A (en) Apartment house
ITMI971702A1 (en) SOUND ABSORPTION SOUND ABSORBING PANEL FOR RESONANCE AND PROCEDURE FOR ADJUSTING THE RESONANCE FREQUENCY OF THE SAME
JP3844331B2 (en) Translucent soundproof board and soundproof wall using the same
KR102482069B1 (en) Fixing Device for Building Exterior with Seismic Resistance
CA2843712A1 (en) Arrangement and method for retrofitting glass wall panel system with glass wall panel
KR102521346B1 (en) Fixing Device for Building Exterior with Vibration Transmission Blocking Part
EP0441759A1 (en) Vaulted acoustic element
CN217652449U (en) Spliced mobile laboratory

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A2

Designated state(s): KR SG US

DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)