KR20160122488A - Slab vibration reduction device for structure with slab - Google Patents

Slab vibration reduction device for structure with slab Download PDF

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Publication number
KR20160122488A
KR20160122488A KR1020150052439A KR20150052439A KR20160122488A KR 20160122488 A KR20160122488 A KR 20160122488A KR 1020150052439 A KR1020150052439 A KR 1020150052439A KR 20150052439 A KR20150052439 A KR 20150052439A KR 20160122488 A KR20160122488 A KR 20160122488A
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South Korea
Prior art keywords
vibration
arm member
spring
fixing means
elastic body
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KR1020150052439A
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Korean (ko)
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KR101672128B1 (en
Inventor
지용수
이찬영
고용성
권세곤
김재왕
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한국철도공사
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Priority to KR1020150052439A priority Critical patent/KR101672128B1/en
Publication of KR20160122488A publication Critical patent/KR20160122488A/en
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Publication of KR101672128B1 publication Critical patent/KR101672128B1/en

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    • 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
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
    • 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
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
    • F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Vibration Prevention Devices (AREA)
  • Buildings Adapted To Withstand Abnormal External Influences (AREA)
  • Bridges Or Land Bridges (AREA)

Abstract

Disclosed is a vibration reduction device which reduces vibrations of a structure and prevents vibrations from transmitting by changing a vibration characteristic of the conventional slab, shortening vibration transmitting paths, and interposing a vibration-proof elastic body between the transmitting paths, easily applies to the existing structures and new built structures and adjusts kinds and numbers of applied vibration-proof elastic bodies, and installation numbers of the vibration reduction devices, such that a vibration-proof performance is easily controlled and designed. The vibration reduction device comprises: a fixing means which has a rotating support unit and is fixed on one part of a structure; an arm member which is supported by the rotating support unit to be able to rotate; a vibration-proof elastic body which is installed on the arm member at a distance away from the rotating support unit and comes in contact with a vibrator; and an arm member rotating pressure means which is installed on the fixing means or a neighboring structure where the fixing means is installed, and applies forces for pulling or pushing the arm member in one rotating direction, such that the vibration-proof elastic body is pressed to the vibrator.

Description

Technical Field [0001] The present invention relates to a slab vibration reduction device,

The present invention relates to an improvement of a vibration damping device, and more particularly, to a slab vibration damping device of a structure that can be suitably used for damping vibration of a slab of a vibration generating structure such as a ship's ship's history.

Various devices have been developed and used to attenuate vibrations generated in railway underground structures and slab structures in bridges. Conventional vibration damping devices include a structure in which an elastic body is provided between two structures, and a structure in which a cylinder mechanism in which a viscous fluid is embedded between two structures is used.

For example, Japanese Patent Application Laid-Open No. 10-2009-0033686 (entitled: Dust Damper, Inventor: Son Ki-Taek) discloses a cylinder, a pair of pistons for partitioning the interior of the cylinder into a plurality of spaces, A piston rod that is rotatably coupled to the bridge pier or the upper structure and the other end is formed integrally with the piston, a plurality of second cushioning materials sandwiched between the piston rods, and a second cushioning material sandwiched between the second cushioning material Quot; cover "which seals both ends of the lid washer and the open cylinder.

The conventional vibration reduction device as described above is installed between two separate structures to damp vibrations while buffering impacts and to suppress transmission of vibration to other structures. It has no function to attenuate.

There are some heavy vibrators used to reduce the amplitude of high-rise buildings themselves, but this can not be used to reduce the vibrations of the bridge structure itself with slabs extending sideways from the top of the beams and beams.

It is an object of the present invention to provide a vibration damping device suitable for use as a slab vibration damping device of a structure capable of vibration damping by adjusting vibration characteristics of existing structure slabs through simple installation.

It is another object of the present invention to provide a vibration reduction device that can be installed between two separated structures, and can be installed in an integral structure to damp vibration of a structure itself.

Another object of the present invention is to provide a vibration damping device which can be suitably used to reduce vibration of an integral structure having a slab extending laterally at one end of a beam.

It is still another object of the present invention to provide a vibration damping device capable of adjusting vibration damping characteristics.

It is still another object of the present invention to provide a vibration damping device having a double vibration damping function.

The vibration damping device according to the present invention includes fixing means for fixing the vibration damping device to a part of the structure, An arm member rotatably supported on the pivot support portion; A vibration-proof elastic body provided on the arm member at a position spaced apart from the pivotal support portion and contacting the vibrating body; And an arm member pivoting and pressing means installed on a peripheral structure provided with the fixing means or the fixing means to apply a force for pulling or pushing the arm member in the direction of one rotation so as to press the vibration- .

It is preferable that a fixing plate is provided at an end of the arm member and the vibration-proof elastic body is provided on the fixing plate.

And the arm member pivotal pressing means may include a spring for elastically urging the arm member in the one rotation direction.

The arm member pivoting and pressing means is provided on a spring for urging the arm member in an elastic direction in the one rotation direction, a peripheral structure in which the fixing means or the fixing means is installed, and the spring is pulled in the one rotation direction It is preferable to include a spring supporting member for pushing.

Wherein the arm member is provided with a through hole and the arm member pivotal pressing means is provided on a peripheral structure provided with a spring provided on one side of the arm member of the portion where the through hole is formed and the fixing means or the fixing means, And a pressing member provided on an end of the rod member passing the spring and the rod member passing through the spring and pressing the spring toward the arm member.

The pressing member may be screwed to the rod member so as to adjust a pressing force of the spring.

Preferably, the arm member is formed with a spring receiving groove for receiving at least a part of the spring.

The vibration reduction device according to the present invention having the above-described structure can reduce vibrations by increasing a point having an attenuation value in the process of transmitting the beam vibration to the slab.

Further, the present invention damps vibration of a structure by bringing a vibration-resistant body having a damping characteristic into contact with a plate-shaped vibrating body.

According to the present invention, the vibration characteristics of the existing slab are changed, the vibration transmission path is made shorter, and the vibration-proof elastic body is disposed between the transmission paths, thereby attenuating vibration of the structure and suppressing transmission of vibration.

The vibration damping device according to the present invention can be easily applied to existing structures and newly constructed structures, and it is possible to easily design the vibration damping performance by adjusting the types and number of applied vibration damping elastic bodies and the installed quantity of vibration damping devices.

According to the present invention, the force to be applied to the vibration-proof elastic body can be adjusted, so that the construction can be carried out according to the site, and the vibration-proof characteristic can be adjusted according to the change in the condition after installation.

According to the present invention, not only the vibration isolation function can be installed between the two separated structures, but also the vibrations can be damped in a part where vibration is relatively generated by being installed in the integral structure.

1 is a perspective view showing a state in which a vibration reduction device suitable for use in a slab vibration reduction device of a structure is installed in a structure having a beam and a slab,
2 is an exploded perspective view of a vibration reduction device suitable for use in a slab vibration reduction device of a structure according to the present invention,
3 is a front view showing another example of the vibration reduction structure according to the present invention,
4 and 5 are views showing modifications of the vibration damping device according to the present invention, respectively.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a perspective view showing a state in which a vibration reduction device suitable for use in a slab vibration reduction device of a structure is installed on a structure having a beam and a slab, and FIG. 2 is a perspective view Fig. 2 is an exploded perspective view of the vibration reduction device.

1 and 2, the vibration damping device 100 according to the present invention is provided with a fixing means 110. [ The fixing means 110 is a portion fixed to the beam 12 or the like of the structure 10 through an anchor bolt 111 or an anchor nut. In this embodiment, the structure 10 shows a beam 12 and a slab 14 extending sideways from the top of the beam 12. A structure 10 of this structure is often used for a bridge structure. The fixing means 110 has a rotation support portion 112. It is preferable that the fixing means 110 is provided with a pivot support portion 112 on a base plate 114 through which an anchor bolt 111 or the like can pass.

The vibration reduction apparatus 100 according to the present invention includes an arm member 130 rotatably supported by a pivot support portion 112. As the arm member 130, a steel strut is suitable. The arm member 130 is rotatably mounted to the fixing means 110 via a pin P. The upper end of the arm member 130 is preferably provided with a fixing plate 132. The fixing plate 132 is for mounting the vibration-proof elastic body 150 described later.

A through hole 134 is formed in the arm member 130 between both ends and a spring receiving groove 136 is formed on an outer surface of a portion where the through hole 134 is opened. The spring receiving groove 136 is for accommodating at least a part of the spring 172 described later. 2, the surface of the spring receiving groove 136, which is in contact with the spring 172, is formed as a vertical surface. The inner surface of the spring 172 may be formed to be inclined at the same inclination as the surface of the arm member 130, instead of forming the vertical surface.

A vibration-proof elastic body (150) is provided on a fixing plate (132) provided at an upper end of the arm member (130) at a position spaced apart from the rotation supporting portion (112). The vibration-proof elastic body 150 is preferably for contacting the plate-shaped vibrating body such as the slab 14 to attenuate vibration. The vibration-absorbing elastic body 150 is preferably made of elastic rubber or polyurethane disk, . Preferably, the vibration-proof elastic body 150 is maintained in a non-bonded state to the surface of the plate-shaped vibrating body such as the slab 14. [

The vibration damping device (100) according to the present invention is equipped with the arm member pivotal pressing means (170). The arm member pivoting and pressing means 170 serves to apply a force to pull or push the arm member 130 in one rotation direction so that the vibration-proof elastic body 150 is pressed against the plate-like vibrating body such as the slab 14. [ The arm-member pivoting and pressing means 170 is preferably installed on the fixing means 110, but may be provided on a peripheral structure on which the fixing means 110 is installed.

The arm member pivoting and pressing means 170 preferably includes a spring 172 for elastically urging the arm member 130 in the direction of one rotation and a fixing means 110 or a fixing means 110 And a spring support portion 174 installed on the peripheral structure for pulling or pushing the spring 172 in the one rotation direction. MER springs made of polyurethane are suitable for the springs, and other elastomers or rubbers can be used instead of polyurethane. Needless to say, a coil spring or the like may be used at times.

The arm member 130 is provided with a through hole and the arm member rotating and pressing means 170 is provided with a spring 172, a fixing means 110 or a spring 160 provided on one side surface of the arm member 130, A spring member 174a provided at a peripheral structure in which the fixing means 110 is installed and passing through the through hole and the spring 172 and a spring member 174a provided at the end of the rod member 174a passing through the spring 172, And a pressing member 174b that presses the arm member 130 toward. It is more preferable that the pressing member 174b is screwed to the rod member 174a so as to be able to adjust the pressing force of the spring 172. [

1, the arm member pivoting and pressing means 170 is pulled toward the fixing means 110. However, when the arm member 130 is supported by other structures and the like, the outer surface of the arm member 130 is pushed in the direction of one rotation . It is only required that the arm member 130 is subjected to a force of rotation in one rotation direction.

A tension coil spring or the like may be provided between the fixing member 110 and the facing portion of the arm member 130 without forming a through hole in the arm member 130 so that the arm member 130 is elastically So as to serve as the arm-member pivoting and pressing means 170. The outer surface of the arm member 130 may be surrounded and pulled toward the fixing means 110.

That is to say, by applying a force in the direction of one rotation to the arm member 130 in which the arm member pivoting and pressing means 170 is rotatably installed, the vibration-proof elastic body 150 is elastically pressed against the slab 14 And attenuates the generated vibration. The vibration transmitted to the beam 12 through the arm member 130 is attenuated. Further, the arm member 130 makes the vibration transmission path shorter.

The vibration damping device 100 according to the present invention can be applied not only to the new structure but also to the existing structure. The vibration damping elastic body 150 can be easily installed in the vibration damping device 100 by adjusting the type and number of the vibration damping elastic body 150, Performance can be easily adjusted.

The vibration reduction apparatus 100 according to the present invention can adjust the degree of the screwing of the pressing member 174b so as to adjust the force that the vibration insulating elastic body 150 is pressed against the vibrating body such as the slab 14, And it is possible to easily adjust the dustproof characteristic according to the change of the environment after installation.

As shown in FIG. 2, the structure 10 in which the vibration damping device 100 according to the present invention is installed is a kind of vibration damping structure 200, which generates less vibrations than conventional conventional bridge structures, have.

3 is a front view showing another example of the vibration reduction structure according to the present invention.

The vibration reduction device 100 according to the present invention is installed in the lattice structure 20 in which the beam 12 and the slab 14 are continuously provided with a space therebetween to constitute the vibration reduction structure 202 according to the present invention can do.

The rest is the same as described above.

4 and 5 are views showing modifications of the vibration damping device according to the present invention, respectively.

4, a screw may be formed in the central through hole of the pressing member 174b and screwed to the rod member 174a, or the rod member 174a may be screwed to the pressing member 174b as shown in Fig. The nut N can be screwed to the rod member 174a to constitute the arm member pivoting and pressing means 170. [

The rest is the same as described above.

The present invention is likely to be used for constructing a vibration reduction device for attenuating vibrations of a vibrating body such as a slab by providing it in a structure having a vibrating body such as a slab.

10: Structure 12: beam
14: Slab 100: Vibration reduction device
110: fixing means 130: arm member
150: dustproof elastic body 170: arm member pivotal pressing means
172: spring 174: spring support
174a: rod member 174b: pressing member
200, 202: vibration reduction structure

Claims (7)

Fixing means having a pivotal support and for fixing to a part of the structure;
An arm member rotatably supported on the pivot support portion;
A vibration-proof elastic body provided on the arm member at a position spaced apart from the pivotal support portion and contacting the vibrating body; And
And an arm member pivoting and pressing means installed on the peripheral structure to which the fixing means or the fixing means is installed to cause the vibration-proof elastic body to be pressed against the vibrating body by applying a force to pull or push the arm member in the one rotation direction The vibration reduction device comprising: The vibration damping device according to claim 1, wherein a fixing plate is provided at an end of the arm member, and the vibration-proof elastic body is provided on the fixing plate. 2. The vibration damping device according to claim 1, wherein the arm member pivotal pressing means is provided with a spring for elastically urging the arm member in the one rotation direction. The apparatus according to claim 1, wherein the arm member pivotal pressing means is provided on a spring for elastically urging the arm member in the one rotation direction, a peripheral structure provided with the fixing means or the fixing means, And a spring support member for pulling or pushing the rotary member in the rotation direction. [2] The apparatus of claim 1, wherein the arm member is provided with a through hole,
Wherein the arm member pivoting and pressing means includes a spring provided on a side surface of the arm member of the portion where the through hole is formed, a rod member provided in a peripheral structure provided with the fixing means or the fixing means, And a pressing member which is provided at an end of the rod member that has passed the spring and presses the spring toward the arm member. The vibration damping device according to claim 5, wherein the pressing member is screwed to the rod member so as to adjust the pressing force of the spring. The vibration reduction device according to claim 5, wherein the arm member is formed with a spring receiving groove for receiving at least a part of the spring.
KR1020150052439A 2015-04-14 2015-04-14 Slab vibration reduction device for structure with slab KR101672128B1 (en)

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KR1020150052439A KR101672128B1 (en) 2015-04-14 2015-04-14 Slab vibration reduction device for structure with slab

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KR101672128B1 KR101672128B1 (en) 2016-11-03

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108167365A (en) * 2018-02-09 2018-06-15 中国工程物理研究院总体工程研究所 A kind of adjustable radial compaction vibration absorber of pressing force

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20040037448A (en) * 2002-10-28 2004-05-07 한국전력공사 Friction spring vibration isolation system
JP2006258148A (en) * 2005-03-16 2006-09-28 Daiwa House Ind Co Ltd Rotary friction damper for vibration isolation system
JP2009293320A (en) * 2008-06-06 2009-12-17 Token Corp Damping member

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20040037448A (en) * 2002-10-28 2004-05-07 한국전력공사 Friction spring vibration isolation system
JP2006258148A (en) * 2005-03-16 2006-09-28 Daiwa House Ind Co Ltd Rotary friction damper for vibration isolation system
JP2009293320A (en) * 2008-06-06 2009-12-17 Token Corp Damping member

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108167365A (en) * 2018-02-09 2018-06-15 中国工程物理研究院总体工程研究所 A kind of adjustable radial compaction vibration absorber of pressing force

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