KR20160120117A - Multi Joint Vibration Control Device - Google Patents

Abstract

The present invention relates to a vibration control device manufactured to disperse vibration energy caused by wind load or seismic load, and more specifically, to a multi-joint vibration control device which has a plurality of connection rotary shafts to be behaved in many directions around the connection rotary shafts, and is capable of dispersing energy in a multi-shaft direction because the vibration control device is behaved around multi-shafts. The multi-joint vibration control device in accordance with a proper embodiment of the present invention, comprises: steel length members, wherein bolt holes are punched on at least one end, and the ends are arranged on the same line at an interval; a steel patching member, wherein bolt holes are punched on both ends, and the both ends are arranged on both ends of the steel length members at an interval to correspond to the bolt holes of the steel length members; point elastic members arranged on a gap between the length member and the patching member to join the length member and the patching member; and bolt members (40) which have diameters smaller than the bolt holes of the length member and the patching member, and connect the bolt holes of the length member and the patching member, and the point elastic member by penetrating the bolt holes and the point elastic member.

Description

{Multi Joint Vibration Control Device}

More particularly, the present invention relates to a vibration damping device that can dissipate vibrational energy due to wind loads or earthquake loads, and more particularly, to a vibration damping device having a plurality of connection rotation shafts, And the energy dissipation in the direction of the multi-axis can be performed.

Vibration control refers to the control of vibration caused by wind or earthquake in a building, and the structure with a special device or mechanism, that is, a vibration suppression device, is called a vibration suppression structure for vibration control. The purpose of vibration damping is to improve the safety and habitability of the structure by dissipating vibration energy input to the structure by wind or earthquake by installing a vibration isolation device.

As a vibration suppression method, there is an active control that reduces the vibration of the structure by applying the control force corresponding to the vibration of the structure from inside or outside of the structure and having the function of sensing the vibration of the structure and the vibration of the structure accordingly. There is a passive control that controls the dynamic response of the building by installing an additional energy dissipation device to improve the damping performance of the structure.

Passive type vibration suppression devices can be classified into mass vibration type and energy dissipation type. The former is mainly installed at the top of the building, mainly for the purpose of increasing the residence of the wind. The latter is mainly installed in each floor to increase the safety of the earthquake and the residence of the wind.

The energy dissipative type vibration damper can be divided into a displacement dependent type and a speed dependent type. The displacement dependent type device utilizes the energy dissipation characteristic due to the frictional force between the materials or the plastic deformation of the metal. The speed dependent type is a case where the viscous material, The energy dissipated by generating heat and dissipating the vibration energy has a characteristic that the energy dissipated increases in proportion to the speed.

Hydraulic dampers, which are a kind of speed dependent vibration damping devices, have excellent seismic performance compared with steel dampers and are mainly used in Japan where heavy earthquakes occur nationwide. However, since such a hydraulic damper is expensive, it is unnecessarily excessive in the country where the occurrence frequency of the earthquake is low and the strength of the earthquake is not high. On the other hand, the steel damper has a somewhat lower seismic performance than the hydraulic damper, but the steel damper is used for reinforcement of the steel structure because the construction cost is low.

As a background of the present invention, there is a patent document 10-1070043 'Column-shaped damper for improving seismic performance of a building' (Patent Document 1). This patent devises columnar dampers not to cause spatial obstacles. In particular, we propose columnar dampers with micro and macro fibers added to cement paste or cement mortar to improve the seismic performance of buildings. The column-type damper proposed by this patent has superior capability of suppressing or delaying cracks under design load and additional load as compared with existing cement composite, and is excellent in permeability and durability and improved energy dissipation and damage control ability However, when compared with other materials, there are problems such as the limit of ductility of cement composites and the occurrence of non-environmentally friendly waste when the column type damper needs to be replaced after earthquake load.

Patent No. 10-0718294 'Column-type damper for improving seismic performance of buildings'

 DISCLOSURE OF THE INVENTION The present invention has been made in order to solve the problems of the above-mentioned prior arts, and it is an object of the present invention to provide a steel material which is economical and eco-friendly material, a high damping rubber which is excellent in energy dissipation capability, And to provide a vibration damping device using the vibration damping device.

Another object of the present invention is to provide a vibration damping device in which the vibration damping member itself has various connection rotation shafts and can be moved in various directions around the connection rotation axis.

Another object of the present invention is to provide a vibration damping device having a shape capable of coping with a displacement in multiple directions rather than one direction by one vibration damping device.

A multi-joint vibration damping device according to a preferred embodiment of the present invention is a multi-joint vibration damping device according to a preferred embodiment of the present invention, in which a bolt hole is drilled at both ends and a bolt hole is drilled, A viscoelastic member disposed at an interval between the elongated member and the overlapped member and joining the elongated member and the overlapped member, And a bolt member (40) having a diameter smaller than that of the hole and the overhead bolt hole and connecting the long bolt hole with the overhead bolt hole and the viscoelastic member.

At this time, the length member is formed of a quadrangular cross-sectional member having two pairs of joining surfaces, and the connection between the overlap member and the length member can be connected in order by changing the joining surfaces of the length members.

A multi-joint vibration damping device according to another embodiment of the present invention is a multi-joint vibration damping device according to another embodiment of the present invention, in which a bolt hole is drilled at one end thereof with two ends and a bolt hole is perforated, A steel material overhang member having a length of steel material embedded therein, a bolt hole formed at both ends thereof, and both ends of the bolt hole being perforated so as to correspond to the bolt hole of the elongated member, And a bolt member having a diameter smaller than that of the longitudinal member bolt hole and the overhang bolt hole and connecting the longitudinal member bolt hole and the overhang bolt hole and the viscoelastic member to connect the viscoelastic member and the overhang member, .

The multi-joint vibration damping device according to the present invention is advantageous in that the vibration damping member itself has various connection rotation axes and can behave in various directions around the connection rotation axis with respect to the unpredictable directionality and the continuous vibration of the horizontal load.

Further, since the multi-joint vibration damping device according to the present invention can operate with one multi-axis vibration damping device, it is not necessary to install the vibration damping device in various directions on the building plane.

BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate exemplary embodiments of the invention and, together with the description, serve to explain the principles of the invention, Shall not be construed as limiting.
FIG. 1A is a perspective view of a multi-joint vibration damping device according to an embodiment of the present invention, and FIG. 1B is a sectional view taken along the line AA in FIG. 1A.
2 is a schematic diagram showing the behavior of a multi-joint vibration damping device according to an embodiment of the present invention.
3 is a perspective view of a multi-joint vibration damping device according to another embodiment of the present invention.
4 is a cross-sectional view of a multi-joint vibration damping device according to another embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to the embodiments shown in the accompanying drawings, but the present invention is not limited thereto.

FIG. 1A is a perspective view of a multi-joint vibration damping device according to an embodiment of the present invention, and FIG. 1B is a cross-sectional view taken along line A-A of FIG. 1A.

As shown in FIG. 1, a multi-joint vibration damping device according to an embodiment of the present invention includes a bolt hole 10a at least at one end thereof and a bolt hole 10a formed at one end of the bolt hole 10a, A plurality of steel member length members 10 are provided with bolt holes 20a at both ends thereof and both ends of which the bolt holes 20a are drilled are spaced on both sides of the length member 10 so as to correspond to the bolt holes 10a of the long member A viscoelastic member 30 disposed at an interval between the elongated member 10 and the overlapped member 20 and joining the elongated member 10 and the overlapped member 20, a bolt hole 10a, And a bolt member 40 having a diameter smaller than that of the bolt hole 20a and connecting the bolt hole 10a with the bolt hole 20a and the viscoelastic member 30 through the bolt hole 10a.

In this embodiment, a plate-shaped steel member having both ends is used as the elongated member 10. A bolt hole 10a is formed in at least one end of the elongated member 10 so as to enable bolt connection with the overlock member 20. The bolt hole 10a is formed in the bolt member 40 as shown in FIG. Diameter. When two or more length members 10 are used, bolt holes 10a must be drilled at both ends of the length member 20. [ The plurality of length members 10 are arranged in parallel with each other so that the end portions of the bolt holes 10a are punched to face each other.

The overlapped member 20 is made of a plate-shaped steel member having both ends and a bolt hole 20a for connecting to the elongated member 10 is formed at both ends. The bolt hole 20a is formed to be larger than the diameter of the bolt member 40 and the bolt hole 20a of the overlock member 20 is inserted into the bolt hole 10a of the elongated member 10, Are disposed on both sides of the elongated member 10 at intervals. That is, the overlock member 20 is formed in such a shape as to be padded on both sides of the length member 10 spaced apart and to connect the length member 10 to each other.

The puncturing members 30 are disposed at intervals between the elongated member 10 and the overlapped member 20 and serve to primarily bond them.

As the viscoelastic member 30, a high damping rubber may be used. The high-damping rubber is prepared by adding additives such as fillers, vulcanizing agents, antioxidants and plasticizers to natural rubber and / or carbon black, and then vulcanizing the mixture at a predetermined temperature and a heat. At this time, the viscosity and elasticity of the highly damped rubber are controlled by adjusting the ratio of the additive added to the natural rubber or / and the carbon black. The high damping rubber has both elastic and viscous properties, and it provides additional stiffness when used as a vibration damping device in a material structure with good stability. It also increases the energy dissipation ability to control vibration of the structure by earthquake or wind It is a material suitable for the following.

The viscoelastic member 30 is bonded by applying any method known in the art, such as vulcanization bonding.

The viscoelastic member 30 is a means for connecting the elongated member 10 and the overlapped member 20 and serves to absorb vibration energy by elastic deformation described later.

The bolt member 40 has a smaller diameter than the bolt holes 10a and 20a and penetrates through the elongated bolt hole 10a and the bolt hole 20a and the viscoelastic member 30 to form the elongated member 10, (20). Since the length of the bolt hole 10a and the bolt hole 20a of the bolt member 40 are larger than the diameter of the bolt member 40, the bolt connection is in a state of not being completely coupled. This is to induce the plastic and plastic deformation of the steel members after the plastic deformation and plastic deformation of the viscoelastic member 30 described later.

The operation of the multi-joint vibration damping device according to one embodiment of the present invention configured as described above is as follows.

When the earthquake load or wind load is transmitted to the structure, displacement and vibration are generated in the structure. At this time, the viscoelastic member 30 of the vibration isolation device absorbs and damps displacement and vibration to secure the stability and usability of the structure. That is, when a wind load or a weak earthquake load is applied, the viscoelastic member 30 flexibly resiliently resists deformation, absorbing and attenuating the horizontal load. The viscoelastic member 30 using the high-damping rubber can appropriately select the properties of the high-damping rubber material in order to stably perform the performance as the vibration damping member such as the horizontal stiffness, the vertical stiffness and the limit performance. The area can be adjusted.

When large horizontal loads exceeding the abrasive and plastic deformation capacity of the viscoelastic member 30 such as a strong earthquake load are generated, the steel members are plastically deformed to dissipate the energy. In the stage where the deformable capacity of the viscoelastic member 30 has been lost, the elongated member 10 made of a steel, the overlock member 20 and the bolt member 40 are plastically deformed to absorb and attenuate energy.

2 is a schematic diagram showing the behavior of a multi-joint vibration damping device according to an embodiment of the present invention.

The multi-joint vibration damping device according to the present invention has a plurality of connection rotation shafts. The multi-joint vibration damping device connects the overlock member 20 to the spaced apart portion in a state where the long member 10 is spaced apart, so that the connection does not occur at one portion but occurs at two portions. The deformation between the members may be made in the same direction as shown in Fig. 2A or in the other direction as shown in Fig. 2B. 2A, the viscoelastic member 30 and the steel members resist the clockwise twisting of both the upper and lower connection rotary shafts with respect to the overlapped member 20, but in the case of FIG. 2B, Clockwise at the rotating shaft and counterclockwise at the lower connecting rotating shaft.

Unlike vertical loads such as fixed loads and working loads, wind loads and seismic loads can not predict their directionality, and dynamic loads continue to oscillate, so the behavior of the damping elements can not be expected in a certain direction. Therefore, the multi-joint vibration damping device according to the present invention is designed so that the vibration damping member itself has various connection rotation axes and can move in various directions about the connection rotation axis, against unpredictable directionality and continuous vibration of horizontal load.

3 is a perspective view of a multi-joint vibration damping device according to another embodiment of the present invention.

In this embodiment, unlike the previous embodiment, the length member 10 is selected as a member having a multiaxial cross-section capable of providing multi-directional joining surfaces. For example, a rectangular steel pipe having a biaxial cross section provided by two pairs of joint surfaces shown in Fig. 3 may be selected. When connecting the overlock member 20 and the elongated member 10, the direction of the joining surface is changed in order with respect to the multi-axial direction of the end surface of the elongated member. 3 is connected at the first abutment surface 11 to the first axis 1 of the end face of the elongated member 10 and the lower abutment member 20 is connected Is connected at the second abutment surface (12) to the second axis (2) of the longitudinal member section. Such a connection in the axial direction enables the multi-axis behavior of the vibration damping member.

The multi-joint vibration damping device according to the present invention is characterized in that the direction of displacement is not limited to a plane. That is, the joint between the members constituting the vibration suppression device does not correspond to one-directional displacement in a plan view but can be deformed into multiple axes, so that three-dimensional displacement behavior can be expected.

In general, the structural design for lateral loads is such that wind loads and seismic loads can not predict their directionality, so that a planar vibration device acting as a single axis is installed in various directions along the axial direction of the building according to the building shape.

The multi-joint vibration damping device according to the present invention is advantageous in that a single vibration damping device can be operated with multiple axes, so that it is not necessary to install a vibration damping device in various directions on a building plane.

In the above-described and illustrated examples, a rectangular steel pipe having a biaxial cross-section is used as the elongated member 10, but the present invention is not limited thereto and a length member 10 having a cross-section of more than two axes can be used. If hexagonal cross sections with three axes or octagonal cross sections with four axes are used, it is possible to expect the displacement behavior for the 3-axis and 4-axis by joining while changing the joining faces in three directions and four directions respectively.

The use of the multi-joint vibration suppression device in the form of a column can be installed in almost every position except for some parts which can not be installed on the architectural plan, so that the degree of freedom in the construction of the building plan can be maximized. It is preferable that the residential high-rise building is installed in a space that is not occupied by a room occupant, such as a part of a facility shaft through which the equipment vertically penetrates, or a veranda portion where an air conditioner outdoor unit is installed. When the columnar vibration isolation device is installed in such a space, no additional space loss occurs.

4 is a cross-sectional view of a multi-joint vibration damping device according to another embodiment of the present invention.

In the present embodiment, the multi-joint vibration damping device is manufactured in a non-columnar shape, instead of a columnar shape. As shown in FIG. 4, when the stud bolt 100 is attached to the buried portion of the long member 10, the one end of the long member 10 is embedded in the concrete 101. When embedded in the concrete, It is possible to expect the integration of the attachment of the ribs and the use of additional reinforcing bars is not required.

As described above, the multi-joint vibration damping device according to the present invention can be applied in various forms such as a column, a beam, a brace, or a slit horizontally disposed on a shear wall and between the slits.

As described above, the multi-joint vibration damping device according to the present invention has an advantage in that the vibration damping member itself has various connection rotation axes and can act in various directions around the connection rotation axis, against unpredictable directionality and continuous vibration of horizontal load have.

Further, since the multi-joint vibration damping device according to the present invention can be freely moved with respect to a plurality of directions of horizontal displacement, there is no limitation on the directionality, so that it can correspond to multi-directional lateral loads, .

In addition, the use of the articulated vibration damping device according to the present invention can reduce the size of the cross-section of the main structural member of the structure by only paying a vertical load, thereby enabling economical design. Is simple and easy to manufacture and install. It can contribute to productivity improvement because it is cheap, and it has a merit of simple replacement when permanent deformation occurs in the vibration damper after occurrence of the earthquake load.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is evident that many alternatives, modifications and variations will be apparent to those skilled in the art in light of the above teachings. will be. The invention is not limited by these variations and modifications, but is limited only by the claims appended hereto.

10: length member 10a: length member bolt hole
20: Overlock member 20a: Overlock member bolt hole
30: Viscoelastic member
40: Bolt member

Claims (3)

A steel material length member (10) having at least one end thereof with a bolt hole (10a) pierced and a bolt hole (10a) being perforated and being spaced from each other in a line;
A steel material overlock member 20 having both ends thereof punctured with bolt holes 20a and both ends of which are drilled with bolt holes 20a so as to correspond to the bolt holes 10a of the longitudinal members;
A viscoelastic member 30 disposed at an interval between the long member 10 and the overlapped member 20 and joining the long member 10 and the overlapped member 20; And
A bolt member 40 having a diameter smaller than that of the longitudinal member bolt hole 10a and the overhang bolt hole 20a and connecting the longitudinal bolt hole 10a with the overhang bolt hole 20a and the viscoelastic member 30, ). ≪ / RTI > The method according to claim 1,
The longitudinal member 10 is formed of a quadrangular cross-sectional member having two pairs of joining surfaces 11, 11 (12, 12)
Wherein the connection between the overlapping member (20) and the longitudinal member (10) is connected to the joint surfaces (11, 12) of the longitudinal member (10) in order. A bolt hole 10a is drilled at one end and a bolt hole 10a is drilled at one end and the stud bolt 100 is attached to the other end of the concrete 101, (10);
A steel material overlock member 20 having both ends thereof punctured with bolt holes 20a and both ends of which are drilled with bolt holes 20a so as to correspond to the bolt holes 10a of the longitudinal members;
A viscoelastic member 30 disposed at an interval between the long member 10 and the overlapped member 20 and joining the long member 10 and the overlapped member 20; And
A bolt member 40 having a diameter smaller than that of the longitudinal member bolt hole 10a and the overhang bolt hole 20a and connecting the longitudinal bolt hole 10a with the overhang bolt hole 20a and the viscoelastic member 30, ). ≪ / RTI >

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