KR101164982B1 - Lock-up device for seismic control of bridge or building structure - Google Patents

Abstract

PURPOSE: A vibration control lock-up device of a structure is provided to improve vibration control effects by dispersing excessive vibration energy caused by earthquakes or wind. CONSTITUTION: A vibration control lock-up device(1) of a structure comprises a cylinder(2), a piston rod(3), a fixed end clevis, a movable end clevis(6), and a pair of joint members(7). The piston rod is extended outward from one end of the cylinder. The fixed end clevis is rotatably coupled to the other end of the cylinder. The movable end clevis is fixed to the extended end of the piston rod. The joint members are pivotally connected to the fixed end clevis and the movable end clevis.

Description

LOCK-UP DEVICE FOR SEISMIC CONTROL OF BRIDGE OR BUILDING STRUCTURE}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to seismic control lock-up devices (LUDs) for bridges and building structures, and more particularly to dissipating excessive vibration energy due to earthquakes, wind or momentary impact loads. In addition to the expansion and contraction behavior of the piston rod in the forward direction, including the direction perpendicular to it is configured to be capable of fine movement, as well as effective vibration damping in the main vibration direction, as well as the piston rod or its accommodating portion according to the fine torsional or fine rotational behavior Since damage and breakage can be effectively prevented, vibration energy can be effectively attenuated without damaging the device during severe vibration duration due to earthquakes, etc., and a greater capacity for slight fine permanent displacement in a direction other than the main vibration direction Piston rod outer circumference table By installing a bellows tube type cover on the surface, the viscous fluid or viscoelastic material in the cylinder can be oxidized or deteriorated by contact with oxygen or contaminated by foreign substances such as dust. The branch relates to the vibration suppression lockup device of the structure as a viscous fluid or viscoelastic damper.

Due to the recent series of major earthquakes abroad and several small earthquakes in Korea, the need for earthquake design is increasing with the awareness of earthquake damage under the awareness that Korea is no longer an absolute safe zone for earthquakes. to be.

If a building or bridge structure is designed to be robust against seismic forces, a typical seismic design would be seismic isolation, which separates the structure from the ground and replaces the structure's vibration period with the earthquake's excellent period. It is a method of avoiding resonance to avoid damage from the earthquake by moving away from the predominant period, and seismic control effectively dissipates the input energy due to the earthquake using various vibration suppression devices. As a method of minimizing damage to structures, seismic isolation and damping are considered as an effective method of seismic design.

More specifically, seismic isolation shows that the earthquake generated when the ground condition is relatively good tends to have a short period component and a long period component tends to be weak. Designed to be longer, avoiding earthquake and resonance of the structure and reducing acceleration and seismic force applied to the structure. The most common seismic isolation device is a seismic isolation base that alternately overlaps a sheet of rubber and steel, or inserts lead in the center of the base. Rubber bearings with high shear deformation capacity, such as lead isolation bearings, and friction pendulum systems as sliding bearings that allow the upper structure to slide easily when subjected to lateral forces.

On the other hand, vibration suppression is a technology to reduce the response response of a structure caused by an earthquake by installing an additional device in the structure. control method, and passive control method for controlling the dynamic response of the structure by installing additional energy dissipation device in the structure to improve the damping performance of the structure, where the active control method provides high vibration control efficiency. Although it is not yet widely applied because it has the disadvantage of requiring precision mechanical and electronic equipment and external power, the manual control method using various passive energy dissipation devices that do not require external power is rapidly applied. The trend is spreading.

Passive vibration damping devices can be roughly classified into energy dissipation devices and vibration tuning damping devices.

Here, the vibration tuned damping device has a tuned mass damper (TMD: Tuned Mass Dampers) consisting of a mass and a damping element attached to a spring tuned to the primary frequency to absorb the primary mode energy of the structure, and the frequency tuned compared to the TMD. Tuned Liquid Dampers (TLDs) using easier water tanks can be divided, and these are mainly used to damp vibrations caused by wind power.

On the other hand, the energy dissipation device is displacement-dependent using energy dissipation characteristics due to frictional forces between materials or plastic deformation of metals, and speed-dependent type using heat dissipation and energy dissipation when viscous or viscoelastic materials deform. viscoelastic damper and viscous fluid, which are the oldest seismic devices that utilize energy dissipation characteristics due to shear deformation of interpolymers such as silicon or vitreous materials in metal boxes. Viscous fluid damper in the form of hydraulic cylinder, which increases the damping ratio without increasing rigidity, and the central steel member so that buckling does not occur and large inelastic deformation occurs. Unbuckled bracing or buckling reinforced with steel pipe and concrete around Yield attenuators, such as buckling-restrained braces (BRBs), and active damping devices, such as AMD (Hybrid Mass Driver) or HMD (Hybrid Mass Driver), which control vibrations by applying optimal computer-controlled control to the structure. .

Among the aforementioned vibration suppression apparatuses, in particular, typical examples of the viscous fluid or viscoelastic damper for vibration damping in the form of hydraulic cylinders include the following.

First, Korean Patent No. 0426584 (registered on February 29, 2004), as shown in FIG. 5, is inclined on both sides of the movable support bridge 230 of a multi-span continuous bridge, and is generated on the bridge upper plate 210 by an earthquake. In order to distribute and transmit the seismic force to the moving bearing bridge 230, the cylinder has a cylinder and a piston with a cylinder bottom part and a head therein and moves the seismic force in the form of a tensile force or a compressive force according to the axial displacement of the bridge top plate 210. Disclosed is a bidirectional collision type left and right seismic force dispersing device 100 which is distributed and transmitted to the piers 230.

However, the seismic force dispersing apparatus 100 is effective for damping or dustproof in the axial direction, but when the propagation direction of the s-wave which causes the greatest damage among the seismic waves is the axial direction, the vibration is perpendicular to the horizontal direction. However, there is a problem in that the seismic force dispersing device 100 may be damaged, the bridge structure may collapse, or the bridge may be broken because there is no capacity thereof. In addition, the piston may directly contact the bottom or the head of the cylinder. There is a problem that it is easy to break because of the shape.

In the figure, reference numeral 240 is a moving support.

In addition, Korean Patent No. 0965235 (registered on June 24, 2010) does not show a specific internal structure here, but is separated from it by a cylindrical elastic silicone body, a spring-like first elastic body and a washer in an oil-immersed cylinder. An anti-vibration damper 100 having a structure composed of a second elastic body made of silicone resin and simultaneously utilizing the viscous deformation of the viscous body, the frictional force of the sliding member, and the elasticity of the anti-vibration spring is proposed.

6A and 6B, the external structure and installation form are essentially the same as in the conventional general case, and the illustrated vibration damper 100 is a pair of cylinders and their ends extending outwards. The piston rod 120 and the universal joint 250 which is installed to each of the extended end of the pivoting movement, and is not a fixed bridge 240 of the upper surface of the bridge 230, the left of the moving bridge 240 of the right Connect the bottom surface of the girder 220 supporting the upper surface of the pier 230 and the upper plate 210.

However, the anti-vibration damper 100 is also effective for vibration or vibration in the axial direction, but when the seismic vibration occurs in the direction perpendicular to the throttle, there is no vibration or vibration damping effect, so that the vibration damper 100 itself is broken or collapse of the bridge structure. There is a problem that can lead to falling bridge.

Reference numeral 112 in the figure is an oil injection hole, 200 is a bridge.

In addition, in the conventional viscous fluid or viscoelastic damper including the prior art as described above, vibration is possible in the main vibration direction (generally the axial direction), but fine behavior in any direction including the direction orthogonal thereto is integrated. In addition to the problems described above as not possible, there is a serious problem that direct breakage or failure of the attenuator is also caused by a slight fine displacement in a direction other than the main vibration direction described above.

In addition, if viscous fluid or viscoelastic material in the cylinder comes into contact with oxygen through oxidation of the piston rod or the contamination due to foreign matter such as dust or the like, the normal operation may be inhibited in case of severe vibration caused by earthquake. And / or the inspection and replacement cycle of the viscoelastic material is shortened, resulting in poor maintenance.

Therefore, there has been a need in the art for the development of viscous fluids and / or viscoelastic dampers for bridge structures or building structures which overcomes the problems of the prior art as described above.

Therefore, the first object of the present invention is to effectively dissipate excessive vibrational energy due to earthquake, wind or momentary impact load, and to effectively damp the piston rod in the horizontal direction orthogonal to the stretching direction as well. To provide a vibration suppression lockup device for a bridge or a building structure capable of fine or fine torsional behavior or fine rotational behavior.

The second object of the present invention is damage or breakage of the piston rod or its receiving portion or cylinder due to the fine or twisting or fine rotational motion in the horizontal direction orthogonal to the stretching direction of the piston rod in accordance with the first object described above. It is to provide a vibration suppression lockup device for a bridge or building structure that can effectively prevent.

The third object of the present invention is to effectively attenuate the vibration energy without damaging the device during the duration even when severe vibration caused by the earthquake or the wind of the typhoon acts in the direction perpendicular to the throttle direction. To provide a vibration suppression lockup device for a bridge or building structure.

The fourth object of the present invention is a vibration suppression lockup device for a bridge or building structure, which can further reduce the need for repair after an earthquake, since it can exhibit a greater capacity for slight fine permanent displacement in a direction other than the main vibration direction. It is to provide.

The fifth object of the present invention is to maintain long-term operation stability and high maintainability after installation by minimizing or blocking the possibility of viscous fluid or viscoelastic material in cylinder contacting with oxygen to be oxidatively deteriorated or contamination by foreign matter such as dust. To provide a vibration suppression lockup device for a bridge or building structure.

According to a preferred aspect of the present invention for smoothly achieving the first to fourth objects of the present invention, a cylinder, a piston rod extending outwardly from one end of the cylinder, and a rotation on the other end of the cylinder The free end fixed clevis, the movable end clevis which has the support end part which was fixed to the extended end of the said piston rod, and the recessed part was formed, and the said fixed end and movable end clevis are each pivotable Of a joint member fixed by a pin, a spherical member into which a pin for fixing the movable end clevis is fitted, and the outer peripheral surface thereof. It consists of a spherical plate which is fixed in a recess and has a central annular curved inner wall and an annular vertical wall of upper and lower ends thereof, and the upper and lower ends of the spherical member described above. The piston rod is positioned by being spaced apart from the annular vertical wall of the spherical plate by the clearance, and the piston rod is caused by the micro displacement of the spherical outer wall of the spherical member and the annular curved inner wall of the spherical plate. A seismic control lock-up device for a bridge or building structure is provided that is composed of a rotating assembly that enables fine tilting or rotational behavior in any direction.

According to another preferred aspect of the present invention for smoothly achieving the first to fourth objects of the present invention, a cylinder, a piston rod extending outwardly from both ends of the cylinder, and an extension of each of the piston rods described above A pair of movable end clevises fixed to an end and having a supporting end portion having a recessed portion, a joint member fixed to the pair of movable end clevises by a pin so as to pivotally move, and the respective movable end cleats described above. A spherical member into which a pin for fixing a bis is fitted, and a spherical member which is fixed in the recess of the movable end clevis and encloses the outer curved surface thereof, and has a central annular curved inner wall and an upper and lower annular vertical wall. It is made of a plate, the upper and lower ends of the spherical member is spaced apart from the annular vertical wall of the spherical plate and the gap portion. By locating, the piston rod is finely tilted or rotated in any direction by a micro displacement caused by the sliding motion of the spherical outer wall of the spherical member and the annular curved inner wall of the spherical plate. A vibration suppression lockup device for a bridge or building structure is provided that is comprised of a pair of rotating assemblies that enable behavior.

According to another preferred aspect of the present invention for smoothly achieving the first to fourth objects of the present invention, the fine tilting or rotational behavior of the piston rod is 0.5 to 5 ° to one side from the central axis of the piston rod. A vibration suppression lockup device for a bridge or building structure is provided within an angular range of, preferably in an angular range of 1 to 3 °, and particularly in an angular range of 1 to 2 °.

According to another preferred aspect of the present invention for smoothly achieving the first to fourth objects of the present invention, vibration suppression of a bridge or building structure in which the spherical plate is composed of at least two pieces, preferably three pieces. A lockup device is provided.

According to another preferred aspect of the present invention for smoothly achieving the first to fourth objects of the present invention, the movable end clevis is rotatable to the body and the body, the extension end of the piston rod is fixed; A vibration suppression lockup apparatus for a bridge or building structure is provided, which comprises a fixed cone and a support end fixed integrally or separately to the cone.

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According to another preferred aspect of the present invention for smoothly achieving the first to fourth objects of the present invention, the separation prevention of the opening of the recess is adjacent to the rotating assembly located in the recess of the movable end clevis A vibration suppression lockup device for a bridge or building structure in which a ring is sandwiched is provided.

According to another preferred aspect of the present invention for smoothly achieving the first to fourth objects of the present invention, a joint member for fixing the movable end clevis is provided with a fixed plate and a pair of fixed vanes positioned perpendicular thereto. It is configured, there is provided a vibration suppression lockup device of a bridge or building structure in which the inner peripheral edge of the pair of fixed wings is formed to be inclined outwardly.

According to a preferred aspect of the present invention for smoothly achieving the fifth object of the present invention, there is provided a vibration suppression lockup device for a bridge or building structure in which the bellows tube type cover is covered on the entire outer circumferential surface of the piston rod in the foregoing aspect. do.

According to another preferred aspect of the present invention for smoothly achieving the fifth object of the present invention, the bellows tube type cover of the above aspect is flanged at both ends, and the flange of one side is screwed into the movable end clevis. A vibration isolation lockup device for a bridge or building structure is provided which is fixed and the flange of the other side is screwed to the cylinder.

The damping lockup device for a bridge or building structure according to the present invention is effective in damping excessive vibration energy due to an earthquake, typhoon or any momentary impact load, as well as the effective damping according to the stretching direction of the piston rod. Fine or twisting or fine rotational motion in the horizontal direction orthogonal to is possible, which effectively prevents damage or breakage of the piston rod or its receptacle or cylinder during the duration of an earthquake or typhoon, while providing stable and effective vibration energy. And permanent displacement in any direction other than the expansion direction of the piston rod is acceptable without damage to the device, thus reducing the need for post-earthquake repairs, and optionally the bellows tube on the cylinder rod. Type cover If wool after installation by the viscous fluid or viscoelastic material in contact with oxygen or alteration block minimizing the possibility of contamination by foreign matter such as dust to effectively oxidized in the cylinder indicates a high operating reliability and good maintainability over a long period of time.

1 is a perspective view of a vibration suppression lockup apparatus of a structure according to the present invention.
2 is a side cross-sectional view of the main part of FIG.
3A and 3B are a perspective view and a plan view, respectively, of the rotation receiving portion.
4A and 4B are a plan view and a perspective view, respectively, of the bellows cover for the piston.
5 is an exemplary view showing a construction of a conventional damping device.
6A and 6B are respectively a perspective view and a construction state diagram of a conventional vibration damper.

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

1 is a perspective view of a damping lock-up device 1 of a structure according to the present invention, the external configuration of which is shown is one end or multistage cylinder 2 and extends outward from one end of the cylinder 2 described above. The piston rod 3 to be fixed, the fixed end clevis 5 rotatably coupled to the other end of the cylinder 2, and the movable end clevis 6 fixed to the extension end of the piston rod 3 above. And a pair of joint members 7 fixedly connected to the fixed end clevis 5 and the movable end clevis 6 by a pin 4 so as to be pivotally movable.

However, the present invention is not limited to the illustrated example, and of course, the piston rod 3 extends from both ends of the cylinder 2 to be fixed to each of the movable end clevis 6, of course, This is also within the scope of the present invention.

In the drawings, reference numeral 20 denotes a bellows tube type cover, which will be described later.

Next, FIG. 2, which is a main sectional side view of FIG. 1, will be described in detail, and FIGS. 3A and 3B show a perspective view and a plan view of the rotating assembly 10, respectively, and a bellows tube type cover 20 for a piston rod, if necessary. Reference will be made together to FIGS. 4A and 4B, respectively, showing a plan view and a perspective view thereof.

FIG. 2 is a side cross-sectional view showing the internal structure by extracting only the left end of the movable end clevis 6, the joint member 7, the piston rod 3, and the cylinder 2 from FIG. 1.

The damping lock-up device 1 for a bridge or building structure according to the present invention shown is fixed to the piston rod 3 extending outward from the cylinder 2 and one end thereof, and to the extension end of the piston rod 3 described above. And a movable end clevis 6 having a support end 6c having a recess 6e formed therein, and a joint member 7 fixed to the movable end clevis 6 by a pin 4 so as to pivotally move. )

Here, at the support end 6c of the movable end clevis 6, a cylindrical recess 6e is formed in a direction orthogonal to the axial direction of the piston rod 3, and the recess 6e is described above. Rotating assembly 10 is mounted therein.

The cylindrical portion 6e formed in the above-described cylindrical portion is provided with an opening portion 6g for fitting the rotary assembly 10 at one end thereof, and the other end thereof has a sheet portion having an opening 6d for inserting the pin 4 therein. It is formed by 6f.

On the other hand, the rotating assembly 10 is composed of a spherical member 11 and the spherical plate 12, the spherical member 11 is a vertical inner wall (11a) and the spherical ( It has a spherical outer wall (11b), the spherical plate 12 has an annular curved inner wall (12a) of the central portion and an annular vertical wall (12b) formed in the upper and lower ends thereof, the outer peripheral surface forms an annular vertical surface While keeping in close contact with the inner wall surface of the concave portion 6e, the annular curved inner wall 12a of the spherical plate 12 is the spherical outer wall of the spherical member 11 described above. The annular vertical wall 12b which is maintained in contact with the 11b and is formed at the upper and lower ends of the annular curved inner wall 12a of the spherical plate 12 is the spherical outer wall of the spherical member 11. And 11b) remain slightly spaced apart from each other through the gap portion 12c.

Accordingly, the spherical outer wall 11b of the spherical member 11 to which the pin 4 for fixing the movable end clevis 6 is fitted and the annular curved inner wall 12a of the spherical plate 12 slide together. The fine displacement along the movement makes the piston rod 3 capable of fine tilting or rotational behavior in any direction.

On the other hand, the release preventing ring 13 is held in the opening 6g of the recess 6c adjacent to the rotary assembly 10 located in the recess 6c of the movable end clevis 6 ( Of course, you can.

In addition, the spherical plate 12 is preferably divided into at least two pieces (piece) or more for ease of assembly, and most preferably consists of three pieces as shown in terms of assembly convenience.

The material of the spherical member 11 and the spherical plate 12 may be made of stainless steel or engineering plastic, preferably polyethylene (PE), polytetrafluoroethylene (PTFE), purple having a low coefficient of friction Luoroalkoxy (PFA), Fluorinated Ethylene Propylene Copolymer (FEP), Ethylene Tetrafluoroethylene Copolymer (ETFE), or these to improve wear resistance or activity such as glass fiber, graphite, carbon, carbon fiber, MoS ₂ It is stainless steel surface-coated with a resin to which various fillers are added.

In the present invention, the angle of the fine tilting or rotational behavior of the piston rod 3 is not limited, but is an angle range of 0.5 to 5 ° from one side of the central axis of the piston rod 3 (1 to 10 ° on both sides). Range), preferably an angle range of 1 to 3 °, specifically 1 to 2 °.

In the illustrated example, the movable end clevis 6 includes a body 6a on which an extended end of the piston rod 3 is fixed, a cone body 6b rotatably fixed to the body 6a, and It consists of a support end (6c) that is fixed to one cone (6a) integrally or separably, but the present invention is not limited thereto, and if necessary, by forming the body (6a) and the cone (6b) integrally Of course, it can also be made non-rotable, it can also be fixed or rotatably fixed to the support end (6c) directly to the body (6a) without the above-mentioned cone (6b) is also within the scope of the present invention.

Also, although not shown, the piston rod 3 extends from both ends of the cylinder 2 as described above, and the movable end clevis 6 of the structure as described above is fixed to either or both of them. Of course, it can also be in the form of letting it be, it is also within the scope of the present invention.

In addition, in the present invention, although the connection method and the form of the joint member 7 for fixing the above-described movable end clevis 6 and the fixed end clevis 5 (see FIG. 1) are optional, in the illustrated example, It consists of a fixed plate (not shown) fixed to the top or one side or the bottom or side of a pier or alternating bridge and a pair of fixed vanes 7a positioned perpendicular thereto, although not shown. It is also possible to form the inner peripheral edge of the fixed blade 7a of the inclined outward, thereby reducing the possibility that the inner peripheral edge of the fixed blade 7a and the outer peripheral surface of the support end 6c in contact with the damage. .

In the present invention, by selectively covering the bellows tube type cover 20 on the entire outer circumferential surface of the piston rod 3, the viscous fluid or viscoelastic material in the cylinder 2 comes into contact with oxygen, or is oxidized or deteriorated. By minimizing or blocking the possibility of contamination by foreign substances, it is possible to maintain long-term operation stability and high maintainability after installation.

In the illustrated example, flanges 22 are formed at both ends of the bellows tube type cover 20 having high elasticity in the axial direction by the plurality of corrugations 21, and the flange 22 on one side is movable. However, although the screw is fixed to the clevis 6 with the fixing bolt 23 and the other side flange 22 is screwed with the fixing bolt 23 to the cylinder 2, the fixing method is used in the present invention. Not restrictive and optional.

As the material of the bellows tube type cover 20, a resin having good weather resistance, high tensile strength and flexibility that is not easily degraded by ultraviolet rays is selected, and examples thereof include polyethylene (PE), polypropylene (PP), and polyethylene terephthalate. (PET), polytetrafluoroethylene (PTFE), perfluoroalkoxy (PFA), fluorinated ethylene propylene copolymer (FEP), ethylene tetrafluoroethylene copolymer (ETFE), etc. are mentioned.

In other words, the damping lockup device 1 according to the present invention, in the case of the bridge structure, fixes the joint member 7 on one side to the upper surface of the pier or the shifting side of the moving base, or a fixing bolt on one side thereof. The other side of the joint member 7 is generally fixed to the bottom or side of the moving end of the girder, but in some cases may be installed to interconnect the fixed end and the moving end of the girder on which the top plate is located at the side or bottom. In the case of a building structure, the shape of the joint member 7 may be changed and installed in the middle or the end of the brace.

The present invention has been described in detail so far, but it is not intended to limit the scope of the present invention as merely for illustrating the present invention, and those skilled in the art can make various changes and modifications without departing from the scope of the present invention. This is also within the scope of the present invention.

1: Vibration lock up device of a structure according to the present invention
2: cylinder 3: piston rod
4: pin 5: fixed end clevis
6: movable end clevis 6a: body
6b: cone 6c: support end
6d: opening 6e: recess
6f: seat portion 6g: opening portion
7: joint member 7a: fixed wing
7b: opening 7c: housing
10: rotating assembly 11: spherical member
11a: vertical inner wall 11b: spherical outer wall
12: spherical plate 12a: annular curved inner wall
12b: annular vertical wall 12c: gap portion
13: release prevention ring 20: bellows tube type cover
21: crease 22: flange
23: fixing bolt

Claims (10)

A piston rod extending outwardly from the cylinder and one end thereof;
A fixed end clevis in which rotation is freely fixed to the other end of the cylinder;
A movable end clevis fixed to an extended end of the piston rod and having a support end having a recess formed therein;
A joint member fixed to the fixed end and the movable end clevis by a pin to pivotally move; And
A spherical member into which a pin for fixing the movable end clevis is fitted, and a peripheral annular inner wall of the movable end clevis, which is enclosed in the concave portion of the movable end clevis and surrounds the outer circumferential surface thereof, and an upper and lower end annular shape. A spherical outer wall of the spherical member and the spherical surface of the spherical member, wherein the upper and lower ends of the spherical member are spaced apart from the annular vertical wall of the spherical plate. Consisting of a rotary assembly that enables fine tilting or rotational behavior of the piston rod in any direction by fine displacement along the sliding motion of the annular curved inner wall of the plate.
Seismic control lock up device for bridges or building structures. A piston rod extending outwardly from the cylinder and both ends thereof;
A pair of movable end clevises fixed to the extended ends of each of the piston rods and having a support end formed with a recess;
A joint member fixed to the pair of movable end clevises by a pin to pivotally move; And
A spherical member into which a pin for fixing each of the movable end clevises is fitted, and the outer circumferential surface of the spherical member, which is fixed in the recess of the movable end clevis, and which has a central annular curved inner wall and its upper and lower ends. And a spherical plate made of an annular vertical wall of which the upper and lower ends of the spherical member are spaced apart from the annular vertical wall of the spherical plate with a gap. Composed of a pair of rotating assemblies that enable fine tilting or rotational behavior of the piston rod in any direction by micro displacement due to the sliding motion of the annular curved inner wall of one spherical plate.
Seismic control lock up device for bridges or building structures. The vibration damping device of claim 1 or 2, wherein the fine tilting or rotational behavior of the piston rod is set within an angle range of 0.5 to 5 degrees to one side from the central axis of the piston rod. The vibration suppression lockup device according to claim 1 or 2, wherein the spherical plate is formed of at least two pieces. 3. The movable end clevis according to claim 1 or 2, wherein the movable end clevis is fixed to the body on which the extended end of the piston rod is fixed, to a concave body rotatably fixed to the body, and to the conical body integrally or separately. A damping lockup device for a bridge or building structure composed of support ends. delete The vibration suppression of the bridge or building structure according to claim 1 or 2, wherein a release preventing ring is sandwiched between the openings of the recesses adjacent to the rotary assembly located in the recesses of the movable end clevis. Lockup device. According to claim 1 or 2, wherein the joint member for fixing the movable end clevis is composed of a fixed plate and a pair of fixed vanes positioned perpendicular to the inner peripheral edge of the pair of fixed vanes A damping lockup device for a bridge or building structure that is formed obliquely outward. The vibration suppression lockup device according to claim 1 or 2, wherein a bellows tube type cover is covered over the entire outer circumferential surface of the piston rod. The vibration suppression lockup of a bridge or building structure according to claim 9, wherein the bellows tube type cover is flanged at both ends, the flange of one side is screwed to the movable end clevis, and the flange of the other side is screwed to the cylinder. Device.

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