KR101067435B1 - Vibration damping apparatus for structure - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vibration damping device for a building structure, which is installed on a roof of a building structure to damp vibrations of the building structure. A liquid flow tube for dispersing a portion of the liquid swelled by the XY axis in the roof surface; And a damper unit disposed between the liquid flow tube and the rooftop surface to absorb and damp the vertical and horizontal loads, vibrations, and negative forces between the liquid flow tube and the building structure. As a result, the horizontal load and vibration generated in the building structure due to an earthquake or the like can be absorbed and damped in the front, rear, left and right directions of the building structure. In addition, it is possible to absorb and attenuate loads and vibrations in the vertical direction generated by the earthquake and the like, and negative forces.

Description

Vibration damper for building structure {VIBRATION DAMPING APPARATUS FOR STRUCTURE}

The present invention relates to a vibration damping device for a building structure, and more particularly, a building which is installed on a roof of a building structure and absorbs the movement of the building structure due to an earthquake or wind as a liquid shakes to damp the vibration of the building structure. It relates to a vibration damping device for a structure.

In general, the building structures used as living and living spaces are built from the ground to the ground, and these building structures are designed and constructed to withstand their own loads and loads of various items placed therein, and they are also constructed from impacts from the outside. However, it is designed and constructed so that it does not collapse in the event of an earthquake.

On the other hand, in recent years, building structures have become lighter and more flexible due to the high strength of materials and the development of construction technology. Will occur.

Accordingly, in order to secure stability for the use of the building structure, the vibration of the building structure has been used to control the vibration by installing a base isolation device, a viscoelastic damper, a rubber bearing, and the like.

However, the above methods are not only difficult to cope with the horizontal force for various variables such as wind load, earthquake, dead load, live load, etc., but also have a problem in that vibration damping force is reduced.

On the other hand, in recent years, instead of increasing the rigidity of the structure through the earthquake-resistant design considering only the economics in the past method, a method of dissipating energy generated by the external force of the structure by the vibration isolator is installed.

As a typical vibration damping method, a method of dissipating energy by the hysteretic behavior of the vibration damper according to the displacement between layers by installing a vibration damper such as a damper between structures is known.

The method of installing the vibration damper between floors is effective in terms of performance, but it is very unreasonable in terms of space utilization of the structure.

Accordingly, the present applicant is applied to the vibration damping device for building structures that can be installed on the roof of the building structure, absorbing the movement of the building structure due to earthquake or wind in the multi-directional direction of the liquid to attenuate the vibration of the building structure. Reached.

The problem to be solved in the problem of the background art, according to the present invention, the vibration for the building structure that can absorb and attenuate the horizontal load and vibration generated in the building structure by earthquake, etc. in the front and rear and left and right directions of the building structure It is to provide a vibration isolator.

In addition, another problem to be solved by the problems of the background art, according to the present invention, vibration and vibration damping for building structures that can absorb and damp the vertical load and vibration generated in the building structure due to earthquake, and the side reaction force To provide a device.

According to the present invention, in the vibration damping device for a building structure is installed on the roof of the building structure to attenuate the vibration of the building structure, the liquid is accommodated in flow and provided horizontally on the floor surface of the roof A liquid flow tube dispersing a portion of the liquid swept by a load acting on the building structure along the XY axis direction of the bottom surface of the roof; A damper unit disposed between the liquid flow tube and the rooftop surface, the damper unit absorbing and damping vertical, horizontal loads, vibrations, and negative forces between the liquid flow tube and the building structure. Provided is a vibration damping device for a structure.

The liquid flow tube may include: a liquid accommodation tube disposed to be spaced apart from the bottom surface of the roof and in which liquid is flowably received; Branched from the liquid container tube in the XY axis direction horizontal to the bottom surface of the rooftop to disperse a portion of the liquid which flows in the liquid container tube in the XY axis direction by a load acting on the building structure It includes a plurality of liquid dispersion tube.

The plurality of liquid dispersion pipes extend from the plurality of liquid dispersion pipes in the Z-axis direction perpendicular to the bottom surface of the rooftop to guide the liquid introduced into the liquid dispersion pipe to flow in the Z-axis direction of the bottom surface of the rooftop. It may further include a guide of the.

A plurality of liquid passage hole through which the liquid passes through is formed, and further comprising a damping block for damping the horizontal force of the liquid received in the liquid dispersion tube flowing into the liquid dispersion tube, thereby the flow of the liquid by the liquid ripples It can weaken and distribute momentary loads.

The damping block is made up of at least one pair, so that it is possible to further distribute the instantaneous load due to the swelling of the liquid.

It is installed in the liquid receiving tube, by further comprising a plurality of shut-off valves for opening and closing the liquid receiving tube to block and unblock the flow of the liquid in the liquid receiving tube, it is possible to easily clean and maintain the liquid flow tube Will be.

The damper unit includes: at least one first damper for controlling the vertical load and the side force acting on the liquid flow pipe and the building structure, and absorbing and damping vertical vibrations; At least one second damper for absorbing and damping horizontal vibrations acting on the liquid flow tube and the building structure; It is preferable to include a third damper to elastically support the liquid flow tube, and to control the vibration, the negative reaction force, the X-Y axis displacement generated in the liquid flow tube.

The first damper is disposed below the central region of the liquid receiving tube, the second damper is disposed below the branched region of the liquid containing tube and the liquid dispersion tube, and the third damper is disposed below the liquid dispersion tube. It is more effective to be deployed.

Therefore, according to the solution of the above problem, the horizontal load and vibration generated in the building structure due to earthquake, wind load, etc. can be absorbed and damped in the front, rear, left and right directions of the building structure. In addition, it is to provide a vibration damping device for a building structure that can absorb and attenuate the load and vibration in the vertical direction generated by the earthquake, and the side reaction force.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings. 1 to 13 show a vibration damping device for a building structure according to the present invention. As shown in these figures, the vibration damping device 10 for a building structure according to the present invention is installed on the roof 3 of the building structure 1 to damp the vibration of the building structure 1.

Vibration vibration suppression apparatus 10 for a building structure according to the present invention, the liquid is movably received and the part of the liquid slid by the load acting on the building structure (1) in the XY axis direction of the bottom surface of the roof (3) Vertical and horizontal loads between the liquid flow tube 11 and the roof structure 3 and the liquid flow tube 11 and the roof top 3, Damper units that absorb and damp vibrations and negative forces (forces that rise up in an earthquake).

The liquid flow pipe 11 has a hollow pipe shape, is spaced apart from the bottom surface of the roof 3, and accommodates a liquid receiving pipe 13 in which liquid is flowably received, and a load applied to the building structure 1. A plurality of liquid dispersion tubes 15 for dispersing a portion of the liquid swelling in the liquid accommodation tube 13 in the XY axis direction of the bottom surface of the rooftop 3, and the liquid introduced into the liquid dispersion tube 15. It includes a plurality of guide tubes 17 for guiding the flow in the Z-axis direction of the bottom surface of the rooftop (3).

The liquid container tube 13 is horizontally spaced apart from the bottom surface of the rooftop 3. The liquid accommodation pipes 13 in this embodiment are arranged in a lattice shape so as to communicate with each other in the X-Y axis direction horizontal to the bottom surface of the rooftop 3. The liquid receiving pipe 13 can be used as a water tank of the building structure 1. Therefore, in normal times, water from the outside may be stored and used in the liquid receiving tube 13, and when the water is reduced, the water in the liquid receiving tube 13 may be automatically filled to maintain a constant water level.

The liquid dispersion pipe 15 has the same cross-sectional shape and size as the liquid accommodation pipe 13, and extends toward the outside of the building structure 1 along the periphery of the liquid accommodation pipe 13, that is, at the bottom of the rooftop 3. It branches off from the liquid accommodation tube 13 in the XY axis direction. A part of the liquid which sways in the liquid receiving tube 13 is drawn in and out of the liquid dispersion tube 15 by the load acting on the building structure 1.

The guide tube 17 extends vertically above the building structure 1 from the distal end of each liquid dispersion tube 15. That is, the guide pipe 17 extends in the Z-axis direction perpendicular to the bottom surface of the rooftop 3. As a result, the liquid dispersion pipe 15 may be swung and some of the liquid flowing may be retracted into the guide pipe 17.

On the other hand, as shown in Figure 3, in the liquid dispersion pipe 15 of the vibration damping device 10 for a building structure according to the present invention, damping block for weakening the flow of liquid due to the swelling of the liquid and dispersing the instant load (21) is provided. As shown in FIG. 4, the damping block 21 is formed with a plurality of liquid passage holes 23 through which liquid passes, and the liquid flowing into the liquid dispersion tube 15 passes through the liquid passage hole 23. As it passes, it attenuates the horizontal force of the liquid. The damping block 21 may be installed to be detachable from the side of the distal end of the multi-directional liquid dispersion pipe 15. The damping block 21 forms a plurality of liquid passage holes 23 having different sizes, and a pair of damping blocks 21 are installed in the liquid dispersion pipe 15 in a double manner to allow the liquid to pass through each damping block 21. By positioning the balls 23 in the same position, the flow of liquid can be weakened so that the instantaneous horizontal force and vibration are attenuated controlled over the first and second orders. Of course, by varying the height of the liquid passage hole 23 of each damping block 21 to prevent the smooth flow of the liquid may be attenuated horizontal force and vibration. Damping block 21 can be used in any material to suit the site conditions, such as steel, non-ferrous metal, reinforced concrete, engineering reinforced plastics.

In addition, as shown in FIG. 5, the liquid accommodation tube 13 includes a plurality of shutoff valves 31 that open and close the liquid accommodation tube 13 to block and unblock the flow of the liquid in the liquid accommodation tube 13. It is installed. As shown in FIG. 6, the shutoff valve 31 allows the gate 33 to open and close the liquid container tube 13, and the gate 33 to elevate the gate 33 so that the gate 33 opens and closes the liquid container tube 13. The lift motor 37 and the wire 39 connecting the gate 33 and the lift motor 37 are provided.

The sealing material 35 which seals between the gate 33 and the liquid accommodating tube 13 is attached to the circumference | surroundings of the gate 33 which faces the bottom and both inner walls of the liquid accommodating tube 13. Here, the gate 33 may be any material, such as steel, non-ferrous metals, engineering reinforced plastics, and may use a material suitable for site conditions.

Therefore, when the gate 33 is opened to allow liquid to flow in the liquid receiving tube 13, and the liquid receiving tube 13, the liquid dispersion tube 15, and the guide tube 17 are normally maintained. In addition, the gate 33 is blocked so that the central region of the liquid receiving tube 13 maintains the liquid as it is in case of an emergency so that the function can be operated as it is, and the remaining liquid receiving tube 13 is removed to maintain cleaning and the like. After the maintenance, the liquid is filled again to operate the liquid receiving tube 13, and then the liquid is removed from the liquid receiving tube 13 located in the center area to complete the maintenance such as cleaning, and then the liquid is contained again. The gate 33 is opened in the state in which the tube 13 is filled with a liquid of normal capacity so that the function of the entire liquid receiving tube 13 is normalized.

On the other hand, the liquid flow pipe 11 may use any material, such as reinforced concrete, steel, nonferrous metal, engineering reinforced plastics.

In addition, by providing a heat insulating material on the outer circumference of the liquid flow tube 11, the liquid flow tube 11 can be kept warm to prevent the liquid flowing in the liquid flow tube 11 from freezing in winter.

In addition, the liquid flow pipe 11 may be provided with an automatic detection sensor and a manual buoy for automatically detecting the liquid inside the liquid flow pipe 11 or at the same time separately or at the same time. The visual gauge (18) for checking and the inspection passage can be installed in various places.

As shown in FIG. 7, the damper unit controls the vertical load and the side force acting on the liquid flow pipe 11 and the building structure 1, and the plurality of first dampers 43 which absorb and attenuate the vibration in the vertical direction. ), A plurality of second dampers 61 for absorbing and damping horizontal vibrations acting on the liquid flow pipe 11 and the building structure 1, and the liquid flow pipe 11 while elastically supporting the liquid flow pipe 11 And a third damper 81 for controlling the vibration, the negative reaction force, and the XY axis displacement generated at (11).

The first damper 43 is disposed below the central region of the liquid receiving tube 13. In the present embodiment, four first dampers 43 are provided, and the quantity of the first dampers 43 may be changed according to the magnitude of the load acting on the liquid flow pipe 11 and the building structure 1.

As shown in FIGS. 8 and 9, the first damper 43 includes a first upper plate 45 and a first lower plate 49 installed in the liquid receiving tube 13 and the building structure 1, respectively. An elastic support 53 for absorbing and damping vertical vibrations while supporting a vertical load between the liquid flow pipe 11 and the building structure 1, and a first upper plate 45 and a first lower plate 49. And a plurality of damping cylinder units 55 for controlling the side reaction force and absorbing and damping the horizontal vibration between the liquid flow pipe 11 and the building structure 1.

The elastic support 53 is made of an elastic body such as rubber of a circular or square block shape.

The damping cylinder unit 55 is disposed along the circumference of each side of the elastic support 53. The damping cylinder unit 55 has a cylinder body 57 for receiving a working fluid, a piston (not shown) accommodated in the cylinder body 57, and a rod 59 for supporting and reciprocating the piston.

The cylinder body 57 and the rod 59 are connected to the second bracket 51 of the first lower plate 49 and the first bracket 47 of the first upper plate 45, respectively.

Thus, when the length of the rod 59 protruding from the cylinder body 57 is reduced by the external force of the damping cylinder unit 55, the piston presses the working fluid in the cylinder body 57 and a viscous resistance of the working fluid is generated. To absorb and attenuate vibrational energy. On the other hand, when the external force applied to the damping cylinder unit 55 is removed, the working fluid in the cylinder body 57 is pressed to move the piston to its original position, the rod 59 is extended from the cylinder body 57 It has a length in its original state and protrudes from the cylinder body 57.

Thus, when an earthquake or an external force acts on the liquid flow tube 11 and the building structure 1, the vertical load and the reaction force between the liquid flow tube 11 and the building structure 1 are supported by the elastic support 53. At the same time, the vibration energy in the vertical direction is also absorbed and attenuated by the elastic support 53.

In addition, when a horizontal displacement in which the liquid flow pipe 11 is relatively horizontally moved in one direction with respect to the building structure 1 by an external force occurs, the rod 59 of the damping cylinder unit 55 corresponds to the horizontal displacement. When the length of the rod 59 protruding from the main body 57 is reduced, resistance of the working fluid is generated as the piston presses the working fluid in the cylinder body 57, so that the liquid flow pipe 11 and the building structure 1 Absorb and attenuate the horizontal vibration energy generated between

On the other hand, when the external force acting on the liquid flow pipe 11 is removed, the elastic support 53 is to support the vertical load. In addition, the working fluid in the cylinder body 57 of the damping cylinder unit 55 presses the piston to move to its original position, and the rod 59 extends from the cylinder body 57 to its original length and vibrates. The vibration damping device 10 is restored to its original position before horizontal movement, thereby increasing the damping effect.

Accordingly, the first damper 43 catches the side reaction force acting on the liquid flow pipe 11, and receives and buffers the primary load of the liquid flow pipe 11 to secondaryly load the building structure 1. Dispersion and absorb and damp vertical vibrations.

The second damper 61 is disposed below the branching region of the liquid container tube 13 and the liquid dispersion tube 15. As shown in FIGS. 10 and 11, the second damper 61 includes a second upper plate 63 and a second lower plate 65 installed in the liquid container tube 13 and the building structure 1, respectively. A sliding pad 67 interposed between the second upper plate 63 and the second lower plate 65 for slidingly supporting the vibration isolating device 10 according to the present invention with respect to the building structure 1, and the second lower plate ( As long as the sliding rigid body 69 is provided between the sliding pad 67 and the sliding pad 67, and protrudes from the plate surface of the second lower plate 65 with the sliding pad 67 interposed therebetween. A pair of second keys 71 and a second key receiving portion 73 recessed and formed in the second upper plate 63 to accommodate one end of each second key 71.

The sliding pad 67 is provided between the second upper plate 63 and the sliding rigid body 69 to transmit the load, rotation, and movement of the direction transmitted from the liquid flow pipe 11 to the building structure 1. Here, the sliding pad 67 is preferably made of a rubber material excellent in shear deformation.

When the sliding rigid body 69 is displaced in the liquid flow tube 11 and the liquid flow tube 11 is moved, the sliding rigid body 69 is the second lower plate along the moving direction of the liquid flow tube 11. It slides on the upper side of 65.

The pair of second keys 71 are spaced apart from the plate surface of the second lower plate 65 facing the second upper plate 63 and protruded from each other.

On the plate surface of the second upper plate 63, a second key receiving portion 73 through which one end of each second key 71 is coupled is formed. The second key receiving portion 73 has a long hole shape so that the second key 71 can move along the moving direction of the liquid flow pipe 11.

As a result, since the second key 71 moves in the second key receiving portion 73, the movement of the liquid flow pipe 11 in the X-axis and Y-axis directions can be restricted.

Accordingly, the second damper 61 separates the vibration between the building structure 1 and the liquid flow tube 11, absorbs the stretching action of the displacement of the X and Y axes of the liquid flow tube 11, and the liquid It serves to maintain the horizontal level of the flow pipe (11).

The third damper 81 is disposed below the liquid dispersion tube 15. As shown in FIGS. 12 and 13, the third damper 81 includes a third upper plate 83 and a third lower plate 85 installed in the liquid dispersion pipe 15 and the building structure 1, respectively. An elastic pad 87 interposed between the third upper plate 83 and the third lower plate 85 to elastically support the liquid flow tube 11 with respect to the building structure 1, and the elastic pad 87 therebetween. A third key receiving portion recessed and formed in the third upper plate 83 so as to receive a pair of third keys 89 protruding from the plate surface of the third lower plate 85 and one end of each third key 89. Has 91.

The elastic pad 87 is formed of a replaceable circular or square block rubber material. The elastic pad 87 allows a compressive force to be applied to the load of the liquid flow tube 11 and a shear force to be applied to the displacement of the liquid flow tube 11 in the horizontal direction. However, the elastic pad 87 is not necessarily formed of rubber, and may be substituted with a material such as compressed styrofoam, sponge, or elastically deformable engineering plastic.

The pair of third keys 89 are spaced apart from the plate surface of the third lower plate 85 facing the third upper plate 83 and protruded from each other.

The third key receiving portion 91 through which one end of each third key 89 is coupled is formed in the plate surface of the third upper plate 83. The third key receiving portion 91 has a long hole shape such that the third key 89 is movable along the moving direction of the liquid flow tube 11.

As a result, since the third key 89 moves in the third key receiving portion 91, the movement of the liquid flow pipe 11 in the X-axis and Y-axis directions can be restricted.

Thus, the third damper 81 controls the vibration separation between the building structure 1 and the liquid flow pipe 11, the secondary reaction force control, the displacement of the X-axis and Y-axis.

Here, reference numeral 19, which is not described, is a hatch for maintaining and checking the inside of the liquid flow pipe 11. Hatch 19 is provided in plurality on the upper side of the liquid flow pipe 11, to prevent accidental safety accidents of workers.

On the other hand, the upper portion of the liquid flow pipe 11 of the vibration damping device 10 according to the present invention, as shown in Figure 14, by installing a rest space can also be utilized as a nature-friendly space in normal times.

By such a configuration, when the vibration damping device 10 for a building structure according to the present invention generates loads and vibrations in the vertical and horizontal directions to the building structure 1 by vibrations such as earthquakes, the liquid flow pipe 11 The liquid inside flows in only one direction by the inertial force and does not swell, but the horizontal force of the liquid is dispersed in the XY-axis direction with respect to the bottom surface of the rooftop 3 so as to act on the building structure 1 Absorb and dampen horizontal loads and vibrations.

Meanwhile, the first damper 43 of the damper unit catches the vertical load and the reaction force acting on the liquid flow pipe 11, receives the primary load of the liquid flow pipe 11, and buffers it to the building structure 1. Secondly, it distributes the load and absorbs and damps vertical vibrations.

In addition, the second damper 61 separates the vibration between the building structure 1 and the liquid flow tube 11, absorbs the stretching action of the displacement of the X and Y axes of the liquid flow tube 11, the liquid The horizontal level of the flow pipe 11 is maintained.

In addition, the third damper 81 controls vibration separation between the building structure 1 and the liquid flow pipe 11, control of negative reaction force, and displacement of the X and Y axes.

Therefore, the vibration isolating device 10 according to the present invention is a liquid in one direction by vibration, such as earthquake, through the installation of the liquid flow pipe 11 connected to the front and rear, left and right, rather than the existing simple water tank. It is possible to prevent the oscillation of the structure and to attenuate the vibration acting on the building structure (1), and also to isolate the vibration between the liquid flow pipe (11) and the building structure (1) and to prevent the side reaction force, the liquid flow pipe (11) By restoring the position of the building structure 1 and maximizes the seismic effect, the liquid flow pipe 11 and the building structure 1 can be restored to the original position. In addition, it can cope with the vibration that may occur during the maintenance of the liquid flow tube 11, it is possible to absorb the vibration displacement of the multi-direction, to absorb the displacement force of the liquid with respect to the instantaneous horizontal force.

1 is a perspective view of a vibration damping device for a building structure according to the present invention;

2 is a perspective view of the liquid flow tube of FIG.

Figure 3 is a view showing the installation position of the damping block in the liquid flow pipe of Figure 1,

4 is a perspective view of the damping block of FIG. 3, FIG.

5 is a view showing the installation position of the shutoff valve in the liquid flow pipe of FIG.

Figure 6 is a perspective view of the shutoff valve of Figure 5,

7 is a schematic plan view showing the position of the damper in the liquid flow tube of FIG.

8 is a plan view of the first damper;

9 is a longitudinal sectional view of FIG. 8;

10 is a plan view of the second damper,

11 is a longitudinal sectional view of FIG. 10;

12 is a plan view of the third damper;

13 is a longitudinal sectional view of FIG. 12;

14 is a perspective view of a building structure having a vibration damping device for a building structure according to an embodiment of the present invention.

Explanation of symbols on the main parts of the drawings

1: building structure 3: rooftop

10 vibration damper 11 liquid flow tube

13: liquid receiving tube 15: liquid dispersion tube

17: guide 21: damping block

23: liquid passage hole 31: shutoff valve

43: first damper 61: second damper

81: third damper

Claims (8)

In the vibration damping device for a building structure is installed on the roof of the building structure to damp the vibration of the building structure, The liquid receiving tube is spaced apart from the bottom surface of the roof and is flowably received from the liquid receiving tube, and branches from the liquid receiving tube in the XY axis direction horizontal to the bottom surface of the roof, respectively, to act on the building structure. A plurality of liquid dispersion tubes for dispersing a portion of the liquid swelling in the liquid receiving tube by vibration in the XY axis direction, and extending from the liquid dispersion tube, respectively, and introducing the liquid introduced into the liquid dispersion tube onto the rooftop. A liquid flow tube provided with a plurality of guide tubes for guiding flow in the Z-axis direction of the bottom surface of the liquid crystal tube; A damper unit disposed between the liquid flow tube and the rooftop surface, the damper unit absorbing and damping vertical, horizontal loads, vibrations, and negative forces between the liquid flow tube and the building structure. Vibration damper for structures. delete delete The method of claim 1, And a damping block through which the plurality of liquid passage holes through which the liquid passes, is damped in the liquid dispersion tube and attenuates the horizontal force of the liquid flowing into the liquid dispersion tube. . 5. The method of claim 4, The damping block is a vibration damping device for a building structure, characterized in that consisting of at least one pair. The method of claim 1, And a plurality of shutoff valves installed in the liquid receiving tube and opening and closing the liquid receiving tube to block and unblock the flow of the liquid in the liquid receiving tube. The method of claim 1, The damper unit, At least one first damper that controls the vertical load and the subforce force acting on the liquid flow pipe and the building structure, and absorbs and attenuates vertical vibration; At least one second damper for absorbing and damping horizontal vibrations acting on the liquid flow tube and the building structure; And a third damper elastically supporting the liquid flow tube and controlling a vibration, a negative force, and an X-Y-axis displacement occurring in the liquid flow tube. The method of claim 7, wherein The first damper is disposed below the central region of the liquid receiving tube, the second damper is disposed below the branched region of the liquid containing tube and the liquid dispersion tube, and the third damper is disposed below the liquid dispersion tube. Vibration damping device for a building structure, characterized in that disposed.

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