KR20210112567A - Wire damping apparatus for walls - Google Patents

Abstract

The present invention relates to a wire damping apparatus for a wall which installs a wire damper consisting of a damping wire penetrating and connecting a pair of fixing blocks in a ring shape on one side of a wall or inside a frame of an existing structure to secure excellent seismic performance and have a uniform damping force to realize stable damping performance, and effectively absorbs multi-axis vibration and impacts for a horizontal load to secure structural stability. The wire damping apparatus for a wall is installed on one side of a wall or inside a frame of an existing structure, and comprises a wire damper consisting of a pair of fixing blocks provided to be separated from each other and having a plurality of penetration holes arranged in a longitudinal direction, and a damping wire penetrating the penetration holes of the pair of fixing blocks in a ring shape to connect the pair of fixing blocks.

Description

Wire damping apparatus for walls

The present invention secures excellent seismic performance and provides a uniform damping force by installing a wire damper composed of a damping wire that penetrates and connects a pair of fixed blocks in a ring shape on one side of the wall or inside the frame of the existing structure. It is about a wall-type wire vibration damping device that can achieve structural stability by effectively absorbing multi-axis vibrations and shocks for horizontal loads.

Recently, the frequency of earthquakes has been increasing worldwide, and since the Gyeongju earthquake with a magnitude of 5.8 in 2016, large and small earthquakes have occurred in Korea, so it is no longer a safe area for earthquakes.

Accordingly, the demand for securing the seismic performance of structures is increasing, and related laws and regulations are being strengthened.

Therefore, a performance-based design method was introduced, in which a seismic performance target was set for a structure in advance and seismic design was performed accordingly. In addition, research to effectively block or dissipate energy applied to structures by seismic loads is accelerating.

In particular, in high-rise buildings, various structural systems have been developed and applied to efficiently resist lateral forces caused by seismic loads as well as gravity loads. In addition, the demand for seismic reinforcement for buildings built before seismic design was introduced or for existing low-rise buildings to which seismic design regulations were not applied because they were excluded from seismic design targets is increasing.

Accordingly, in the prior Patent Registration No. 10-1951450, a technology capable of dissipating energy by deformation of a damper in which a slit is formed has been proposed. However, the registration technique has disadvantages in that the design is complicated because the stiffness of the dampers in the x, y, and z axes are different from each other, and it is difficult to expect a damping effect for multi-axis excitation. In addition, the slit damper is vulnerable to buckling, there is a limit to the allowable displacement, and the fatigue strength of the slit damper is weak, so there is a limit to the durability life.

In addition, Patent Registration No. 10-1456221 discloses a vibration damping device in which energy is dissipated by a damper unit in which a viscoelastic material is laminated between a plurality of steel plates. However, it is difficult to expect the attenuation effect for the multiaxial excitation in the registration technique as well. In addition, the use of a viscoelastic material is expensive, and since the dissipation capacity of the damper unit is greatly affected by the area of the steel plate and the viscoelastic material, there is a problem in that the size of the damper unit becomes excessively large in order to secure a large energy dissipation capacity. In addition, these viscoelastic materials are weak at high temperatures, so a separate fireproof treatment is required.

In order to solve the above problems, an object of the present invention is to provide a wall-type wire vibration damping device that can be installed in an existing structure, etc., and can realize stable vibration damping performance against earthquakes with uniform damping force while securing excellent seismic performance.

An object of the present invention is to provide a wall-type wire damping device capable of securing structural stability by effectively absorbing multi-axis vibration and shock for horizontal loads such as earthquakes.

The present invention according to a preferred embodiment relates to a wall-type wire vibration damping device installed inside a frame or one side of a wall of an existing structure, and a pair of fixed blocks provided to be spaced apart from each other and having a plurality of through-holes disposed in the longitudinal direction, respectively and a wire damper formed of a damping wire connecting the pair of fixing blocks by penetrating the through-holes of the pair of fixing blocks in a ring shape.

The present invention according to another preferred embodiment provides a wall-type wire vibration damping device, characterized in that the damping wire is formed in a spiral form sequentially penetrating a plurality of through-holes arranged in the longitudinal direction of the fixing block.

The present invention according to another preferred embodiment provides a wall-type wire damping device, characterized in that the vibration damper is provided with at least two or more wire dampers and is connected in series with each other.

The present invention according to another preferred embodiment provides a wall-type wire damping device, characterized in that the adjacent wire dampers are connected by coupling the fixing blocks to each other.

In the present invention according to another preferred embodiment, a T-shaped shear key is protruded from the fixed block bonding surface of one side among the fixing blocks connecting the neighboring wire dampers, and the T-type shear key is inserted into the corresponding other fixed block bonding surface. To provide a wall-type wire vibration damping device, characterized in that the fitting groove of the shape corresponding to the T-shaped shear key is formed.

The present invention according to another preferred embodiment is a wall-type wire damping characterized in that the coupling protrusions of the L-shaped cross-section are formed protruding from the bonding surfaces of the fixing blocks connecting the neighboring wire dampers, and the coupling protrusions are coupled to engage each other. provide the device.

The present invention according to another preferred embodiment provides a wall-type wire vibration damping device, characterized in that a control tube is provided between the through hole and the damping wire.

According to the present invention as described above, there are the following effects.

First, it is possible to provide a vibration damping device including a wire damper that is provided inside a frame of an existing structure or on one side of a wall and includes a damping wire that penetrates and connects a pair of fixing blocks in a ring shape. Accordingly, since the damping force and ductility can be greatly increased by the excellent ductility of the damping wire, it is possible to secure excellent seismic performance against seismic loads and realize excellent vibration damping performance.

Second, since the damping wire is circularly arranged in a ring shape, it is possible to sufficiently secure the damping effect for multiaxial excitation unlike the existing damping device.

Third, various damping ratios can be realized by adjusting the number or diameter of damping wires, and stable vibration damping performance can be realized by securing a uniform damping force.

1 is a perspective view showing a wall-type wire vibration isolation device of the present invention.
Figure 2 is a perspective view showing the coupling relationship of the separable fixed block.
3 is a front view showing a state in which the reinforcement frame type vibration damping device is installed.
Fig. 4 is a front view showing a state in which a bracing type vibration damping device is installed;
5 is a perspective view showing a wire damper provided with a spiral damping wire.
6 is a view showing various embodiments of a spiral damping wire.
7 is a perspective view showing an embodiment in which a plurality of wire dampers are connected in series;
8 is a perspective view showing a coupling state of a wire damper connected in series according to an embodiment.
Figure 9 is a perspective view showing the coupling relationship of the fixed block by the T-shaped shear key.
10 is a perspective view showing a coupling state of a wire damper connected in series according to another embodiment.
11 is a perspective view showing the coupling relationship of the fixing block by the coupling protrusion.
Fig. 12 is a perspective view showing an embodiment of an adjustment tube;
13 is a perspective view showing a coupling relationship between the control tube and the damping wire.

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

Figure 1 is a perspective view showing a wall-type wire vibration isolation device of the present invention, Figure 2 is a perspective view showing the coupling relationship of the detachable fixed block. And Fig. 3 is a front view showing a state in which the reinforcing frame-type damping device is installed, and Fig. 4 is a front view showing a state in which the bracing-type damping device is installed.

1, 2, etc., the present invention wall-type wire vibration damping apparatus is installed inside the frame or one side of the wall of the existing structure (1), provided to be spaced apart from each other, a plurality of penetrations each arranged in the longitudinal direction A damping wire ( 42), characterized in that it is configured to include a wire damper (40).

The present invention secures excellent seismic performance and has a uniform damping force so that it can stably implement vibration damping performance against earthquakes, and can effectively absorb multi-axis vibrations and shocks against horizontal loads such as earthquakes to ensure structural stability. An object of the present invention is to provide a wire damping device.

The present invention wall-type wire damping device (4) is installed inside the frame or one side of the wall of the existing structure (1).

The vibration damping device 4 may be attached to the existing structure 1 to reinforce the existing structure 1 , or may be integrally installed in a new building.

By the damping force and ductility of the vibration damping device (4), energy generated in the structure by the horizontal load is absorbed and dissipated.

The wall-type wire damping device 4 includes a wire damper 40 composed of a pair of fixing blocks 41 provided to be spaced apart from each other and a damping wire 42 connecting the pair of fixing blocks 41 . consists of including

That is, the wire damper 40 is arranged such that a pair of fixing blocks 41 are spaced apart from each other, and the fixing blocks 41 are interconnected by a ring-shaped damping wire 42 .

To this end, a through hole 411 through which the damping wire 42 passes in the width direction is formed in each of the fixing blocks 41 .

A plurality of the through holes 411 are formed to be spaced apart from each other in the longitudinal direction of the fixing block 41 .

The fixing block 41 not only is coupled to a damping wire 42 to be described later, but also serves to fix the vibration damping device 4 to another member.

The damping wire 42 penetrates and connects the through-holes 411 of the pair of fixing blocks 41 in a ring shape, and may be formed of a steel wire or a stranded wire.

By using the excellent ductility of the damping wire 42 as a damper, the damping force and ductility of the vibration damping device 4 can be greatly increased.

Energy is dissipated by shear or tensile deformation of the damping wire 42 when the relative displacement of the adjacent fixed blocks 41 occurs.

Since the damping wire 42 is circularly arranged in a ring shape, it is possible to secure a damping effect for multi-axis excitation unlike a conventional damping device.

Unlike the conventional technology in which it is difficult to change the damping ratio using a conventional damping plate, in the present invention, various damping ratios can be implemented by adjusting the number or diameter of the damping wires 42 .

Therefore, it is possible to secure excellent seismic performance against seismic loads with stable ductility and damping force, and to realize excellent vibration damping performance.

As shown in FIG. 2 , the fixing block 41 is divided into upper and lower parts to facilitate the coupling of the fixing block 41 and the damping wire 42 to the first unit 41 ′ when the vibration damping device 4 is manufactured. and a second unit 41".

Semicircular grooves are formed to correspond to the bonding surfaces of the first unit 41' and the second unit 41", respectively, so that a through hole is formed when the first unit 41' and the second unit 41" are combined. (411) can be configured to form.

The first unit 41' and the second unit 41" can be coupled by bolts, welding, or the like.

3 and 4 show the vibration damping device 4 installed in the existing structure 1 .

As shown in (a) of FIG. 3 , the vibration damping device 4 may be installed between the upper reinforcing frame 2a and the lower reinforcing frame 2b installed inside the frame of the existing structure 1 .

In this case, when the relative displacement of the upper and lower reinforcing frames 2a and 2b occurs, energy is dissipated by the shear deformation of the vibration damping device 4 as shown in FIG. 3(b).

In addition, the vibration damping device 4 may be installed at the end of the brace 3 installed inside the frame of the existing structure 1 as shown in Fig. 4 (a).

In this case, when the relative displacement between the frame and the brace 3 occurs, energy is dissipated by the shear deformation of the vibration damping device 4 as shown in FIG. 4B .

The vibration damping device 4 may be attached to the wall as well as the inside of the frame of the existing structure 1 .

Figure 5 is a perspective view showing a wire damper provided with a spiral damping wire, Figure 6 is a view showing various embodiments of the spiral damping wire.

As shown in FIGS. 5 and 6 , the damping wire 42 may be formed in a spiral shape that sequentially penetrates a plurality of through holes 411 disposed in the longitudinal direction of the fixing block 41 .

The damping wire 42 may be configured as one closed ring member, or may be configured in a continuous spiral shape as shown in FIG. 5 .

Since the damping wire 42 in the form of a spiral reinforcing bar continuously restrains the deep concrete, the concrete restraint effect is excellent and the ductility ability is more excellent.

The spiral damping wire 42 may be configured in a hoop type as shown in (a) of FIG. 6 or as a one-way spiral as shown in FIG. In addition, it may be configured in a symmetrical spiral as shown in FIG. 6(c).

When the damping wire 42 is formed symmetrically, the same behavioral characteristics can be exhibited in both directions.

7 is a perspective view illustrating an embodiment in which a plurality of wire dampers are connected in series.

As shown in FIG. 7 , the vibration damping device 4 may include at least two wire dampers 40a and 40b and are connected in series to each other.

When the allowable displacement of the existing structure 1 or the energy to be dissipated is large, it may be configured by increasing the interval between the fixing blocks 41 and increasing the length of the damping wire 42 .

In this case, as the length of the damping wire 42 increases, bending deformation occurs in the damping wire 42, making it difficult to dissipate energy by shearing, tension, or compression.

Therefore, the damping force is maintained by minimizing the length of the damping wire 42 , and instead, the allowable displacement of the entire vibration damping device 4 is increased by connecting a plurality of wire dampers 40a and 40b in series.

Accordingly, the ductility and damping force of the vibration damping device 4 can be maximized.

At this time, the fixing block 41 connecting the wire dampers 40a and 40b between the adjacent wire dampers 40a and 40b may be integrally formed.

That is, the damping wires 42a and 42b of the upper and lower wire dampers 40a and 40b can be connected to one fixed block 41 located in the middle.

To this end, one side of the fixing blocks 41a and 41b facing the wire dampers 40a and 40b may be connected to each other and disposed in series.

In some cases, the fixing blocks 41a and 41b connecting the adjacent wire dampers 40a and 40b may be integrally formed.

8 is a perspective view illustrating a coupling state of a wire damper connected in series according to an embodiment.

As shown in Figure 8, the adjacent wire dampers (40a, 40b) can be connected by coupling the fixing blocks (41a, 41b) to each other.

As shown in FIG. 7, the adjacent wire dampers 40a and 40b share the connected fixing blocks 41a and 41b and can be connected in series, but as shown in FIG. 8, each wire damper 40a, 40b may be separately provided, and the fixing blocks 41a and 41b of the adjacent wire dampers 40a and 40b may be coupled to each other to be connected.

Accordingly, it is possible to connect a desired number of wire dampers 40a and 40b in series in consideration of the size of the horizontal load and allowable displacement.

The adjacent fixing blocks 41a and 41b can be joined by bolts, welding, or the like.

9 is a perspective view showing the coupling relationship of the fixed block by the T-shaped shear key.

As shown in FIGS. 8 and 9 , a T-shaped shear key 412 protrudes from the bonding surface of the fixing block 41a on one side of the fixing blocks 41a and 41b connecting the neighboring wire dampers 40a and 40b. A fitting groove 413 having a shape corresponding to the T-shaped shear key 412 may be formed in the bonding surface of the corresponding other side of the fixing block 41b so that the T-shaped shear key 412 is inserted.

By combining the T-shaped shear key 412 and the fitting groove 413, the adjacent wire dampers 40a and 40b may be connected.

A T-shaped shear key 412 is protruded from one side of the fixed block 41a, and a T-shaped fitting groove 413 corresponding to the shape of the T-shaped shear key 412 is formed in the other fixed block 41b, and they are mutually fitted together. can be fixed.

In this case, when a relative displacement between the wire dampers 40a and 40b occurs due to a horizontal load, the T-shaped shear key 412 slides inside the fitting groove 413 and additional energy can be dissipated by frictional force.

A friction pad may be provided on the joint surface of the T-shaped shear key 412 and the T-shaped fitting groove 413 .

The fitting groove 413 should be formed so as not to interfere with the through hole 411 of the fixing block 41 .

10 is a perspective view illustrating a coupling state of a wire damper connected in series according to another embodiment, and FIG. 11 is a perspective view showing a coupling relationship of a fixing block by a coupling protrusion.

As shown in FIGS. 10 and 11, coupling protrusions 414a and 414b of L-shaped cross section are formed protruding from the joint surfaces of the fixing blocks 41a and 41b connecting the adjacent wire dampers 40a and 40b, respectively. The coupling protrusions 414a and 414b may be coupled to be engaged with each other.

For coupling of the vertical adjacent fixing blocks 41a and 41b, both fixing blocks 41a and 41b may form coupling protrusions 414a and 414b having a L-shaped cross-section, respectively, on the surfaces facing each other. Accordingly, it is possible to use the fixing blocks 41a and 41b having the same shape, so that manufacturing and management are easy.

As in the case of the aforementioned T-shaped shear key 412, energy dissipation is possible by frictional force during sliding movement between the coupling protrusions 414a and 414b.

In addition, the coupling protrusions 414a and 414b of the L-shaped cross-section against the horizontal load in the out-of-plane direction of the wall are capable of additional energy dissipation by the deformation of the coupling protrusions 414a and 414b itself.

A locking protrusion 415 may be protruded inside the end portions of the coupling protrusions 414a and 414b to prevent the out-of-plane direction departure.

12 is a perspective view illustrating an embodiment of the control tube, and FIG. 13 is a perspective view illustrating a coupling relationship between the adjustment tube and the damping wire.

12 and 13 , a control tube 43 may be provided between the through hole 411 and the damping wire 42 .

In the present invention, it is possible to implement various damping ratios by adjusting the number or diameter of the damping wires 42 .

Therefore, the diameter of the through hole 411 is larger than the diameter of the damping wire 42 so that the damping wire 42 of various diameters can be used in the fixed block 41 of a single standard, and the through hole 411 and the damping wire are formed. The adjustment tube (43) can be filled in the clearance between (42).

In particular, by using the control tube 43 having the same inner diameter as the diameter of the damping wire 42, it can be configured to apply the damping wire 42 of various diameters to the through hole 411 of the same diameter.

The control tube 43 is preferably formed of a hard elastic member to support the damping wire 42 to absorb vibration. To this end, the control tube 43 may be configured using an earthquake-resistant rubber such as polyamide, polyester, polycarbonate, polyether, or polyurethane.

At both ends of the control tube 43 , flanges 431 that can be caught on both sides of the fixing block 41 to prevent the control tube 43 from being separated can be formed to protrude. In this case, the fixing block 41 may be formed separately into a first unit 41 ′ and a second unit 41 ″ in order to couple the control tube 43 into the through hole 411 .

1: Existing structure 2a: Upper reinforcement frame
2b: lower reinforcement frame 3: brace
4: vibration damper 40, 40a, 40b: wire damper
41, 41a, 41b: fixed block 41': first unit
41": second unit 411: through hole
412: T-shaped shear key 413: fitting groove
414a, 414b: coupling protrusion 415: locking jaw
42, 42a, 42b: damping wire 43: control tube
431: flange

Claims (7)

It relates to a wall-type wire damping device (4) installed inside the frame or on one side of the wall of the existing structure (1),
A pair of fixing blocks 41 provided with a plurality of through-holes 411 arranged in the longitudinal direction to be spaced apart from each other, and the through-holes 411 of the pair of fixing blocks 41 are penetrated in a ring shape. and a wire damper (40) composed of a damping wire (42) connecting a pair of fixing blocks (41) to a wall type wire vibration damping device.
In claim 1,
The damping wire 42 is a wall-type wire vibration damping device, characterized in that it is formed in a spiral form sequentially penetrating a plurality of through-holes 411 arranged in the longitudinal direction of the fixing block (41).
In claim 1,
The vibration damping device (4) is a wall-type wire damping device, characterized in that at least two or more of the wire dampers (40a, 40b) are connected in series with each other.
In claim 3,
The adjacent wire dampers (40a, 40b) is a wall-type wire damping device, characterized in that connected to each other by coupling the fixing blocks (41a, 41b).
In claim 4,
A T-shaped shear key 412 is protruded from one side of the fixing block 41a of the fixing blocks 41a and 41b connecting the neighboring wire dampers 40a and 40b, and the corresponding fixing block 41b on the other side. ) A wall-type wire vibration damping device, characterized in that a fitting groove (413) having a shape corresponding to the T-shaped shear key (412) is formed on the bonding surface so that the T-shaped shear key (412) is inserted.
In claim 4,
Coupling protrusions 414a and 414b of L-shaped cross-section are respectively protruded from the bonding surfaces of the fixing blocks 41a and 41b connecting the adjacent wire dampers 40a and 40b so that the coupling protrusions 414a and 414b are engaged with each other. A wall-type wire damping device, characterized in that it is coupled so as to
In claim 1,
A wall-type wire vibration damping device, characterized in that a control tube (43) is provided between the through hole (411) and the damping wire (42).

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