KR20120000926A

KR20120000926A - Elastomeric supporter and seismic isolation apparatus including the same

Info

Publication number: KR20120000926A
Application number: KR1020100061462A
Authority: KR
Inventors: 김정태
Original assignee: 김정태
Priority date: 2010-06-28
Filing date: 2010-06-28
Publication date: 2012-01-04

Abstract

An elastic support and a base isolation device including the same are disclosed. The disclosed elastic support is disposed between the upper structure and the lower structure, the upper and lower reinforcing plate and the lower reinforcing plate, respectively, the elastic support, the rigid plate member spaced apart from each other and installed in a plurality of layers, the plate member inside An elastic member integrally molded in a state interposed therebetween, and the plate member may include a patterned steel plate having a plurality of uneven parts formed on a surface thereof to increase elasticity and restoring force of the elastic support. Accordingly, the deformation of the elastic support can be prevented, and the deformed elastic support can be quickly returned to the original position, thereby improving the safety of the structure.

Description

Elastic support and seismic isolation device having same {ELASTOMERIC SUPPORTER AND SEISMIC ISOLATION APPARATUS INCLUDING THE SAME}

The present invention relates to an elastic support and a seismic isolator having the same, and more particularly, to an elastic support and a seismic isolator having the same installed to attenuate the vibration transmitted to the structure when the vibration, such as earthquake.

In general, a structure such as a bridge is installed to facilitate the passage of a vehicle, etc., and consists of a structure in which a top plate is installed on a plurality of bridges. Such a structure is required to be dustproof to securely support the structure against vibrations as vibrations are transmitted in accordance with an earthquake as well as wind or vehicle movement.

In addition, since such a structure may be contracted or expanded according to temperature change, a seismic isolator is used as a device for allowing and supporting fine movement of the structure.

The seismic isolator has a lower reinforcement plate installed on the upper part of the bridge and an upper reinforcement plate installed on the bottom of the bridge, and is installed between the lower reinforcement plate and the upper reinforcement plate to absorb vibration and support the bridge to the bridge. And a support.

The elastic support is composed of a rigid plate member spaced apart in multiple layers and an elastic member molded integrally with the plate member interposed therebetween, and the elastic member deforms and absorbs vibration against the horizontal and vertical forces acting on the bridge. .

However, the conventional elastic support has a low coupling force between the plate member and the elastic member, and thus, continuous deformation is made in the process of absorbing the lateral vibration, and the plate member and the elastic member may be separated or separated from each other. A phenomenon in which the member penetrates the elastic member may occur. As such, the conventional elastic support may be abnormally deformed and is frequently repaired or replaced as it ages easily.

The present embodiment is to provide an elastic support and a seismic isolator having the same to increase the elastic force and the restoring force, and to prevent abnormal deformation.

The elastic support according to an aspect of the present invention is disposed between the upper structure and the lower structure, the upper and lower reinforcing plate and the lower reinforcing plate respectively installed, the rigid plate member spaced apart from each other and installed in a plurality of layers and , An elastic member integrally molded in a state in which the plate member is interposed therein, and the plate member includes a patterned steel plate having a plurality of irregularities formed on a surface thereof.

The uneven portion may be formed by press working.

The plate member may further comprise a plurality of holes.

The elastic member may further include a wire cord yarn disposed in a direction orthogonal to the stacking direction of the plate member.

According to another aspect of the present invention, there is provided a seismic isolator according to the above-described elastic support, an upper connecting plate and a lower connecting plate respectively installed on upper and lower portions of the elastic support, and fastening members respectively on the upper and lower portions of the upper connecting plate and the lower connecting plate. And an upper reinforcement plate and a lower reinforcement plate which are fastened as installed in the upper structure and the lower structure, respectively.

Therefore, the bonding force between the plate member and the elastic member can be increased, thereby reducing the phenomenon that the plate member and the elastic material are separated or separated from each other, and prevent the detached plate material from penetrating the elastic material and being exposed to the outside. Can be. In addition, since the deformed elastic support can be quickly returned to its original position, the safety of the structure can be improved. In addition, it is possible to prevent abnormal deformation of the elastic support, to improve the reliability and durability of the product, and to increase the life of the product can reduce the accompanying costs due to frequent replacement or repair.

1 is a cross-sectional view of the base isolation device is installed according to an embodiment of the present invention.
Figure 2 is a plan view showing a plate member of the base isolation device according to an embodiment of the present invention.
3 and 4 are plan views showing the plate member of the base isolation device according to another embodiment of the present invention.
5 is a perspective view partially cut out the elastic support of the seismic isolator according to another embodiment of the present invention.
6 is a perspective view partially cut out the elastic support of the seismic isolator according to another embodiment of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The present invention is capable of various modifications and various embodiments, and specific embodiments are illustrated in the drawings and described in detail in the detailed description.

Hereinafter, an embodiment of the elastic support and the seismic isolation device having the same according to the present invention will be described in detail with reference to the accompanying drawings. In the following description with reference to the accompanying drawings, the same or corresponding components are given the same reference numbers. And duplicate description thereof will be omitted.

FIG. 2 is a cross-sectional view of a seismic isolator according to an embodiment of the present invention, and FIG. 3 is a perspective view partially cut out of an elastic support of the seismic isolator according to an embodiment of the present invention.

2 and 3, the base isolation device 120 according to the present embodiment includes a lower reinforcement plate 122, a lower connection plate 123, an upper reinforcement plate 124, an upper connection plate 125, and an elastic support. 130, the plate member 132, the uneven portion 132a, and an elastic member 134 may be included.

The seismic isolation device 120 of the present embodiment is installed between the structures to support the load of the structure, and absorbs vibrations to improve the safety of the structure.

In the present embodiment, the seismic isolator 120 is described as an example of the structure installed on the bridge as an example of the structure, in addition to the bridge may be installed in various types of structures in which vibration is transmitted between the upper and lower.

As an example, the seismic isolation device 120 of the present embodiment is installed on an upper portion of the pier 112 to support the bridge 114. The seismic isolator 120 is deformed and restored with respect to movements such as vibrations or contractions or expansions transmitted in the lateral direction, and can stably support the bridge 114.

To this end, the seismic isolation device 120 includes a lower reinforcement plate 122 installed on an upper portion of the bridge 112 and an upper reinforcement plate 124 installed on a bottom surface of the bridge 114, and an upper reinforcement plate 124. An elastic support 130 supporting a load is installed between the lower reinforcing plate 122.

In addition, the lower connection plate 123 and the upper connection plate 125 connected to the lower reinforcement plate 122 and the upper reinforcement plate 124 are respectively installed on the lower and upper portions of the elastic support 130.

The lower connecting plate 123 and the upper connecting plate 125 may be fastened as fastening members to the lower reinforcing plate 122 and the upper reinforcing plate 124, respectively.

To this end, the lower connecting plate 123 and the upper connecting plate 125 are formed with fastening grooves, respectively. As an example of the fastening member, the bolt penetrates the lower reinforcing plate 123 and the upper reinforcing plate 125 to be coupled to the fastening groove. do.

On the other hand, between the lower connecting plate 123 and the upper connecting plate 125 is modified and restored to the transverse movement of the bridge 114 is provided with an elastic support 130 for supporting the bridge 114.

The elastic support 130 has a plurality of plate members 132 are spaced apart from each other arranged in a layer structure, the elastic member 134 is filled between the plate members 132 and alternately stacked.

Here, the plate member 132 is formed of a rigid material, and as the bridge 114 of the upper portion moves, the plate member 132 may be gradually inclined and deformed along with the elastic member 134.

In addition, the elastic member 134 may be formed of an elastic material including rubber or urethane, and may be formed of various materials deformed or restored to an external force or a mixture thereof.

In the present embodiment, the distance from which the plate member 132 is spaced apart from each other is not limited, and the design may be changed in consideration of the size or weight of a structure such as the bridge 114 or the bridge 112.

For example, in the present embodiment, the plate member 132 may be formed to be spaced apart from the other plate member 132 by at least 2 mm or more, and the plate member 132 located at the top or bottom thereof may be formed at the top or bottom of the elastic support 130. It may be molded at least 2.5mm apart from the bottom. In addition, the plate member 132 may be formed to be spaced apart from the side of the elastic support 130 by at least 4mm or more.

In addition, the plate member 132 of the present embodiment may include a patterned steel sheet having a plurality of uneven parts 132a formed on the surface thereof. The patterned steel sheet may increase the bonding force when the uneven portion 132a formed on the surface thereof is molded with the elastic member 134.

The uneven parts 132a may be formed in a zigzag shape, and may be continuously formed or short-circuited with each other and arranged independently.

In the present embodiment, the plate member 132 may form the uneven portion 132a by press working, thereby reducing the processing time and cost of the plate member 132. In this embodiment, the method of forming the uneven portion 132a is not limited, and it is of course possible to form the uneven portion 132a by forming a groove or the like on the surface of the plate member 132 using a milling process or the like.

3 and 4 are plan views showing the plate member of the seismic isolator according to another embodiment of the present invention. Referring to FIGS. 3 and 4, the plate member 132 of the present embodiment is molded with the elastic member 134. A plurality of holes 132b and 132c may be formed to increase the coupling force.

For example, referring to FIG. 3, the hole 132b formed in the plate member 132 may be formed to penetrate in a circular shape. In addition, referring to FIG. 4, the hole 132c formed in the plate member 132 may be formed to penetrate through a quadrangle.

As described above, as the elastic members 134 flow into the holes 132b and 132c formed in the plate member 132 and are integrally formed, coupling strength with the plate member 132 may be increased.

In the present embodiment, the holes 132b and 132c formed in the plate member 132 are described in the form of a circle or a square, but the holes 132b and 132c formed in the plate member 132 are a circle or a rectangle. Or it may be formed in various forms such as a polygon containing them.

5 is a perspective view partially cut out the elastic support of the seismic isolator according to another embodiment of the present invention.

Referring to FIG. 5, the elastic member 130 may further include a wire cord yarn 136a. The wire cord yarn 136a may be regularly arranged in a constant direction, and in this embodiment, each wire cord yarn 136a may be regularly arranged in a direction orthogonal to the direction in which the plate member 132 is stacked. have.

The wire cord yarn 136a may include a tire cord yarn or a steel cord yarn. The wire cord yarn 136a may be a wire cord layer 136 inserted between sheets of elastic material. It may be molded in advance.

The wire cord layer 136 may be integrally molded together with the elastic member 134 in a state disposed outside the plate member 132.

In the present embodiment, the wire cord yarn 136a may be arranged in a single line to be continuously bent on and under the sheet of the wire cord layer 136. In this case, the wire cord yarn 136b may be regularly arranged in a direction orthogonal to the direction in which the plate members 132 are stacked in regions except for the upper and lower portions.

6 is a perspective view partially cut out the elastic support of the base isolation device according to another embodiment of the present invention, the wire cord layer 136 is manufactured by placing a plurality of wire cord yarn 136b in a predetermined direction, the elastic support It is also possible to cut and use to have a suitable height according to the size of (130).

In the present embodiment, the wire cord layer 136 is described as being arranged in a direction orthogonal to the wire cord yarns 136a and 136b to the plate member 132, but the direction in which the wire cord yarns 136a and 136b are arranged is It is not limited, it is also possible to form a plurality of wire cord yarns alternately arranged alternately with each other in the form of a string and a blade with a constant angle.

In addition, the material of the sheet paper in the present embodiment is not limited, and may be modified in various forms or materials for fixing the wire cord yarns (136a, 136b) in a predetermined form. For example, the sheet paper may be any structure that can fix the wire cord yarns 136a and 136b in a predetermined form by connecting members of other wire cord yarns or fabrics or yarns.

Meanwhile, although the wire cord layer 136 is described as being disposed outside the plate member 132 in the present embodiment, wire cord yarns 136a and 136b may be directly installed on the side of the plate member 132. The wire cord yarns 136a and 136b may be installed to connect the adjacent plate members 132. In addition, when the hole 132a is formed in the plate member 132, the wire cord yarns 136a and 136b may be inserted between the holes 132a.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention as defined in the appended claims. It will be understood that the invention may be varied and varied without departing from the scope of the invention.

112: pier 114: bridge
120: seismic isolation device 122: lower reinforcement plate
123: lower connecting plate 124: upper reinforcing plate
125: upper connecting plate 130: elastic support
132: plate member 132a: uneven portion
134: elastic member 136: wire cord layer
136a, 136b: wire cord yarn

Claims

An elastic support disposed between the upper structure and the lower structure, the upper and lower reinforcement plate is installed on the upper and lower, respectively,
A rigid plate member spaced apart from each other and installed in multiple layers,
It includes an elastic member integrally molded in a state interposing the plate member therein,
The plate member is an elastic support, characterized in that it comprises a patterned steel plate formed with a plurality of irregularities on the surface.

The method according to claim 1,
The plate member is an elastic support, characterized in that to form an uneven portion by pressing.

The method according to claim 1,
The uneven part is formed by press working elastic support.

The method according to any one of claims 1 to 3,
The elastic member further comprises a wire cord yarn disposed in a direction orthogonal to the stacking direction of the plate member.

An elastic support according to any one of claims 1 to 3,
An upper connecting plate and a lower connecting plate respectively installed on upper and lower portions of the elastic support;
And an upper reinforcement plate and a lower reinforcement plate which are fastened as fastening members to upper and lower portions of the upper connecting plate and the lower connecting plate, respectively, and installed on the upper structure and the lower structure, respectively.