KR20020011313A - Elastomeric Bearing of Restrained Side Expansion - Google Patents

Abstract

PURPOSE: An elastic support for restraining side expansion of a bridge seat for a bridge is provided to secure stability of a support by continuously maintaining the firm supporting force without physical deformation of a supporting unit, to manufacture easily and to reduce cost. CONSTITUTION: An outer face reinforcing member(40) formed by integrally attaching such a high strength chemical fiber seat as carbon fiber or aramid fiber onto the outer face of an elastic pad(30). Thus, a reinforcing elastic pad(50) is prepared. If a load is applied from an upper iron plate(10), the side expanding force generated at the elastic pad is supported on the outer face reinforcing member surrounding the outer face of the elastic pad. Therefore, side expansion and lowering of the elastic pad are restrained.

Description

Elastomeric Bearing of Restrained Side Expansion

The present invention relates to an elastic support ball that is applied between the base and the main body of a bridge or a building structure, etc. and used for the purpose of mitigating vibration or impact. More specifically, the support of the support ball is settled by the continuous load of the support object. It relates to an elastic support ball having a reinforcing function for suppressing the phenomenon that the lateral free surface of the sphere is expanded.

Typically, the supporting device applied to bridges and general buildings is composed of steel bearings or elastic bearings of rubber material, wherein the elastic bearings are continuously supported on the upper steel plate 10 by the supporting objects as shown in FIG. 4. When a load is applied, as the load increases, the elastic rubber pad 60 causes the swelling portion 61 in which the lateral free surface is pushed out at the same time as the settlement of the tissue due to compression, thereby reducing the bearing capacity of the elastic support. There was a problem that could not be done properly, but also cause the accident,

In order to suppress this, a typical method of preventing expansion of elastic bearings is a method of manufacturing and using a steel sheet insertion reinforcement elastic bearing pad formed by integrally inserting a reinforcing steel plate horizontally in the upper and lower and middle portions of the elastic pad. By restraining the deformation of the elastic pad to prevent the swelling phenomenon to some extent and to improve the restraint suppression to the upper load.

However, precise cutting, processing, and assembly processes of reinforcing steel plates are required, and rubber raw materials are filled between the reinforcing steel plates at tight intervals to precisely shape, compress, process, and produce vulcanization and steam heating processes. This has led to many problems such as the complexity of the awards and the dramatic increase in lead times and costs.

Therefore, there is a real need for the improvement of the above problems, the simplification of the manufacturing process, the improvement of the function of the elastic support and the cost reduction, and the development of more improved technologies and construction methods that are easy to manufacture and install.

Therefore, an object of the present invention is to ensure the stability of the support state by maintaining a solid support force without physical deformation of the support hole even if the support of the support object for a long time in the installation of the elastic support for bridges and structures, etc. Of course, to provide a new structure of the elastic support to reduce the ease of manufacturing and manufacturing costs.

In order to achieve the above object, the present invention provides a reinforcing function of the side by inserting a high-strength chemical fiber sheet, such as carbon fiber, glass fiber, aramid fiber, into a cylindrical shape on the outer circumferential surface or inside and outside of a known elastic pad. It is to be able to suppress the lateral expansion phenomenon by configuring the elastic support sphere with the elastic pad.

Figure 1a is a perspective view showing an embodiment of the present invention,

Figure 1b is a longitudinal cross-sectional view of Figure 1a,

2A is an exploded perspective view showing another configuration example of the present invention;

Figure 2b is a longitudinal cross-sectional view of Figure 2a,

Figure 3 is a perspective view of the main incision showing another configuration example of the present invention.

Figure 4 is a side view showing the expansion of the lateral free surface generated in the elastic support of the existing structure.

<Description of Symbols for Major Parts of Drawings>

10: upper iron plate 20: lower iron plate

30: elastic pad 40: outer peripheral surface reinforcement member

40a: internal reinforcing member 40b: external reinforcing member

50: reinforcement elastic pad 50a: internal reinforcement pad

50b: external reinforcement pad 50c: rubber coating layer

60: rubber pad 60c: rubber pad bulge

Hereinafter, the technical configuration of the present invention with reference to the drawings as follows.

The present invention is to apply a cylindrical side-expansion inhibiting member using a high-strength chemical fiber sheet, such as carbon fibers, on the outer circumferential surface of the high-strength elastic body, other lead rods, etc. to the elastic support,

1A and 1B illustrate carbonization and crystallization by heat-treating acrylic fibers at an appropriate temperature in order to suppress side swelling and reinforce support functions in constructing an elastic support hole as an embodiment of the present invention. As one fiber, a high strength chemical fiber sheet such as carbon fiber or aramid fiber, which is light, has a high Young's modulus, and has high rigidity, is integrated in a cylindrical shape on the outer circumferential surface of the known elastic pad 30. By applying the outer peripheral surface reinforcing member 40 attached to configure the reinforcement elastic pad 50,

When the load from the upper steel plate 10 is applied, the high-strength outer circumferential reinforcing member 40 that surrounds the outer surface of the side swelling output generated from the elastic pad 30 is supported to settle the elastic pad 30 and It is possible to suppress the bulge on the side.

2a and 2b is another configuration example of the present invention,

The outer circumferential surface of the elastic pad 30 constitutes an outer reinforcing member 40b having the same function as the outer circumferential surface reinforcing member 40, and has a cylindrical inner reinforcing member having a relatively smaller diameter than the outer reinforcing member 40b. By inserting 40a) into an integrated structure, an internal reinforcement pad 50a is formed inside and an external reinforcement pad 50b is formed outside thereof so that the elastic pad 30 is composed of two pads having independent functions. When the load from the upper plate 10 is applied to the elastic pad 30, since the deformable force applied to the elastic reinforcement member (40b) and the internal reinforcement member (40a) is to block and support the elastic pad 30 It is possible to completely suppress the settlement and lateral swelling shape generated in

In addition, FIG. 3 is a rubber coating layer 50c formed on the outer circumferential surface of the elastic pad to which the chemical fiber of FIG. 1A or 2A is applied as another configuration example of the present invention. In addition to improving, it prevents the inflow of foreign substances such as dust and moisture.

On the other hand, in the above, the arrangement of the high-strength reinforcing means such as carbon fiber, in addition to the structure to reinforce only the outer peripheral surface of the elastic pad 30 in the cylindrical shape, such as the outer peripheral surface reinforcing member 40 in Figures 1a and 1b, 2a and 2b, the outer reinforcing member 40b and the cylindrical inner reinforcing member 40a having a relatively small diameter are additionally inserted into the elastic pad 30 to be integrally configured to form a plurality of external parts having different diameters. And internal reinforcing pads 50a and external reinforcing pads 50b through the internal reinforcing members 40b and 40a, respectively, and the like. Replaced with cylindrical lead or other high-strength elastic body to improve the load bearing capacity and the effect of isolating base, as well as the deflection deformation of the bridge due to the different configuration of the center and the outer part of the load supporting point. It is possible to respond.

Although the embodiment of the present invention shows only the most effective cylindrical elastic support, the technique of the present invention is also applicable to the elastic support of various shapes, such as other polygonal support.

As described above, the present invention, unlike the elastic support holes that attempt to suppress the lateral expansion by stacking and joining the conventional horizontal reinforcing steel plate inside the elastic support of the bridge and structure, the reinforcing member using a high-strength chemical fiber sheet such as carbon fiber is inserted into the cylinder By reinforcing and integrating the elastic pad that can restrain the physical deformation of the side by reinforcing, it is possible to suppress the swelling of the side of the elastic support port even under prolonged load pressure, as well as cylindrical lead or other high-strength elastic body By reinforcing, it can reduce the area of the base, improve the isolation and support functions, simplify the manufacturing installation and maintenance process of the base, and reduce the production cost.

Claims (6)

A circular or polygonal elastic support hole used for seismic bearings, earthquake-proof bearings, etc. is configured as a reinforcement elastic pad 50, but the reinforcement elastic pad 50 is An elastic pad 30 having an elastic material disposed between the upper iron plate 10 and the lower iron plate 20; Composed of an outer circumferential reinforcing member 40 composed of a high-strength chemical fiber sheet attached to a cylindrical shape integrally to the outer circumferential surface of the elastic pad 30 so as to restrain the swelling of the lateral free surface of the elastic pad 30. Elastic support hole having a side expansion preventing function characterized in that. The method of claim 1, The internal reinforcement pad 50a and the external reinforcement pad 50b are configured to be integrally inserted into the internal reinforcement member 40a having a smaller diameter than the external reinforcement member 40b, respectively. Elastic support hole having a side expansion inhibiting function characterized in that. The method of claim 2, Elastic reinforcing pad having a side expansion preventing function, characterized in that the internal reinforcing pad (50a) is composed of a bar material of the lead material. The method of claim 2, Elastic reinforcing member having a lateral expansion inhibiting function, characterized in that the internal reinforcing member (40a) consisting of a metal fiber sheet. The method of claim 2, Elastic reinforcing member having a side swelling inhibiting function, characterized in that the internal reinforcing member (40a) is composed of a metal mesh. The method according to any one of claims 1 to 3, An elastic supporter having a lateral swelling inhibiting function, characterized in that the rubber coating layer (50c) for preventing corrosion and aging integrally formed on the outer peripheral surface of the elastic pad to which the sheet-like reinforcing member is applied.