KR200418599Y1 - Elastomeric bearing - Google Patents

Abstract

The present invention relates to a structure for supporting bridges such as bridges and bridges, and an integral seismic resilient bearing disposed between the bridges to support the bridges flexibly, and refracted by the lower fastening plate 33 or the upper fastening plate 34. The parts 33a and 34a are provided so that the refracting portions 33a and 34a are fastened and fixed to the side of the lower plate main body 11 or the side of the upper plate main body 21 via the fastening members 51 and 52. Therefore, the elastic pad can be easily positioned on the lower plate body or the upper plate body, and the elastic pad can be fastened and fixed to the lower plate body or the upper plate body safely and conveniently, and the binding force between the lower plate and the elastic pad or the elastic pad and the upper plate is There is an effect that the bearing capacity is further improved.

Description

Easy-to-install integral seismic resilient bearings {Elastomeric bearing}

1 is a partial front cross-sectional view showing a detachable elastic bearing according to the prior art,

Figure 2 is a partial front cross-sectional view showing another example of the detachable elastic bearing according to the prior art,

Figure 3 is a partial front cross-sectional view showing an integral seismic elastic bearing according to the prior art,

Figure 4 is a partial front cross-sectional view showing another example of the integral seismic elastic bearing according to the prior art,

Figure 5 is a partial front cross-sectional view showing a first embodiment of the integral seismic elastic bearing according to the present invention,

Figure 6 is a partial front cross-sectional view showing a second embodiment of the integral seismic elastic bearing according to the present invention,

Figure 7 is a partial front cross-sectional view showing a third embodiment of the integrated shockproof elastic bearing according to the present invention.

-Explanation of terms for the main parts of the accompanying drawings-

10; Bottom plate, 11; main body,

12; Anchor, 20; Top View,

21; Main body, 22; anchor,

30; Elastic pad, 31; Elastomer,

32; Metal plate, 32a; Bottom metal plate,

32b; Top metal plate, 33; Bottom fastening plate,

33a; Refractive portions, 34; Upper fastening plate,

34a; Refractive portions, 35; Shock Absorber,

51,52,53,54; Fastening member, 100; Bridge support structures,

200; Bridges.

The present invention relates to a bridge support structure, such as a bridge or bridge, and a bridge support disposed between the bridges to support the bridges flexibly, and in particular, an elastic pad disposed between the lower plate and the upper plate mediates a separate fastening member. The present invention relates to an integrated seismic elastic support fixed to the lower plate and the upper plate.

As is well known, the bridge bearings can be formed of elastomeric bridge bearings and spherical bearings, monopot-type bearings and multipot bridge bearings, depending on the shape of the pad. -Type Bearing).

Among them, the use of an elastomeric bridge bearing is increasing due to its simple structure, easy manufacture, and low cost.

Figure 1 shows the most common elastomeric bridge support, according to the bottom plate 10 is installed in the bridge support structure 100, such as alternating or pier; The elastic pad 31 formed in a circular, elliptical, or polygonal column shape, and a plurality of metal flat plates 32 formed at regular intervals on the elastomer 31, are placed on the lower plate main body 11. ) And; Installed on the bridge 200, it is formed on the elastic pad 30 to form a structure consisting of a top plate 20 which is elastically supported. However, in the case of the conventional elastomeric bridge support, a method for preventing the positional movement of the elastic pad 30 is not devised, and the elastic pad 30 is externally connected in the process of installing the elastomeric bridge support. Due to the interference of the lower plate main body 11 and the upper plate main body 21 is not fixed to the central position, the position is released, or the elastic pad 30 to accommodate the horizontal displacement of the upper plate 20 after installing the elastomeric bridge support This results in a problem of dislocation from the home position. In addition, the elastomer pad 31 constituting the elastic pad 30 is deformed in the process of accommodating the horizontal displacement of the upper plate 20 after the elastic pad support is installed. A gap is generated between the lower plate 10 or between the elastic pad 30 and the upper plate 20. Thus, the elastic pad 30 and the lower plate 10, or between the elastic pad 30 and the upper plate ( If a gap is generated between 20), the ground area between them is reduced, which causes a greater deviation of the position of the elastic pad 30.

To solve this problem, as shown in FIG. 2, the bracket 40 is fastened to the lower plate main body 11 through a separate fastening member 51 such as a bolt to prevent the positional deviation of the elastic pad 30. Elastomer-type bridge supports with reinforced beams are proposed. According to this, since the position of the elastic pad 30 is prevented by the bracket 50 installed on the lower plate main body 11, the problem that the elastic pad 30 is separated from the correct position is not caused.

However, as shown in FIGS. 1 and 2, the detachable elastic support to which the elastic pad 30 is simply inserted and fixed between the lower plate 10 and the upper plate 20, the elastic pad 30 is the lower plate 10. And the upper plate 20 is mounted on and supported by the elastic pad 30, that is, the lower plate 10 and the elastic pad 30 and the upper plate 20 are not fixed to each other. When the vibration is generated in the left and right direction or up and down direction, since the lower plate 10, the elastic pad 30 and the upper plate 20 is free to move with each other, the seismic function can not be expected in any case.

As shown in FIGS. 3 and 4, an integrated shockproof elastic support in which the lower plate 10, the elastic pad 30, and the upper plate 20 are sequentially fixed to each other has been proposed, which will be described in more detail as follows.

The conventional integrated shockproof elastic bearing shown in FIG. 3 is composed of an elastomer 31 having a circular, elliptical, or polygonal pillar shape, and a plurality of metal plates 32 formed at regular intervals on the elastomer 31. On the lower surface and the upper surface of the pad 30, the lower fastening plate 33 and the upper fastening plate 34 in the form of flat plates are fastened and fixed respectively through separate fastening members 51 and 52, and these lower fastening plates 33 ) And the upper fastening plate 34 are fastened and fixed to the upper surface of the lower plate body 11 and the lower surface of the upper plate body 21 via separate fastening members 53 and 54, respectively. In the present embodiment, the elastic pad 30 is the lower plate body 11 and the upper plate body () through the lower fastening plate 33 and the upper fastening plate 34 and the separate fastening members (51, 52, 53, 54). 21 is firmly fastened and fixed, not only the positional deviation of the elastic pad 30 is prevented, but also the seismic function is exhibited by the elastomer 31 constituting the elastic pad 30. However, in this embodiment, in order to fix the elastic pad 30 to the lower plate body 11 and the upper plate body 21 by using the lower fastening plate 33 and the upper fastening plate 34, a plurality of fastening members 51. Since each component must be fastened and fixed by using 52, 53, and 54, work is not only cumbersome and difficult, but also causes a large labor load and threatens worker safety.

In order to solve this problem, an integral seismic resilient bearing as shown in FIG. 4 has been proposed. As a result of the integrated seismic resilient bearing, a plurality of metal plates 32 are integrally molded to the elastomer 31, and the bottom metal plate 32a and the top metal plate 32b are exposed to the outside of the elastomer 31, The lower fastening plate 33 and the upper fastening plate 34 in the form of flat plates are bonded to the lowermost metal flat plate 32a and the uppermost metal flat plate 32b through the iron plate adhesive, respectively, and the lower fastening plate 33 and the upper fastening plate 33 are Fastening plate 34 is characterized in that the fastening and fixing respectively to the upper surface of the lower plate body 11 and the lower surface of the upper plate body 21 via the separate fastening members (53, 54). According to the present embodiment, the lower fastening plate 33 and the upper fastening plate 34 are respectively disposed on the lowermost metal plate 32a and the uppermost metal plate 32b exposed to the outside of the elastomer 31 through the steel plate adhesive. Since it is adhesively fixed, the structure of the integrated shockproof elastic bearing is simplified, and when the integrated shockproof elastic bearing is constructed, the fixing operation of the elastic pad 30 in the field is simplified (unlike the embodiment shown in FIG. 3). The lower fastening plate 33 and the upper fastening plate 34 do not need to be fastened and fixed to the lower surface and the upper surface of the elastic pad 30 through the fastening members 53 and 54}.

However, in the case of such a conventional integrated shockproof elastic bearing, the lower fastening plate 33 in the form of a flat plate is placed against the upper surface of the lower plate body 11, and then the lower fastening plate 33 is lowered through a separate fastening member 51. The upper fastening plate 34 is fastened and fixed to the upper surface of the main body 11, and the upper fastening plate 34 in the form of a plate is brought into contact with the bottom surface of the upper plate main body 21, and then the upper fastening plate 34 is upper plated through a separate fastening member 52. The fastening method is fixed to the bottom of the main body 21, and the elastic pad 30 is placed in the lower plate main body 11 and the upper plate main body 21 so that it is very difficult to match the fastening holes therebetween.

In addition, in the case of the conventional integrated shockproof elastic bearing, the fastening members 51 and 52 must be pushed between the lower plate main body 11 and the upper plate main body 21 to be fastened in the vertical direction, and thus, in fact, the lower fastening plate 33 and the lower plate main body. Not only is it virtually impossible to grasp whether the fastening holes between 11 coincide, but also a problem that the fastening work is inconvenient and the safety of the worker is greatly threatened.

In addition, in the case of the conventional integrated shockproof elastic bearing, when an external force is applied in the horizontal direction, a problem arises in that shear stress is concentrated on the fastening members 51 and 52.

The present invention is devised to solve the problems as described above, the elastic pad can be easily positioned on the lower body or the upper body, and the elastic pad can be fastened and secured to the lower body or the upper body. It is an object of the present invention to provide a one-piece, seismic elastic support that is convenient for construction so that the binding force between the lower plate and the elastic pad or the elastic pad and the upper plate is improved.

The present invention for achieving the above object, the lower plate is installed in the bridge support structure, such as shifts and piers; An elastic pad formed in a circular, elliptical or polygonal column shape, and a plurality of metal plates provided at regular intervals in the elastomer, the elastic pad being mounted on the lower plate body; It is installed on the bridge, it is made of an upper plate mounted on the elastic pad and elastically supported, the lower fastening plate and the upper fastening plate in the form of a plate is provided on the lower surface and the upper surface of the elastic pad, respectively, these lower fastening plate and the upper fastening plate is a separate fastening In the integrated seismic elastic support that is fastened and fixed to the lower plate body and the upper plate body via a member, the lower fastening plate or the upper fastening plate is provided with a refraction portion, the refraction portion of the side or upper plate body of the lower plate body via the fastening member The structure is characterized in that the fastening is fixed to the side.

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

5 to 7 is a view showing the integrated seismic elastic support according to the present invention, the same parts as in Fig. 1 to 4 showing the prior art with the same reference numerals will be omitted.

5 to 7, the integrated seismic resilient bearing according to the present invention, the lower plate 10 is installed in the bridge support structure 100, such as shifts and piers; The elastic pad 31 formed in a circular, elliptical, or polygonal column shape, and a plurality of metal flat plates 32 formed at regular intervals on the elastomer 31, are placed on the lower plate main body 11. ) And; Is installed on the bridge 200, it is made of an upper plate 20 which is mounted on the elastic pad 30, the elastic support 30, the lower fastening plate 33 and the upper fastening plate 34 of the flat form of the elastic pad 30 It is provided on the lower surface and the upper surface, respectively, and the lower fastening plate 33 and the upper fastening plate 34 are fastened and fixed to the lower plate body 11 and the upper plate body 21 via separate fastening members 51 and 52, respectively. The lower fastening plate 33 and the upper fastening plate 34 are provided with refracting portions 33a and 34a, and the refracting portions 33a and 34a are provided with the lower plate body 11 through the fastening members 51 and 52. Side structure of the upper plate body 21 is fastened to form a structure.

According to the present invention, when the lower plate main body 11 and the upper plate main body 21 are seated on the lower fastening plate 33 and the upper fastening plate 34 having the refracting portions 33a and 34a, the elastic pad 30 is While naturally positioned in the lower plate main body 11 and the upper plate main body 21, the fastening hole in the lower fastening plate refraction portion 33a and the lower plate main body 11 side, the upper fastening plate deflection portion 34a and the upper plate main body 21. ) The fastening hole on the side is automatically matched.

In addition, in the fastening and fixing the refracting portion (33a; 34a) to the side of the lower plate main body 11 and the side of the upper plate main body 21 via separate fastening members (51, 52), fastening members (51, 52) ), The fastening direction of the bottom fastening plate 33a and the lower plate main body 11 side, and the fastening hole of the upper fastening plate deflection portion 34a and the upper plate body 21 side coincide with each other. Not only can the operator easily check with the naked eye directly, but in any case, there is no need to put the operator's body between the lower plate body 11 and the upper plate body 21, greatly improving the safety of the operator and making the fastening work very convenient. Done.

In addition, in the present invention, not only the binding force between the lower plate 10 and the elastic pad 30, the elastic pad 30 and the upper plate 20 is improved, the external force in the horizontal direction is the lower fastening plate refraction portion 33a ) And the upper fastening plate refracting portion 34a are distributed over the entire contact surface, so that the bearing force in the horizontal direction is also greatly improved.

5 illustrates an example in which the present invention is applied to the integrated seismic resilient bearing shown in FIG. 3. The lower fastening plate 33 having a flat plate shape is provided on the lower and upper surfaces of the elastic pad 30. And the upper fastening plate 34 are fastened and fastened respectively through the separate fastening members 51 and 52, and the lower fastening plate 33 and the upper fastening plate 34 separate the separate fastening members 53 and 54. The upper and lower surfaces of the lower plate main body 11 and the lower surface of the upper plate main body 21 are fastened and fixed, respectively.

6 shows an example in which the present invention is applied to the integrated seismic resilient bearing shown in FIG. 4, wherein a plurality of metal plates 32 are integrally formed on the elastomer 31, and the bottom metal The flat plate 32a and the top metal plate 32b are exposed to the outside of the elastomer 31, and the bottom plate 33 and the top plate 34 in the form of plate are connected to the bottom plate 32a through the steel plate adhesive. And the lower fastening plate 33 and the upper fastening plate 34 are respectively attached to the upper and upper metal plates 32b by means of separate fastening members 53 and 54. 21) are fastened and fixed to the bottom of each.

FIG. 7 illustrates a third embodiment of the integrated seismic resilient bearing according to the present invention, wherein the lower fastening plate 33 and the upper fastening plate 34 are integrally formed with the elastomer 31.

When the elastomer 31 of the elastic pad 30 is vulcanized, when the lower fastening plate 33 and the upper fastening plate 34 are embedded in the elastomer 31 together with the plurality of metal plates 32, The lower fastening plate 33 and the upper fastening plate 34 are integrally formed with the elastomer 31 together with the plurality of metal plates 32.

In the present embodiment, since the lower fastening plate 33 or the upper fastening plate 34 forms a simple structure integrally formed with the elastomer 31, the lower fastening plate 33 or the upper fastening plate 34 is elastic pad. It is not necessary to deal with the adhesive material such as the separate fastening members 53 and 54 or the steel sheet adhesive for installation on the 30, and it is not only easy to manufacture the integrated shockproof bearing, but also easily install the integrated shockproof bearing. It has the effect of decomposing.

Preferably, as shown in a partially enlarged view of FIG. 5, the contact surface of the lower fastening plate 33 and the upper fastening plate 34 in contact with the elastomer 31 are roughly surface-treated to form a lower fastening plate. The binding force between the 33 and the elastomer 31, the upper fastening plate 34 and the elastomer 31 is improved.

The present invention is not limited to the embodiments as described above, and of course, various modifications can be made without departing from the scope of the following claims.

5 to 11, the lower fastening plate 33 and the upper fastening plate 34 are structurally symmetrical with each other, but if necessary, the lower fastening plate 33 and the upper fastening. The plates 34 may be different from one another, and one of them may be applied as in the prior art.

In addition, as shown in Figure 7, by filling the shock absorbing material 35, such as lead to the elastic pad 30, of course, the seismic function of the integrated seismic resilient bearing may be improved.

According to the present invention as described above, the lower fastening plate 33 or the upper fastening plate 34 is provided with the refractions (33a; 34a), the refractions (33a; 34a) are fastening members (51, 52) Since it forms a structure that is fastened and fixed to the side of the lower plate body 11 or the side of the upper plate body 21 via the medium, the elastic pad can be easily positioned on the lower plate body or the upper plate body, the elastic pad is safe and convenient It can be fastened and fixed to the lower plate body or the upper plate body, there is an effect that the binding force and the support force between the lower plate and the elastic pad, or the elastic pad and the upper plate is more improved.

Claims (3)

A lower plate 10 installed on the bridge supporting structure 100 such as an alternating or pier; The elastic pad 31 formed in a circular, elliptical, or polygonal column shape, and a plurality of metal flat plates 32 formed at regular intervals on the elastomer 31, are placed on the lower plate main body 11. ) And; Is installed on the bridge 200, it is made of an upper plate 20 which is mounted on the elastic pad 30, the elastic support 30, the lower fastening plate 33 and the upper fastening plate 34 of the flat form of the elastic pad 30 It is provided on the lower surface and the upper surface, respectively, and the lower fastening plate 33 and the upper fastening plate 34 are fastened and fixed to the lower plate body 11 and the upper plate body 21 via separate fastening members 51 and 52, respectively. In the integrated shockproof elastic bearing, The lower fastening plate 33 or the upper fastening plate 34 is provided with refractions 33a and 34a, and the refractions 33a and 34a are connected to the lower plate body 11 through the fastening members 51 and 52. An integrated shockproof elastic bearing, characterized in that is fastened to the side or side of the upper plate body (21). The unitary vibration-resistant elastic bearing according to claim 1, wherein the lower fastening plate (33) or the upper fastening plate (34) is integrally molded with the elastomer (31). The integrated anti-shock support according to claim 1, wherein the contact surface of the lower fastening plate (33) or the upper fastening plate (34) in contact with the elastomer (31) is roughly surface treated.

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