KR101920698B1 - Elastic bearing for easy maintenance - Google Patents

Abstract

Disclosed is an elastic bearing easy to maintain, capable of absorbing a large horizontal impact force without a protrusion part, called as a wedge, and breakage of a member when the large impact force is applied, preventing an upper plate from being damaged when the upper plate welded on an upper structure is put out and welded again, and largely reducing the size of the upper and lower plates in comparison with a conventional elastic bearing. According to the present invention, the elastic bearing easy to maintain comprises a plurality of first end part support units installed on either or both of the upper and lower plates, and inwardly supporting an end part of an elastic rubber body from an opposite side to both sides of the elastic rubber bodies. The first end part support unit comprises: a first slot support part installed on any one from the upper and lower plates, having a first directional slot formed in a direction facing the elastic rubber body, and supporting an end part of the elastic rubber body; and a first pressing fixture coupled to any one through a first directional slot with a space for the first directional slot left between the first pressing fixture and the elastic rubber body so as to press the first slot support part towards the any one and fix the same to the any one.

Description

[0001] Elastic bearing for easy maintenance [

The present invention relates to an improvement of an elastic support, and more particularly, to an improvement of an elastic support which can be suitably used to elastically receive load and horizontal displacement of a superstructure by being installed between an upper structure of a bridge and a bridge.

Generally, a bridge is composed of a supporting structure such as a bridge pier, an upper structure such as a bridge top plate, and a coordinate system installed on the supporting structure to support the load of the upper structure to the supporting structure. A shim plate such as a thin steel plate is inserted into an elastomer such as rubber at intervals (hereinafter referred to as " rubber elastic body " in this specification) is often used. Since a vehicle or a train runs at a high speed over the upper structure of the bridge, a dynamic load that changes momentarily acts on the bridge. In the case of large bridges, since the length of the upper structure is lengthened, the horizontal expansion of the upper structure should be allowed on the contact portion of the bridge with the upper structure because the expansion of the upper structure is increased due to the thermal deformation due to the temperature change due to seasonal changes. In addition, a support structure capable of buffering the impact force in the horizontal direction against a large impact force acting on the bridge in the horizontal direction by an earthquake or the like should be adopted. For this purpose, an elastic support using a rubber elastic body as described above is provided between the bridge pier and the upper structure to support the upper structure in correspondence with the horizontal displacement of the upper structure, thereby reducing the impact force on the upper structure . The upper plate and the lower plate of the elastic support protrude downward and upward from the spaced apart positions to limit the horizontal movement between the bridge piers and the upper structures and collide with each other when a large impact force acts due to an earthquake or the like, (Also referred to as "wedge" in the field) for the purpose of preventing the occurrence of the accident.

Such an elastic support is disclosed in a registration utility model publication of Registration No. 20-0232756 entitled " Resilient Support for Bridges, inventor: Young-Chul Cho, hereinafter referred to as " Prior Art ".

Since the protrusions provided on the conventional elastic support as described above should be installed in two rows on one side and in four rows on both sides of the upper plate and the lower plate in consideration of horizontal displacement of the upper structure, There is a problem that it becomes large.

In addition, when the protrusions are separated from the upper plate or the lower plate due to the collision between the protrusions provided on the upper plate and the lower plate, there is a problem that maintenance can not be performed because welding can not be performed because the gap with the elastic pad is narrow.

In addition, in the conventional elastic support, there is a problem that the rubber elastic body inserted between the lower plate and the upper plate is detached due to the reduction of frictional force, the supporting ability is reduced due to the rotation and displacement of the upper structure, -OVER phenomenon).

Further, in the conventional elastic support, when the upper plate and the lower plate are shifted in position due to the relative horizontal displacement of the upper structure relative to the bridge pier and the shear deformation occurs in the elastic body, the upper structure is pulled up, Since the fixed bottom plate is difficult to move its position, the top plate fixed by welding to the bottom of the upper structure must be removed and moved to the bottom of the upper structure by welding again. in need.

It is an object of the present invention to provide a structure capable of receiving a horizontal impact force within a design stretch force and a normal expansion and contraction displacement without a protrusion called a so-called wedge provided separately from an upper plate and a lower plate, And is capable of absorbing a large horizontal impact force greater than design seismic force without damaging the door member.

Another object of the present invention is to provide an elastic support which is easy to maintain.

It is still another object of the present invention to provide an elastic support capable of reducing the size of the upper plate and the lower plate as compared with the conventional elastic support.

It is still another object of the present invention to provide an elastic support which can easily restore the shape of a rubber elastic body when shear deformation occurs in the elastic body.

It is still another object of the present invention to provide an elastic support capable of restoring a direction in which a rubber elastic body itself approaches a circular shape when shear deformation is excessively generated in a rubber elastic body due to relative horizontal displacement between the upper structure and the support structure There is.

An elastic support which is easy to maintain according to the present invention includes a lower plate provided on a support structure, an upper plate attached to a bottom surface of the upper structure, and a rubber elastic body provided between the lower plate and the upper plate, And a plurality of first end supporting units which are provided on at least one of the bottom plate and the top plate and which support the ends of the rubber elastic body on the opposite sides of the rubber elastic body, respectively, toward the inside, A first slot supporting part provided on any one of the above and having a first direction slot formed in a direction toward the rubber elastic body and supporting the end of the rubber elastic body; And a rubber elastic body which is coupled to the one of the first direction slot and the first direction slot by leaving the space of the first direction slot and presses the first slot supporting part toward the one of the two, And the first slot supporting portion includes a first slot member having the first direction slot formed therein so that the first slot member supports the side surface of the rubber elastic body or the first slot member supports the side surface of the rubber elastic body, And a second pressing member which is provided on the first slot member and which is urged by the first pressing member to move the first slot member toward the one And a first cover member for pressing the first cover member.

Preferably, the first pressurizing fixture is a bolt having a head or a headless bolt fixed to the one and a nut screwed to the headless bolt.

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A first edge reinforcement plate is provided on the end portion of the rubber elastic body facing either one of the first and second directional reinforcement plates, and a first guide groove or a first guide protrusion, which is disposed in parallel with the first direction slot, Wherein one of the first guide grooves or the first guide grooves for guiding the first guide grooves or the first guide protrusions is formed on one of the first and second end grooves, It is preferable to support the side surface of the battery.

A second edge reinforcement plate may be provided at an end portion of the rubber elastic body facing the other of the bottom plate and the top plate and a stopper may be provided at the other end to limit relative horizontal movement of the second edge reinforcement plate.

A first stopper groove is formed in the second edge reinforcing plate and a second stopper groove is formed in the remaining one of the positions facing the first stopper groove, It is good to insert the parts inserted into the grooves respectively.

A second edge reinforcement plate is provided at an end of the rubber elastic body facing the other of the bottom plate and the top plate, and the second edge reinforcement plate is provided with a second guide groove or a second guide groove And a second guide protrusion or a second guide groove for guiding the second guide groove or the second guide protrusion is formed in the other one of the first guide groove and the second guide groove, A plurality of second end support units for supporting the end portions of the rubber elastic body facing the other one from opposite sides of the rubber elastic body in the direction of the first direction, And a second direction slot formed in a direction toward the rubber elastic body in a direction perpendicular to the slot, Second slots support for supporting the end group; And a rubber elastic body, which is coupled to the other one through the second directional slot while leaving a space in the second directional slot, and presses the second slot supporting part toward the other one to fix the same to the remaining one And a second pressure fixture.
The second slot supporting portion may include a second slot member formed with the second direction slot, and a second insertion member inserted between the second slot member and the rubber elastic body.

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The second slot supporting portion may include a second slot member formed with the second direction slot, and the second slot member may support a side surface of the rubber elastic body.

And a second cover member provided on the second slot member and being pushed by the second pressure fixture to press the second slot member toward the other one.

Wherein the first edge reinforcement plate is provided with a first edge reinforcement plate at the end portion of the rubber elastic body facing either one of the first and second elastic fixtures, the first edge reinforcement plate has a first lateral projection protruding in both lateral sides, So that the first slot supporting portion and the first lateral projection are pressed toward either one of them.

And a second edge reinforcing plate having a second side projecting portion protruding laterally from the end portion of the rubber elastic body toward the other of the bottom plate and the top plate, and the second edge reinforcing plate is provided with the second lateral protruding portion And the other one is fixed to the other by fixing means for fixing the other one.

Wherein the first edge reinforcement plate has a first lateral protrusion protruding laterally and the first cover member is urged by the first pressurizing fixture to urge the first slot support and the first lateral protrusion It is preferable to pressurize it.

The first cover member may also support the side surface of the rubber elastic body at a portion where the first edge reinforcing plate is provided.

According to the present invention, it is possible to receive a constant expansion and contraction without any protrusion, which is also called a " wedge " for absorbing the horizontal load while restricting the horizontal displacement of the upper structure and being broken at the time of collision, It is possible to resist a horizontal impact force within a design seismic force and to absorb a large horizontal impact force greater than a design seismic force without damaging the member by causing the slot member to slide in a pressurized state even when a large horizontal impact force greater than design seismic force acts.

According to the present invention, excessive shear deformation may occur in a rubber elastic body when a large horizontal force of greater than design seismic force is applied to the elastic support. In this case, while the excessive shear deformation is generated, Not only the impact force can be absorbed, but also the rubber elastic body can be restored by itself in the direction approaching the circular shape.

According to the present invention, in a state in which the upper structure is pulled up, the upper plate fixed by welding to the bottom of the upper structure is removed, and the rubber elastic body is easily restored to its original state without difficult and complicated process, It is possible to prevent the upper plate from being damaged in the process of removing the welded upper plate and welding again, and maintenance is also very easy.

In addition, according to the present invention, it is not necessary to install a protrusion called a wedge in a row, so that the size of the upper plate and the lower plate can be greatly reduced as compared with the conventional elastic support.

In addition, according to the present invention, it is possible to fix the insertion member and the rubber elastic body completely close to each other by moving the position of the slot member after manufacturing the insertion member having an appropriate length in advance.

1 is an exploded perspective view of a resilient support which can be easily maintained according to the present invention,
FIG. 2 is a sectional view showing a main part sectional configuration of a resilient support easy to maintain according to the present invention;
Fig. 3 is a perspective view showing the bottom surface of the rubber elastic body of Fig. 1,
FIG. 4 is an exploded perspective view showing a modified example of an elastic support easy to maintain according to the present invention; FIG.
Fig. 5 is a plan view for explaining an installation state of the first end supporting unit shown in Fig. 4,
Fig. 6 is a diagram showing a state in which the elastic body of the elastic support of Fig. 2 is deformed by a single-
Fig. 7 is a cross-sectional view showing the state in which the rubber elastic body of Fig. 6 is restored to its original shape,
FIG. 8 is an exploded perspective view showing another example of an elastic support easy to maintain according to the present invention, FIG.
9 is a partial cross-sectional view showing a modified example of the elastic support shown in Fig. 8,
FIG. 10 is a plan view for explaining another example of an elastic support easy to maintain according to the present invention; FIG.
11 and 12 are cross-sectional views each showing still another example of an elastic support easy to maintain according to the present invention.

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

FIG. 1 is a perspective view of a resilient support which can be easily maintained according to the present invention, FIG. 2 is a cross-sectional view showing a cross-sectional structure of a main part of an elastic support easy to maintain according to the present invention, and FIG. FIG.

1 to 3, the elastic support 100 according to the present invention has a lower plate 110, an upper plate 120, and a rubber elastic body 130, which are easy to maintain.

The lower plate 110 is installed on a support structure such as a pier or the like and is fixed through an anchor nut N previously pierced in a pier or the like and an anchor bolt B coupled to the anchor nut N, Is attached to the bottom surface of the upper structure such as the upper plate of the bridge, and is usually fixed through welding.

The rubber elastic body 130 provided between the lower plate 110 and the upper plate 120 is formed by inserting a reinforcing plate 132 made of a thin metal plate or the like into the elastic polymer 131 in the form of a layer Is used. A first edge reinforcement plate 133 is provided at the lower edge of the rubber elastic body 130 and a second edge reinforcement plate 135 is provided at the upper edge of the rubber elastic body 130. The first and second edge reinforcing plates 133 and 135 are thicker than the reinforcing plates 132 inserted in layers in the inside thereof.

1 to 3, the first edge reinforcement plate 133 is formed with a first guide groove 134, which is formed along the center portion and is opened toward the bottom plate 110. The first guide groove 134 is formed in the longitudinal direction (throttling direction) of the bridge in which the expansion and contraction is largely generated.

A first guide protrusion 111 is formed on the upper surface of the lower plate 110 so as to guide the movement of the first edge reinforcement plate 133 in the throttle direction. The first guide protrusion 111 is preferably fixed to the lower plate 110 through the plate head bolt 112 or the like. It goes without saying that other fixing means such as welding may be used for fixing the first guide projection 111. The mounting positions of the first guide groove 134 and the first guide protrusion 111 can be changed with each other.

A first stopper groove 136 is formed on the upper surface of the second edge reinforcing plate 135. A second stopper groove 121 is formed in the bottom surface of the top plate 120 facing the first stopper groove 136. A stopper 140 is inserted into the first and second stopper grooves 136, 121. The stopper 140 may be an insert inserted into the first stopper groove 136 and the second stopper groove 121, respectively. The grooves may be formed in one of the second edge reinforcing plate 135 and the top plate 120 and the protrusions may be formed in the other one of the second edge reinforcing plate 135 and the top plate 120, And the parts in which the protrusions are formed are inconvenient for movement and storage. Therefore, it is preferable to form the inserts as mentioned above. It is preferable that the stopper 140 is disposed at the center portion of the rubber elastic body 130 in the first and second stopper grooves 136 and 121. However, the stopper 140 may be provided at a position other than the central portion, As shown in FIG.

It is preferable that the first and second stopper grooves 136 and 121 and the stopper 140 are formed to have a circular cross-sectional shape as shown in FIG. 1, but it is sometimes possible to form a polygonal cross- It is of course possible to have a shape.

The elastic support 100, which is easy to maintain according to the present invention, has at least a pair of first end supporting units 150 provided on the lower plate 110. The first end support unit 150 supports the end portion of the rubber elastic body 130 on the opposite side to both sides of the rubber elastic body 130 in the throttling direction.

The first end support unit 150 is installed on the lower plate 110 to support the end of the rubber elastic body 130 to prevent the end of the rubber elastic body 130 from being pushed outward. And a first slot supporting portion 151 having a first direction slot 152 formed in a direction perpendicular to the first direction.

The first slot supporting part 151 includes a first slot member 153 having a first direction slot 152 formed therein and a first insertion member 154 inserted between the first slot member 153 and the rubber elastic body 130 . In this case, since the size of the first insertion member 154 can be easily adjusted according to the degree of shear deformation when the shear-deformed rubber elastic body 130 is restored to a circular shape, the field adaptability is good. The first directional slots 152 are preferably formed in two or more, but three or more of them may be formed in parallel. In some cases, the first slot member 153 may be divided into a plurality of portions on one side of the rubber elastic body 130.

Preferably, a first cover member 155 having a fastening hole 156 is provided on the first slot member 153. The first cover member 155 serves to prevent foreign matter, rainwater, and the like from flowing into the first directional slot 152. The first cover member 155 also covers the end of the first insertion member 154 to prevent the end of the first insertion member 154 from being lifted up.

The first end supporting unit 150 is coupled to the lower plate 110 through the first direction slot 152 while leaving a space in the first direction slot 152 between the first end supporting unit 150 and the rubber elastic body 130, And a first pressing fixture 157 for pressing the support portion 151 toward the lower plate 110 to fix the support portion 151 to the lower plate 110. A bolt with a head is suitable for the first pressing fixture 157. In this case, the bolt is inserted into the fastening hole 156 and the first direction slot 152, and is preferably screwed to the fastening hole 113 formed in the lower plate 110. The degree of engagement of the bolts is such that the first slot member 153 is prevented from being pushed outward by the rubber elastic body 130 by giving a proper pre-tension so that the bolt can have sufficient horizontal resistance. A headless bolt fixed to the lower plate 110 and a headless bolt may be screwed to press the first cover member 155 and the first slot member 153 toward the lower plate 110 The nut can serve as the first pressure fixing member 157.

FIG. 4 is an exploded perspective view showing a modified example of an elastic support which can be easily maintained according to the present invention, and FIG. 5 is a plan view for explaining an installation state of the first end support unit shown in FIG.

The first slot supporting member 151 may be formed by using the first insertion member 154 described in the previous embodiment and without using the first slot member 153 having the first direction slot 152 formed directly on the rubber elastic body 130 And the like. In this case, the first direction slot 152 is formed to be longer than that of the first embodiment, so that it is possible to have a sufficient margin to restore the rubber elastic body 130 deformed by shear deformation without the first insertion member 154 .

The rest are the same as those described with reference to Figs.

Fig. 6 is a view showing a state in which the rubber elastic body of the elastic support of Fig. 2 is deformed in a sheared state, and Fig. 7 is a sectional view showing a state in which the rubber elastic body of Fig. 6 is restored to its original shape.

That is, when the rubber elastic body 130 is deformed by shearing as shown by the dot-dash line in FIG. 6 due to the relative horizontal displacement of the upper structure such as the bridge top plate and the support structure such as the bridge, the elastic support 100 performs its function The rubber elastic body 130 must be restored to its original shape.

The relative horizontal displacements of bridge structures such as bridge decks and supporting structures such as piers are not only affected by earthquakes but also by shrinkage of bridge girders due to tension (PT), drying shrinkage of bridge overhead concrete, permanent deformation due to creep, If the shear deformation occurs excessively in the rubber elastic body due to various reasons, it is necessary to restore the rubber elastic body to a circular shape or to replace the existing elastic support which is deformed by shearing.

Generally, when the upper structure of a bridge is pulled up, most rubber elastic bodies are restored to their original shape.

A process of restoring the rubber elastic body 130 to a circular shape in a state where the rubber elastic body 130 is deformed in a sheared state as shown in FIG. 6 will be described as follows.

When the first structure is pulled up by a hydraulic jack or the like in a state where the first insertion member 154 is disassembled by releasing the first pressing fixture 157 made of a bolt or the like and in most cases the rubber elastic body 130 is formed into a circular shape Restored. When the lower end of the rubber elastic body 130 is pushed to the left when the rubber elastic body 130 is not restored to its original shape even when the upper structure is pulled up, the first guide groove 134 formed on the first edge reinforcing plate 133, Is moved to the left on the first guide projection 111, and the rubber elastic body 130 is restored to its original state without shear deformation as shown in Fig. The first insertion member 154 whose width is adjusted is inserted between the rubber elastic body 130 and the first slot members 153 on both sides in a state where the rubber elastic body 130 is restored to the circular shape, When the first pressing fixture 157 is fastened to the lower plate 110, the rubber elastic body 130 can be restored to its original state as shown in Fig. Needless to say, the length of the first slot member 153 can be adjusted and used.

In addition, it may be difficult to precisely measure the length of the first inserting member 154 so as to closely adhere to the side surface of the rubber elastic body 130, The first insertion member 154 having an appropriate length is manufactured in advance and then the first insertion member 154 and the rubber elastic body 130 are brought into close contact with each other by moving the position of the first slot member 153 It is possible to fix the bolts by applying tension to the bolts.

At this time, the upper plate 120 is slightly shifted to the left as compared with the lower plate 110.

That is, according to the present invention, the upper plate 120 welded to the lower surface of the upper structure is pulled off and the rubber elastic body 130 can be easily and easily welded after the position is moved, Can be restored to its original state and reinstalled. Therefore, the elastic support 100, which is easy to maintain according to the present invention, can prevent the upper plate from being damaged in the process of removing the welded upper plate and welding it again, and maintenance is very easy.

8 is an exploded perspective view showing another example of an elastic support which can be easily maintained according to the present invention.

The second guide groove 137 is formed in the upper edge second reinforcing plate 135 of the rubber elastic body 130 in the direction perpendicular to the first direction slot described above, that is, in the direction perpendicular to the throttling axis, 120 may be coupled to the second guide groove 137 to form a second guide protrusion 124 for guiding the movement of the second edge reinforcement plate 135 in the direction perpendicular to the throttling axis. The second guide groove 137 and the second guide protrusion 124 can be formed by mutually exchanging their positions. The top plate 120 may be fixed to the bottom surface of the upper structure through the anchor bolts B and the anchor nut N as in the bottom plate 110. [

The upper plate 120 is provided with at least a pair of upper plates 120 for supporting the ends of the rubber elastic body 130 in the direction perpendicular to the first direction slot 152, that is, opposite to both sides of the rubber elastic body 130 in the direction perpendicular to the throttle, And a pair of second end supporting units 160 are provided.

The second end supporting unit 160 has a second direction slot 162 formed in a direction perpendicular to the first direction slot 152 and toward the rubber elastic body 130 and supports the end of the rubber elastic body 130 The second slot supporting portion 161 is coupled to the upper plate through the second direction slot 162 while leaving the space of the second direction slot 162 between the second slot supporting portion 161 and the rubber elastic body 130, And a second pressing fixture 167 that presses the upper plate 120 toward the upper plate 120 and fixes the upper plate 120 to the upper plate 120.

The second slot supporting portion 161 includes a second slot member 163 formed with a second direction slot 162 and a second insertion member 164 inserted between the second slot member 163 and the rubber elastic body 130 .

The second slot support portion 161 may be configured such that the second slot member 163 formed with the second direction slot 162 directly supports the side surface of the rubber elastic body 130.

A second cover member 165 having a fastening hole 166 may be further provided on the second slot member 163. In this second cover member 165, a fastening hole 166 is formed. The second cover member 165 covers the second directional slot 162 to prevent foreign matter and moisture from penetrating into the second directional slot 162. The second cover member 165 has a shape in which the fastening hole 166 and the second direction And is urged by the second pressurizing fixture 167 such as a bolt fixed to the top plate 120 through the slot 162 to press the second slot member 163 toward the top plate 120.

The rest is the same as described above.

9 is a partial cross-sectional view showing a modified example of the elastic support shown in Fig.

The first end support units 150 provided on both sides of the rubber elastic body 130 may be provided in different forms. That is, the first end support unit 150 installed on the left side supports the first insertion member 154 inserted between the first slot member 153 and the rubber elastic body 130, The end support unit 150 can support the end of the rubber elastic body 130 directly by the first slot member 153 without the first insertion member 154. [

The second slot member 153 on the left side has a shorter length of the first direction slot 152 and the second slot member 153 on the right side has a longer length of the first direction slot 152 than the left one. A relatively long one can be used.

The upper plate 120 may be provided with a second end supporting unit 160 for supporting both ends of the rubber elastic body 130 in a direction perpendicular to the first direction slot 152, .

The second end supporting unit 160 includes a second slot member 163, a second cover member 165 and a second slot member 163, both of which are formed in a direction perpendicular to the first direction slot 152, And pressurizing means 167. [ A second edge reinforcement plate 135 is provided on the upper end of the rubber elastic body 130 and a second guide groove is formed in the second edge reinforcement plate 135 in a direction perpendicular to the first guide groove described previously And a second guide protrusion is formed in the top plate 120 to guide the second edge reinforcement plate 135 to move in the direction perpendicular to the throttling axis. This is the same as in FIG.

9, when the elastic support 100 is constructed, the elastic support 100 is designed so that the direction in which a large amount of shear deformation occurs can be predicted and restored to its original state easily and appropriately in the deformed state can do.

The rest is the same as described above.

FIG. 10 is a plan view for explaining another example of an elastic support easy to maintain according to the present invention.

The first and second guide grooves and the first and second guide protrusions described above and the lower plate 110 around the rubber elastic body 130 without the stopper and / The second end support unit 160 and / or the second end support unit 160 may be installed to constitute an elastic support easy to maintain according to the present invention.

The rest is the same as described above.

11 and 12 are cross-sectional views each showing still another example of an elastic support easy to maintain according to the present invention.

11, the first end supporting unit 150 may be installed on the top plate 120 to support the upper end of the rubber elastic body 130 inward. In this case, the first edge reinforcing plate 135a is provided at the upper edge of the rubber elastic body 130, and the first guide groove 137a is formed in the first edge reinforcing plate 135a. The first guide protrusion 124a is fixed to the top plate 120.

The end portion of the first cover member 155 also supports the upper end side surface of the rubber elastic body 130 at the portion where the first edge reinforcing plate 135a is provided so that the upper end of the rubber elastic body 130 is supported by the upper plate 120). ≪ / RTI >

The length of the first slot member 153 and the length of the first cover member 155 may be adjusted so that the rubber elastic body 130 is inserted into the first guide protrusion 124a The upper end portion of the rubber elastic body 130 is moved so that the shape of the rubber elastic body 130 can be easily restored to its original state.

The first edge reinforcement plate 135a provided at the upper edge of the rubber elastic body 130 may be configured without lateral protrusions protruding in both lateral directions as shown in FIG. In this case, the first end support unit 150 supports the upper end of the rubber elastic body 130 inwardly together with the first cover member 155.

In some cases, the first edge reinforcement plate 135a may have a first lateral protrusion 135b projecting laterally as shown in Fig. In this case, the first cover member 155 is pressed by the first pressing fixture 157 to press the first slot supporting portion 150 and the first lateral protrusion 135b toward the top plate 120. In this case, the first edge reinforcement plate 135a can be fixed not to move with respect to the top plate 120, and also, it can have a negative rebound resistance function.

As shown in FIGS. 11 and 12, the second edge reinforcing plate 133a provided at the lower end of the rubber elastic body 130 may have a second lateral protrusion 133b protruding laterally. The second edge reinforcing plate 133a may be fixed to the lower plate 110 by fixing means 170 such as a bolt fixed to the lower plate 110 through the second lateral projection 133b. Other fastening means other than bolts may be used.

The rest is the same as described above.

In the elastic bearing 100, which is easy to maintain according to the present invention described above, the first end supporting unit 150 and the second end supporting unit 160 may be installed in two or more sets on one side, to be.

The present invention is likely to be used to create a quadrature device for use in bridges. The present invention is also likely to be used to create a support device for supporting various architectural structures other than bridges.

100: elastic bearing 110:
111: first guide projection 120: upper plate
121: second stopper groove 130: rubber elastic body
133: first edge reinforcement plate 134: first guide groove
135: second edge reinforcement plate 136: first stopper groove
140: stopper 150: first end supporting unit
151: first slot supporting part 152: first direction slot
153: first slot member 154: first insertion member
155: first cover member 157: first pressure fixing member
160: second end supporting unit 161: second slot supporting part
162: second direction slot 163: second slot member
164: second insertion member 165: second cover
167: Second pressurizing fastener

Claims (16)

An elastic support comprising a lower plate provided on a support structure, an upper plate attached to a bottom surface of the upper structure, and a rubber elastic body provided between the lower plate and the upper plate,
And a plurality of first end supporting units which are provided on at least one of the bottom plate and the top plate and support the end portions of the rubber elastic body on the opposite sides of the rubber elastic body inward,
The first end supporting unit includes:
A first slot supporting part provided on any one of the above and having a first direction slot formed in a direction toward the rubber elastic body and supporting the end of the rubber elastic body; And
And a rubber elastic body which is fixed to one of the first direction slot and the second elastic slot by being coupled to any one of the first direction slot and the first direction slot, 1 pressure fixture,
Wherein the first slot supporting portion includes a first slot member having the first direction slot formed therein so that the first slot member supports the side surface of the rubber elastic body or the first insertion member inserted between the first slot member and the rubber elastic body, Supporting a side surface of the rubber elastic body through a member,
Further comprising a first cover member which is provided on the first slot member and is urged by the first pressure fixing member to press the first slot member toward the one of the first slot member and the second slot member. 2. The elastic support as claimed in claim 1, wherein the first pressurizing fastener is a head bolt or a nut that is screwed to the headless bolt and a headless bolt fixed to the head. delete delete delete The method according to claim 1, wherein a first edge reinforcement plate is provided at the end portion of the rubber elastic body facing either one of the first guide grooves or the first guide grooves arranged in parallel with the first direction slot, A first guide protrusion or a first guide groove for guiding the first guide groove or the first guide protrusion is formed and the first end support unit is provided with the first edge reinforcement plate Wherein the elastic supporting member supports the side surface of the rubber elastic body. The stapler according to claim 1, wherein a second edge reinforcement plate is provided at an end of the rubber elastic body facing the other of the bottom plate and the top plate, and a stopper for restricting relative horizontal movement of the second edge reinforcement plate Wherein the elastic support is easy to maintain. 8. The apparatus according to claim 7, wherein a first stopper groove is formed in the second edge reinforcing plate, a second stopper groove is formed in the other one of the positions facing the first stopper groove, And the second stopper groove is partially inserted into the second stopper groove, respectively. The stiffener according to claim 1, wherein a second edge reinforcement plate is provided at an end portion of the rubber elastic body facing the other of the bottom plate and the top plate, and the second edge reinforcement plate A second guide groove or a second guide projection is formed and the other one of the second guide groove or the second guide groove is formed to guide the second guide groove or the second guide projection,
And a plurality of second end supporting units for supporting the end portions of the rubber elastic body facing the other one from opposite sides of the rubber elastic body in the direction perpendicular to the first direction slots,
The second end supporting unit includes:
A second slot supporting portion having a second direction slot formed in a direction toward the rubber elastic body in a direction perpendicular to the first direction slot and supporting the end portion of the rubber elastic body facing the other one; And
And a second slot for supporting the second slot in the second direction slot, the second slot being connected to the other one through the second direction slot, And a second pressurizing fixture. The apparatus of claim 9, wherein the second slot supporting portion comprises a second slot member formed with the second direction slot, and a second insertion member inserted between the second slot member and the rubber elastic body. Elastic rest for easy handling. 10. The method of claim 9, wherein the second slot supporting portion includes a second slot member formed with the second direction slot, and the second slot member supports the side surface of the rubber elastic body. support. 12. The apparatus according to claim 10 or 11, further comprising a second cover member installed on the second slot member and being pushed by the second pressure fixture to press the second slot member toward the other one Which is easy to maintain. 2. The rubber elastic body according to claim 1, wherein a first edge reinforcement plate is provided at the end portion of the rubber elastic body facing the one,
Wherein the first edge reinforcement plate has a first lateral protrusion protruding laterally,
Wherein the first cover member is urged by the first pressing fixture to press the first slot supporting portion and the first lateral protrusion toward one of the first and second pressing protrusions. [7] The apparatus of claim 6, wherein a second edge reinforcement plate is provided, the second edge reinforcement plate having a second lateral projection protruding laterally from the end of the rubber elastic body toward the other of the bottom plate and the upper plate, And is fixed to the remaining one by fixing means for fixing the second side projection to the remaining one. 15. The method of claim 14, wherein the first edge gusset has a first lateral protrusion protruding laterally,
Wherein the first cover member is urged by the first pressing fixture to press the first slot supporting portion and the first lateral protrusion toward one of the first and second pressing protrusions. The elastic support as claimed in claim 6 or 14, wherein the first cover member also supports the side surface of the rubber elastic body at a portion where the first edge reinforcing plate is installed.

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