KR101939149B1 - Pot bearing with drawing protecting punction - Google Patents

Abstract

The present invention relates to a port bearing manufactured for preventing a pulling force which can effectively resist a pulling force while having a function of a port bearing, wherein the port beading includes a rubber pad formed with a center hole and accommodated in a rubber pad groove; An upper plate having a central hole formed through a socket portion protruding from a bottom surface thereof and having a lower end of the socket portion inserted and fixed to an upper end of a center hole of the base plate; A lift-up draw-off port in the form of a bar, which passes through the center hole of the upper plate, the center hole of the rubber pad, the lower end is fixed to the center hole of the base plate and the upper end is fixed inside the upper center hole of the upper plate do.

Description

{POT BEARING WITH DRAWING PROTECTING PUNCTION}

The present invention relates to a port bearing made for preventing a draw. More specifically, the present invention relates to a port bearing which is designed to prevent a pull-out force, which has a function of a port bearing and can more effectively resist a pulling force.

Bridges should have a structure that can properly cope with deformation and warping so that their safety and durability can be ensured. In general, a bridge bearing (SHOE) is inserted between a bridge superstructure (slab) and a substructure The bridge will be constructed.

In general, bridge supports are installed between bridges and bridges or alternations to absorb deformation and torsion of bridges and to transfer various loads from bridges to bridges or alternations. Branch types have been developed.

FIG. 1A shows a construction cross-sectional view and an installation view of a port support of a conventional bridge support.

That is, the port support 1 is formed by placing the rubber 12 on the lower plate 11 and placing the intermediate plate 13 thereon to obtain rotation by the elastic deformation of the rubber 12, PTFE) plate 14 and lubricating oil is injected to reduce the friction coefficient against the displacement.

The rubber contained in the bottom plate acts like a fluid to distribute the vertical reaction force evenly and obtain a large rotation angle. Since the height of the support is low, the rotation safety is high and the eccentricity of the load due to rotation is small.

These port supports (1) are fixed type and one-way type (diagonal axis, diagonal axis perpendicular type), and may be classified according to the direction of operation.

FIG. 1B shows the formation of the negative-reaction-resistance device 5 in such a conventional port support.

That is, a port support including an upper plate installed at a lower portion of a bridge upper plate, a lower plate installed at an upper portion of a pier, a buffer member (rubber) inserted between the upper and lower plates, and an anchor, The auxiliary reaction force resistance device 5 includes a lower plate 2 and an upper plate 4 and an anchor 4 embedded in the lower plate and a sub reaction force resistance device 5 having a letter A cross section,

And a bolt engaging portion 52 which is bolted to the lower plate 3 so that the engaging portion 51 is positioned between the recessed portion 21 formed on the upper plate and the auxiliary reaction force resisting flange 22, Sectional shape.

That is, the auxiliary reaction force resistance device has a 'A' cross-sectional shape and is connected to the bottom plate by a bolt, so that maintenance is easy, and when an excessive upper movement including the top plate occurs, It works to be able to give.

In the case of a large earthquake, the large lateral force due to the long-term interaction of the bridges is accommodated by adjusting the quantity and size of the bolts of the anchor portion and the upper plate, and the negative- So as to contribute to enhancement of seismic performance and safety of the bridge.

As a result, in the conventional port support, the negative-reaction-resistance device prevents the pull-out by attaching the block-shaped member to the outer side and hanging the upper plate. However, since it is exposed to the outside over time, And there is a limit to install a plurality of pieces for pull-out resistance as it is installed on the side.

Korean Registered Patent No. 10-0877836 (Name of invention: port bearing, date of announcement: Jan. 12, 2009) Korean Registered Patent No. 10-0881604 (Name of the invention: Anti-rebound port base, date of announcement: March 26, 2009) Korean Unexamined Patent Application Publication No. 2002-0094891 (entitled: Rectangular Seismic Port Bearing Combined with Anchor and Bolted, Date of Announcement: December 18, 2002) Korean Unexamined Patent Publication No. 10-2007-0115813 (entitled "Seismic Retrofitting Method of Existing Bridges, Date of Announcement: December 06, 2007)

SUMMARY OF THE INVENTION Accordingly, the present invention has been made to solve the above-mentioned problems occurring in the prior art, and it is an object of the present invention to provide a port bearing which is more effective for preventing a pull-out,

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In order to achieve the above object, according to the present invention, there is provided a port bearing manufactured for preventing a pull-out, comprising: an upper base plate having a rubber pad groove formed in a ring shape around a center hole, A guide block inserted into the sliding groove protruding from a side surface of the body; A lower base plate fixedly installed on both upper ends of both guide plates and formed below the upper base plate; A rubber pad formed with a center hole and accommodated in the rubber pad groove of the upper base plate; An upper plate having a central hole formed through a socket portion protruding as a cylindrical member on a bottom surface thereof and having a lower end of the socket portion inserted and fixed to an upper end of a center hole of the upper base plate; A lift-up draw-out bar in the form of a bar, which is fixed in the center hole of the upper plate 170, with the lower end thereof fixed to the center hole of the lower base plate through the center hole of the upper plate, The upper base plate is guided by both guide plates and moves in one direction while the upper plate is not pulled out from the upper base plate by the up-lift drawing stopper, And the upper lift nut is fastened to the upper lock nut so that the upper end of the up-lift nut is fastened and fixed to the upper lock nut. The up- A threaded portion is formed on the lower end peripheral surface so as to be screwed, And the upper end is screwed to the upper plate by the upper lock nut to resist the pulling out of the port bearing, and a bottom friction plate and a bottom stainless plate are interposed between the upper and lower base plates, And the bottom friction plate is formed in the form of a horizontal plate provided to be inserted into a groove formed in the bottom surface of the upper base plate to absorb and transmit the displacement transmitted from the upper base plate and to transmit the working load to the lower base plate, The stainless steel plate is positioned between the bottom friction plate and the lower base plate so as not to interfere with the action of the bottom friction plate. The center hole of the base plate is formed with a cylindrical socket portion protruding upward in the center of the rubber pad groove, There Up there helix is formed - with the lift so that the pull-out room of the earth at the bottom fastening screws, the center hole of the ring-shaped rubber pad is designed to be installed in a portion sandwiched between the outer peripheral surface the cylindrical socket.

The port bearing manufactured for the pull-out prevention for the fixed end and the one-way movable end according to the present invention uses the up-lift pull-out fixture formed by the fastening method to greatly enhance the pull-out prevention effect, Thereby making it possible to more effectively prevent the withdrawal of the port bearing.

FIGS. 1A and 1B are a perspective view of a conventional port bearing,
FIGS. 2A, 2B, and 2C are a top view, a perspective view, and an assembled perspective view, respectively, of a port bearing manufactured for preventing the fixed end of the present invention.
FIGS. 3A, 3B and 3C are a configuration elevation, a perspective view, and an assembled perspective view, respectively, of a port bearing manufactured for preventing unidirectional movable end withdrawal of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings, which will be readily apparent to those skilled in the art. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. In order to clearly illustrate the present invention, parts not related to the description are omitted, and similar parts are denoted by like reference characters throughout the specification.

Throughout the specification, when an element is referred to as "comprising ", it means that it can include other elements as well, without excluding other elements unless specifically stated otherwise.

[Port bearing (100) - Fixed end made for withdrawal prevention]

FIGS. 2A, 2B, and 2C are a perspective view, a perspective view, and an assembled perspective view, respectively, of a port bearing 100 manufactured for preventing the fixed end of the present invention.

The port bearing 100 includes a base plate 110, a rubber pad 150, an upper plate 170, an up-lift draw-off region 180, and an upper lock nut 190.

First, the base plate 110 serves as a plate fixed to an unillustrated bridge substructure (for example, a pier) by an anchor bolt or the like, and may be formed in a variety of forms.

At this time, the center hole 111 is formed at the center of the base plate 110 so that the up-and-down drawing projection 180 can be inserted into the center hole 111, So that it can be screwed to the lower end of the up-and-down pull-out stopper 180.

And the rubber pad grooves 112 are formed in the form of a ring-shaped groove around the center hole 111. The rubber pad 150 is accommodated in the rubber pad groove 112.

Next, the rubber pad 150 serves to offset and absorb the displacement of the bridge superstructure (for example, girder) due to the temperature and the action load, and the up-lift drawing- The center hole 151 is formed.

The upper plate 170 serves as a plate fixed by an anchor bolt or the like of a soul plate pre-installed on a bridge overhead structure (for example, a girder). The upper plate 170 is formed in the form of a horizontal plate .

The lower end of the socket portion 172 is connected to the base plate 110 so as to be inserted at a certain depth on the upper end of the rubber pad groove 112 of the base plate 110 as shown in FIG.

A center hole 171 is formed at the center of the upper plate 170 to penetrate through the socket portion 172 as shown in FIGS. 2A and 2B so that the up-and-down pull- And the upper end of the center hole 171 is widened to accommodate the upper lock nut 190, which will be described later.

2A and 2B, a threaded portion is formed on a lower end peripheral surface of the up-draw draw-out stopper 180 so that a lower end thereof can be screwed into a center hole 111 of the base plate 110, A threaded portion is also formed on the outer circumferential surface so that the upper lock nut 190 can be screwed.

The up-lift draw-off zone 180 is installed through the center hole 171 of the upper plate 170 and the center hole 151 of the rubber pad 150

The lower end is screwed to the base plate 110 and the upper end is fastened to the upper plate 170 by the upper lock nut 190 to play an important role in resisting the pulling out of the port bearing due to the operating load .

That is, as shown in FIG. 2C, it can be seen that a single up-lift draw-off stopper 180 is provided to prevent the draw-out of the port support and to pass through the central portion of the port support.

The upper lock nut 190 is accommodated in the upper extension portion of the center hole 171 of the upper plate 170 as a lock nut for screwing the up-lift drawing projection 180 into the center hole of the upper plate 170.

Further, it can be seen that the upper finishing plate 160 is formed to be fitted to the upper surface of the upper plate so that the upper surface of the upper lock nut 190 is received in the upper end of the center hole of the upper plate, It can be seen that the mounting groove 173 is formed so that the upper finishing plate can be mounted.

[Port bearing (200) designed for pullout prevention - one-way movable end)

FIGS. 3A, 3B and 3C illustrate a configuration view, a perspective view, and an assembled perspective view, respectively, of a port bearing manufactured for preventing unidirectional movable end withdrawal of the present invention.

The difference from the port bearing 100 used as a fixed end is that the base plate is divided into an upper base plate 210 and a lower base plate 220, And a bottom friction plate 240 and a bottom stainless plate 250 are formed between the upper base plate 210 and the lower base plate 220.

3A, the port bearing 200, which is used as a one-way movable end, is constructed of an upper base plate 210, a lower base plate 220, a guide plate 230, a rubber pad 150, Plate 170, an up-lift draw-off zone 180, and an upper lock nut 190.

3A and 3B, the upper base plate 210 is installed as a one-way movable end so as to be movable in one direction (moving direction) on the lower base plate 220 and is formed in the form of a horizontal plate, And a sliding groove 213 in the form of a horizontal groove is formed at the side.

Further, as shown in FIG. 3A and FIG. 3B, the upper base plate 210 has a center hole 211 formed at the center thereof so that the up- It can be seen that the rubber pad grooves 212 are formed in the form of grooves in a ring shape. The rubber pad grooves 212 are the same as those in which the rubber pads 150 are accommodated.

The inner circumferential surface of the center hole 211 is also threaded to be screwed to the lower end of the up-lift draw-
The center hole 211 of the base plate 210 is formed with a cylindrical socket portion 214 protruding upward in the center of the rubber pad groove 212. A threaded portion is formed on the inner peripheral surface of the cylindrical socket portion 214 The center hole 151 of the ring-shaped rubber pad 150 is fitted to the outer circumferential surface of the cylindrical socket portion 214 while the lower end of the up-lift draw-

In addition, both guide plates 230 are configured to guide the upper base plate 210 on the lower base plate 220 in one direction.

3A and 3B, a guide block 231 protruding from one side of the upper end of the guide plate 230 is inserted into the sliding groove 213. The body 232 is fastened to the lower base And is fixed to the plate 220.

The upper base plate 210 having the sliding groove 213 inserted in the guide block 231 of the guide plate 230 fixed to the lower base plate 220 is guided in one direction and is slid to move in one direction .

It is preferable that a stainless steel plate is further formed on the contact surface of the guide plate 230 in contact with the sliding groove 213 so as to facilitate the sliding.

Further, a bottom friction plate 240 and a bottom stainless plate 250 are installed between the upper base plate 210 and the lower base plate 220.

3A and 3B, the bottom friction plate 240 is formed in the shape of a horizontal plate that is inserted into a groove formed in the bottom surface of the upper base plate 210, and absorbs the displacement transmitted from the upper base plate 210 And transmits the working load to the lower base plate 220.

3A and 3B, the bottom stainless steel plate 250 is formed between the bottom friction plate 240 and the bottom base plate 220 to prevent the bottom friction plate 240 from interfering with the action of the bottom friction plate 240 Able to know.

It can be seen that the bottom friction plate 240 and the bottom stainless steel plate 250 are formed in the form of a horizontal plate without a separate center hole because the up-lift draw-off region 180 to be described later is not penetrated.

3A and 3B, the lower base plate 220 serves as a plate fixed to an unillustrated bridge lower structure (for example, a bridge bridge) by an anchor bolt or the like, and is formed as a horizontal plate. However, Unlimited is as noted.

The upper and lower base plates 220 are fixed to the upper and lower sides of the upper and lower guide plates 220 by fastening means and the lower stainless plate 250 is positioned between the guide plates 220 It can be seen that it is accommodated.

3A and 3B, the rubber pad 150 serves to offset and absorb the displacement of the bridge superstructure (e.g., girder) due to the temperature and the operation load, A center hole 151 is also formed so that the pullout stopper 180 can pass through.

3A and 3B, the upper plate 170 serves as a plate fixed by an anchor bolt or the like of a sole plate pre-installed on a bridge overhead structure (for example, a girder), and is provided with a socket portion 172 It can be seen that they are formed in a flat plate shape.

3C, the lower end of the socket portion 172 is inserted into the upper end of the rubber pad groove 212 of the upper base plate 210 to be inserted into the upper base plate 210 at a predetermined depth. The socket portion 172 is formed as a cylindrical member protruding from the bottom surface of the upper plate 170 and has a center hole 171 passing through the socket portion 172. The center hole 211 of the upper base plate 210, And the lower end of the socket part 172 is inserted and fixed at the upper end.

A center hole 171 passing through the socket portion 172 is formed at the center of the upper plate 170 so that the up-and-down pull-out stopper 180 can be inserted therethrough, The upper end of the upper locknut 171 is widened to accommodate the upper locknut 190 described later.

3A and 3B, a threaded portion is formed on the lower end peripheral surface of the up-draw draw-off stopper 180 so that the lower end of the up-draw draw-off stopper 180 can be screwed into the center hole 111 of the upper base plate 210 And a threaded portion is formed on the upper circumferential surface so that the upper lock nut 190 can be screwed.

The up-lift draw-off zone 180 is installed through the center hole 171 of the upper plate 170 and the center hole 151 of the rubber pad 150

The lower end of the upper plate 190 is screwed to the upper base plate 210 and the upper end is fastened to the upper plate 170 by the upper lock nut 190 so as to resist the pulling of the port bearing due to the operating load. .

Also, as shown in FIG. 3C, it can be seen that one up-lift draw-off fixture 180 is installed to prevent the port support from being pulled out and to pass through the central portion of the port support.

3A and 3B, the upper lock nut 190 is a lock nut for screwing the up-and-down pull-out stopper 180 into the center hole of the upper plate 170. The upper lock nut 190 has a center hole 171 ) Upper extension portion.

Further, it can be seen that the upper finishing plate 160 is formed to be fitted to the upper surface of the upper plate so that the upper surface of the upper lock nut 190 is received in the upper end of the center hole of the upper plate, It can be seen that the mounting groove 173 is formed so that the upper finishing plate can be mounted.

It will be understood by those skilled in the art that the foregoing description of the present invention is for illustrative purposes only and that those of ordinary skill in the art can readily understand that various changes and modifications may be made without departing from the spirit or essential characteristics of the present invention. will be. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive. For example, each component described as a single entity may be distributed and implemented, and components described as being distributed may also be implemented in a combined form.

The scope of the present invention is defined by the appended claims rather than the detailed description and all changes or modifications derived from the meaning and scope of the claims and their equivalents are to be construed as being included within the scope of the present invention do.

100, 200: Port bearings designed for drawing prevention
110: base plate 111: center hole
112: rubber pad groove 150: rubber pad
151: center hole 160: upper finishing plate
170: upper plate 171: center hole
172: socket portion 173: mounting groove
180: Up-lift exit zone 190: Upper locknat
210: upper base plate 211: center hole
212: rubber pad groove 213: sliding groove
214: Cylindrical socket part 220: Lower base plate
230: guide plate 231: guide block
232: body portion
240: bottom friction plate 250; Bottom stainless steel plate

Claims (8)

delete delete delete delete An upper base plate 210 having a rubber pad groove 212 formed in a ring shape around the center hole 211 and formed with sliding grooves 213 in the form of horizontal grooves drilled on both sides;
A guide block 230 inserted into the sliding groove 213 is protruded from a side surface of the body portion 232;
A lower base plate 220 fixed to both upper ends of the both guide plates 230 and formed below the upper base plate 210;
A rubber pad 150 formed with a center hole 151 and accommodated in the rubber pad groove 212 of the upper base plate 210;
And a lower end of the socket portion 172 is inserted and fixed to the upper end of the center hole 211 of the upper base plate 210. The lower end of the socket portion 172 is inserted into the center hole 211 of the upper base plate 210, An upper plate 170;
A lower end of the center hole 171 of the upper plate 170 and a center hole 151 of the rubber pad 150 are fixed to the center hole 211 of the lower base plate 220, Lift up draw-off zone (180) in the form of a rod fixed within the upper end of the center hole of the upper-
The upper base plate 210 moves in one direction while being guided by the guide plates 220 while the upper plate 170 is not pulled out of the upper base plate 210 by the up- ,
The upper lock nut 190 is received in the upper extended portion formed by expanding the upper portion of the center hole 171 of the upper plate 170 and the upper end of the up- The up-lift draw-off stopper 180 has a threaded portion formed at its lower end outer circumferential surface so that a lower end thereof can be screwed into a center hole 211 of a lower base plate 220, The upper lock nut 190 is screwed to the upper plate 170 by the upper lock nut 190 to resist the pulling of the port bearing,
A bottom friction plate 240 and a bottom stainless plate 250 are installed between the upper base plate 210 and the lower base plate 220. The bottom friction plate 240 is formed in a groove And absorbs the displacement transmitted from the upper base plate 210 and transmits the acting load to the lower base plate 220. The lower stainless plate 250 is coupled to the lower friction plate 240 and the lower base plate 220 so as not to interfere with the operation of the bottom friction plate 240,
The center hole 211 of the base plate 210 is formed with a cylindrical socket portion 214 protruding upward at the center of the rubber pad groove 212. A threaded portion is formed on the inner peripheral surface of the cylindrical socket portion 214 The center hole 151 of the ring-shaped rubber pad 150 is fitted to the outer circumferential surface of the cylindrical socket portion 214 while the lower end of the up-lift draw-
Port bearing made for withdrawal prevention. delete delete 6. The method of claim 5,
The upper surface of the upper extension portion is further formed with a mounting groove 173 so that the upper finishing plate 160 is mounted on the mounting groove 173 so that the upper lock nut 190 is received in the upper plate central hole upper extension portion, The port bearing is designed for pullout prevention.

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