KR101093573B1 - A spherical bridge bearing apparatus - Google Patents

Abstract

PURPOSE: A spherical bearing device for convenient maintenance is provided to easily replace parts of a spherical bearing device by slightly lifting a bridge. CONSTITUTION: A spherical bearing device for convenient maintenance comprises a main body(100) which is placed on the upper side of a bridge, a bearing plate which is coupled to a semispherical groove formed in the main body, an upper plate which is placed on the top of the bearing plate has a circular groove in which a circular plate is inserted, a cover plate(400) which is located between the bearing plate and the upper plate and includes a circular plate(422) to be coupled to the circular groove of the upper plate, a side block(500) which is coupled to the main body and caught on the upper plate, a plate(600) which is placed on the upper side of the bridge, and an anchor socket(800) which is buried in the upper side of the bridge and coupled with an anchor bolt(700) passing through the main body.

Description

Maintenance type spherical bridge apparatus {a spherical bridge bearing apparatus}

The present invention relates to a bridge device, and more particularly, a maintenance type that allows an operator to perform maintenance work easily and quickly without damaging a structure during maintenance work in a state installed between a top plate and a bridge of a bridge. A spherical stave device.

In general, bridges are affected by dynamic loads and impact forces due to traffic, strong winds, earthquakes, and the like, and displacements such as elongation and contraction occur due to temperature changes according to seasonal changes. Accordingly, Bridge Bearing Apparatus has been installed to smoothly absorb the horizontal force and displacement of the bridge to facilitate the seismic function of the bridge and to increase the service life. The bridge device is installed between the bridge deck structure and the structure of the bridge, and transmits all the loads transmitted from the bridge to the bridge. Such a chair apparatus has been developed in various forms.

For example, the spherical type bridge device is located at the contact point of the upper structure and the lower structure of the bridge, and transfers the load transmitted from the upper structure to the lower structure. It is absorbed statically to facilitate the bridge's function and to prolong its service life.

Looking at the basic structure of the above-described spherical pedestal apparatus as follows.

1 to 4, the conventional teaching device, the hemispherical groove portion is formed, the main body 10, the guides protrude on both sides, the bearing plate 20 seated on the hemispherical groove portion, and the bearing plate The upper plate 30 which is stacked on the upper surface of the upper surface 20 and protrudes from the center of the upper surface, and the lower end on both sides of the main body 10 to prevent the separation of the bearing plate 20 to the main body 10 The side block 40 is coupled to each of the upper bent portion is located in the guide grooves formed on both sides of the upper plate 30 and the circular groove on the bottom so that the circular plate is inserted into the upper portion of the upper plate 30 The upper plate 50 is formed and coupled to the upper plate of the bridge, and the anchor bolt 60 is to couple the main body 10 to the upper surface of the bridge.

This means that the bearing plate horizontally guides the upper plate which is interlocked with the movement of the bridge when vertical and horizontal displacement occurs due to seismic isolation, and the side block controls the side reaction force. 2 and 3 indicate the progression in the axial direction.

However, the above-mentioned bridge apparatus has had a problem that a lot of work process and work time is required to raise the bridge top plate and at the same time dismantle the structure of the bridge top surface when the main body is to be separated during the replacement work due to damage.

In order to solve this problem, a conventional spherical teaching device having various structures has been presented as follows.

Patent No. 10-0680180 "Study device",

A sole plate fixed to the bridge top plate and having a mount keyway recessed in a lower surface thereof; An upper plate coupled to a lower surface of the sole plate and having a base keyway recessed in an upper surface thereof; The sole plate and the upper plate are restrained so as not to be displaced from each other with respect to the horizontal force transmitted from the upper plate of the bridge by being inserted into the mount key groove and the base key groove, and a part or the whole of the sole plate and the upper plate may be removed. A restraint key for separating the upper plate from the sole plate in a horizontal direction; A lower plate fixed to the piers; It is installed between the upper plate and the lower plate is configured to include an absorbing member unit consisting of a plurality of members for absorbing vibration and horizontal force transmitted from the bridge upper plate.

This makes it possible to easily replace the old or damaged parts, since the main parts can be separated as a whole without being damaged or complicated dismantling of the bridge top and pier in the state already installed between the bridge top and the pier.

In addition, by installing a coupler having a sufficient diameter in the portion where the load of the bridge deck is concentrated to ensure a sufficient stiffness against the horizontal force.

However, in the above case, in order to install the key grooves on the upper plate and the sole plate, there is a problem in that the thickness must be thick, and even when the bolt is removed from the lower coupler, the support bottom is in contact with the non-shrink mortar surface so that the replacement of the device is easy. There is a problem that has not been, and the length of the fastening bolt is coupled to the upper side is a problem that the workability is reduced during maintenance.

Patent No. 10-0967387 "Separable bridge bearing",

The bearing seating part is provided at the center to allow the bearing plate to be seated, and the left and right sides of the main body form a structure in which the guide is upwardly projected, the bearing plate seated at the bearing seating part, and the upper part of the bearing plate. The upper plate, the side block which is fastened to the guide to prevent the separation of the bearing plate and the upper plate, the upper plate is coupled to the upper bridge and coupled to the upper portion of the upper plate, and the main body and In the bridge support consisting of a base plate that is fixed by an anchor bolt between the piers,

A protrusion is formed on the upper surface of the upper plate; The upper plate facing the protrusion is formed with a coupling hole so that the protrusion can be coupled, one side of the coupling hole is provided with a guide groove of the shape of the protrusion is opened to one side to allow the sliding flow; The guide groove is configured to be detachable to the blocking member.

This is to provide a detachable structure that can minimize the space required to repair or replace the bridge bearing, so that the replacement of parts even easier to lift the upper structure slightly.

In addition, since the protrusions form a bolt fastening structure that can be attached to and detached from the upper plate, only the corresponding parts can be replaced in the event of breakage of the protrusions due to load concentration at the top, thereby reducing maintenance costs.

However, in the above case, since the base plate is required separately, there is a problem in that the material cost is increased and the product height is increased, and the process cost is increased as the sole plate needs to be processed, and the length of the fastening bolt coupled to the upper part is maintained. Maintenance work is difficult.

Patent No. 10-0329812 "Split type oilless bearing",

A lower plate consisting of a mounting portion formed in an arc shape in the center and a support projecting from the left and right sides thereof, and a bearing plate made of a circular arc-protruding curved portion and a flat surface portion of the mounting portion in a disc shape on the other side thereof; In the oil-less bearing consisting of an upper plate connected by the lower plate and the side block,

A base plate to which a plurality of anchor bolts are attached to the bottom of the lower plate is detachably engaged with the base plate; The soul plate is detachably interlocked and installed on an upper portion of the upper plate.

This acts as a deformation in the front-rear and left-right direction and three-dimensional deformation (twisting), etc., and can be installed in a narrow space of the bridge because of the divided structure, and it is easy to repair and replace, and the overall structure of the bearing can also be reduced in weight. In particular, the anchor bolt used in the installation is to provide a bearing (stool device) that can fully exhibit its function even if using a short and simple shape unlike the conventional.

However, in the above case, since the base plate is required separately, there is a problem in that the material cost is increased and the product height is increased, and there is also a problem in that the processing cost is increased as the soul plate needs to be processed.

Patent No. 10-0722143 "oilless bearing",

Hemispherical grooves are formed to allow the bearing plate to be inserted therein, and a lower plate having a fastening portion for fastening the side block to the side, and a portion between the fastening portions of the lower plate and partially against the upward force. It includes an upper plate that is installed to catch the block and the assembled wing is fastened to the end of the upper plate to limit the displacement in a direction perpendicular to the direction in which the side block facing each other.

This is to configure the wing portion of the upper plate to be assembled so that the upper and lower plates can be replaced while maintaining the impression less than 10mm.

However, in the above case, there is a problem in that the thickness of the upper plate is unnecessarily increased due to the diameter of the fastening bolt for the assembly type wing installation, and there is a problem in that the processing cost increases as the upper plate is to be processed.

Patent 10-0958883 "Oilless bearing with a deformed top plate",

A base plate is installed so that the anchor bolt extends to the bottom; A lower plate having a hemispherical groove formed on the upper surface of the base plate and formed with a hemispherical groove for accommodating a bearing plate on an upper surface of the central plate and protruding upwardly from which fastening jaws are mounted; A bearing plate having a lower portion accommodated in the hemispherical groove; And an upper plate having a wing wall formed at a corner thereof and having a block-out portion between the wing walls. In the oilless bearing configured to include,

The upper plate is composed of a lower upper plate plate in the form of an H-shaped square plate and an upper upper plate plate protruding beyond the width of the lower upper plate plate on an upper surface of the lower upper plate plate. The upper plate is coupled to the lower portion of the bridge girders by bolt holes and bolts formed at the end of the plate, and the upper plate plate for the upper portion is to be mounted directly on the lower flange of the bridge girders.

This is to facilitate maintenance in the replacement of the upper plate and the sole plate only by separating the coupling by the modified form of the upper plate.

However, in this case, since the base plate is required separately, there is a problem in that the material cost is increased and the product height is increased, and the material cost is increased due to the length of the soul plate.

Patent No. 10-0740163 "Separable oilless bridge bearing,"

A lower plate having a shear groove formed at a central portion of the upper surface, and having a support block formed with a pair of blocks formed on the upper surface side and having a locking jaw formed at both upper and inner sides thereof; A middle plate having a shear key inserted into and coupled to the front end groove of the lower plate between the inner lower portions of the support block and formed on the lower surface thereof, the middle plate having a concave hemispherical curved groove formed on the upper surface thereof to be detachable from the lower plate; A convex hemispherical bearing plate installed in contact with the concave hemispherical curved groove of the middle plate; In the separated oilless bridge receiving including; and a top plate formed with a locking step on both sides of the upper surface in contact with the upper surface of the convex hemispherical bearing plate,

The middle plate is formed in the shape of a rectangular parallelepiped plate so as to be lifted by the height of the shear key formed on the lower surface thereof and detached between the support blocks. A through hole communicating with the supporting concrete formed on the lower plate is formed on the lower plate, and the hemispherical bearing plate is made of brass. It is a manufactured hemispherical bearing plate.

This can replace the damaged part of the bridge support without dismantling the bottom plate and the supporting concrete, so that the bridge support can be repaired more quickly and easily, and the raising height and the maintenance period of the bridge top for repairing the bridge support can be reduced. And, it is to ensure a higher durability by discharging the bubbles generated when forming the concrete when the bridge support is installed.

However, in the above case, since the concave hemispherical curved groove is manufactured separately, there is a problem in that the processing cost is increased, and the lower plate has a problem that cannot be replaced.

Accordingly, the present invention was made to improve the problems of the conventional spherical teaching device as described above, the object of the present invention,

first; In the case of spherical bridge system, it is possible to replace the parts that make up the spherical bridge system with minimal increase of the bridge without damaging the structure.

second; The operator can quickly and quickly dismantle and replace with new parts so that they do not interfere with the flow of the vehicle through the bridge.

The present invention to achieve the above object,

Hemispherical grooves are formed, the main body protruding guides on both sides, the bearing plate seated on the hemispherical groove portion, the upper plate is laminated on the upper surface of the bearing plate and the circular plate protrudes in the center of the upper surface, and the bearing plate In order to prevent the separation from both sides of the main body is coupled to the lower body and the bent portion of the upper side is located in the guide groove formed on both sides of the upper plate, and the upper plate of the upper plate to be inserted into the circular plate In the spherical scaffolding device including a circular groove formed in the bottom surface and the upper plate is coupled to the upper plate of the bridge, and the anchor bolt to couple the main body to the upper surface of the bridge,

The upper plate,

In the center of the upper surface is separated into an upper fixed plate and a lower movable plate protruding from the center, the corresponding surface is formed in contact with each other, the surfaces in contact with each other are formed parallel to each other or at least one side is inclined, the movable plate slides outward It becomes possible to be detachable, characterized in that the fixed plate and the moving plate in contact with each other is fixedly coupled through the fastening means.

In this case, both sides of the fixing plate may be formed integrally or detachably on both sides so that the area of the fixing plate is larger than that of the moving plate, and the fastening bolt may be coupled to the upper plate through the extension.

In addition, the guide groove is preferably formed so that the bent portion of the side block is inserted into both sides of the fixing plate.

On the other hand, the main body is seated on the pier upper surface and the plate having a plurality of guide holes so that the anchor bolt is guided up, buried in the pier on the bottom of the plate anchor bolt formed so that the anchor bolt is coupled The socket may be integrally coupled.

The present invention, in the replacement of the spherical pedestal device can be removed by removing the fastening bolts and the moving plate from the fixed plate during the replacement operation due to the damage, and also by separating the anchor device from the anchor socket to remove the main body As it can be dismantled from the top of the pier, there is an effect that does not need to damage the top of the pier.

In addition, as the joint surface of the fixed plate and the moving plate which forms the upper plate and contact each other has a horizontal or inclined angle and can be variously applied according to the inclined angle, the bearing plate is inclined due to displacement force and is inclined even when the inclined state is maintained. When applied to the upper plate having an inclination angle corresponding to the maintenance is convenient effect.

1 is a perspective view of a conventional spherical teaching device,
2 is a longitudinal cross-sectional view of FIG.
3 is a side cross-sectional view of FIG.
4 is a plan view of FIG.
5 is a first embodiment of the spherical pedestal apparatus according to the present invention;
6 is a longitudinal sectional view of FIG. 5;
7 is a side cross-sectional view of FIG. 6, FIG.
8 is a plan view of FIG. 5;
9 is a second embodiment of the spherical pedestal apparatus according to the present invention;
10 is a left cross-sectional view using state of FIG.
FIG. 11 is a right side cross-sectional view of FIG. 9.
12 is a plan view of the flat cross-sectional view of FIG.
13 is a state in which the main body is coupled to the upper surface of the piers as an embodiment according to the invention,
14 is a coupling state of the fixed plate and the movable plate as an embodiment according to the present invention,
15 is a plan view of the state of use of FIG.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings, and in the following description, well-known parts will be omitted when it is determined that they may blur the gist of the present invention. .

The present invention relates to a spherical bridge device provided between a bridge deck and a bridge.

5 to 8, the main body 100 mounted on the upper surface of the pier as shown in FIGS. 5 to 8, a bearing plate 200 coupled to the main body 100, and an upper plate coupled to the bottom surface of the bridge upper plate ( 300, an upper plate 400 positioned between the bearing plate 200 and the upper plate 300, and a side block 500 coupled to the main body 100 and simultaneously caught by the upper plate 400. And an anchor socket 800 embedded in the piercing upper surface, and an anchor bolt 700 embedded in the piercing upper surface and coupled to the anchor bolt 700 passing through the main body 100.

The main body 100 has the same shape as the known art, and the bottom surface has a square or rectangular shape, and guide holes are formed at each corner to guide the anchor bolts 700, and the top surface has a hemispherical groove portion 120. ) Is formed. In addition, both guides 140 are formed to protrude from the upper edge of the main body 100 to guide the upper plate 400 to be described later.

The bearing plate 200 has a disk shape as in the known art, and is formed as a spherical portion so that the bottom surface is inserted into and seated in the hemispherical groove portion 120 formed in the main body 100, and the upper surface is formed as a flat smooth surface. do.

The upper plate 400 is separated into an upper fixing plate 420 and a lower moving plate 440 as the core configuration of the present invention made of a square shape when viewed from the upper side.

The fixing plate 420, the circular plate 422 is protruded to be coupled to the circular groove 320 formed on the bottom of the upper plate 300 at the center of the upper surface, the bottom surface is formed as a smooth surface.

The movable plate 440, the upper and lower surfaces are made of a smooth surface, the bottom is mounted on the upper surface of the bearing plate 200, the upper surface is slidably in close contact with the bottom of the fixing plate 420, fastening means It is fixedly coupled to the fastening bolt 444.

The fastening bolt 444 may be fixed to the upper plate 300 together with the fixing plate 420 in a state where the head is locked to the moving plate 440.

In addition, the surfaces in which the fixing plate 420 and the moving plate 440 are in contact with each other may be formed with not only smooth surfaces parallel to each other but also different inclination angles. When the displacement force is generated in the bearing plate 200, the upper surface of the bearing plate 200 has an inclination, and correspondingly, the upper surface of the upper plate 400 is closely coupled to the upper plate 300 as in the initial state. To make it possible.

That is, even when the bearing plate 200 is inclined by the displacement force, the maintenance work can be performed by replacing only the upper plate 400.

As another example, as shown in FIGS. 8 to 11, the fixing plate 420 may have expansion portions 426 on both sides such that both areas of the fixing plate 420 are larger than the area of the moving plate 440. It will be possible to make it form.

This is to be coupled to the upper plate 300 through a fastening bolt 444a separate from the fastening bolt 444 through the expansion part 426.

In addition, as another example, as shown in FIG. 12, the expansion part 426 may be coupled to the outside of the fixing plate 420 through the fastener 444a in a detachable manner rather than in one piece.

In addition, the guide grooves 424 may be formed so that the bent portion 520 of the side block 500 is inserted into both sides of the fixing plate 420.

The side block 500 is coupled to the guides 140 formed on both sides of the main body 100 so as to prevent side reaction force of the bearing plate 200 and the bent portion 520 bent in a direction corresponding to each other at the top. ) Is formed. The bent portion 520 is located in the guide grooves 424 formed on both sides of the fixing plate 420.

The upper plate 300 is mounted on the fixing plate 420, the circular groove 320 is formed on the bottom surface so that the circular plate is inserted, the upper surface is coupled to the upper plate of the bridge.

13, the body of the anchor socket 800 is embedded in the upper surface of the piers, the upper end of the anchor socket 800 is integrally coupled to the plate 600 is mounted on the upper surface of the piers.
In the surface of the plate 600, the guide hole is formed to penetrate up and down so that the anchor socket 800 can be guided to the same axial position as the guide hole formed at the edge of the main body 100.

The anchor socket 800, the bolt hole 820 is opened upwardly in the center is formed, the upper end is integrally coupled to the guide hole formed in the plate 600.

The anchor bolt 700 is coupled to the bolt hole 820 of the anchor socket 800 through the guide hole of the main body 100 to couple the main body 100 to the pier upper surface. In addition, the anchor socket 800 and the plate 600 may be integrally molded.

This is to allow the main body to be separated without damaging the pier when the main body is separated from the pier.
In addition, as shown in FIG. 14 and FIG. 15, the bolt coupling hole 420h is further formed on the surface of the fixing plate 420 so that the moving plate 440 with respect to the fixing plate 420 may be in an initial position. Even in the moved state can be fixed fixed through the fastening bolt 444 coupled to the moving plate 440.

100: main body
120: groove 140: guide
200: bearing plate
300: upper plate 320: circular groove
400: upper plate
420: fixing plate 422: round plate
424: guide groove 426: extension
440: moving plate 444,444a: fastening bolt
500: side block 520: bend
600: plate
700: anchor bolt
800: anchor socket 820: bolt hole

Claims (5)

A hemispherical groove is formed and the guide plate protrudes on both sides, a bearing plate 200 seated on the hemispherical groove, and an upper plate laminated on the upper surface of the bearing plate and having a circular plate protruding from the center of the upper surface. 400 and a side block 500 having lower ends coupled to the main body at both sides of the main body so as to prevent separation of the bearing plate, and bent portions at upper ends of the guide grooves formed at both sides of the upper plate; The upper plate 300 is formed on the upper surface of the upper plate so that the circular plate is inserted so that the circular plate is inserted, and the upper plate 300 is coupled to the upper plate of the bridge, and the anchor bolt 700 to couple the main body to the upper surface of the bridge. In the spherical teaching device
The upper plate 400,
The upper plate is divided into a fixing plate 420 and a lower movable plate 440 protruding from the center of the upper surface, the corresponding surface is formed in contact with each other, the surfaces in contact with each other are formed parallel to each other or at least one side is inclined The movable plate 440 is slidable in an outward direction with respect to the fixing plate 420 to be detachable, and the fixing plate 420 and the movable plate 440 are fastening means when assembled. 444) a maintenance-type spherical stabilization device characterized in that the coupling is fixed.
The method according to claim 1,
Expansion portions 426 are integrally formed or detachably formed at both sides of the fixing plate 420 so that the two orthogonal areas of the fixing plate 420 are larger than the area of the moving plate 440. Maintenance-type spherical pedestal device, characterized in that the fastening bolt is coupled to the upper plate (300).
The method according to claim 1 or 2,
Maintenance type spherical scaffolding device is characterized in that the guide groove 424 is formed so that the bent portion of the side block 500 is inserted into both sides of the fixing plate (420).
The method according to claim 1,
The main body 100 is seated on the upper surface of the pier and the plate 600 having a plurality of guide holes is raised so that the anchor bolt 700 is guided, and the bottom surface of the plate 600 is embedded in the pier and the Maintenance type spherical scaffolding device, characterized in that the anchor bolt 800 is formed integrally coupled to the bolt bolt 820 to be coupled to the anchor bolt (700).
The method according to claim 1,
The bolt coupling hole 420h is further formed on the surface of the fixing plate 420 so that the fastening bolt 444 coupled to the moving plate 440 is coupled even when the fixing plate 420 is moved from its initial position. A maintenance-type spherical stabilization device characterized by being fixed.

Images