KR101468068B1 - Close adhesion device for bridge - Google Patents

Abstract

The present invention relates to a bearing device for a bridge and, more specifically, to a bearing device for a bridge, which effectively absorbs repetitive compression loads through the bearing device for supporting the upper structure and piers of a bridge, prevents deformation, and makes the coupled state secure. The bearing device for a bridge according to an embodiment of the present invention comprises: a girder which has a bottom where the bearing device is installed; an upper plate which is installed on the bottom end of the girder; a lower plate which is installed on a pier; an elastic body which absorbs compression loads and shear loads; a first height adjusting unit which adjusts the height of the upper and lower plates; and a bridge bearing support plate which is coupled to the lower plate.

Description

Close adhesion device for bridge "

More particularly, the present invention relates to a bridge for a bridge, and more particularly, to a bridge structure for effectively absorbing a repeated compression load through a bridge structure supporting an upper structure of a bridge and a bridge, The measurement of displacement can be done through the means provided at the corner of each end of the plate end to improve the safety of the bridge and to fix the concrete device to the excavated concrete surface, It is resistant to the dominance of negative reaction force and responds to bending, twisting and horizontal load in three dimensions. It is easy to construct and repair through height adjustment means and minimizes cost related to use of heavy equipment. The present invention relates to a bridge apparatus for a bridge capable of bridge construction work.

Generally, a bridge is provided with a top plate having a predetermined length, and a bridge pillar is installed directly below the bridge to support the weight of the upper structure and the weight of the vehicle. Between the top plate and the bridge, So as to resist the load of the upper plate.

In this case, an interlocking device is an intermediate lubrication device which is located at the contact point between the upper structure of the bridge and the lower bridge, and transfers the load transferred from the upper structure to the lower bridge without impact and prevents the change from earthquake, Bearing Equipment.

That is, the bridge is adaptable to the bridge load and absorbs the expansion and contraction, so that the bridge is not directly transmitted to the pier or the bridge, and the buffer function of the bridge is applied to smooth the function of the bridge and to extend the durability It is necessary to determine the type and arrangement of the upper structure type, the length between the upper plate or pier, the reaction force of point reaction, durability and so on. Especially in curved bridge, And the rotational action are fully examined and the form and arrangement are determined and applied.

Such an opening and closing function is a basic function, and it has the function of support, rotation, and slip (movement).

First, a supporting function for performing basic functions is a function for supporting the charge (total load) of the upper structure equally to the reaction force of the main structure of the lower structure, Function is a function that allows rotation freely so that no self-weight of the upper structure and binding force due to rotation of the bridge end caused by external load do not occur. Slip (movement) function is caused by temperature, drying shrinkage, And is free to allow expansion and contraction by being slid so as not to generate a restraining force by expansion and contraction.

A very simple form that can be installed without a separate part as a calibration device conforming to the basic functions of such a calibration device is an elastic calibration device.

Generally, an elastic bridge is constructed by reinforcing a rubber layer including at least one steel plate between an upper structure (road layer) and a lower structure (bridge) to increase the load bearing capacity of the bridge.

Such an elastic bridge device is effective in bearing function in an elastic deformation without frictional force, has a large rotation angle, has an omnidirectional rolling function and a slippery function, does not need a lubricant injection, can be formed in arbitrary shape, .

That is, in the bridge device according to the related art, a pad of a highly elastic material is formed between the upper and lower plates, and a guide bracket is formed such that the pad is not separated, A guide bracket having elastic members made of a plurality of iron cores and having a plurality of iron cores formed inside one surface of a fitting plate having bolt holes formed at both ends of the guide bracket, So that the buffer function and the pad are supported.

 However, according to the conventional art, a bridge device for absorbing a moving displacement such as a deflection of an upper structure caused by dry shrinkage due to a dead load and an active load acting on the upper structure and a temperature change acting on the upper structure, The pad can absorb the shear load displaced in one direction due to the fact that the pad is simply fixed by the guide bracket, but the displacement can not be effectively absorbed simultaneously with the no-load load of the upper structure.

That is, in the upper structure of the bridge, a moving displacement that is elongated or contracted according to the temperature displacement is generated, and a cyclic compression load of the upper structure is generated. However, in the conventional sliding device, the repeated compressive load and the moving displacement load are concentrated on the pad, When a stress (movement displacement and compressive load) equal to or greater than a reference value is transmitted to the pad, the guide bracket fixed to the upper and lower structures allowing the pad to move in one direction is disengaged or broken The pad is not able to properly perform the functions of supporting, rotating, and sliding, which are basic functions of the pad.

In particular, when the load of the support, the roll, and the slip stress is repeatedly concentrated on the pad, the elasticity of the accumulated pads causes aging of the pad, thereby failing to function properly as a calibration device, shortening the life of the calibration device, When the structure is pulled up, there is a risk of collapsing without a separate means for measuring the degree of balance.

In addition, since the upper and lower plates are fixed to the bridge by bolts, the displacement and compressive load generated in the bridge are transferred to the upper and lower plates through the bolts, and the pad is subjected to ultimate stress Absorbing structure.

As such, the stress transmitted to the calibration device causes the stress to be transmitted to the bolt having a relatively weak strength as compared with the pad, causing the shear phenomenon of the bolt to cause the phenomenon that the calibration device is separated or separated from the bridge When the fixture of the bridge is disconnected from the bridge, the bridge reaction force and durability of the bridge are deteriorated, which poses a serious risk to the safety of the bridge.

1. Korean Patent Registration No. 10-0589129 (Jun. 2006) 2. Korean Patent Registration No. 10-0986696 (Oct. 4, 2010)

SUMMARY OF THE INVENTION Accordingly, the present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a bridge structure that connects a bridge structure with a pier and effectively absorbs a displacement displacement and a repeated compression load And a displacement measuring means for measuring the horizontal and vertical height of the upper structure and the balance of the upper structure is provided at one edge of each end of the plate to prevent a safety accident in advance And the concrete apparatus is bound and fixed to the excavated concrete surface to resist resistance to the control of the lateral force and the negative reaction force to cope with bending, twisting and horizontal load in three dimensions, It is easy to construct and repair through means, and the cost related to the use of large heavy equipment is minimized. You can get a good effect neunghage seeks to provide a device for gyojwa bridges.

In order to achieve the above object, the bridge device according to the embodiment of the present invention is installed between an upper structure 3 on which a road is laid and a bridge 5 supporting a lower portion of the upper structure 3 An upper plate 10 provided at the lower end of the upper structure 3 of the bridge and a lower plate 20 disposed corresponding to the lower portion of the upper plate 10 and installed at the bridge 5, An elastic body 30 positioned between the plate 10 and the lower plate 20 to absorb the repeated compression load and the shear load transmitted from the upper structure 3 and an elastic body 30 disposed between the upper plate 3 and the lower plate 20, And a girder (100) capable of performing a new bridge construction work on an upper portion of the bridge pier (5), characterized by comprising:

A set anchor or a chemical anchor (A) which is not subject to a lateral force (橫 force) and a negative reaction force (negative reaction force); The upper plate 10 and the lower plate 20 or the lower plate 20 are mounted to adjust the height of the upper and lower plates in accordance with a gradient and a height between the upper structure 3 and the bridge piers. And a first height adjusting bolt (53) mounted through the anchor socket (52).

The first height adjusting bolt 53 includes a fastening part 55 mounted through the anchor socket 52 mounted on the outer side of the upper plate 10 or the lower plate 20; A connecting portion 56 integrally formed at a lower portion of the coupling portion 55; And a support portion 57 extending integrally from the connection portion 56 and supported on the upper structure 3 or the bridge 5.

The upper plate 10 and the lower plate 20 are each formed with a fastening hole H at each corner and the anchor socket 52 can be bolted through the fastening hole H. [

The fastening part 55 is formed with threads around the outer circumferential surface thereof and a screw can be fastened to the first height adjusting nut 51 mounted on the anchor socket 52.

The first height adjusting nut 51 is rotatably inserted into the anchor socket 52 from the outer side to the inner side of the anchor socket 52. The first height adjusting bolt 53 is inserted through the connecting portion 55, The length of the first height adjusting bolt 53 can be adjusted from the anchor socket 52 by adjusting the fastening height.

In addition, the anchor socket 52 may have a predetermined clearance to adjust the length of the anchor socket 52.

The connection portion 56 may be formed in a polygonal shape including a circular shape.

The supporting portion 57 may be formed such that its end is pointed vertically from the connecting portion.

The support portion 57 may be mounted with a nonslip member 60 to prevent it from sliding when it comes into contact with the upper structure 3 or the pier 5.

The non-slidable member 60 may be made of a polyurethane material.

The displacement measuring means 70 is provided at one end corner of each of the upper and lower plate end angles and fixed by bolts. When the upper structure 3 is pulled up to the left or right or up and down, the displacement can be visually measured through the displacement target of the displacement measuring means 70.

The girder 100 is installed on one side of the upper plate 10 and the bridge pier 5 and is mounted in a lateral direction on the bridge pier 5 in a box shape or the like so that a desired number of girders 100 And can be fixedly arranged on the teaching apparatus 1.

In addition, a bridge support supporting plate 90, which is longer than the lower plate 20 when the girder type survey apparatus is installed, is positioned at the lower end of the lower plate 20 to effectively support the weight of the girder 100, The second height adjusting means 110 is provided at both ends of the support supporting plate 90 to provide ease of installation for the operator.

The second height adjusting means 110 includes a second height adjusting nut 111 and a second height adjusting bolt 112. The second height adjusting nut 111 has an upper end rotatable from the outside to the inside, And the length of the second height adjusting bolt 112 can be adjusted by adjusting the fastening height of the second height adjusting bolt 112 fastened through the fastening portion 55.

The calibration device 1 can be attached to the concrete surface corresponding to the lower surface of the lower plate 20 with a hammer drill to bind and fix the set anchor or the chemical anchor A. [

As described above, according to an embodiment of the present invention, a bridge for a bridge is connected to an upper structure of a bridge and a bridge, and a bridge is provided for supporting the bridge, And the anchor socket and the height adjusting bolt are dispersed, the fixed state can be maintained tightly by moving the upper plate, the lower plate, the anchor socket, and the height adjusting bolt. It is possible to effectively absorb repetitive compressive load while improving the stability of the bridge by further strengthening the state of engagement. When the bridge overhead structure is pulled up or down, It is possible to measure (measure) with the naked eye through the displacement target of the displacement measuring means so that a safety accident can be prevented in advance.

Also, height adjustment bolts, which adjust the height of the upper plate or the lower plate through the anchor socket, are combined to easily adjust the horizontal height, thereby simplifying the construction.

The concrete surface of the concrete apparatus to be replaced is excavated with a hammer drill to bind and fix the set anchor or the chemical anchor to resist the dominance of the lateral force and the negative reaction force, , Horizontal load, and the like, and it is possible to easily construct and repair through the height adjustment means, and to minimize the cost associated with the use of large heavy equipment, thus making it possible to construct an economical bridge.

Meanwhile, when a girder type survey apparatus is constructed, a bridge supporting plate formed to be longer than the lower plate is positioned at the lower end of the lower plate to effectively support the weight of the girder, and a second height adjusting means is provided at both ends of the bridge supporting plate It is possible to provide convenience of the worker in construction.

1 is a perspective view showing a calibration apparatus for a bridge according to an embodiment of the present invention.
FIG. 2 is a partially cutaway perspective view showing a calibration apparatus for a bridge according to an embodiment of the present invention. FIG.
3 is a perspective view illustrating a height adjusting bolt applied to a quay apparatus for a bridge according to an embodiment of the present invention.
FIG. 4 is a side view showing a calibration apparatus for a bridge according to an embodiment of the present invention. FIG.
5 is a side view showing a slab (SLAB) type bridging apparatus according to an embodiment of the present invention.
FIG. 6 is a side view showing a girder apparatus for a bridge in the form of a girder according to an embodiment of the present invention.

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

It is to be understood that both the foregoing general description and the following detailed description of the present invention are exemplary and explanatory only and are not restrictive of the invention, It should be understood that various equivalents and modifications are possible.

FIG. 1 is a perspective view of a bridge for a bridge according to a first embodiment of the present invention, FIG. 2 is a partially cutaway perspective view showing a bridge for a bridge according to the first embodiment of the present invention, and FIG. FIG. 6 is a perspective view showing a structure of a height adjusting bolt applied to a bridge for a bridge according to a first embodiment. FIG.

4 is a side view showing a configuration in which a bridge for a bridge according to the first embodiment of the present invention is installed.

Referring to the above drawings, a bridging apparatus for a bridge 1 according to a first embodiment of the present invention connects an upper structure 3 of a bridge to a bridge 5 and detects a displacement and a cyclic axial load (3) can be easily moved up and down or right and left, and the displacement can be visually recognized when the bridge overhead structure (3) is lifted up or down. And a means for measuring (measuring) one end of each end of the plate is provided.

1 to 4, an upper structure 3 on which a road is laid, and an upper structure 3 on which a road is laid, And a pier 5 supporting the lower portion of the pier.

As shown in FIG. 4, the bridge device includes an upper plate 10 installed at the lower end of the upper structure 3 of the bridge, a lower plate 10 corresponding to the lower portion of the upper plate 10, An elastic body 30 positioned between the upper plate 10 and the lower plate 20 to absorb a repeated compressive load and a shear load transmitted from the upper structure 3, And a displacement measuring means 70 for measuring the displacement of the upper structure 3 when the upper structure 3 is pulled up horizontally and horizontally.

Here, straightening means 40, which partially overlap in one direction, are provided on the upper and lower surfaces of the upper plate 10 and the lower plate 20, respectively, which are installed so as to correspond to each other.

The straight advancing means 40 comprises a moving plate 41 fixed to both sides of the lower surface of the upper plate 10 so as to be protruded in one direction and protruding from the upper surface of the lower plate 20, And a guide plate 43 disposed adjacent to the outer surface of the lower plate 20 so as to overlap with the moving plate 41. The lower plate 20 and the lower plate 20 Are installed in the same direction as the installation direction of the upper structure (3) on which the road is to be installed.

The straight advancing means 40 is integrally joined to the upper and lower plates 20 through welding so that the upper structure 3 is supported, The movable displacement due to the stress is absorbed by the elastic body 30 so that the upper structure 3 can be linearly moved in one direction by the linear means 40 so that the stress concentrated on the elastic body 30, .

The elastic body 30 includes an upper plate 10 and a lower plate 20 integrally fixed to the inner groove 31 formed on the upper and lower surfaces by an iron plate 33 and fixed by a fixing bolt 35, And an elastic body 30 for reinforcing the fixed state of the elastic body 30 and elastically receiving shear stress and displacement displacement by embedding the iron core 37 in multiple stages in the elastic body 30, So that the degree of overload of the stress of the elastic body 30 can be improved.

The bridge apparatus according to the first embodiment of the present invention may be installed on the lower plate 20 and the upper plate 10 or only on the lower plate 20 so that the calibration apparatus 1 can be installed on the upper structure The upper plate 10 and the lower plate 20 which are coupled with each other by positioning the elastic body 30 while being fixed to the upper structure 3 and the bridge 5 with a gradient between the upper structure 3 and the bridge 5 And a first height adjusting bolt 53 which adjusts the height according to the height and is mounted through the anchor socket 52.

The upper plate 10 and the lower plate 20 are formed with fastening holes H at respective corners and the anchor socket 52 can be bolted through the fastening holes H .

3, the first height adjusting bolt 50 includes a fastening portion 55, a connecting portion 56, and a supporting portion 57.

First, the fastening part 55 is mounted through the anchor socket 52 mounted on the outer side of the upper plate 10 or the lower plate 20.

The fastening part 55 has a first height adjusting nut 51 which is threaded along the outer circumferential surface in the longitudinal direction and is mounted on the end of the anchor socket 52 bolted to the outside of the fastening hole H The screw can be fastened.

The first height adjusting nut 51 is rotatably inserted into the first height adjusting nut 51 from the outside of the end of the anchor socket 52 to the inside thereof and the first height adjusting bolt The length of the first height adjusting bolt 53 can be adjusted from the anchor socket 52 by adjusting the fastening height of the first height adjusting bolt 53.

That is, the first height adjusting nut 51 is located at an outer side of the end of the anchor socket 52 bolted to the upper plate 10 and the lower end of the lower plate 20 or the lower plate 20, The first height adjusting bolt 53 is rotated from the end of the anchor socket 52 through the first height adjusting bolt 53 when the first height adjusting bolt 53 is fastened through the fastening portion 55, So that the overall height of the coordinate system 1 is adjusted.

In the first embodiment, the connecting portion 56 is integrally formed at the lower portion of the coupling portion 55. [

Here, the connection portion 56 may have a polygonal shape including a circular cross-section.

The supporting part 57 extends integrally from the connecting part and is supported on the upper structure 3 or the bridge 5.

Here, the support portion 57 may be formed such that its end is pointed vertically from the connection portion.

The support portion 57 may be mounted with the anti-skid member 60 to prevent it from sliding when the upper structure 3 or the bridge pier 5 is contacted.

The non-skid member 60 may be formed in a thimble shape fitted to the lower portion of the support portion 57, and the material thereof may be made of a polyurethane-based material.

Accordingly, the support portion 57 is formed to have a sharp-pointed end even when the upper structure 3 or the pier 5 can not form an even horizontal surface, and a non-slip member 60 fitted to the support portion 57 So that it is possible to stably hold the calibration apparatus 1 in a fixed position.

The first height adjusting bolt 53 may have various lengths and may have a gradient between the upper structure 3 and the pier 5 as shown in FIG. The first height adjustment bolt 53 having a length corresponding to the height of the anchor socket 52 mounted on the upper and lower plates of the calibration device 1 Can be mounted. The anchor socket 52 connected to the lower plate 20 is formed to be longer than the length of the first height adjusting bolt 53 so that the bolt can be sufficiently provided with a clearance space to facilitate tightening and loosening of the bolt.

The first height adjusting bolt 53 is coupled vertically downward with the upper plate 10 through the anchor socket 52 and is vertically upwardly coupled with the lower plate 20 through the anchor socket 52. [ So that it can be applied to a concrete mortar fixing method effective for vibration and seismic resistance when the calibration apparatus 1 is installed.

The height adjustment bolt 50 is installed through the upper plate 10 and the anchor socket 52 of the lower plate 20 according to the fixing method of the coordinate system 1 installed in the bridge. However, the present invention is not limited thereto and may be installed only on the lower plate 20 except for the upper plate 10.

That is, when the first height adjusting bolt 53 is mounted to the lower plate 20 of the coordinate measuring apparatus 1 through the anchor socket 52, the first height adjusting bolt 53 is attached to the plate (not shown) The first height adjusting bolt 53 vertically downwardly coupled to the lower plate 20 through the anchor socket 52 is pierced through the piercing hole 53. In this case, And then the concrete or mortar is injected into the grooves and then cured to fix the coordinate device 1 between the upper structure 3 and the piers 5. [

Here, the first height adjusting bolt 51, to which the first height adjusting bolt 53 is fastened, can adjust the fastening height of the first height adjusting bolt 53 through forward and reverse rotation, 3 and the pier 5 and the height of the piercing device 1 according to the height.

The first height adjustment bolt 53 provided on the calibration apparatus 1 is inserted into the first plate 5 from the anchor socket 52 bolted to the respective fastening holes H of the upper plate 10 or the lower plate 20, When the movable structure is displaced in the upper structure 3 due to the temperature change, the stress concentrated on the first height adjusting bolt 53 is transmitted to the anchor socket 52 and the second height adjusting bolt 53, 1 height adjusting nut 51 so that the fixed state between the bridge and the coordinate measuring apparatus 1 can be firmly maintained.

The displacement measuring means 70 is installed at one end corner of the upper and lower plate end angles of the upper plate and the lower plate and the displacement measuring means 70 is mainly composed of a displacement measuring plate 71 and a measuring table 72, A plurality of plates 71 are formed at predetermined intervals from the center side of the upper structure 3 and are fastened and fixed by bolts to the upper plate 10 and have a scale plate formed on the upper and lower sides and horizontally, The measurement table 72 is connected to the displacement measurement plate 71 by bolts at one end of the lower plate 20 so as to overlap with the displacement measurement plate 71. When the upper structure 3 is pulled up, The displacement of the X and Y axes can be measured by pointing to the scale pin of the displacement target.

The displacement measuring means 70 is used to check whether or not the bridge overhead structure 3 is balanced when the bridge overhead structure 3 is pulled up. There is no difference in terms of making the balance at the time of raise, and the functions may be performed in addition to the above functions.

5 is a side view of a slab type bridge for a bridge according to a second embodiment of the present invention. The bridge arrangement of the second embodiment of the present invention has the same basic structure as that of the first embodiment, A set anchor and a chemical anchor (A) are added, resulting in a difference in configuration.

In this embodiment, a set anchor and a chemical anchor A for imparting a resistance force to a lateral force and a negative reaction force which hinders absorption of a force acting in the transverse direction and a repeated compression load on the bridge; .

First, by adjusting the amount of fastening of the first height adjusting bolt 53 through the forward and backward rotation of the first height adjusting nut 51 mounted on the anchor socket 52 to adjust the level of the testing apparatus 1, A first height adjustment bolt 53 vertically installed through the anchor socket 52 is embedded in the upper plate 10 and the lower plate 20 in the bridge structure with the upper structure 3 and then concrete or mortar is poured So that the first height adjusting bolts 53 are integrally embedded and fixed.

Then, the set anchor or the chemical anchor A is excavated to a concrete surface corresponding to the lower surface of the lower plate 20 above the bridge pier 5 with a hammer drill or the like to have a predetermined diameter and depth, So that resistance to the control of the lateral force (negative force) and negative force (negative force) can be given.

Also, even if a bridge reaction force is generated due to buoyancy due to flooding of the river, the anchor socket 52, the first height adjusting bolt 53, and the first height adjusting nut 51 embedded in concrete in the bridge pier 5 It is possible to prevent the upper structure 3 and the bridge pier 5 from being separated from each other with respect to the coordinate system 1.

FIG. 6 is a side view showing a girder type bridge apparatus in the form of a girder according to a third embodiment of the present invention. The bridge apparatus of the third embodiment of the present invention has the same basic structure as that of the first embodiment, As the girder 100 and the bridge support support plate 90 are added, a difference in configuration is caused.

In this embodiment, the girder 100 is arranged to be raised and fixed on the calibration apparatus 1 when constructing a new bridge.

6, the girder 100 of a box shape or the like is placed on the girder 100 in a state in which the upper portion of the bridge 5 is moved to a desired position, (Not shown) is provided between the lower side of the bridge 1 and the calibration device 1 to maintain the height of the girder 100 and one or a plurality of calibration devices 1 And positioned below the pair of upper structures 3 to be connected to the upper part of the bridge pier 5, respectively.

When the displacement is generated in the upper structure 3 due to the temperature change, the stress of the first height adjusting bolt 53 is applied to the anchor socket 52 and the first height adjusting bolt 53, So that the bridge can be dispersed by the adjusting nut 51 to firmly maintain the fixed state between the bridge and the coordinate measuring apparatus 1. The bridge supporting plate 90, which is longer than the lower plate 20, And the second height adjusting means 110 is provided at both ends of the bridge supporting plate 90 to provide ease of installation for the operator.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. It will be understood that various modifications and changes may be made without departing from the scope of the appended claims.

1: compass apparatus 53: first height-adjusting bolt
3: superstructure 54:
5: Pier 55:
10: upper plate 56: extension
20: Lower plate 57: Support
30: elastic body 60: non-slip member
31: Inner groove 70: Displacement measurement means
33: steel plate 71: displacement measuring plate
35: Fixing bolt 72: Measuring stand
37: iron core 80: drilling
40: straight advancing means 90: bridge supporting plate
41: moving plate 100: girder
43: guide plate 110: second height adjusting means
50: first height adjusting means 111: second height adjusting nut
51: first height adjusting nut 112: second height adjusting bolt
52: Anchor socket

Claims (21)

delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete A bridge coaster apparatus (1) installed between an upper structure (3) to which roads are laid and a bridge pier (5) to support a lower portion of the upper structure (3)
A girder (100) supporting a bridge upper plate and having a lower portion at the lower portion thereof;
An upper plate 10 installed at a lower end of the girder 100;
A lower plate 20 corresponding to a lower portion of the upper plate 10 and installed at a pier;
An elastic body (30) positioned between the upper plate (10) and the lower plate (20) and absorbing repeated compression load and shear load transmitted from the upper structure;
The upper plate 10 and the lower plate 20 or the lower plate 20 may be mounted on the upper plate 3 to adjust the height of the upper plate and the lower plate depending on a gradient and a height between the upper structure 3 and the piers. A first height adjusting means (50) which adjusts and is mounted through the anchor socket (52); And
And a bridge support support plate (90) coupled to the lower plate (20)
The bridge support support plate 90 is longer than the lower plate 20 and is located at the lower end. The bridge support support plate 90 is provided at both ends with a second height adjustment unit 110, a second height adjustment nut 111, (112) for determining the position of the bridge. delete 19. The method of claim 18,
Further comprising a set anchor or chemical anchor (A) for preventing the calibration apparatus (1) to be replaced from being subjected to the control of a lateral force and a negative reaction force. 21. The method of claim 20,
The set anchor or the chemical anchor (A)
Wherein the lower surface of the lower plate (20) on the bridge pier (5) is excavated on a concrete surface corresponding to a lower surface of the lower plate (20) to bind and fix the set anchor or the chemical anchor (A).

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