KR101835758B1 - Changing apparatus and method for girder of railway plate girder bridge - Google Patents

Abstract

The present invention relates to a method of improving plate-like bridges for railroad bridges, comprising: a replacement part including at least one bogie part, the replacement part being movable on a rail and having a crane capable of raising and lowering a girder in a replacement space; A second loading section disposed on the other side of the replacement section and for loading the removal girder; and a second loading section disposed on the upper side of the first loading section, the replacement space, and the upper surface of the second loading section, And a conveying section for conveying the removed girder.

Description

TECHNICAL FIELD [0001] The present invention relates to a girder replacement apparatus for a railway plate girder bridge,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of improving a plate-type bridge for a railway bridge, and more particularly, to a bridge plate bridge type girder bridge replacing apparatus and a construction method thereof, which can efficiently replace a plate-type bridge girder widely adopted as a railway bridge.

In general, many of the Korean steel bridge bridge railroad bridge has been in construction for many years. Such a conventional railway bridge adopts a plate girder such as a lower plate girder, for example, and the plate girder needs a replacement because it has a large noise and a small supportable load.

Conventionally, a railroad bridge is provided with a spacing device on a bridge at intervals, and a square cross-sectional beam is provided on the spacing device. This beam is usually referred to as a BU beam. The beam includes a pair of vertical members arranged at left and right intervals, a horizontal member connecting the upper and lower ends of the two vertical members, and an X-shaped member disposed inside the horizontal member, connecting the upper and lower ends of the two vertical members And the reinforcing members supporting it. A treadmill is laid over this beam, and a rail is laid on it. The sleepers are mainly made of wood or cement.

Most of the domestic railway bridges having the above-described configuration have been installed for a long period of time, and therefore, the necessity of replacement or new installation is required. In addition, since it is a martial arts, there is a problem that noise is generated severely.

In general bridges, the dead load due to the load of the bridge itself is about 70% and the live load due to the traffic of the vehicle is about 30%. On the other hand, in the railroad bridge, the dead load due to the load of the railroad bridge itself is about 40% 60%. In other words, the railroad bridge has a relatively large portion of live load compared to a general bridge, and accordingly, when a train passes through a railroad bridge, many vibrations and noises are generated. However, in the conventional railway bridge, there was no consideration to reduce the above noise.

In general bridges, it is not a big problem because the vehicles can be diverted to other places even if they control the traffic for the construction of the bridges. However, in railway bridges, when a train is controlled in one of the railroad bridges, There is a problem that the whole route is shut down because it is impossible.

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a view of a prior art railway bridge.

On the pier 10, a space unit 20 is provided at intervals, and a beam 31 in the shape of a rectangular cross section is provided on the space unit 20. The beam 31 consists of a plurality of intersecting members. The sleepers 33 are mainly made of wood or cement.

Recently, the upper structure of the railway bridge is made of steel material and / or concrete material having a slab, as in the case of the upper structure of a general bridge, for reasons such as quick installation, simplicity of installation, noise prevention, and improvement of durability. In order to replace these railway bridges from the lower part of the pier to the railroad bridge, a large-capacity crane with a height greater than twice the height of the piers is required. Especially, when the length of the superstructure is more than 10m, it needs to be lifted by using a special crane with a large capacity. It is not only expensive but also difficult to use because of its limited equipment. In addition, if the upper structure of a railway bridge installed in a mountainous area is to be replaced as in the case of the domestic ones such as Yeongdong Line and Taebaek Line, there is an uneconomical problem because additional work such as cleaning a new road to move a special crane to the site is required.

In some cases, in order to replace the upper structure of the railway bridge, a facility is installed, and a method of constructing the upper structure on the upper structure is attempted. However, there is a problem that the time and cost are extra to manufacture the temporary structure.

Korean Patent Registration No. 10-0692952 discloses a railway crane and a method for replacing an upper structure of a railroad bridge using the same.

And three frames and cranes moving along the railway rail by the wheels. The three frames include a replacement girder mounting part connected to a locomotive from the front, a girder lifting part, and a new girder mounting part. The crane mounts and mounts the replacement girder while reciprocating the new girder mounting part and the replacement girder mounting part, So as to replace it.

There is a merit that the work is simplified compared to the past method, but there is a problem that the rail is excessively long for the movement of the crane and the constant load is applied to the structure because the load of the downward must be directly supported by the crane. In addition, each of the crane elements must move independently, which is difficult to control and thus the reliability of the operation is not high.

SUMMARY OF THE INVENTION The present invention has been devised to solve the problems described above, and it is an object of the present invention to provide a girder replacement device of a railway plate type bridge capable of quickly and accurately performing replacement of a girder, The purpose.

The present invention relates to an elevator (1000) comprising a replacement part (1000) having a crane part (1100) movable on a rail and capable of elevating and lowering the girder in a replacement space, a first loading part 2000), a second loading part (3000) disposed on the other side of the replacement part and loading a demolition girder, and a replacement girder and a demolition girder along the transferring rail between the upper surface of the first loading part, the upper surface of the replacement space and the second loading part And a conveying section (4000) for conveying the girder of the railway girder bridge. Therefore, the conveying and conveying of the girder can be performed reliably and the load of the equipment is minimized.

It is preferable that the replacement portion includes a frame portion 1120 having an open bottom and an upper portion in an arch shape and supporting the crane portion on the ceiling side.

The frame portion may have a sidewall that is recessed outwardly and form a flow space allowing flow to the girder. Therefore, fine adjustment of the position is allowed and damage to the frame or the girder can be prevented.

Further, the frame part may be formed in a step formed at the bottom part and formed with a replacement rail part 1400 extending from the conveying rail of the first loading part and the second loading part. Therefore, since the continuous transfer line is formed, it is possible to move the transfer part stably.

The first loading unit, the replacing unit, and the second loading unit may include a bogie connecting unit 1101 that can be detachably connected to each other, a loading bridge unit 2300 disposed above the bogie connecting unit and extending the feeding rail on the connecting unit, And a bridge unit 1300 may be provided.

The first loading unit, the replacing unit, and the second loading unit may have at least one support portion formed at the bottom portion and fixing the position by supporting the rail side. Therefore, the safety and reliability of the construction process are improved.

The conveying unit includes a conveying wheel 4310 guided and moved by the conveying rail and the replacement rail, a conveying driving unit 4120 driving the conveying wheel by control power, Or a buffer part 4200 which is buffered when the stopper part is formed on the second loading part.

In addition, the replacement portion may include a replacement carriage coupled to both sides of the frame portion and having a transfer rail. Thus, it is possible to move and store independently.

According to another aspect of the present invention, there is provided a construction method for replacing a girder by using a girder replacement device of a railway plate type bridge, the method comprising: a first step of arranging the replacement part on the side of the replacement space and providing a replacement girder on the first mounting part; A third step in which the demolition girder is transported from the second loading section to the demolition transfer section and the demolition girder is placed on the demolition transfer section; a fourth step in which the demolition girder is transported to the second loading section; And a sixth step in which the replacement girder is transferred to the replacement part by the replacement transfer part and the sixth step in which the crane supports the replacement girder and the replacement transfer part is transferred to the first loading part.

In addition, the crane may further include a seventh step of lowering the replacement girder, supporting the load in the process of installing the replacement girder in the bridge, and adjusting the position of the bridge in the forward, backward, leftward, and rightward directions.

According to the present invention, it is possible to ensure structural reliability and durability since the load of the girder is accurately supported while being horizontally conveyed by the conveyance unit and the crane is required to bear the load only when the girder ascends and descends.

In addition, since the first loading unit, the replacing unit, and the second loading unit are removable from each other, convenience in storage and transportation is maximized and economic efficiency is improved, and a conveying unit is provided between the first loading unit, It is possible to automate the horizontal and vertical movements and to carry out safe plate-type bridge replacement.

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a view of a prior art railway bridge.
2 is a schematic view of a girder replacing apparatus of a railway plate type bridge according to the present invention.
3 is a front view for explaining a loading unit in a girder replacing apparatus of a railway plate type bridge of the present invention.
4 is a front view for explaining a replacement part in a railway girder bridge girder replacement device of the present invention.
5 is a side cross-sectional view of the replacement part of Fig.
6A to 6G are schematic views for explaining a construction method in which a girder is replaced by a girder replacement device of a railway plate type bridge of the present invention.
7 is a structural view for explaining electric and hydraulic systems in a girder replacement device of a railway plate type bridge of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the invention.

It is to be understood, however, that the embodiments described below are only for explanation of the embodiments of the present invention so that those skilled in the art can easily carry out the invention, It does not mean anything.

In the following description, when a part is referred to as being 'connected' to another part, it includes not only a direct connection but also a case where another part or device is connected in between. In addition, when a part is referred to as including an element, it is to be understood that the element may include other elements, not the exclusion of any other element, unless specifically stated otherwise.

The present invention basically comprises a replacement part including at least one bogie part and having a crane capable of moving up and down the girder in a replacement space which is movable on a rail and a crane part which is disposed on one side of the replacement part and which carries a replacement girder And a transfer unit for transferring the replacement girder and the demolition girder between the upper surface of the first loading unit, the upper surface of the replacement space, and the upper surface of the second loading unit, and a second loading unit disposed on the other side of the replacement unit, The present invention provides a girder replacement device for a railway plate girder bridge.

In the description of the present invention, a replacement apparatus for replacing a girder installed in a railway bridge is mainly described, but various types of railway bridges may be used for replacing a predetermined upper structure for forming a rail on the ground.

2 is a schematic view of a girder replacing apparatus of a railway plate type bridge according to the present invention.

Let the lengthwise direction of the rail be defined as both sides based on the illustrated state.

As shown in the drawing, the rail 200 is arranged in the longitudinal direction on the pier and the girder replacement device of the railway plate type can have a plurality of wheels so that the girder 100 can be moved to a space requiring replacement of the girder 100 have. The wheels may be formed in the first loading part 2000, the replacing part 1000 and the second loading part 3000, respectively, and the first loading part 2000, the replacing part 1000 and the second loading part 3000 3000 may be provided with a power providing portion for providing power to the wheel and may be towed by an additional driving portion as will be described later.

A position where the girder 100 is to be removed and installed is defined as a replacement space 300. A replacement part 1000 is disposed in the replacement space 300 and a first loading part 2000 is installed at one side and the other side, And the second loading unit 3000 fix the position on the rail and form a transferring rail for transferring the transferring unit 4000.

The replacement part 1000 is arranged to form the replacement space 300 on the lower side of the first loading part 2000. The crane part 1100 is disposed on the side of the first loading part 2000, So as to perform a function of moving up and down. The girder which is stacked by the first stacking unit 2000 and is transported to the replacement space 300 by the transporting unit 4000 is removed from the pier provided by the replacement unit 1000 by the replacement girder 110 The girder to be stacked on the second loading unit 3000 by the transfer unit 4000 is defined as the demolition girder 120. [

A predetermined frame part is provided in the replacement part 1000, and a space is formed in the lower part. The girder is raised and lowered in the space, and the removal and replacement work is performed. A crane portion 1100 having a plurality of hoists 1110 is installed in the frame portion to move the replacement girder 110 and the removed girder 120 up and down. The hoists 1110 of the crane unit 1100 can fix the position of the girder in the longitudinal direction to some extent and can support the load of the girder only when necessary.

The transfer unit 4000 transfers the replacement girder 110 from the first loading unit 2000 to the replacement space 300 and removably removes the removed girder 120 from the replacement space 300 to the second loading unit 3000 And performs the function of carrying and loading. The conveyance unit 4000 has a function of loading both sides of the loading unit and a function of transferring the replacement girder 110 and the demolition girder 120.

In the prior art, the hoist is moved to both sides and simultaneously carries the function of moving the girder and moving up and down. Such a conventional technique has two problems. One of them can cover the space of the normal rail on both sides as well as the replacement space. In this case, the entire length of the frame of the replacement part must be formed to be excessively long and the load must be supported at the upper part It has a bulky problem. This leads not only to deteriorating economic efficiency, but also to the difficulty of moving long distances. Second, since the girder is considerably heavy, there is a high possibility that deformation occurs due to shear force due to the continuous load acting on the frame downward, which leads to a problem of structural reliability. In addition, since the hoist is required to support the girder by the wire, the load applied to the frame may be increased in an irregular direction if undesired forward, backward, leftward and rightward flows occur due to simultaneous horizontal and vertical movements.

In order to solve this problem, the horizontal transfer of the girders is performed by the transfer unit 4000 that can be moved through the replacement unit 1000, and the up and down movement of the girder in the replacement space 300 is performed by the crane unit 1100 To maximize operational reliability and durability. In particular, since the load is supported on the upper surface of the first loading part 2000 and the second loading part 3000, the structural stability is greatly improved as compared with a method of supporting the load downward. In addition, since the first loading unit 2000, the replacing unit 1000, and the second loading unit 3000 can be separated and used only when necessary, they are advantageously remarkably convenient for transportation, storage and maintenance As shown in FIG.

A detailed description of the process of replacing these girders will be given later.

3 is a front view for explaining a loading unit in a girder replacing apparatus of a railway plate type bridge of the present invention.

The first stacking unit 2000 and the second stacking unit 3000 may be replaced by a replacement unit 1000. The first stacking unit 2000 and the second stacking unit 3000 may be replaced with each other, The second loading unit 3000 will not be described in detail.

The first loading part 2000 is provided with a space through which the conveying part 4000 is transferred and the replacement girder 110 can be loaded on the top surface of the first loading part 2000. On the bottom part of the first loading part 2000, Not shown) may be combined.

A transferring rail (not shown) for transferring the transferring unit 4000 may be disposed on the upper side of the first loading unit 2000 and guide the transferring unit 4000 to be moved in the longitudinal direction.

Since the first stacking unit 2000 is detachably attached to the replacement unit 1000, a bogie connection unit 2100 is formed on the other side and / or the first side, and a bogie connection unit 1101 of FIG. 4). Conventional railway vehicle connecting means can be applied to such a bogie connecting portion.

In the present invention, since the transfer unit 4000 must be reciprocally movable between the first loading unit 2000, the replacing unit 1000, and the second loading unit 3000, a predetermined transferring rail must be connected. For this purpose, a loading bridge portion 2300 for connecting with the replacing portion 1000 is formed on the other side of the first loading portion 2000 and connected to a replacing bridge portion (1300 of FIG. 4) formed in the replacing portion 1000 have. Therefore, the loading bridge portion 2300 is provided on the upper side of the bogie connecting portion 2100 and has an upper surface that coincides with a predetermined surface of the upper plate of the first loading portion 2000, May be formed to have a length equal to or longer than the bogie connecting portion 1101.

Considering the connection process between the loading part and the replacing part, there may be inconvenience when the loading bridge part and the replacing bridge part are normally arranged to cover the upper side of the bogie connecting part. Therefore, So that it can be rotated in the vertical direction. Therefore, in the moving or connecting process of the girder replacing device of the railway plate bridge, the bridge part is pivoted to the upper plate side so as to be disposed in a collapsed state, and can be rotated only in the process of replacing the girder, so that the conveyance rail can be formed in a mutually facing state.

On the other hand, when the entire replacement apparatus is moved to the replacement space 300 side, there is a need to fix the entire structure on the rail 200. However, in this case, since the structure is more complicated and the weight may increase, the support portion 2500 supporting the ground on the rail or the rail side may be disposed on the bottom portion of the top plate As shown in Fig. The support portion 2500 may be formed in a cylinder shape that is operated by hydraulic pressure and drawn out downward, and a groove corresponding to the shape of the rail may be formed on the lower end side.

As described above, the transfer unit 4000 is disposed on the upper surface of the upper plate of the first loading unit 2000 so as to be movable in the left and right direction. The first loading part 2000 supports the replacement girder 110 in a state of being mounted on the upper surface of the transfer part 4000. The transfer part 4000 is installed in the first loading part 2000, It is preferable to provide a separate power source in order to be able to reciprocate between the second loading part 3000 and the second loading part 3000. [ Accordingly, the transfer unit 4000 may include a plurality of transfer wheels 4310 so as to be movable on the transfer rail, and a transfer drive unit 4120 capable of driving the transfer wheel 4310. In this case, since the transfer unit 4000 must be constantly moved, it is difficult to connect the loading unit and the replacing unit to the hydraulic power system, and therefore, the transfer driving unit 4120 is preferably composed of a motor that receives the control power and generates rotational power Do.

In addition, since the conveyance unit 4000 is to be conveyed in a state in which the girder of the weight chain is seated, the load and the inertia are large in the course of the movement. A stopper portion 2200 is provided for fixing the loading portion to an accurate position and the stopper portion 2200 contacts the end portion of the transfer frame 4120 of the transfer portion 4000 to limit excessive movement. The shock absorber 4200 may be disposed on both sides of the transfer frame 4120. The shock absorber 4200 may be disposed on both sides of the transfer frame 4120. [ . The buffer may have a hydraulic resistance structure and / or an elastic body.

4 is a front view for explaining a replacement part in a railway girder bridge girder replacement device of the present invention.

The replacement unit 1000 includes a crane unit 1100 directed toward the replacement space 300 and a frame unit 1120 supporting the crane unit 1100 from above and forming a space for moving the girder 100 inward and downward, .

(Not shown) having wheels are coupled to both sides of the frame part 1120 to be movable on the rail 200. [ Such a replacement carriage includes a top plate and a wheel like the loading section, and on the upper surface thereof, a conveying rail is formed so that the girder can be conveyed by the conveying section 4000.

In addition, a bogie connecting portion 1101 connected to the bogie connecting portion 2100 formed at the loading portion on both sides is provided at both ends, and the bogie connecting portion 1101 is detachable from each other. At this time, a replacement bridge portion 1300 connected to the loading bridge portion 2300 for connection of the feeding rail is provided at both ends, and the replacement bridge portion 1300 is provided in consideration of spatial efficiency in terms of detachment, It can be combined to be vertically rotatable as described above.

The frame part 1120 is substantially arcuate on the side and supports the crane part 1100 on the ceiling side and the crane part 1100 can be composed of a plurality of hoists 1110. [ These hoists 1110 can be moved to both sides of the length of the frame part 1120 for fine adjustment of the position in the process of replacing the girders. Each of the hoists 1110 is movable through a guide rail (not shown) formed in the frame portion 1120, and can be configured to include a winding drum, a wire, and a hook. Needless to say, such a hoist 1110 can be applied to a known configuration.

On the other hand, the controller unit 1200 can be disposed on either side of the frame unit 1120. The operator can visually operate the girder through the controller unit 1200 while checking the movement of the girder. The operation of the controller unit 1200 will be described later.

The replacement unit 1000 needs to be fixed on the rail 200 on the upper side of the replacement space 300. For this purpose, the load on the ground is supported by the bogie on both sides of the frame unit 1120, The supporting part 1500 can be operated in such a manner that the supporting part 1500 is pulled downward. In this regard, a description overlapping with the supporting portion of the loading portion is omitted.

5 is a side cross-sectional view of the replacement part of Fig.

As described above, the frame portion 1120 supports the hoists 1110 substantially at the ceiling side, and may be formed in an arcuate shape in order to distribute the load. The side hoists 1110 are preferably arranged symmetrically along the centerline on both sides for accurate support of the load.

The frame part 1120 has a space in which the girder can be raised and lowered, and a conveying rail to which the conveying part 4000 can be conveyed is extended. Specifically, the side wall of the frame part 1120 forms a fluid space 1123 as an outwardly depressed shape, and the transfer part 4000 is transferred to the fluid space 1123, and the flow of the girder to some extent Can be accepted. This flow space prevents an impact of the frame portion 1120 and the girder to prevent damage, and provides a tolerance of the flow when the crane portion 1100 positions the girder back and forth and / or right and left.

A step is formed at the bottom of the flow space 1123 and a replacement rail 1400 is formed at the side of the step 1121 to guide the conveyance of the conveyance unit 4000. It should be noted that since the frame portion 1120 is formed in the lower opened state, the replacement rail portion 1400 supports only the front and rear sides where the transfer wheel 4310 is disposed.

The frame part 1120 is formed in a state in which the bottom part is opened, so that work can be performed at a site where a girder of a railway bridge is disposed. A detailed description related to the construction process will be described later.

6A to 6G are schematic views for explaining a construction method in which a girder is replaced by a girder replacement device of a railway plate type bridge of the present invention.

The conveyance unit disposed on one side of the replacement unit 1000 is loaded with a new girder and the conveyance unit disposed on the other side is conveyed with the removed girder from the plate-shaped bridge, so that the one conveyance unit is replaced with the replacement conveyance unit 4000a, And the conveying section of the other side is defined as the demolition conveyance section 4000b. However, this arrangement may be reversed and an additional first stacking part 2000 or a second stacking part 3000 may be disposed on both side stacking parts.

FIG. 6A shows a state in which the replacement unit 1000 is prepared for replacement of the girder in the replacement space 300. At this time, the first transfer unit 2000 is provided with the replacement transfer unit 4000a with the new replacement girder 110 mounted thereon, and the crane unit 1100 is mounted on the demolished girder 120 120).

When the crane unit 1100 is lifted up to a predetermined height inside the frame unit 1120, the demolition conveyance unit 4000b moves from the second loading unit 3000 along the conveyance rail to the frame unit 1120 of the replacement unit 1000, And is located at the replacement rail part 1400 inside.

6B shows a state where the demolition girder 120 is seated on the demolition conveyance part 4000b and the crane part 1100 releases the lifting state of the demolition girder 120 so that the demolition conveyance part 4000b can support the load do.

Then, as shown in FIG. 6C, the demolition transfer unit 4000b is transferred again to the second loading unit 3000 to take the demolished girder 120 out.

6D, the replacement transfer unit 4000a transfers the replacement girder 110 to the replacement unit 1000, as shown in FIG. 6D. In this case, You can transport along the rails. 6E, when the replacement girder 110 is transported to the upper side of the replacement space 300 at an accurate position, when the hoist of the crane unit 1100 supports the load and lifts it up to a predetermined height, the replacement transfer unit 4000a And then conveyed to the first stacking unit 2000 again.

6F shows a process of installing a new replacement girder 110 in a plate-shaped bridge replacement space 300 where the wires of the hoist 1110 are extended and disassembled. In this installation, the crane 1100 is installed on the replacement girder 110, Can be positioned at the correct location to fine-tune the position on both sides to support the load during construction. In addition, it is needless to say that the crane unit 1100 may adjust its position in the forward and backward directions as the case may be.

When the installation of the replacement girder 110 is completed, the hoist 1110 winds up the wire and is prepared in such a state that the girder replacement apparatus of the railway plate type bridge can finally be moved as shown in FIG. 6g.

In other words, the method for replacing a girder according to the present invention includes the steps of arranging a replacement part on the side of a replacement space and providing a replacement girder to a first loading part, raising a removal girder by a crane part, A step in which the demolition girder is transferred to the demolition transfer part and the demolition girder is placed on the demolition transfer part; a step in which the demolition girder is transferred to the second loading part; a step in which the replacement girder is transferred from the first loading part to the replacement part by the replacement transfer part; And the step of supporting the replacement girder and conveying the replacement transfer portion to the first loading portion.

The replacement transfer part 4000a transfers the replacement girder 110 between the first loading part 2000 and the replacement part 1000 and the removal transfer part 4000b transfers the replacement part 1000 and the second loading part 3000, The conveying unit 4000 is constituted by two parts, that is, the replacement transfer unit 4000a and the demarcation transfer unit 4000b. In the present invention, Is most preferable.

7 is a structural view for explaining electric and hydraulic systems in a girder replacement device of a railway plate type bridge of the present invention.

The present invention basically comprises a first loading part 2000, a replacing part 1000 and a second loading part 3000 connected to each other, The operation part 5100 and the power generation part 5200 may be additionally combined in an actual use state in order to move the entire bogie and generate power.

The operation unit 5100 includes a power source and controls the movement of the bogies that are connected by the bogie connection unit as a whole, and the power generation unit 5200 performs a function of supplying power sources to the drive system and the controller unit 1200 .

The controller unit 1200 is disposed on the replacement unit 1000 side as described above so that the operator can visually confirm the construction state to perform the operation. to be.

The controller unit 1200 may include a crane control unit 1210 that can control the expansion and contraction of each hoist 1110 disposed in the crane unit 1100. The crane control unit 1210 elevates the girder 100 at a predetermined seating position so that the girder 100 can be seated on the conveyance unit 4000 or can be released from the conveyance unit 4000, It can be lowered to the installation position or can be moved up and down from the installation position. In addition, it is of course possible to move each of the hoists 1110 in the longitudinal direction of the replacement part 1000 to adjust the exact position.

The conveying control unit 1220 outputs a control signal that the conveying unit 4000 can be conveyed along the conveying rail so that the conveying unit 4000 is accurately conveyed from the second loading unit 3000 to the replacing unit 1000, The first girder 120 is transported from the first loading unit 2000 to the replacement unit 1000 while the replacement girder 110 is seated and the replacement girder 110 is transported from the first loading unit 2000 to the crane unit 1100, It is possible to provide the feed power to the both sides and to provide a stop signal to the predetermined stop position.

The support control unit 1230 also provides power to the first loading unit 2000, the second loading unit 3000, and / or the support unit disposed in the replacement unit 1000, thereby accurately supporting the load in the installation state, To be fixed.

Since the support portion and the crane portion 1100 support a relatively large load, it is preferable that the support portion and the crane portion 1100 are controlled through hydraulic power. Accordingly, the working oil stored in the hydraulic tank 6100 can be supplied to each of the driving units via the hydraulic line 6001 by the hydraulic pump 6200, and the crane control unit 1210 and the support control unit 1230 can control the hydraulic pressure It is possible to transmit the control signal to the pump (not shown) on the pump 6200 and the hydraulic line 6001.

In addition, since the transfer control unit 1220 must perform continuous transfer in a state of being separated from the loading unit and the replacing unit as described above, it is preferable to control the transfer through the power line 5001, May be composed of a motor.

According to the present invention, it is possible to guarantee the structural reliability and durability because the load is only horizontally conveyed by the conveying part while the crane accurately supports the load of the girder and the load is applied only when the crane lifts the girder. There are advantages to be able to.

In addition, since the first loading unit, the replacing unit, and the second loading unit are mutually removable, there is an advantage that convenience in storage and transportation is maximized and economic efficiency is improved.

Further, since the conveying rails for precise conveyance of the conveying portion can be connected to each other between the first loading portion, the replacing portion and the second loading portion, it is possible to automate the conveying in the horizontal and vertical directions, .

In the foregoing, the present invention has been described in detail based on the embodiments and the accompanying drawings. However, the scope of the present invention is not limited by the above embodiments and drawings, and the scope of the present invention will be limited only by the content of the following claims.

100 ... girder 110 ... replacement girder
120 ... demolition girder 200 ... rail
300 ... Replacement space 1000 ... Replacement unit
1101 ... Balance connection part 1100 ... Crane part
1110 ... hoist 1111 ... wire
1120 ... frame portion 1121 ... stepped portion
1122 ... ceiling 1123 ... fluid space
1200 ... controller unit 1210 ... crane control unit
1220 ... transfer control unit 1230 ... support control unit
1300 ... Replacement bridge part 1400 ... Replacement part
1500, 2500 ... support part 2000 ... first mounting part
2100 ... Bottom connecting portion 2200 ... Stopper portion
2300 ... stacking bridge part 3000 ... second stacking part
4000 ... transfer unit 4100 ... transfer frame
4120 ... transfer drive part 4200 ... buffer
4310 ... feed wheel 5001 ... power line
5100 ... driving section 5200 ... power generation section
6001 ... hydraulic line 6100 ... hydraulic tank
6200 ... hydraulic pump

Claims (10)

A replacement part (1000) having a crane part (1100) which is movable on a rail and has a replacement bridge part on both sides and can raise and lower the girder in a replacement space inside a frame part with its lower part opened;
A first loading part 2000 having a loading bridge part connected to a replacement bridge part at one side of the replacement part and connected to the replacement bridge part and loading the replacement girder;
A second loading part 3000 connected to the other side of the replacement part by a bogie connecting part and loading a demolition girder; And
And at least one transfer part (4000) for transferring the replacement girder and the demolition girder along the transfer rail between the upper surface of the first loading part, the replacement space and the upper surface of the second loading part,
Wherein,
A flow space 1123 in which the frame portion can be horizontally conveyed and the frame portion is depressed outward from the side wall so as to allow the flow of the girder in the lateral position of the crane portion and a step portion 1121 formed in the open bottom portion of the flow space And a replacement rail part (1400) extending to the conveying rail to guide the horizontal conveyance of the conveying part.
The method according to claim 1,
The frame unit includes:
Wherein the hoist is disposed symmetrically on both sides of the hoist, and the hoist is supported on the ceiling side.
3. The method of claim 2,
Wherein the replacement bridge portion and the loading bridge portion comprise:
Wherein the girder bridge is disposed on the upper side of the bridge connection part and is longer than the bridge connection part on the opposite side and can be pivoted up and down on the end side so as to be connected only during the replacement of the girder.
delete The method according to claim 1,
The first loading section, the replacing section,
And at least one support portion formed at the bottom portion for supporting the rail side and fixing the position thereof.
6. The method of claim 5,
The support portion
And a groove corresponding to the shape of the rail is formed on the lower end side of the plate-shaped bridge girder replacing device.
The method according to claim 1,
The transfer unit
A conveyance driving section 4120 for driving the conveyance wheel by control power, a conveyance driving section 4120 for conveying the conveyance of the first and second stacking portions 4110, And a cushioning portion (4200) that is buffered when the stopper portion is formed in contact with the stopper portion.
The method according to claim 1,
Wherein,
And a replacement carriage coupled to both sides of the frame portion and having conveying rails.
A construction method for replacing a girder by using a girder replacement device of the railway plate type bridge of claim 1,
A first step of arranging the replacement part on the side of the replacement space and providing a replacement girder on the first mounting part;
A second step of raising the demolition girder by the crane portion;
A third step in which the demolition conveying part is transferred from the second loading part to the replacement part and the demolition girder is seated on the demolition conveying part;
A fourth step in which the demolition girder is transported to the second loading section;
A fifth step in which the replacement girder is transferred from the first loading section to the replacement section by the replacement transfer section; And
And a sixth step in which the crane supports the replacement girder and the replacement transfer section is transferred to the first loading section.
10. The method of claim 9,
After the sixth step,
And a seventh step of lowering the replacement girder of the crane and supporting the load in the process of installing the replacement girder in the bridge, and adjusting the position of the bridge in the front, rear, left and right directions.

Images