KR20150130098A - Launching apparatus for constructing rail through bridge, and construction method using the same - Google Patents

Abstract

Provided are a launching apparatus for constructing a railway through a bridge, and a construction method of a railway through the bridge using the same. An up/down hydraulic cylinder places a ballasted track through the bridge on a pier. The launching apparatus for the bridge moves forwards and backwards from a bridge manufacturing place to successively and simply launch one or more ballasted track through the bridge. As such, the present invention is useful for the construction of a small bridge having a small amount of spans or a middle bridge because a temporary bent or a large beam launcher is not required.

Description

Technical Field [0001] The present invention relates to a launching apparatus for a railway bridge construction, and a railway bridge construction method using the railway bridge construction apparatus. [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lower railway bridge construction, and more particularly, to a lower railway bridge construction, in which an up-down hydraulic cylinder is installed on alternate and pier angles for construction of a lower railway bridge, The present invention relates to a launching equipment for a railway bridge construction and a railway bridge construction method using the same.

Generally, a bridge is a structure that is installed across an elevated road or a river that is installed on a road, and the bridge is largely composed of a pier or alternation, a girder installed on the bridge, and a slab installed on the girder.

Here, the girders are a plurality of beam members arranged on the piers at regular intervals. In the case of a conventional bridge construction method, a plurality of bridge piers or alternations are established, and a plurality of girders are mounted on the bridge piers.

In this way, a plurality of girders are mounted on a bridge pier, and a slab is installed by placing slab concrete on the upper part of the girder.

In a typical girder bridge construction method, a bridge bridge is constructed by a construction method in the field, and a precast pre-girder is mounted on the site.

At this time, a girder installation work using a beam launcher is introduced so that a bridge construction work can be completed safely and efficiently without heavy equipment such as a crane in a mountainous area. That is, the PSC girder can be safely installed by mounting the girder by using the beam launcher, and the road bridge can be constructed without heavy equipment conduction such as a crane and a fall of the girder. These beam launchers can be said to be portable equipment that lifts and hides the PSC girder in the longitudinal and transverse directions to the upper part of the pier.

These beam launchers exhibit excellent installation efficiency in mountainous areas, valley transverses, and river crossings where it is difficult to hoist by a crane due to the high bridge piers, or to stop the transportation of the PSC girder under the bridge pier. In particular, mountainous areas are evaluated as suitable for many domestic road construction sites.

On the other hand, there are various kinds of railroad bridges depending on the structure type, the driving route, and the track structure. The basic types of bridge structure are girder bridge, arch bridge and suspension bridge, but it can be classified into girder bridges, truss bridges, arch bridges, ramen bridges, suspension bridges, and cable car bridges depending on the material used and the type of the upper bridges.

At this time, there are three kinds of classification by the route, upper route bridge, lower route bridge, and middle route bridge. Here, the overhead bridge is a structure in which a bed set supporting the orbit is disposed on the upper part of the girder, and generally has a basic structure of a railway bridge. The hanging bridge is adopted when there is no space under the girder in the structure in which the supporter supporting the orbit is arranged at the lower part of the girder. The middle bridge is located between the upper bridge and the lower bridge, and is adopted as the space of the space under the girder and the installation relation before and after.

In these railway bridges, the ballast track is a road surface with gravel embedded in the rail and the sleepers supporting it. Non-Ballast Track, on the other hand, refers to a gravelless road. In particular, most of the railway bridges built in the past have been installed on the martial arts, and railway bridges, such as the martial bridges, receive large dynamic loads repeatedly as trains are operated.

As a result, the sleeper installed on the mattress absorbs the dynamic load of the train by repeated load, and the damage is caused by the contact surface of the sleeper and the rail or the contact surface between the girder and the sleeper. When such damage is intensified, The noise is generated severely. Due to this, the railway bridge is subject to severe fatigue and damage due to the heavy impact load of the train.

On the other hand, the hanging bridge is a bridge type according to the position of the slab. In other words, a hanging bridge refers to a bridge in which a slab (road surface) is positioned below a longitudinal girder. A U-type channel bridge (UCB), which has been recently applied to a bridging bridge system, has been used in the construction of a light rail, and will be described in detail with reference to FIGS. 1A to 1E.

1A is a cross-sectional view of a conventional hanging bridge and a PSC girder bridge, FIG. 1B is a construction photograph using a hypothetical system of a channel bridge (UCB) according to a conventional technique, FIG. 1C is a cross- Fig. 1E is a perspective view of the U-shaped precast segment for downhole shown in Fig. 1D. Fig.

1A is a cross-sectional view of a cross section of a downward channel bridge 10 (UCB) and a PSC girder bridge 20. The channel bridge 10 is lower in shape than the PSC girder bridge 20, , And the workability and construction cost can be reduced by reducing the amount of excavation of the slab connection section.

 As a conventional channel bridge 10 construction method, a U-shaped segment for a channel bridge can be installed as a full-staging method. In such a case, a system such as a trampoline must be installed. 1b, a channel bridge 10, which is a U-shaped segment, is installed in the launching system 30 in the bridge proceeding direction at the upper portion of the bridge, And a method of constructing using this method is introduced.

However, such a launching system operates the channel bridge 10, which is a U-shaped segment for the channel bridge, by repeating the operations of lifting the bridge bridge 10 to the bridge bridge and the upper portion of the bridge, and connecting them to each other in the longitudinal direction. If there is a problem in the door 30, the construction can not be carried out otherwise, and the construction is forced to be stopped.

1C shows a method of manufacturing a conventional lower bridge. Specifically, the preflex beam 40 is manufactured by forming a protruding portion 42 horizontally protruding from the bottom of each inner side of the lower flange concrete 41, The precast concrete slab 50 is installed on the protruding portion 42 so that the precast concrete slab 50 and the preflex beam 40 are connected to each other by the projecting reinforcing bars 43 and 44, A method of manufacturing a hanging bridge so that a portion to which the projecting reinforcing bars 43 and 44 are connected is finished with concrete 45 is introduced.

Such a hanging bridge manufacturing is distinguished from a conventional method of manufacturing a precast type U-shaped segment 10 connected to each other in the longitudinal direction. However, when the weight of the slab and the live load act on the protruding portion 42, , A protruding reinforcing bar 43 is formed on the side surface of the lower flange concrete constituting each pre-flex beam and connected to the protruding reinforcing bars 44 of the slab, and then the portion to be connected is closed with the concrete 45, There is a problem in that it is complicated.

 1D shows another conventional lowering method. First, a L-shaped hypothetical frame 60 is installed between bridge substructures 50 such as a pier and a U-shaped free-standing frame 60 is placed on the L- After the cast segments 70 have been installed, a method of crimping and connecting precast segments 70 with each other by means of longitudinally arranged tension members 72, as shown in Fig.

1E, the U-shaped precast segment 70 is formed by introducing a prestress into the slab 71 in the transverse direction by the prestressing material 73 in advance. This is because the slab 71, Type precast segment 70. It can be seen that there is no correlation with the construction of the U-shaped precast segment 70,

However, since the construction method of the hanging bridge requires effort and cost for installation of the horseshoe-shaped construction such as the installation of the A-shaped construction frame 60, it is necessary to develop a simple and structurally stable hanging construction method for the hanging bridge construction .

Further, according to the conventional art, although a temporary vent or a large beam launcher can be used for a hanging bridge construction, there is a problem that it is not economical and suitable for a small or medium type hanging construction.

Korean Patent No. 10-1071642 filed on Sep. 21, 2009, entitled "Method of constructing a hanging bridge using a side beam and a slab of a psi" Korean Patent No. 10-1162346 filed on Apr. 2, 2012, entitled "Opening box structure using elbow box structure and bogie, and method of constructing bridge using the same" Korean Registered Patent No. 10-1107965 filed on Aug. 26, 2011, entitled "Method of constructing a railroad bridge" Korean Registered Patent No. 10-1024804 filed on July 12, 2010, entitled "Bridge top plate mounting method and bridging top plate mounting device using straight and rotational launching" Korean Patent No. 10-1239621 filed on November 29, 2012, entitled "Beam Launching Method Using End Strut with Roller Guide Section" Korean Registered Patent No. 10-1193608 filed on April 18, 2012, entitled "Beam Launcher with anchor device for bridge installation" Korean Patent No. 10-719305 filed on Jan. 21, 2005, entitled "Method of constructing a prestressed concrete beam of a bridge"

In order to solve the above problems, an object of the present invention is to provide a bridge structure in which an up-down hydraulic cylinder mounts a downwardly-directed in-phase bridge on a bridge pier and a bridge launching equipment repeatedly advances and reverses from a bridge- The present invention is to provide a launching equipment for a lower railway bridge construction and a lower railway bridge construction method using the same.

According to an aspect of the present invention, there is provided a launching equipment for launching a lower induction-type bridge for a lower railroad bridge construction on a bridge pier, the launching equipment for constructing a lower railway bridge according to the present invention, A plurality of up-down hydraulic cylinders respectively installed at corner portions of the bridge piers, elevating in the upper direction of the bridge piers, lowering the lower induction bridge, lowering the lower induction bridge, and mounting the lower induction bridge on the bridge supporter; A bridge launching equipment for launching the lowered inductive bridge on the bridgehead while advancing and retracting in a state of being spaced apart on the alternating or pierced bridge from the bridge manufacturing center; And a bridge transfer bogie mounted above the bridge launching equipment for transferring the lower inductive bridge over the bridge, the bridge launching equipment being adapted to move from the lowered inductive bridge to the bridge And carrying the lower type inductive bridge through the bridge transfer bogie, and after the lower type inductive bridge is installed on the bridge pier, the bridge is moved back to the bridge manufacturing bay.

Wherein the lower induction bridge includes at least one lower induction bridge, and wherein the bridge launching equipment repeatedly advances and retracts from the bridge production facility to sequentially connect at least one lower induction bridge to the bridge Can be launched.

Here, the up-down hydraulic cylinder is temporarily installed at each corner of the alternation or pier before the lower induction-type bridge is launched, and the lower-type induction bridge is disassembled and recovered after being installed on the bridge pier. do.

The launching equipment for constructing the lower railroad bridge according to the present invention may further include a cylinder cover attached to the up-down hydraulic cylinder to prevent corrosion of the up-down hydraulic cylinder and reinforce the outer shape.

Here, the bridge launching equipment may include a frame extended and installed so as to be able to move forward and backward from the bridge manufacturing facility; A launching equipment fixture installed at a front end of the frame and driven by a hydraulic cylinder to fix the frame on the bridge pier; A driving engine installed at both ends of the frame; A launching equipment operation device installed at a front end of the frame to control the operation so that the frame can be moved forward and backward by the driving engine from the bridge manufacturing site; A bridge conveyance truck installed on the bridge launching equipment for conveying the lower induction bridge on the bridge; And a bogie drive device for driving the bridge transfer bogie to be transported on the frame.

The bridge launching equipment includes a bogie stopper installed on the frame and stopping the bridge transfer bogie at a predetermined position. A bridge fixing unit for fixing the lower induction bridge on the bridge conveyance truck; A hydraulic cylinder mounting device to which a hydraulic cylinder for lifting and lowering the launching equipment fixing device is mounted; And a hydraulic cylinder mounting device rotation unit for rotating the hydraulic cylinder mounting device.

According to another aspect of the present invention, there is provided a method for constructing a lower railway bridge using a bridge launching equipment according to the present invention, comprising: launching a lowered inductive bridge for a lower railway bridge construction onto a bridgehead; A method for constructing a lower railway bridge using a bridge launching equipment, the method comprising the steps of: (a) installing an up-down hydraulic cylinder at first and second bridge piers, and inputting bridge launching equipment from a bridge building site; b) transferring and installing the bridge launching equipment on a first pier; c) transferring a first downwardly-directed in-line bridge over the first pier in the downwardly-inwardly directed bridge using a bridge transfer bogie of the bridge launching equipment; d) raising the up-down hydraulic cylinder to mount the first downwardly inductive bridge and then backing the bridge launching equipment to the bridge building site; e) lowering said up-down hydraulic cylinder resting on said first lowered inductive bridge; f) installing the first downwardly inductive bridge on the first pier; g) transferring the bridge launching equipment from the bridge manufacturing facility to a second pier; h) transferring the second lowered inductive bridge from the lower inductive bridge to the second bridge using a bridge transfer bogie of the bridge launching equipment; i) backing the bridge launching equipment to the bridge building site; And j) lowering the up-down hydraulic cylinder that is mounted on the second lower-profile inductive bridge to install the second lower-inductive bridge on the second pier, the bridge launching equipment comprising: Wherein at least one lower-shaped in-phase bridge is sequentially launched onto the bridge pier while repeating forward and backward movement in the state of being alternately or alternately spaced apart from the pier with respect to the manufacturing site.

In this case, the up-down hydraulic cylinders of the step a) are respectively installed at the corner portions of the bridge pier, and ascend in the direction of the upper part of the pier to lower the lower induction bridge, And is mounted on a counter support.

Here, the up-down hydraulic cylinder is temporarily installed at each of the corners of the alternate pier or bridge pier before the lower induction bridge is launched, and it is disassembled and recovered after the lower-type in- .

Here, the bridge launching equipment is advanced and fixed to the bridge pier in a state where the lower induction bridge is not stationary, and carries the lower induction bridge through the bridge transfer bogie, and the lower induction bridge And after being installed on the bridge pier, back to the bridge manufacturing site.

According to the present invention, the up-down hydraulic cylinder is mounted on a bridgehead with a downwardly directed in-phase bridge, and the bridge launching equipment repeatedly advances and retracts from the bridge building site, Thus, it is not necessary to use a conventional venting vent or a large beam launcher according to the conventional technique, and thus it is particularly useful for the construction of a small or medium-sized bridge having a small number of spans.

1A is a cross-sectional view of a conventional hanging bridge and a PSC girder bridge, FIG. 1B is a construction photograph using a hypothetical system of a channel bridge (UCB) according to a conventional technique, FIG. 1C is a cross- Fig. 1E is a perspective view of the U-shaped precast segment for downhole shown in Fig. 1D. Fig.
2 is a view schematically showing a lower railway bridge constructed by a lower railway bridge construction method using a bridge launching equipment according to an embodiment of the present invention.
3 is a perspective view of a bridge launching equipment for constructing a downhill railway bridge according to an embodiment of the present invention.
4 is a perspective view of a bridge launching equipment for constructing a lower railway bridge according to an embodiment of the present invention.
5 is a view showing a bridge launching equipment for constructing a lower railway bridge according to an embodiment of the present invention.
6 is a view for explaining a bridge launching equipment for constructing a lower railway bridge according to an embodiment of the present invention.
FIGS. 7A to 7D are views illustrating an up-down hydraulic cylinder and a cylinder cover installed on a pier at the time of constructing a lower railway bridge using a bridge launching equipment according to an embodiment of the present invention.
8 is a flowchart illustrating an operation of a lower railway bridge construction method using a bridge launching equipment according to an embodiment of the present invention.
FIGS. 9A to 9J are views for explaining the method of constructing the lower railway bridge using the bridge launching equipment according to the embodiment of the present invention, respectively.

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

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

[Launching equipment for construction of Harro-type railway bridge (100)]

FIG. 2 is a schematic view of a lower railway bridge constructed by a lower railway bridge construction method using a bridge launching equipment according to an embodiment of the present invention. FIG. 3 is a schematic view of a lower railway bridge construction for a lower railway bridge construction according to an embodiment of the present invention. FIG. 4 is a perspective view of a bridge launching equipment for constructing a downward railway bridge according to an embodiment of the present invention; FIG. 4 is a perspective view showing a lower railway bridge constructed by a bridge launching equipment;

As shown in FIG. 2, the lower railway bridge constructed by the lower railway bridge construction method using the bridge launching equipment according to the embodiment of the present invention includes a first bridge pier 330a and a second bridge pier 330a on a base portion 310, And a lower induction bridge 400 is mounted on the coaxial bearing 340 on the first bridge pier 330a and the second bridge pier 330b.

3 and 4, the lower railway bridge constructed by the lower railway bridge construction method using the bridge launching equipment according to the embodiment of the present invention includes first and second bridge columns 330a and 330b The up-down hydraulic cylinder 350 installed on the first bridge bridge 400a, 400b and 400c mounts the lower inductive bridge 400a, 400b and 400c on the first and second bridge columns 330a and 330b, 400b, and 400c are sequentially launched onto the first and second bridge piers 330a and 330b while repeating forward and backward operations.

Here, the up-down hydraulic cylinder 350 is installed at each corner of the first and second bridge columns 330a and 330b, and ascends in the upper direction of the first and second bridge columns 330a and 330b, 400b and 400c are lowered and then lowered so that the lower inductive bridge 400a, 400b and 400c are placed on the crosshead base 340 on the first and second bridge columns 330a and 330b, .

4, the bridge launching equipment 100 includes a frame 10, a driving unit 120, a launching equipment fixing unit 130, a launching equipment operation unit 140, a driving engine 150, A bridge conveyance truck 160 and a passage ladder 180. The lower induction bridge 400a and the lower induction bridge 400b are moved forward and backward while being separated from each other on the alternate bridge pierce 330 starting from a bridge production site. 400b, and 400c on the first and second bridge columns 330a and 330b. At this time, the bridge launching equipment 100 will be described later in detail with reference to FIG.

5A is a plan view, FIG. 5B is a front view, and FIG. 5C is a side view, and FIG. 6 is a side view of the present invention. FIG. 5A is a plan view showing a bridge launching equipment for constructing a lower railway bridge according to an embodiment of the present invention. FIG. 1 is a view for explaining a bridge launching equipment for constructing a lower railway bridge according to an embodiment of the present invention.

5A to 5C, a bridge launching equipment 100 for constructing a lower railway bridge according to an embodiment of the present invention includes a lowered inductive bridge 400 for constructing a lower railway bridge, The bridge 300 is a starting device for launching the lower induction bridge 400 while being advanced and retracted on the bridge 320 or the bridge 330 with the bridge 500 being the starting point. May be launched onto the bridge 330.

The bridge launching equipment 100 is advanced and fixed to the bridge 330 in a state where the lower induction bridge 400 is not stationary and is connected to the lower induction bridge 400 And after the lower induction bridge 400 is installed on the bridge 330, it is moved back to the bridge building 500. That is, the bridge launching equipment 100 sequentially launches at least one lower-shaped inductive bridge 400a, 400b onto the bridge columns 330a, 330b while repeating forward and backward operations from the bridge manufacturing site 500 .

At this time, the bridge conveyance truck 160 is installed on the bridge launching equipment 100 to convey the lower induction bridge 400 on the bridge 330.

As shown in FIG. 3, a plurality of up-down hydraulic cylinders 350 are installed at corner portions of the bridge pier 330, and ascend in the upper direction of the bridge pier 330 to connect the lower-type induction bridge 400 And then the lowered inductive bridge 400 is mounted on the beam receiver 340 on the bridge 330. The up-down hydraulic cylinder 350 is temporarily installed at each corner of the alternation 320 or pier 330 before the lower induction bridge 400 is launched, and the down- 400 may be disassembled after being installed in the bridge 330 and recovered.

7B, the cylinder cover 360 may be made of steel or aluminum. The cylinder cover 360 may be attached to the up-down hydraulic cylinder 350 to prevent corrosion of the up-down hydraulic cylinder 350 and to reinforce its contour. .

The lower inductive bridge 400 includes at least one under-shaped inductive bridge 400a and 400b, which includes a PSC U-shaped segment 410, But is not limited to, a guide rail 420 and an induction rail 430. That is, it includes a segment for a bridge such as a PSC U-shaped segment 410 because there is no reason to include an induction-phase slab 420 and an induction rail 430 unless it is a railway bridge construction.

5 and 6, a bridge launching equipment 100 for constructing a lower railway bridge according to an embodiment of the present invention includes a frame 110, a driving unit 120, a launching equipment fixing device 130, The driving device 140, the driving engine 150, the bridge conveyance truck 160, the hydraulic cylinder mounting device 170, the passageway ladder 180, the balancing drive device 190, the launching device conveying device 210, A stopper 220, a bridge fixture 230, a hydraulic cylinder mounting rotator 240, a hoist crane 250, and a frame connector 260.

The frame 110 is extended and extended from the bridge fabrication site 500 so that the frame 110 can be moved forward and backward and the driving unit 120 is installed on the frame 110.

The launching equipment fixing device 130 is installed at the front end of the frame 110 and is driven by a hydraulic cylinder to fix the frame 110 on the bridge 330.

The driving engine 150 is installed at both ends of the frame 110 and the launching equipment operation device 140 is installed at the front end of the frame 110 so that the frame 110 is rotated by the driving engine 150 And the operation is controlled so as to be able to move forward and backward from the bridge manufacturing facility 500.

The bridge transfer bogie 160 is installed on the bridge launching equipment 100 to transfer the lower induction bridge 400 onto the pier 330 and the bogie driving device 190 is installed on the frame 110, The bridge stopper stopper 220 is installed on the frame 110 to stop the bridge conveyance truck 160 at a predetermined position, The bridge fixing unit 230 is formed at the upper end of the bridge conveyance truck 160 so that the lower induction bridge 400 is fixed on the bridge conveyance truck 160. [

The hydraulic cylinder mounting device 170 is mounted with a hydraulic cylinder for raising and lowering the launching device fixing device 130 and the hydraulic cylinder mounting device rotation body 240 serves to rotate the hydraulic cylinder mounting device 170 do.

Further, a launching equipment transfer device 210, a hoist crane 250, and a frame connection part 260 may be formed below the bridge launching equipment 100.

As a result, the bridge launching equipment 100 according to the embodiment of the present invention is advanced and fixed to the bridge 330 in a state where the lower induction bridge 400 is not mounted, Shaped induction bridge 400 to the bridge manufacturing site 500 after the lower induction bridge 400 is installed on the bridge 330. The bridge 400 is then moved back to the bridge manufacturing site 500. [

7A to 7D are views illustrating examples of an up-down hydraulic cylinder and a cylinder cover installed on a pier when a lower rail type bridge construction using a bridge launching equipment according to an embodiment of the present invention is performed.

7A, an up-down hydraulic cylinder 350 may be installed on a bridge pier when a lower railway bridge construction using a bridge launching equipment according to an embodiment of the present invention is performed. At this time, as shown in FIG. 7B, The cylinder cover 360 may be made of steel or aluminum and may be attached to the up-down hydraulic cylinder 350 to prevent corrosion of the up-down hydraulic cylinder 350 and reinforce its contour. 7C and 7D show that the cylinder cover 360 is attached to the hydraulic cylinder 350, respectively.

[Construction method of the lower railway bridge (400) using the bridge launching equipment (100)

FIG. 8 is a flowchart illustrating an operation of a lower railway bridge construction method using a bridge launching equipment according to an embodiment of the present invention. FIGS. 9A to 9J are views showing a method of constructing a lower railway bridge construction method using a bridge launching equipment according to an embodiment of the present invention, These are drawings specifically for explaining.

Referring to FIG. 8, a lower railway bridge construction method using a bridge launching equipment according to an embodiment of the present invention includes installing an up-down hydraulic cylinder 350 on piers 330a and 330b, The launching equipment 100 is inserted (S110). 9A, the up-down hydraulic cylinders 350 are installed at the corners of the alternating 320 and pier 330, respectively, and are elevated upwardly of the pier 330, Subsequently, the up-down hydraulic cylinder 350 receives the lower inductive bridge 400 and then descends to place the lower inductive bridge 400 on the cross support 340 on the bridge 330 can do. The up-down hydraulic cylinder 350 is temporarily installed at each corner of the alternation 320 or pier 330 before the lower induction bridge 400 is launched, and the down- 400 can be disassembled after being installed in the bridge 330 and recovered.

Next, the bridge launching equipment 100 is installed on the first pier 330a (S120). 9B, the bridge launching equipment 100 moves from the bridge manufacturing site 500 to the bridge 320 or the bridge 330 in a state of being separated from the bridge 320 or the bridge 330, And is transferred and installed on the pier 330a. As described later, the bridge launching equipment 100 sequentially launches at least one lower type inductive bridge 400a, 400b onto the bridge columns 330a, 330b while repeating forward and backward movement.

Next, as shown in FIG. 9C, the first lower-type inductive bridge 400a is transferred onto the first bridge bridge 330a using the bridge transfer bogie 160 of the bridge launching equipment 100 (S130).

Next, the up-down hydraulic cylinder 350 is lifted to mount the first lower-type inductive bridge 400a, and then the bridge launching equipment 100 is moved back to the bridge manufacturing facility 500 (S140) . Specifically, as shown in FIG. 9D, after the up-down hydraulic cylinder 350 is raised to mount the first lower-shaped induction-type bridge 400a, the bridge launching equipment 100 is moved to the bridge production facility 500). That is, the bridge launching equipment 100 is advanced and fixed to the bridge 330 in a state where the lower induction bridge 400 is not stationary, Conveying the bridge 400 and after the lower inductive bridge 400 is installed on the bridge 330, it is moved back to the bridge building 500.

Next, as shown in FIG. 9E, the up-down hydraulic cylinder 350, which rests on the first lower-type inductive bridge 400a, is lowered (S150).

Next, as shown in FIG. 9F, the first lower-shaped inductive bridge 400a is installed on the first pier 330a (S160).

Next, as shown in FIG. 9G, the bridge launching equipment 100 is transferred from the bridge manufacturing site 500 onto the second pier 330b and installed (S170).

Next, as shown in FIG. 9H, the second lower-type inductive bridge 400b is transferred to the second bridge bridge 330b using the bridge transfer bogie 160 of the bridge launching equipment 100 S180).

Next, as shown in FIG. 9I, the bridge launching equipment 100 is moved back to the bridge manufacturing site 500 (S190).

Next, as shown in FIG. 9J, the down-down hydraulic cylinder 350, which is mounted on the second lower-type inductive bridge 400b, is lowered to connect the second lower- And is installed on the pier 330b (S200).

As a result, according to an embodiment of the present invention, an up-down hydraulic cylinder is mounted on a bridgehead with a downwardly directed in-phase bridge, and the bridge launching equipment repeatedly advances and reverses from the bridge building site, So that it is not necessary to use a conventional venting vent or a large beam launcher according to the prior art. In particular, the present invention can be effectively applied to the construction of a small or medium bridge having a small number of spans.

In the meantime, in the launching equipment for the lower railway bridge construction according to the embodiment of the present invention and the lower railway bridge construction method using the same, it is explained that the railway bridge is a lowered inductive bridge. However, It will be apparent to those skilled in the art that the present invention can be applied.

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

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

100: Bridge launching equipment
110: frame
120:
130: launching equipment fixture
140: Launching machine operation device
150: drive engine
160: Bridge conveyance truck
170: Hydraulic cylinder mounting device
180: Stairway ladder
190: Balance drive device
210: Launching machine feed device
220: Balance stopper
230: bridge fixing unit
240: Hydraulic cylinder mounting device rotation body
250: Hoist crane
260: frame connection portion
310:
320: Shift
330: Pier
330a: First pier
330b: second pier
340: Timer rest
350: Up-down hydraulic cylinder
360: Up-down hydraulic cylinder cover
400: lowered inductive bridge
400a: first lowered inductive bridge
400b: second lower shaped inductive bridge
410: PSC U type segment
420: induction phase slab
430: induction rail
500: bridge production building

Claims (10)

A launching equipment for launching a lowered inductive bridge (400) for a lower railway bridge construction on a bridge pier (330)
Shaped bridge 400 is installed at the corner of the bridge pier 330 and ascends upward of the bridge pier 330 to receive the lower induction bridge 400 and descend to connect the lower bridge 420 to the bridge bridge 400 A plurality of up-down hydraulic cylinders (350) for mounting on a countersunk head (340)
A bridge launching for launching the lower induction bridge 400 on the bridge pier 330 while advancing and retracting in a state of being spaced apart on the alternate bridge 320 or bridge bridge 330 starting from the bridge production site 500 Equipment (100); And
A bridge conveyance truck 160 installed on the bridge launching equipment 100 for conveying the lower induction bridge 400 on the bridge 330,
, ≪ / RTI &
The bridge launching equipment 100 is advanced and fixed to the bridge 330 in a state where the lower induction bridge 400 is not stationary and is connected to the lower induction bridge 160 via the bridge conveyance carriage 160 400, and the lower induction bridge (400) is installed on the bridge pier (330), and then the bridge is moved back to the bridge manufacturing site (500). The method according to claim 1,
The lower launch induction bridge 400 includes at least one lower induction bridge 400a and 400b and the bridge launching equipment 100 includes at least one lower induction bridge 400a, And one or more lower-shaped inductive bridges (400a, 400b) are sequentially launched onto the bridge columns (330a, 330b). The method according to claim 1,
The up-down hydraulic cylinder 350 is temporarily installed at each corner of the alternation 320 or bridge pier 330 before the lower induction bridge 400 is launched, Is installed on the bridge pier (330) and then disassembled and recovered. The launching equipment for the construction of the lower railway bridge. The method of claim 3,
Further comprising a cylinder cover (360) attached to the up-down hydraulic cylinder (350) to prevent corrosion of the up-down hydraulic cylinder (350) and to reinforce the contour of the up-down hydraulic cylinder (350). The apparatus of claim 1, wherein the bridge launching equipment (100)
A frame 110 which is extended and installed so as to be able to move forward and backward from the bridge manufacturing site 500;
A launching equipment fixture 130 installed at a front end of the frame 110 and driven by a hydraulic cylinder to fix the frame 110 on the bridge 330;
A driving engine 150 installed at both ends of the frame 110;
A launching equipment operation device 140 installed at a front end of the frame 110 to control the operation so that the frame 110 can be moved forward and backward by the driving engine 150 from the bridge manufacturing site 500;
A bridge conveyance truck 160 installed on the bridge launching equipment 100 for conveying the lower induction bridge 400 onto the bridge 330; And
A truck driving device 190 for driving the bridge conveying carriage 160 to be transported on the frame 110,
The launching equipment for the construction of the lower railway bridge. 6. The bridge launching equipment (100) according to claim 5, wherein the bridge launching equipment (100)
A bogie stop stopper (220) installed on the frame (110) to stop the bridge bogie (160) at a predetermined position;
A bridge fixing unit 230 for fixing the lower induction bridge 400 on the bridge conveyance truck 160;
A hydraulic cylinder mounting device 170 to which a hydraulic cylinder for lifting and lowering the launching equipment fixing device 130 is mounted; And
A hydraulic cylinder mounting unit rotating body 240 for rotating the hydraulic cylinder mounting unit 170,
And the launching equipment for the construction of the Harro-type railroad bridge. In a lower railway bridge construction method using a bridge launching equipment for launching a lower induction bridge 400 for a lower railway bridge construction on a bridge 330,
a) installing the up-down hydraulic cylinder 350 at the first and second bridge columns 330a and 330b and inputting the bridge launching equipment 100 from the bridge manufacturing site 500;
b) transferring and installing the bridge launching equipment (100) on the first pier (330a);
c) using the bridge transfer bogie 160 of the bridge launching equipment 100 to transfer the first downwardly directed overhead bridge 400a from the downwardly directed overhead bridge 400 onto the first bridge pier 330a ;
d) moving the up down hydraulic cylinder 350 up to the first lower undercut bridging 400a and then backing the bridge launching equipment 100 to the bridge fab 500;
e) lowering the up-down hydraulic cylinder (350) resting on the first lower-induction bridge (400a);
f) installing the first lowered inductive bridge (400a) on the first pier (330a);
g) transferring the bridge launching equipment 100 from the bridge manufacturing facility 500 onto a second bridge pier 330b;
h) transferring the second lower-type inductive bridge 400b from the lower-type inductive bridge 400 to the second bridge bridge 330b using the bridge transfer bogie 160 of the bridge launching equipment 100 step;
i) backing the bridge launching equipment (100) to the bridge building site (500); And
j) lowering the up-down hydraulic cylinder 350 that houses the second lower-type inductive bridge 400b and installing the second lower-inductive bridge 400b on the second bridge bridge 330b
, ≪ / RTI &
The bridge launching equipment 100 may include at least one lower induction bridge 400a (see FIG. 4) while repeatedly advancing and retreating with the bridging facility 500 as a starting point, , And 400b are sequentially launched onto the bridge columns (330a, 330b). The method of constructing a lower railway bridge using the bridge launching equipment. 8. The method of claim 7,
The up-down hydraulic cylinder 350 of the step a) is installed at each corner of the bridge pier 330 and rises upwards of the pier 330 to receive the lower induction bridge 400 and then descend And the lower induction bridge (400) is mounted on the cross support (340) on the bridge pier (330). 9. The method of claim 8,
The up-down hydraulic cylinder 350 is temporarily installed at each corner of the alternation 320 or bridge pier 330 before the lower induction bridge 400 is launched, Is installed in the bridge pier (330) and then disassembled and recovered. The method for constructing a lower railway bridge using the bridge launching equipment. 8. The method of claim 7,
The bridge launching equipment 100 is advanced and fixed to the bridge 330 in a state where the lower induction bridge 400 is not stationary and is connected to the lower induction bridge 160 via the bridge conveyance carriage 160 400, and the lower induction bridge 400 is installed on the bridge 330, and is then moved back to the bridge manufacturing site 500. The lower bridge type railway bridge construction method using the bridge launching equipment.

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