KR20140013197A - Safety device for construction of railroad bridge track, assembling method thereof and installing method of safety device - Google Patents

Abstract

The present invention relates to a safety device for railroad tracks and a method for assembling the same. In the safety device installed on the upper part of the girder of the bridge, it extends from both sides of the girder and expands the work space, thus allowing the worker to perform track work in a safer and more comfortable environment, and pre-assemble it on the ground. It is possible to install on top of the girder, and then it is easy to assemble and it is related to the track safety device for railroad bridge construction and its assembly method to facilitate the dismantling operation without damaging the structure.
To this end, the present invention, in the safety device installed on the top of the girder for the track construction of the bridge, horizontally spaced frame 10 is installed in the front and rear spaced apart a certain distance and the bottom surface is in contact with the top of the girder; Spaced apart from the front, rear, left and right, the bracket 21 is provided on the lower inner side so that the left and right ends of the horizontal frame are coupled, the pipe shape is arranged upright by a predetermined distance from the left and right sides of the girder by the bracket Vertical post 20; A safety panel 30 having a rectangular panel shape installed between the front and rear vertical posts with both left and right ends mounted on the bracket; And a pipe-shaped guard rail 40 mounted between at least one of the front and rear vertical posts so as to be disposed above the safety footrest.

Description

Safety device for construction of railroad bridge track, assembling method approximately and installing method of safety device

The present invention relates to a track safety device for railroad bridge, and a method for assembling and installing the same. In the safety device installed on the upper part of the girder of the bridge, it extends from both sides of the girder and expands the work space, thus allowing the worker to perform track work in a safer and more comfortable environment, and pre-assemble it on the ground. It is possible to install the upper part of the girder, and then it is easy to assemble and it is related to the track safety device of railroad bridge to facilitate the dismantling work without damaging the structure and its assembly and installation method.

In general, in order to construct a structure such as a high-speed railway or a general railway, the overall design is made in consideration of the size, layout, and shape of the facility, and the track, roadbed, telecommunication, and construction work are performed according to the design. .

In the track construction of railways, roadbeds and track structures that support tracks and tracks by rail compaction, rail welding, gravel or concrete direct connection, etc. are used to withstand the impact load of trains, reduce vibrations and prevent track distortion. Construct.

On the other hand, railways are sometimes installed in the form of bridge structures (railroad bridges) due to the safe and smooth traffic of ordinary vehicles, improvement of the surrounding environment, or topographical conditions. Unlike these railway bridges, which are constructed on the ground, It consists of a superstructure consisting of girders and slabs for the train to travel, and a substructure consisting of shifts and piers to transfer loads acting on the superstructure to the ground. The girder is mounted and track work is performed.

However, there are risks of safety accidents such as falling of construction materials, dust scattering, and falling of workers in the process of handling various heavy equipment or materials during construction on the upper part of railway bridge, and work efficiency due to psychological anxiety of workers due to high work. There was a problem that this is lowered.

Accordingly, in order to protect the worker from a safety accident such as a fall, a safety device having a safety scaffold is installed on the upper part of the girder. For example, the safety device has a structure in which a grid-type wire mesh is attached to a rectangular steel frame so that the worker can step on it. The safety scaffold is mounted on the upper part of the girder, and the left and right sides of the structure is equipped with a safety fence to prevent the fall, the safety device performs a track construction, such as a plurality of continuous arrangement along the length of the track. It provides a space for people to do it and serves as a way for workers to walk safely.

However, in the conventional safety device, since the vertical fence is installed on the vertical line from the side of the girder, not only there is no space in the work space but also there is a problem that other workers are uncomfortable while one worker is working.

In addition, in the related art, each component of the safety device must be assembled after lifting the upper part of the girder, and the shape is formed at right angles, making it difficult to install on a curved track.

In addition, in order to securely install such a safety device on the girder, a groove for fixing the fixing member must be formed on the side of the girder, so there is a concern that the strength of the girder may be weakened, and the dismantling operation is very cumbersome.

The present invention has been invented to solve the problems as described above, the installation and disassembly as well as to allow the operator to safely and comfortably work by further expanding the work space and passageway during work such as railroad bridge track construction The present invention provides an easy railroad track safety device and its assembly and installation method.

In order to achieve the above object, the safety device for orbital construction according to the present invention is a safety device installed on an upper part of a girder for a track construction of a bridge. Horizontal frame; Spaced vertically spaced apart from the front, rear, left and right ends of the horizontal frame is provided with a bracket to be coupled to the inside, the vertical post of the pipe shape is arranged upright by a predetermined distance from the left and right sides of the girder by the bracket ; A safety panel having a rectangular panel shape installed between the front and rear vertical posts with both left and right ends mounted on the bracket; And a pipe-shaped guard rail mounted between the front and rear vertical posts so as to be disposed above the safety footrest.

Bracket according to the invention is arranged in a direction parallel to the vertical post so that the end of the horizontal frame is inserted and coupled, the lower portion of the vertical portion is located below the lower portion of the vertical post; A horizontal part horizontally connected to a lower end of the vertical post and a predetermined lower end of the vertical part so that the end of the safety footrest is fixed in a fixed state; A support part connected to an upper end of the vertical part and a lower end of the vertical post to be inclined toward the inside to support a load applied to the horizontal part; And an inclined portion connected to the lower end of the vertical post and the lower end of the vertical part to be inclined downward by a predetermined angle toward the girder side to transfer the horizontal load applied by the wind to the girder side.

At this time, the horizontal frame is inserted and coupled to the vertical portion by the connecting means, the connecting means, one side is welded to the end of the horizontal frame and the other side is open to be inserted into the vertical portion; A pair of first coupling holes formed through the front and rear sides of the connector; A pair of second coupling holes penetrating through front and rear sides of the vertical portion to correspond to the first coupling holes; And a coupling bolt for coupling the first and second coupling holes to one side to couple an end portion of the horizontal frame to a vertical portion.

The safety scaffold is fixed to the horizontal portion by the fixing means, the fixing means, a pair of fastening holes formed through the frame of both ends of the safety scaffold mounted to the horizontal portion; And a U-shaped bolt penetrating the fastening hole to fix the horizontal portion.

In addition, the guard rail is mounted to the vertical post by the mounting means, the mounting means, characterized in that consisting of at least one clamp attached to a predetermined position of the vertical post so that the end of the guard rail is inserted.

In addition, the method of assembling the railroad bridge safety device for a railroad bridge according to the present invention includes the steps of integrally coupling a bracket having a predetermined length in the vertical and horizontal direction on the lower inner side of the vertical post; Coupling bracket vertical portions of the vertical posts to the left and right ends of the front and rear horizontal frames, respectively; Fastening safety steps between the front and rear sides of the vertical posts so as to be mounted on the bracket horizontal portion of the vertical posts; And mounting at least one guard rail between the front and rear vertical posts so as to be positioned above the safety footrest.

In addition, the present invention is characterized in that it further comprises the step of attaching the net covering the vertical post and the guard rail.

According to the present invention, a method for installing a track safety device for a railroad bridge according to the present invention includes a plurality of safety devices assembled by the above method continuously and then lifted and mounted to the upper part of the girder of the bridge to form a vertical portion of the vertical post bracket. After the cap-shaped bolt member is inserted into the fixing hole, the cap portion is pushed toward the side of the girder to be installed in a fixed manner.

As described above, according to the track safety device and the assembly and installation method of the railway bridge of the present invention, the safety scaffold that can provide a safe working space and work path to the worker in the course of the rail bridge construction work, etc. In addition to the inherent effects, the work area can be extended more than the width of the girders to make the work more convenient and safe for the worker, and also to improve the work efficiency and smoothly perform the trajectory work because it does not inconvenience other workers. In addition, it is easy to assemble and dismantle, so it can be appropriately selected according to the construction site's conditions or situation, such as pre-assembled on the ground and then installed by lifting to the top of the girder or assembling and installing on the top of the girder. Even with the advantage that it can be installed.

1 is a perspective view of a safety device according to a preferred embodiment of the present invention
Figure 2 is an exploded perspective view of the safety device according to the present invention
Figure 3 is a perspective view showing a state in which the three safety devices of Figure 1 combined in succession
4a to 4e is an assembly process of the safety device according to the present invention
5A to 5C are partially enlarged views showing a coupling state between the respective components.
Figure 6 is a construction process of the safety device according to the present invention

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily implement the technical idea of the present invention. The present invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

First, Figure 1 is a perspective view of a safety device according to a preferred embodiment of the present invention, Figure 2 is an exploded perspective view of the safety device according to the present invention, Figure 3 shows a state in which three consecutive safety devices of Figure 1 combined Perspective view.

According to the drawings, the railroad track safety device (S) according to the present invention, in the safety device installed on the girder of the railroad bridge, spaced apart a predetermined distance in front and rear and the connector 11 is provided at both left and right ends. A horizontal frame 10 whose bottom surface is in contact with the upper surface of the girder; Vertical posts 20 provided with brackets 21 coupled to both left and right ends of the horizontal frame at a lower inner side and spaced apart from the left and right sides of the girder by the brackets; Safety footrest 30 is installed between the front and rear vertical post in a state that the left and right ends are mounted on the bracket; And at least one guard rail 40 installed between the front and rear vertical posts so as to be positioned above the safety footrest.

This will be described in more detail as follows.

The horizontal frame 10 is formed in a metal rectangular pipe shape having a predetermined length, and the U-shaped connector 11 is integrally coupled by welding to both left and right ends thereof. The opening portion of the connector 11 is inserted and coupled to the vertical portion of the bracket of the vertical post to be described later, for this purpose, a pair of first coupling holes 11a are formed in the front and rear sides of the connector so as to pass through the washer and the coupling bolt 11b. Is fastened by

The horizontal frame 10 is the bottom surface is in contact with the upper surface of the girder 100 when the safety device of the present invention is installed on the girder of the bridge, the cross-sectional shape of the horizontal frame in order to contact the upper surface of the girder closely Although it is used is not necessarily limited to this, it is also possible to use other shapes such as circular or hexagonal.

In addition, the length of the horizontal frame 10 is preferably formed slightly longer than the width of the girder 100. That is, by maintaining a predetermined distance between the end of the horizontal frame and the side of the girder to provide a space for the cap portion of the cap-shaped bolt member to be mounted to the vertical portion of the bracket of the vertical post disposed on the left and right ends of the horizontal frame do. This will be described later.

The vertical posts 20 are formed in a metal square pipe shape having a predetermined length, and four are formed in a set to be spaced apart at regular intervals in the front, rear, left, and right directions to form an overall rectangular shape.

The vertical posts 20 are coupled to each other by welding in a form in which the brackets 21 are opposed to each other on the lower inner side of the left and right vertical posts when disposed on both left and right sides.

The bracket 21 is formed in a short pipe shape having a rectangular cross section, and is formed in a shape extending to a predetermined length in the lower portion of the vertical post 20 to be coupled to the end of the horizontal frame 10 and to the side of the girder. It is fixed, and consists of a vertical part, a horizontal part, a support part, and an inclination part, and these are integrally couple | bonded together by welding.

The vertical portion 211 is arranged in a direction parallel to the vertical post and a pair of second coupling holes 211a corresponding to the first coupling holes 11a are formed through the front and rear sides thereof to be horizontal by the coupling bolts 11b. It is possible to fasten with the connector (11) of the frame, the fixing hole 211b is formed in the left and right side through the cap-shaped bolt member 211c by the bracket is made to be fixed to the side of the girder 100. At this time, the lower portion of the vertical portion 211 is positioned below the lower portion of the vertical post, the position of the fixing hole 211b is also formed below the horizontal frame.

The horizontal portion 212 is connected to the lower end of the vertical post 31 and the predetermined position of the upper end of the vertical portion 211, but is disposed in line with the horizontal frame 10 is fixed to the safety step described later by the c-shaped bolt (31b), etc. To be combined.

The support part 213 is connected to a predetermined position of the upper end of the vertical part 211 and the lower end of the vertical post 20, and is formed to be slightly inclined toward the inner side (horizontal frame side) to support the load applied to the horizontal part and torsion It is made to prevent.

The inclined portion 214 is connected to the lower end of the vertical post 20 and the lower end of the vertical part 211, and is formed to be inclined downward at a predetermined angle toward the girder side to transmit the horizontal load applied by the wind to the girder side. .

The bracket 21 configured as described above has a predetermined length in the left and right direction and the front end (vertical portion) is positioned on the side of the girder, thereby forming the vertical post 20 extending outward from the side of the girder by a predetermined distance. This makes it possible to further expand the workspace at the top of the girder.

In addition, the vertical post 20 is at least one clamp 22 is bonded by a joining means (not shown), such as bolts or rivets in a predetermined position so that the guard rail to be described later is mounted.

The safety scaffold 30 is fixedly coupled between the front and rear both sides of the vertical post bracket 21 to form a space and a moving passage for the operator to work, such as orbital construction, such a safety scaffold is formed in the shape of a rectangular metal panel. The four edges are composed of a frame 31 having a rectangular pipe shape. A wire mesh (EX Metal lath: 32) is attached to the inside of the frame, and bar support members 33 are provided at regular intervals to increase strength. Try to improve.

At this time, a plurality of fastening holes 31a are formed through both ends of the frame 31 of the safety scaffold, and when the safety scaffold is coupled to the vertical post, both ends of the frame are mounted on the horizontal portion of the bracket by the c-shaped bolt 31b. Fix and fasten.

In addition, even when a plurality of safety devices according to the present invention are used in combination, the bolts may be fixed to each other through fastening holes 31a formed in the frames of the safety steps adjacent to each other. Accordingly, the entire safety scaffold can be connected to one, so that the safety of the worker on the safety scaffold can be promoted.

The wire mesh 32 is formed into a net-like shape by weaving a wire of a certain thickness into a rhombus or hexagon, etc., and coating the surface with an anti-slip agent or a non-slip member made of rubber or the like on the wire mesh surface (not shown). It is attached at regular intervals to prevent the operator from slipping in the process of working on the safety scaffold.

The left and right widths of the safety scaffold 30 are formed to match the width of the bracket horizontal portion of the vertical post, and the length of the safety scaffold is preferably formed to match the spacing of the front and rear vertical posts.

The guard rail 40 is installed at least one between the front and rear both sides of the vertical post to prevent the operator from falling when working on the safety footrest, such a guard rail is formed in a metal pipe shape having a predetermined length, the left and right ends are clamps, etc. It is coupled to a predetermined position of the vertical post 20 by the same mounting means. At this time, when using a plurality of safety devices according to the present invention in combination, the ends of both side guard rails adjacent to each other can be combined at one time by one mounting means.

In addition, a net (not shown) made of synthetic resin may be separately installed to cover the outside of the guard rail 40 and the vertical post 20, and such a net may be further separated from the safety footrest so that the worker does not fall off with the guard rail. More protection is possible.

The safety device (S) configured as described above can be installed as such, but as shown in Figure 3 may also be installed by lifting to the top of the girder of the bridge after continuously combining in the longitudinal direction.

Next, look at the assembly of the safety device according to the invention and the order of installation on the girder of the bridge.

[1] combination of horizontal frame and vertical post

First, the vertical posts are coupled to the left and right ends of the horizontal frame arranged in front by the connecting means, wherein the vertical posts coupled to the horizontal frame are integrally coupled with brackets having a predetermined length in the vertical and horizontal directions on the lower inner side. Use the state.

As shown in FIG. 4A, the first coupling hole 11a formed in the right (or left) end opening 11a of the front horizontal frame 10A and the bracket vertical portion 211 formed in the right vertical post 20A are formed. Insert the connector into the vertical portion while matching the position of the two coupling holes (211a) to match each other, then insert the washer and fasten with the coupling bolt (11b) to engage.

In the same manner as above, as shown in FIG. 4B, the connector 11 at the left (or right) end of the horizontal frame 10A is inserted into and coupled to the bracket vertical portion 211 of the left vertical post 20B to be perpendicular to the horizontal frame. Complete the assembly of the post.

For reference, FIG. 5A illustrates the state where the end of the horizontal frame (connector) is inserted into the vertical portion of the bracket of the vertical post and the end of the horizontal frame before the coupling bolt is fastened.

In addition, as shown in Figure 4c, the vertical posts (20C, 20D) are also coupled to the left and right both ends of the horizontal frame (10B) arranged in the rear, respectively, the horizontal frame (10A) (10B) and vertically disposed in front and rear, respectively The posts 20A, 20B (20C, 20D) are spaced at regular intervals, preferably the length of the footrest.

[2] fastening of safety boards

Subsequently, as illustrated in FIG. 4D, the safety scaffold is fixedly coupled between the front and rear vertical posts by fixing means. After mounting both ends of the frame of the safety scaffold 30 to the bracket horizontal portions 212 of the vertical posts on both sides. The bracket horizontal portion 212 is coupled to the U-shaped bolt 31b through the fastening hole 31a formed in the frame.

In addition, when the safety device of the present invention is continuously coupled to each other also adjacent to each other through the fastening holes formed in each frame through the coupling hole with the U-shaped bolt (31b). At this time, the outermost safety footrest 30 is mounted so that the frame end is to the end of the bracket horizontal portion, while the safety footrest disposed inside is mounted so that the frame end is in the middle position of the bracket horizontal portion adjacent to each other Allow the footrest to rest on one bracket horizontal.

In addition, when the safety device of the present invention is assembled and installed on the upper part of the girder without assembling on the ground, in the curved section of the bridge, the frame end of the safety scaffold may be fixed so as to come only to a part of the bracket horizontal part.

For reference, FIG. 5B shows a state in which the safety scaffolds adjacent to each other are mounted on one bracket horizontal portion and fixed with a c-bolt.

[3] guardrail mounting

Next, as shown in FIG. 4E, at least one guard rail is mounted between the front and rear both vertical posts by mounting means, and the cover 221 of the clamp 22 attached to a predetermined position of the vertical post 20. After opening the insert of the end of the guard rail between the cover again and fastened with a nut 222 and bolt 223.

When the mounting of the guard rail is completed, attach a net (not shown) covering the vertical post and the guard rail outside.

For reference, FIG. 5C specifically illustrates a state in which the end of the guard rail is mounted on the vertical post by a mounting means such as a clamp.

[4] installation on girders of bridges

After assembling two to three consecutive safety devices in the longitudinal direction as described above, the lifting device is lifted to the girder 100 of the bridge by using lifting means (not shown), such as a tower crane, as shown in FIG. Mount it.

In order to install the safety device according to the present invention, the cap-shaped bolt member 211c is inserted into the fixing hole 211b formed in the vertical portion of the bracket of the vertical post, and then the cap portion is pushed toward the side of the girder to fix it.

Alternatively, the parts constituting the safety device of the present invention may be assembled to the upper part of the girder by the lifting means and assembled in the same order as described above.

As described above, after the safety device according to the present invention is continuously installed in the upper part of the girder along the longitudinal direction of the bridge, it is possible to perform a work such as track construction, in which case the working space is wider than the width of the girder, specifically The wider width of both brackets allows the operator to work in a safer and more comfortable condition.

10: horizontal frame 11: connector
11a: first coupling hole 11b: coupling bolt
20: vertical post 21: bracket
211: vertical portion 211a: second coupling hole
211b: fixing hole 211c: cap-shaped bolt member
212: horizontal portion 213: support portion
214: slope 22: clamp
221 cover 222 bolt
223 nut 30 safety footrest
31 frame 31a fastening hole
31b: U bolt 32: wire mesh
33: support member 40: guard rail
100: girder S: safety device

Claims (9)

In the safety device installed on the girder for the track construction of the bridge,
A horizontal frame 10 having a pipe shape in which the front and rear surfaces are spaced apart by a predetermined distance, and the bottom of which is in contact with the upper part of the girder;
Spaced apart from the front, rear, left and right, the bracket 21 is provided on the lower inner side so that the left and right ends of the horizontal frame are coupled, the pipe shape is arranged upright by a predetermined distance from the left and right sides of the girder by the bracket Vertical post 20;
A safety panel 30 having a rectangular panel shape installed between the front and rear vertical posts with both left and right ends mounted on the bracket; And
A pipe-shaped guard rail 40 mounted between at least one of the front and rear vertical posts to be disposed above the safety footrest;
Railroad safety device for railroad tracks characterized in that it comprises a. The method of claim 1,
A net installed outside the vertical post 20 and the guard rail 40 to cover the outside;
The railroad track safety device characterized in that it further comprises a. The method of claim 1,
The bracket 21 is,
Vertical parts 211 arranged in parallel with the vertical post 20 so that the ends of the horizontal frame 10 are inserted and coupled, the lower part of which is located below the lower part of the vertical post;
A horizontal part 212 horizontally connected to a lower end of the vertical post and a predetermined lower end of the vertical part so that the end of the safety footrest 30 is fixed in a mounted state;
A support part 213 connected to an upper end of the vertical part and a lower end of the vertical post so as to support a load applied to the horizontal part, and formed to be inclined inwardly; And
An inclined portion 214 connected to a lower end of the vertical post and a lower end of the vertical part so as to transmit a horizontal load applied by the wind to the side of the girder, and inclined downward by a predetermined angle toward the girder side;
Railroad track safety device, characterized in that it comprises a railroad bridge. The method of claim 3,
The horizontal frame 10 is inserted and coupled to the vertical portion 211 by a connecting means, the connecting means,
One end is welded to the end of the horizontal frame and the other end is connected to open to the vertical portion (11);
A pair of first coupling holes 11a formed through front and rear sides of the connector;
A pair of second coupling holes 211a formed through the front and rear sides of the vertical part to correspond to the first coupling holes; And
A coupling bolt 11b for coupling the first and second coupling holes to one side to couple an end portion of the horizontal frame to a vertical portion;
Railroad track safety device, characterized in that consisting of. The method of claim 3,
The safety footrest 30 is fixedly coupled to the horizontal portion 212 by a fixing means, the fixing means,
A pair of fastening holes 31a formed through the safety frame both ends of the frame 31 mounted on the horizontal portion; And
A U-shaped bolt 31b penetrating the fastening hole to fix the horizontal portion;
Railroad track safety device, characterized in that consisting of. The method of claim 1,
The guard rail 40 is mounted to the vertical post 20 by the mounting means, the mounting means,
At least one clamp 22 attached to a predetermined position of the vertical post 20 so that the end of the guard rail is inserted;
Safety device for railroad track railroad bridge, characterized in that the. Integrally coupling brackets 21 each having a predetermined length in a vertical direction and a horizontal direction inside a lower portion of the vertical posts 20A, 20B. 20C, and 20D;
Coupling bracket vertical portions 211 of vertical posts to left and right ends of the front and rear horizontal frames 10A and 10B, respectively;
Fastening safety steps 30A and 30B between the front and rear sides of the vertical posts 20A and 20C and 20B and 20D to be mounted on the bracket horizontal portion 212 of the vertical post; And
Mounting at least one guard rail (40A, 40B) between the front and rear both vertical posts so as to be positioned above the safety footrest;
Assembly method of the railroad track safety device of the railroad bridge comprising a. 8. The method of claim 7,
The method of assembling the railroad track safety device further comprises the step of attaching a net covering the vertical posts (20A, 20B, 20C, 20D) and the guard rails (40A, 40B). After combining a plurality of safety devices (S) assembled by the method of claim 7 or 8 in succession, and lifted and mounted to the top of the girder 100 of the bridge, the fixing formed on the vertical portion of the bracket of the vertical post 211 And inserting the cap-shaped bolt member (211c) into the hole (211b) and then pushing the cap part toward the side of the girder to fix and install the track bridge safety device for the railway bridge.

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