KR101684477B1 - Construction method of bridge using girder with integral coping - Google Patents

Abstract

The present invention relates to a method for constructing a bridge using a girder-integrated coping portion, which can minimize high-altitude work and easily adjust the height of a bridge without cutting a steel pile by coupling a connecting steel pipe integrated with a girder to an upper end of the steel pile supported by the ground. The method for constructing a bridge using a girder-integrated coping portion comprises the steps of: a) installing a plurality of steel piles on the ground to be spaced apart from each other; b) coupling a main girder between two connecting steel pipes each having a coupler formed on a lower portion thereof to protrude, and fabricating a plurality of girder-integrated coping portions on outer portions of the connecting steel pipes on the ground, each of the girder-integrated coping portions having a girder coupled to an end portion thereof; c) coupling the girder-integrated coping portions to a pair of upper portions of the steel pipes every two spans such that the couplers formed on the lower portion of the connecting steel pipes can be inserted into the upper portions of the steel piles to be coupled thereto; d) coupling a center girder between end girders of adjacent girder-integrated coping portions; and e) placing a PC slab on an upper portion of the girders.

Description

BACKGROUND OF THE INVENTION Field of the Invention [0001] The present invention relates to a bridge construction method using a girder integral type coping portion,

The present invention relates to a bridge construction method using a girder-integrated type coping portion which can easily match the height of a pier without cutting a steel pipe file by minimizing high-level work by joining a connecting steel pipe with a girder pre- It is about the method.

Bridges, bicycles, etc. installed for pedestrians and bicycles can be constructed in such a manner that the upper structure such as the girder and the bottom plate is assembled on top of the steel pipe file after the steel pipe file is inserted into the ground.

When such members such as a girder or a bottom plate are prefabricated and assembled in the field, there is an advantage that the quality of the member is excellent, the bridge can be constructed quickly, and the air can be shortened.

However, in the case where the ground condition is not uniform or a bridge is installed at a slope such as an inclined surface, it is difficult to adjust the penetration depth of the steel pipe pile so that it is difficult to directly construct the upper member.

That is, since the upper level of a plurality of steel pipe files inserted in the ground are different from each other, the upper level should be uniformly cut after the level of each steel pipe file is measured, and the upper member should be constructed.

However, since such a cutting operation is performed at a high speed, there is a disadvantage that the work is troublesome and the safety risk of the worker is followed.

In addition, since the operation of joining the upper member to the upper end of the steel pipe file after the cutting of the steel pipe file is also performed at a high temperature, there is a problem that the workability and field applicability are poor.

KR 10-1034185 B1

In order to solve the above problems, it is an object of the present invention to provide a method of constructing a bridge using a girder integral type coping unit capable of constructing an upper structure on a steel pipe file without cutting the upper end of a steel pipe file.

According to a preferred embodiment of the present invention, there is provided a method of manufacturing a steel pipe, comprising the steps of: (a) installing a plurality of steel pipe files on a ground; (b) fabricating a plurality of girder-integrated type copings on the ground, wherein the girders are coupled between two connecting steel pipes with a coupling hole protruding from the bottom and the end girders are connected to the outside of the connecting steel pipe; (c) coupling the girder integral type coping portion to the upper portion of the pair of steel pipe piles, one across each span, so that the coupling portion of the lower portion of the connecting steel pipe is inserted into the upper portion of the steel pipe pile; (d) joining a center girder between the end girders of adjacent girder integral copings; And (e) mounting a PC slab on top of the girder; The present invention provides a bridge construction method using a girder integral type coping unit.

According to another preferred embodiment of the present invention, the upper level of each steel pipe file is measured after the step (a), and in the step (b), the length of the connecting steel pipe is cut according to the upper level of the measured steel pipe file, A method for constructing a bridge using a girder integral type coping unit, wherein the girder integral type coping unit is manufactured such that the height of the upper surface is constant when the integral type coping unit is installed.

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According to another preferred embodiment of the present invention, the fitting hole is a fixed steel pipe inserted into the lower end of the connecting steel pipe to be coupled to the inner side surface of the connecting steel pipe, and the upper end is fixed to the inside of the fixed steel pipe, And a guide portion formed to extend from the lower end of the connecting steel pipe so as to protrude to the lower portion of the connecting steel pipe.

According to another preferred embodiment of the present invention, there is provided a bridge construction method using a girder integrated type coping unit, wherein a simple rate is provided between the connecting steel pipe and the fixed steel pipe.

According to another preferred embodiment of the present invention, a bracket for supporting a lower surface of a PC slab is coupled to both side surfaces of the girder, thereby providing a bridge construction method using a girder integral type coping unit.

According to another preferred embodiment of the present invention, the PC slab is formed with protrusions on both sides of the slab, and a stepped concrete is placed on the upper surface of the PC slab after the step (e). Provides a bridge construction method.

According to another preferred embodiment of the present invention, the steel pipe file is attached to an angle adjusting part between the steel pipe file and the connecting steel pipe, the angle adjusting part is provided in the vertical direction, the upper end is coupled to the lower part of the connecting steel pipe, A vertical steel pipe joined to the upper end of the steel pipe file and a bending steel pipe bent at the same angle as the steel pipe file to be inserted into the upper portion of the steel pipe file and vertically formed so as to be inserted into the lower portion of the vertical steel pipe, The present invention provides a bridge construction method using a girder integral type coping unit.

The present invention has the following effects.

First, the bridges can be constructed by a simple process by joining the connecting steel pipes with the girders beforehand at the top of the steel pipe file supported on the ground. Therefore, the air can be shortened by pre-manufacturing the member, and the workability can be improved by minimizing the high-level work.

Second, according to the level of the plurality of steel pipe files, the length of the connecting steel pipe of the integrated girder integral coping portion coupled to the upper portion can be adjusted to join the girder integral coping portion to the upper portion of the steel pipe file. Therefore, high workability can be minimized, including cutting the top of a steel pipe file, thereby improving workability and safety.

Third, if the PC slab used as the bridge deck is supported on the brackets connected to both sides of the girder, it is possible to construct the PC slab bridge without additional guard. Therefore, it is possible to reduce the effort and time required for the construction work such as the maintenance work and the formwork, and thus the workability and the economical efficiency are excellent.

Fourth, when a pile is formed on both sides of the PC slab, a half PC concrete slab is placed on the PC slab in the lower part and overlay concrete in the upper part. Do.

Fifth, in the case where the steel pipe file is inclined, it is possible to adjust the upper surface of the girder integral type coupling unit to be horizontal by connecting an angle adjusting unit between the steel pipe pipe and the connecting steel pipe.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a view showing a step (a) of a bridge construction method using a girder integral type coping portion according to the present invention.
2 is a view showing a step (b) of a bridge construction method using a girder integral type coping portion according to the present invention.
3 is a view showing the step (c) of the bridge construction method using the girder integral type coping portion of the present invention.
4 is a view showing a step (d) of a bridge construction method using a girder integrated type coping unit according to the present invention.
5 is a view showing the step (e) of the bridge construction method using the girder integral type coping portion of the present invention.
6 is a perspective view showing a coupling relationship between a steel pipe file and a connecting steel pipe by a coupling hole;
7 is a perspective view showing an embodiment of a coupling member coupled to a connecting steel pipe;
8 is a cross-sectional view showing a coupling relationship between the coupling steel pipe and the coupling hole shown in Fig. 7;
9 is a perspective view showing an embodiment of a girder integral type coping portion.
10 is a cross-sectional view showing an embodiment of a bridge using the girder integral type coping portion shown in Fig.
11 is a perspective view showing an embodiment of a PC slab;
12 is a cross-sectional view showing a coupling relationship between a steel pipe pipe joined by the angle adjusting portion and a connecting steel pipe.

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

1 to 5 are views showing steps of each step of a bridge construction method using a girder integral type coping portion according to the present invention.

The present invention will be described in detail with reference to Figs. 1 to 5. Fig.

As shown in Fig. 1, the present invention begins with (a) a step of installing a plurality of steel pipe files 2 on a ground 1 so as to be spaced apart from each other.

The steel pipe piles (2) are provided on the ground 1 in a spaced relation to each other along the longitudinal direction of the bridge.

The steel pipe 2 may be inserted into the perforation hole 11 after the perforation hole 11 is formed by perforating the ground 1 with the perforation equipment.

The inside of the steel pipe (2) can be reinforced by filling with a filler concrete.

The lower end of the steel pipe pile 2 is fixed to the ground 1 to transmit the load of the upper structure to the ground 1.

As shown in FIGS. 2 and 6, (b) a residence hood 32 is connected between two connecting steel pipes 31 in which a coupling hole 35 is formed at the lower part, A plurality of girder integral type coping portions 3 each of which is combined with the end portion girders 33 are produced on the ground.

2 shows a perspective view of the girder integral type coping portion 3 in which the residence hanger 32 and the end girder 33 are connected to each other between a pair of connecting steel pipes 31 and on the outside thereof.

The residential deck 32 is coupled to connect the neighboring connecting steel pipe 31.

2, a through hole into which the connecting steel pipe 31 is inserted is formed so as to pass through the connecting steel pipe 31, It is also possible.

In FIG. 2, the H-shaped steel is used as the residence hull 32 and the end girder 33, but members having various cross-sectional shapes other than the H-shaped steel can be used.

When the H-shaped steel girder is used as the girder, the reinforcing plate 311 can be coupled to the connecting steel pipe 31 at the position where the upper and lower flanges of the H-shaped steel girder are engaged.

Then, as shown in FIGS. 3 and 6, (c) the girder integral type coping portion 3 is inserted into the upper portion of the steel pipe pile 2 so that the coupling hole 35 at the lower portion of the connecting steel pipe 31 is inserted Connect one span one above the pair of steel pipe files (2).

At this time, the girder integrated type coffering part 3 assembled on the ground can be mounted on the upper part of the steel pipe pile 2 by being poured by a piling machine such as a mobile crane.

The connecting steel pipe 31 may be made to have the same diameter as the steel pipe pile 2 and joined to the steel pipe pile 2 by butting welding.

It is preferable that grooves are formed in the lower end of the connecting steel pipe 31 and the upper outer corner of the steel pipe 2 for the butt welding of the connecting steel pipe 31 and the steel pipe pile 2. [

In the step (c), the connecting steel pipe 31 having the girders 32 and 33 connected to the upper end thereof is joined to the upper end of the steel pipe filament 2 so that the connecting steel pipe 31 can be joined without cutting the upper ends of the plurality of steel pipe filings 2 separately. I.e., the height of the bridge, can be easily adjusted.

Next, as shown in Fig. 4 (d), the center girder 34 is engaged between the end girders 33 of the adjacent girder integral type coping portion 3. As shown in Fig.

Accordingly, in the case of using the present invention, only the center girder 34 is installed between the girder integrated coping portions 3 adjacent to each other in the field by previously bonding the girder on the ground with the girder integrated type coping portion 3 on which the bridge bottom plate is mounted Thereby minimizing field high work.

Finally, as shown in FIG. 5 (e), the PC slab 4 is mounted on the upper portion of the girders 32, 33, and 34.

The upper level of each steel pipe 2 is measured after the step (a), and the length of the connecting steel pipe 31 is cut according to the upper level of the measured steel pipe 2 in the step (b) The girder integrated type coping portion 3 can be manufactured such that the height of the upper surface is constant when the girder integrated type coping portion 3 is installed.

Thus, the upper end of each steel pipe 2 is not cut off to align the levels of the plurality of steel pipe files 2, but the length of the connecting steel pipe 31 of the integrated girder- So that the height of the upper surface of the girder integral type coping portion 3 can be adjusted.

Therefore, it is possible to minimize the high-level work in the field.

6 is a perspective view showing a coupling relationship between a steel pipe file and a connecting steel pipe by a coupling hole.

6, a coupling hole 35 is formed at a lower portion of the connecting steel pipe 31 so that the coupling hole 35 is inserted into the upper portion of the steel pipe 2, File (2).

The girder integral type coping portion 3 is constituted by two connecting steel pipes 31 and a housing sheath 32 and an end girder 33. The girder integral copping portion 3 is placed on the upper portion of the steel pipe pile 2 by the shearing machine.

In this case, if the connecting steel pipe 31 is welded to the upper end of the steel pipe 2, it may be difficult to precisely align the center of the steel pipe 2 with the center of the connecting steel pipe 31.

Therefore, a coupling hole 35 is formed at the lower portion of the connecting steel pipe 31 so that the coupling hole 35 is inserted into the upper end of the steel pipe 2 to be connected to each other. So that it can be easily adjusted.

The coupling hole 35 may be formed to be inclined to the side of the connection pipe 35 so that the width of the connection hole 35 becomes narrower from the upper portion to the lower portion.

FIG. 7 is a perspective view showing an embodiment of a coupling member coupled to the connecting steel pipe, and FIG. 8 is a cross-sectional view showing the coupling relationship between the connecting steel pipe and the coupling member shown in FIG.

7 and 8, the coupling port 35 includes a fixed steel pipe 351 inserted into the lower end of the connecting steel pipe 31 and coupled to an inner surface of the connecting steel pipe 31, The upper portion may be configured to be fixed to the inside of the fixed steel pipe 351 and the lower portion may be formed as a tapered portion to guide the lower portion of the connecting steel pipe 31 to a guide portion 352.

In other words, the coupling hole 35 is composed of a fixed steel pipe 351 and a cross-shaped guide portion 352 whose upper portion is located inside the fixed steel pipe 351.

At this time, the fixed steel pipe 351 may be formed of a cylindrical steel pipe depending on the inner diameter of the connecting steel pipe 31 so that the coupling hole 35 is inserted into the lower end of the connecting steel pipe 31 and fixed thereto.

The fixed steel pipe 351 can be welded to the inside of the connecting steel pipe 31.

The guide part 352 is coupled to the inside of the fixed steel pipe 351 such that the upper part and the lower part are located inside the fixed steel pipe 351 and outside the fixed steel pipe 351, And is tapered so as to become tapered toward the bottom, so that the coupling hole 35 can be easily inserted into the steel pipe 2.

As shown in FIG. 8, a simple rate 36 may be provided between the connecting steel pipe 31 and the fixed steel pipe 351.

In order for the fixed steel pipe 351 of the coupling hole 35 to be inserted into the connecting steel pipe 31, the outer diameter of the fixed steel pipe 351 should be less than the inner diameter of the connecting steel pipe 31.

However, if the inner diameter of the connecting steel pipe 31 and the outer diameter of the fixed steel pipe 351 are the same, it may be difficult to join the connecting steel pipe 31 and the fixed steel pipe 351.

Therefore, the outer diameter of the fixed steel pipe 351 is formed to be slightly smaller than the inner diameter of the connecting steel pipe 31 so that the fixed steel pipe 351 can be easily inserted into the connecting steel pipe 31 while considering the manufacturing error and the installation error, So that the simple rate 36 is inserted into the remaining space between the connecting steel pipe 31 and the coupling port 35.

The simplicity 36 may be a cylindrical shape having one side cut out with a thin plate, or may be a plate divided into a plurality of plates.

Since the outer diameter of the fixed steel pipe 351 is smaller than the inner diameter of the steel pipe pipe 2, the fixed steel pipe 351 may be inserted into the steel pipe pipe 2 by protruding to a predetermined length below the connecting steel pipe 31 . In this case, the portion of the fixed steel pipe 351 inserted in the steel pipe pile 2 serves to temporarily fix the girder integrated type coping portion 3 to the steel pipe pile 2.

9 is a perspective view showing an embodiment of a girder integral type coping portion.

9, brackets 5 for supporting the lower surface of the PC slab 4 can be coupled to both sides of the girders 32, 33, and 34. As shown in FIG.

That is, the bracket 5 can be coupled to both sides of the dwelling hangers 32, the end girder 33, or the center girder 34. [

The brackets 5 are coupled to each other at both sides of the girder so as to be spaced apart from each other along the longitudinal direction of the girder so as to support the lower portion of the PC slab 4.

The bracket 5 can be directly coupled to the side surface of the connecting steel pipe 31 at a portion where the bracket 5 meets the connecting steel pipe 31.

When the length of the end girder 33 is short, the bracket 5 may not be provided on the end girder 33.

The bracket 5 is constructed to have a sufficient length in accordance with the width of the PC slab 4 to stably support the PC slab 4 mounted thereon.

Therefore, since the PC slab 4 can be directly mounted on the upper portion of the bracket 5, a separate support for supporting the PC slab 4 is not needed, thereby saving time and effort required for the installation work.

9, the brackets 5 are welded to both sides of the housing hanger 32 which is an H-shaped steel, but the shape of the housing hanger 32 and the bracket 5 can be variously configured.

The bracket 5 may be coupled to the girder after the step (c) for installing the girder integrated type coping portion 3 and the step (d) for installing the center girder 34. However, It is preferable to join the girder to the ground in advance.

Fig. 10 is a cross-sectional view showing an embodiment of a bridge using the girder integral type coping portion shown in Fig. 9, and Fig. 11 is a perspective view showing an embodiment of a PC slab.

10 and 11, the PC slab 4 has protrusions 41 protruding upward from both sides of the PC slab 4, and after the step (e) The concrete 6 can be poured.

The jaws 41 are protruded above the PC slab 4 to prevent the concrete from flowing down outside the PC slab 4. [ Therefore, when the overburdened concrete 6 is laid later on the PC slab 4, it is not necessary to provide a separately formed mold on the side of the PC slab 4.

The jig 41 may be integrally formed with the PC slab 4 so as to be positioned on both sides of the PC slab 4. [

The jaw 41 of the casting slab 41 is formed higher than the upper surface of the overwritting concrete 6 so as to maintain the functions of a rail fixing table and storm drain prevention.

The upper surface of the PC slab 4 may be provided with a spacing member 42 for positioning the upper surface thereof. The spacing member 42 can be formed by placing a reinforcing bar made of C-shape on the upper part of the PC slab 4.

The spacers 42 also serve as shear connectors to integrate the PC slabs 4 and the overwritting concrete 6 together.

Since the PC slab 4 can be manufactured to have a thickness equal to or smaller than the thickness of the required bridge slab considering the height of the overburden concrete 6 to be laid later, the weight of the PC slab 4 can be reduced. In addition, since it can be assembled and installed on site in the factory in advance, it is possible to shorten the air and improve the quality, and there is no need to install the lower guard in the lower part.

The overburden concrete 6 is laid on the upper surface of the PC slab 4.

Therefore, it is possible to minimize the burden of the PC slab 4 by minimizing the bottom thickness of the PC slab 4, placing the PC slab 4 on the floor, and placing the overburdened concrete 6 on the floor.

A plurality of shear reinforcing bars may be embedded on the upper surface of the PC slab 4 so as to protrude upward to integrate with the overwritting concrete 6.

As shown in FIG. 11, a jaw 43 may protrude upward from both ends of the PC slab 4 in the longitudinal direction.

A plurality of the PC slabs 4 may be positioned adjacent to each other along the longitudinal direction of the bridge.

At this time, when the construction of some of the PC slabs 4 is completed, the end curtains are provided at both ends of the PC slabs 4 in the longitudinal direction so as to selectively install the overwritting concrete 6 only on the PC slabs 4, ) Can be formed.

The end shroud 43 may be integrally formed with the PC slab 4 such that the jaw 43 is positioned at both ends of the PC slab 4 in the longitudinal direction.

The step 43 may be formed to have the same level as that of the overwritting concrete 6.

The jaw 43 of the end film can serve as a leveling rod for the concrete that is placed in the field.

12 is a cross-sectional view showing a coupling relationship between a steel pipe pipe joined by the angle adjusting portion and a connecting steel pipe.

12, an angle adjusting unit 7 is coupled between the steel pipe 2 and the connecting steel pipe 31 in the steel pipe file 2, The upper end of the vertical steel pipe 71 is coupled to the lower end of the connecting steel pipe 31 and the lower end of the vertical steel pipe 71 is coupled to the upper end of the steel pipe 2. The upper end of the vertical steel pipe 71 is inserted And the lower portion may be composed of a bending steel pipe 72 bent at the same angle as that of the steel pipe 2 so as to be inserted into the upper portion of the steel pipe 2.

That is, when the pile of the steel pipe 2 is obliquely inclined, that is, when the pile is inclined, the angle adjusting portion 7 is coupled between the steel pipe pile 2 and the connecting steel pipe 31, The top surface can be adjusted to be horizontal.

The upper and lower ends of the vertical steel pipe 71 are connected to the lower portion of the connecting steel pipe 31 and the upper end of the steel pipe pipe 2, Lt; / RTI >

The connecting steel pipe 31, the vertical steel pipe 71, the vertical steel pipe 71 and the steel pipe pile 2 can be joined by butting welding.

The lower end of the vertical steel pipe 71 can be cut at the same angle as the upper end of the steel pipe pile 2. [

The bent steel pipe 72 is configured such that the upper and lower portions thereof are inserted into the vertical steel pipe 71 and the steel pipe pipe 2, respectively.

At this time, a simple rate can be coupled between the bent steel pipe 72 and the vertical steel pipe 71.

The outer diameter of the bending steel pipe 72 is formed to be slightly smaller than the inner diameter of the vertical steel pipe 71 so that the bending steel pipe 72 can be easily inserted into the vertical steel pipe 71 while taking manufacturing errors and work errors into account. The simple rate can be inserted into the remaining space between the bending steel pipe 72 and the vertical steel pipe 71.

When the coupling pipe 35 is provided at the lower part of the connecting steel pipe 31, the coupling pipe 35 may be inserted into the upper part of the vertical steel pipe 71 and coupled therewith.

1: ground 11: perforated hole
2: steel pipe file 3: girder integral type coping portion
31: connecting steel pipe 311: reinforcing steel plate
32: house more 33: end girder
34: center girder 35:
351: Fixed steel pipe 352: Guide part
36: Simplicity 4: PC slab
41: a putting film jaw 42:
43: end film jaw 5: bracket
6: Overburdened concrete 7:
71: vertical steel pipe 72: bending steel pipe

Claims (8)

(a) installing a plurality of steel pipe files (2) on a ground (1) so as to be spaced apart from each other;
(b) a plurality of girder integrated coils (34) each having a connecting wall (33) formed by joining a dwelling (32) between two connecting steel pipes (31) Fabricating the pinging portion 3 on the ground;
(c) The pair of steel pipe filaments 2, one by one across one span, is inserted into the upper portion of the steel pipe pile 2 so that the coupling hole 35 at the lower portion of the connecting steel pipe 31 is inserted into the upper portion of the steel pipe pile 2. [ Coupling to the top;
(d) joining the center girder (34) between the end girders (33) of the adjacent girder integrated coping (3); And
(e) placing a PC slab (4) above the girders (32, 33, 34); Wherein the girder-integrated type coping unit is installed on the girder.
The method of claim 1,
After the step (a), the upper level of each steel pipe file 2 is measured,
In the step (b), the length of the connecting steel pipe 31 is cut according to the measured upper level of the steel pipe pile 2 so that the girder integrated coping portion 3 is formed so that the height of the girder- Wherein the girder-integrated type coping portion is formed on the girder.
delete The method of claim 1,
The fitting hole 35 is formed by a fixed steel pipe 351 inserted into the lower end of the connecting steel pipe 31 and coupled to the inner side surface of the connecting steel pipe 31, And a guide part (352) fixed to the bottom of the connecting steel pipe (31) and formed to be tapered downward to the bottom of the connecting steel pipe (31).
5. The method of claim 4,
Wherein a simple rate (36) is provided between the connecting steel pipe (31) and the fixed steel pipe (351).
The method of claim 1,
Wherein a bracket (5) for supporting a lower surface of the PC slab (4) is coupled to both sides of the girders (32, 33, 34).
The method of claim 1,
A step 41 is protruded on both sides of the PC slab 4 and a stepped concrete 6 is placed on the upper surface of the PC slab 4 after the step (e) A bridge construction method using an integral type coping part.
The method of claim 1,
The angle adjusting unit 7 is coupled between the steel pipe 2 and the connecting steel pipe 31 so that the angle adjusting unit 7 is installed vertically and the upper end is connected A vertical steel pipe 71 coupled to the lower end of the steel pipe 31 and coupled to the upper end of the steel pipe pipe 2 and an upper portion vertically formed to be inserted into the lower portion of the vertical steel pipe 71, And a bending steel pipe (72) bent at the same angle as the steel pipe pipe (2) so as to be inserted into the upper part of the steel pipe pipe (2).

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