KR101705002B1 - Prefabricated double composite plate girder bridge and its construction method - Google Patents

Prefabricated double composite plate girder bridge and its construction method Download PDF

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KR101705002B1
KR101705002B1 KR1020160041126A KR20160041126A KR101705002B1 KR 101705002 B1 KR101705002 B1 KR 101705002B1 KR 1020160041126 A KR1020160041126 A KR 1020160041126A KR 20160041126 A KR20160041126 A KR 20160041126A KR 101705002 B1 KR101705002 B1 KR 101705002B1
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South Korea
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plate
girders
girder
precast
reinforced concrete
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KR1020160041126A
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Korean (ko)
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김근택
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김선곤
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    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D2/00—Bridges characterised by the cross-section of their bearing spanning structure
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D22/00—Methods or apparatus for repairing or strengthening existing bridges ; Methods or apparatus for dismantling bridges
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D2101/00—Material constitution of bridges
    • E01D2101/20—Concrete, stone or stone-like material
    • E01D2101/24—Concrete
    • E01D2101/26—Concrete reinforced
    • E01D2101/28—Concrete reinforced prestressed
    • E01D2101/285—Composite prestressed concrete-metal

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Bridges Or Land Bridges (AREA)

Abstract

The present invention relates to a composite double plate girder bridges and a method of constructing the same, and more particularly, to a composite bridge girder bridges capable of enhancing the midpoint stiffness of a plate girder by composing reinforced concrete at a central point portion of a plate girder This makes it possible to prevent the plate girder from being twisted and to prevent the plate girder from being horizontally projected, and to prevent the plate girder from twisting, A double composite plate girder bridges and a method of construction thereof.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a double composite plate girder bridge,

The present invention relates to a prefabricated double composite plate girder bridge and a method of constructing the same, and more particularly, to a prefabricated double composite plate girder bridge which is constructed by combining reinforced concrete at a central point portion of a plate girder, A double composite plate girder bridges and a method of construction thereof.

In general, bridges are divided into upper structure and lower structure. The upper structure is composed of girder, bottom plate, etc., and the lower structure means shift and pier which serve to safely transfer the load acting on the upper structure to the ground. do.

In bridge construction, it is important to widen the span to reduce the number of piers and to reduce the weight of the superstructure. This directly affects the construction cost and construction period.

In order to widen the girder and reduce the girth of the steel girder, research and efforts have been made to lower the parentage at the point where the girder is connected to the lower girder.

In Korean Patent No. 10-0946716, a partition member is disposed inside a wall (alternating), and a wall and a girder are integrated by concrete at a fulcrum portion to guide a moment to a central portion of the bridge, However, in the above patent, a dividing member must be separately installed inside the wall, and a process of integrating the wall and the girder into concrete must be performed. Therefore, Construction cost and construction period are lengthened, and the effect of dispersion of moment is insufficient.

In Korean Patent No. 10-0547485, steel bars are connected to both side ends of an upper flange of a girder, a steel bar is inserted into a permanent fixing block, and a steel bar fixture installed in a pair of temporary fixing blocks installed at a central portion, Sequential bridges and methods of construction. However, the above-mentioned patent also has a disadvantage in that the construction cost is increased as well as the construction cost due to the connection of the iron pipes, the insertion of the steel rods, and the provision of the steel rod fixing holes.

In order to solve the above problem, in Korean Patent No. 10-1594370, a separate lower beam is provided under the I beam girder at the central position where the moment is generated, We are going to reduce the moment.

However, in the above-mentioned prior art, since a separate lower beam has to be connected to the lower part of the girder, there has been a problem that the overall shape and weight of the girder increase.

SUMMARY OF THE INVENTION It is an object of the present invention to solve the above-mentioned problems of the prior art, and it is an object of the present invention to improve the rigidity of the center portion of the plate girder by composing the reinforced concrete at the central point portion of the plate girder, A double composite plate girder bridge capable of preventing the twisting of the plate girder and eliminating the lateral pressing at the central point portion of the plate girder and applying the precast deck to the rapid construction, Method.

According to an aspect of the present invention, there is provided a bridge structure comprising: a plurality of plate girders installed on a lower structure of a bridge and spaced apart from each other by a predetermined distance in a transverse direction of a bridge; a precast deck installed on an upper portion of the plurality of plate girders; And reinforced concrete reinforced with the rigidity of the plate girder by being combined with the lower portions of the plurality of plate girders.

A plate girder manufacturing step of fabricating a plate girder by synthesizing reinforced concrete on the lower flange of the plate girder; and a plate girder mounting step of mounting the plate girder on the lower structure of the bridge, A reinforcing concrete joint step of integrally joining the reinforcing concrete of the plurality of plate girders to each other through a joint means, and a precast deck installing step of installing a precast deck on the upper part of the plurality of plate girders .

The method may further include a step of preparing a plate girder for composing the reinforced concrete so as to integrally connect the lower flanges of the plurality of plate girders spaced apart from each other at a predetermined interval and a plurality of plate girders integrated through the reinforced concrete on the lower structure of the bridge And a precast bottom plate mounting step for mounting the precast bottom plate on the upper portion of the plurality of plate girders.

According to the present invention, it is possible to improve the stiffness at the mid-point of the plate girder by combining the reinforced concrete at the mid-point portion of the plate girder in which the large moment occurs, thereby reducing the deformability and weight of the plate girder, It is possible to prevent the twisting of the girder and to eliminate the lateral pressing on the central point portion of the plate girder.

Further, by reinforcing the reinforced concrete at both ends of the plate girder, it is possible to further improve the stiffness at both ends of the plate girder, thereby further preventing twisting of the plate girder.

The plate girder can be prevented from twisting and buckling by supporting the precast deck on the plate girder and fixing the plate girder laterally by securing it with a fixing device.

In addition, rapid construction is possible by applying precast deck.

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a perspective view of a composite double composite girder bridge according to the present invention,
Figure 2 is a side view of a composite double composite plate girder bridge according to the present invention,
3 is a sectional view taken along line AA and BB in Fig. 2,
4 is a view showing a construction method of a composite double composite plate girder bridge according to the present invention,
5 is a view showing a first embodiment of a composite double composite plate girder bridge according to the present invention,
6 is a view showing a second embodiment of the assembled double composite plate girder bridge according to the present invention,
7 is a view showing a third embodiment of the assembled double composite plate girder bridge according to the present invention,
8 is a view of a fastening device in a composite double composite plate girder bridge according to the present invention.

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

As shown, the assembled double composite plate girder bridge 10 according to the present invention comprises a plate girder 20, a precast bottom plate 30, and a reinforced concrete 40.

The plate girder 20 is composed of an I beam 21 having flanges 22 and 23 at upper and lower portions thereof and is installed on the lower structure 1 of the bridge.

The bridge is divided into an upper structure and a lower structure. The upper structure is composed of a girder and a bottom plate, and the lower structure includes a shift and a bridge which serve to safely transfer the load acting on the upper structure to the ground .

The plate girders 20 are spaced apart from each other by a predetermined distance in the transverse direction (width direction) of the bridges. That is, the plate girders 20 are spaced from each other and installed in a plurality of rows.

In addition, a plurality of the plate girders 20 of the plurality of rows are connected to each other in the longitudinal direction (longitudinal direction) of the bridge. At this time, the plurality of plate girders 20 are bolted to each other in the longitudinal direction of the bridge.

On the other hand, the plate girder 20 has a front end connecting member 25 protruding from the upper end thereof.

The precast deck 30 is mounted on the upper portion of the plurality of plate girders 20.

The front cast bottom plate 30 is formed with a front end pocket 31 through which the front end coupling member 25 of the plate girder 20 is inserted.

The precast deck 30 is fixed to the shear connection member 25 by using the precast deck 30 to fix the precast deck 30 in a horizontal direction so as to connect the upper portions of the plurality of plate girders 20 laterally. Device 26 is installed.

The lower part of the plurality of plate girders 20 is connected and supported by the reinforced concrete 40 before the precast deck 30 and the plate girder 20 are combined and the upper part of the plurality of plate girders 20 And is connected and supported by the precast bottom plate 30 to prevent the plate girder 20 from twisting and buckling.

The fixing device 26 includes a fixing member 27 engaged with the upper end of the front end connection member 25 and a fixing member 27 fitted to the upper surface of the precast bottom plate 30, A fixing plate 28 and a fixing nut 29 screwed to the fixing member 27 to fix the fixing plate 28.

Meanwhile, a concrete injection hole (not shown) may be formed in the fixing plate 28 so that the concrete can be inserted into the front end pocket 31 to be synthesized.

Therefore, after the precast deck 30 is mounted on the upper end of the plate girder 20, the precast deck 30 is fixed to the fixing device 26, that is, The fixing operation of the fixing device 26 is continued while the fixing device 30 is sequentially mounted.

Thereafter, the concrete is installed in the front end pocket 31 to synthesize the plate girder 20 and the precast bottom plate 30. After curing and curing, the fixing nut 29 is released to separate the fixing plate 28, and the fixing member 27 protruded above the precast bottom plate 30 is cut.

When the precast deck 30 is fixed through the fixing device 26 before the plate girder 20 and the precast deck 30 are combined, the precast deck 30 is used The plate girder 20 can be supported laterally and the twisting and buckling of the plate girder 20 can be prevented before the plate girder 20 and the precast bottom plate 30 are cured and cured .

In addition, rapid construction is possible by applying precast deck.

The reinforced concrete 40 is synthesized only on the lower portion of the plurality of plate girders 20 spaced apart in the transverse direction of the bridge to connect the plurality of plate girders 20 and reinforce the rigidity of the plate girder 20. [

The reinforced concrete 40 may be composed of three embodiments.

First, the first embodiment of the reinforced concrete 40 may be separately synthesized with the lower flange 23 of the plurality of plate girders 20 as shown in FIG. At this time, reinforced concrete (40) synthesized at the lower part of the plurality of plate girders (20) is also spaced apart from each other.

Also, the reinforced concrete 40 is synthesized so as to enclose the plate girder 20, that is, the lower flange 23 of the I beam 21.

In the meantime, in the first embodiment, the reinforced concrete 40 is preliminarily synthesized on the plate girder 20, and the reinforced concrete 40 is seated on the lower structure 1.

The second embodiment of the reinforced concrete 40 may further include a composite portion 41 synthesized separately from the lower flange 23 of the plurality of plate girders 20, And a joining means (45) for joining the respective composing portions (41) of the joining members (20).

The combining section 41 is synthesized so as to enclose the plate girder 20, that is, the lower flange 23 of the I beam 21.

The combining portion 41 of each of the plate girders 20 extends a predetermined length toward the combining portion 41 of the neighboring plate girders 20. Between the combining portions 41 of the plate girders 20, The spacing means 45 is spaced apart from the space to be provided.

The joining means 45 includes a loop reinforcing portion 46 protruding from the opposing side surfaces of the respective composing portions 41 and a space 42 in which the loop reinforcing portions 46 between the composing portions 41 are disposed And a joining part 47 to be combined with the joining part 47.

Of course, reinforcing rods are installed in each of the composing parts 41, and the reinforcing bars and the loop reinforcing rods 46 are integrally connected.

When the composite portion 41 and the joining means 45 are installed on the plurality of plate girders 20 as in the second embodiment, the lower portion of the plurality of plate girders 20 is integrally formed by the reinforced concrete 40 As shown in FIG.

In the second embodiment, the composite portion 41 is preliminarily synthesized on the plate girder 20 and is placed on the lower structure 1. At this time, on the side of the composite portion 41, 46). Thereafter, in a state where the plate girder 20 is seated on the lower structure 1, concrete is inserted into the space of the loop reinforcing portion 46 to join the combining portion 41 of each plate girder 20.

Next, as shown in FIG. 7, the third embodiment of the reinforced concrete 40 is constructed by integrally connecting a plurality of plate girders 20 spaced apart from each other in the transverse direction of the bridge.

In the third embodiment, a plurality of plate girders 20 are first placed on the upper end of the lower structure 1, and then the lower portions of the plurality of plate girders 20 spaced from each other in the width direction of the bridge are integrally connected The reinforced concrete 40 is synthesized.

Although the plurality of plate girders 20 are mounted on the lower structure 1 and then the reinforced concrete 40 is synthesized in the above description, reinforced concrete 40 is synthesized at the lower part of the plurality of plate girders 20 at the factory or field A plurality of plate girders 20 integrated with a crane can be lifted up to be mounted on the lower structure 1. [

In the meantime, all the first to third embodiments can be fabricated in a factory or field, and a structure in which a reinforced concrete 40 is combined with a single plate girder 20 or a structure in which a plurality of plate girders 20 are reinforced The structure in which the concrete 40 is synthesized and integrated can be manufactured at a factory or a site, and then lifted up by a crane to be mounted on the lower structure 1.

At this time, since the reinforced concrete 40 is formed only at the position of the bridges in the plate girder 20, the weight can be reduced, so that even if a plurality of plate girders 20 are integrally formed with the reinforced concrete 40, It is easy to lift it.

The reinforced concrete 40 is provided only at the position of the bridge at the bridge girder 20.

That is, in the structure in which a plurality of plate girders 20 are connected to each other in the longitudinal direction (longitudinal direction) of the bridge, the reinforced concrete 40 is provided only at the fulcrum position connected to the lower structure 1. This can reduce the weight of the plate girder 20, the manufacturing cost, and the disclosure period.

In the structure in which a plurality of the plate girders 20 are connected to each other in the longitudinal direction of the bridge, the reinforced concrete 40 is formed at a central portion of the plate girder 20, Reinforced concrete 40a and end reinforced concrete 40b synthesized at both ends of the plurality of plate girders 20. [

Referring to FIG. 2, a plurality of plate girders 20 (three in the figure) are arranged on the lower structure 1 in the longitudinal direction of the bridge, The central reinforcing concrete 40a is synthesized at the center point of the plate girder 20 and the end reinforcing concrete 40b is synthesized at both ends of the plate girder 20 will be.

Therefore, it is possible to improve the rigidity at the midpoint of the plate girder 20 by combining the reinforced concrete 40 at the center point portion of the plate girder 20 where a large amount of momentum is generated, It is possible to prevent the plate girder 20 from being twisted and to obtain a dustproof effect, as well as to reduce the deformity and weight of the plate girder 20, .

The reinforcing concrete 40 (end reinforced concrete 40b) is also applied to both ends of the plate girder 20 to prevent twisting at both ends of the plate girder 20 and to obtain a dustproof effect .

On the other hand, when the span of the bridge is long, it is preferable to install the temporary vent 2 between the piers of the lower structure 1 when the plate girder 20 is installed.

Hereinafter, a construction method of the assembled double composite plate girder bridge according to the present invention will be described.

First, the plate girder 20 is manufactured by combining the reinforced concrete 40 with the lower flange 23 of the plate girder 20.

That is, the reinforcement concrete 40 may be synthetically produced in the plate girder 20 at a separate factory and then transported to the site or may be manufactured around the site.

As described above, the composite position of the reinforced concrete 40 in the plate girder 20 is synthesized only at the position of the fulcrum of the bridge. That is, Of course, synthesized at both end portions of the plate girder 20.

Next, a plate girder mounting step for mounting the plate girder 20 on the lower structure 1 of the bridge is performed.

At this time, a plurality of plate girders 20 are mounted at a predetermined distance from each other in the transverse direction of the bridge.

When the plate girder 20 is mounted on the lower structure 1, the plate girders 20 are lifted up by a crane. At this time, the plate girders 20 are lifted up one by one or the plate girders 20 ) Can be lifted in a state where they are connected and connected in advance.

On the other hand, after the plate girder 20 is mounted on the upper end of the lower structure 1, a plurality of plate girders 20 arranged in the longitudinal direction of the bridge are fastened and connected to each other.

In addition, when the span of the bridge is long, it is preferable to advance the plate girder after installing the temporary vent 2 in advance.

Next, the reinforcement concrete 40 of the plurality of plate girders 20 is joined to the reinforcement concrete jointing step through the jointing means 45.

The reinforced concrete coupling step is a step of integrally joining the reinforcing concrete 40 of the plurality of plate girders 20 arranged in the lateral direction of the bridge.

At this time, as the joining means 45, the reinforcing concrete 40 is integrally joined by placing concrete in a space of the loop reinforcing portion 46 protruding from the side facing each of the reinforcing concrete 40 .

That is, the joining means 45 includes a loop reinforcement 46 protruding from the side faces of the reinforcing concrete 40, that is, the combining portion 41 of each plate girder 20, And a joint joining portion 47 which is composited in a space where the loop reinforcing portion 46 between the joining portions 41 is disposed.

On the other hand, the temporary vent 2 is removed before the step of installing the precast deck to be described later.

Next, the precast deck installation step for installing the precast deck 30 on the upper portion of the plurality of plate girders 20 is performed.

The step of installing the precast deck comprises the steps of: mounting a precast deck 30 on the upper portion of the plurality of plate girders 20; placing the precast deck 30 on the plate girders 20 Securing the precast deck (30) so as to connect and support the upper portions of the plurality of plate girders (20) in the transverse direction by installing a fixing device (26) on the front end connection material (25) And after the bottom plate 30 is fixed, synthesizing the plurality of plate girders 20 and the precast bottom plate 30.

In the step of mounting the precast bottom plate 30, the front end connection member 25 of the plate girder 20 is inserted into the front end pocket 31 of the precast bottom plate 30.

In the step of fixing the precast deck 30, the fixing member 27 is joined to the upper end of the front end connection member 25 by welding or the like, the fixing plate 28 is fitted to the fixing member 27, The fixing nut 29 may be screwed to the fixing member 27. [

On the other hand, the precast deck 30 is sequentially placed on the plate girder 20, and the fixing operation is also performed through the fixing means 26. [

In this way, the precast deck 30 can be directly fixed to the fixing means 26 while being mounted on the plate girder 20, so that the plurality of plate girders 20 can be laterally supported.

In the step of synthesizing the precast deck 30, concrete is injected into the concrete pouring hole (not shown) formed in the fixed plate 28 to be synthesized. Thereafter, after the composite is cured, the fixing nut 29 is released to separate the fixing plate 28, and the fixing member 27 protruded above the precast bottom plate 30 is cut.

Meanwhile, the construction method is the construction method according to the second embodiment, and in the case of the first embodiment, the reinforced concrete joint step is omitted.

The construction method according to the third embodiment will be described with respect to only parts different from the above construction method.

First, the plate girder 20 is manufactured by combining the reinforced concrete 40 so that the lower flanges of the plurality of plate girders 20 spaced apart from each other are integrally connected.

That is, the reinforced concrete 40 is synthesized so as to integrally connect the lower flanges of the plurality of plate girders 20 spaced apart from each other in the transverse direction of the bridge, thereby integrating the plurality of plate girders 20.

7, the reinforced concrete 40 can be integrally formed with the plate girders 20 through the structure shown in FIG. 6, which is the second embodiment of the present invention.

Thereafter, a plate girder mounting step for mounting a plurality of plate girders 20 integrated through the reinforced concrete 40 on the lower structure 1 of the bridge proceeds.

That is, a plurality of plate girders 20, which are integrally formed at a factory or a site, are lifted by a crane and mounted on the lower structure 1 of the bridge.

Thereafter, a precast bottom plate installation step for installing the precast bottom plate 30 on the upper portion of the plurality of plate girders 20 is performed.

The precast deck installation step is the same as the construction method of the second embodiment.

1: Substructure 10: Girder bridge
20: Plate girder 21: I beam
25: shear connector 26: fastening device
30: precast deck
31: shear pocket 40: reinforced concrete
40a: Central reinforced concrete 40b: End reinforced concrete
41: combining section 45: connecting means
46: Loop reinforcing member 47:

Claims (13)

A plurality of plate girders (20) installed on the lower structure (1) of the bridge and spaced apart from each other in the transverse direction of the bridge,
A precast bottom plate 30 installed on the upper portion of the plurality of plate girders 20,
And reinforced concrete (40) composing only the lower portion of the plurality of plate girders (20) and connecting the plurality of plate girders (20) and reinforcing the rigidity,
The plate girder 20 has a front end connecting member 25 protruding from the upper end thereof,
The precast bottom plate 30 is formed with a front end pocket 31 through which the front end connection member 25 is inserted,
The front end connection plate 25 is provided with a fixing device for fixing the precast bottom plate 30 to support the upper portions of the plurality of plate girders 20 in the lateral direction using the precast bottom plate 30 26,
The fixing device 26 includes a fixing member 27 engaged with the upper end of the front end connection member 25 and a fixing member 27 fitted to the upper surface of the precast bottom plate 30, A fixing plate 28 and a fixing nut 29 screwed to the fixing member 27 to fix the fixing plate 28,
The lower part of the plurality of plate girders 20 is connected and supported by the reinforced concrete 40 before the precast deck 30 and the plate girder 20 are combined and the upper part of the plurality of plate girders 20 is connected to the precast And is connected and supported by a bottom plate (30) to prevent twisting and buckling of the plate girder (20). The method according to claim 1,
Wherein the reinforced concrete (40) is provided only at a position of the bridge at the bridge girder (20). 3. The method of claim 2,
Wherein the reinforced concrete (40) is formed by integrally connecting a plurality of plate girders (20) spaced apart from each other in the transverse direction of the bridges. 3. The method of claim 2,
The plurality of plate girders 20 are composed of an I beam 21 having flanges 22 and 23 at upper and lower portions thereof,
The reinforced concrete (40) is synthesized to wrap the lower flange (23) of the I beam (21). 5. The method of claim 4,
The reinforced concrete (40)
A combining section 41 which is separately synthesized with the lower flange 23 of the plurality of plate girders 20,
And a joining means (45) for joining the respective composite portions (41) of the plurality of plate girders (20). 6. The method of claim 5,
The joining means 45 includes a loop reinforcing portion 46 protruding from the opposing side surfaces of the respective composing portions 41 and a space 42 in which the loop reinforcing portions 46 between the composing portions 41 are disposed And a joint joining portion (47) formed on the joining portion. 3. The method of claim 2,
A plurality of plate girders (20) are connected to each other in the longitudinal direction of the bridges,
The reinforced concrete 40 includes a central reinforced concrete 40a synthesized at a central point portion of a plurality of plate girders 20 connected in the longitudinal direction of the bridge and an end portion 40a formed at both ends of the plate girder 20 And the reinforced concrete (40b). delete delete A plate girder fabricating step of fabricating the plate girder 20 by combining the reinforced concrete 40 with the lower flange of the plate girder 20,
A plate girder mounting step of mounting the plate girder (20) on a lower structure (1) of a bridge, wherein the plate girders (20)
A reinforced concrete joint step of integrally joining reinforcing concrete (40) of the plurality of plate girders (20) through a jointing means (45)
And installing a precast deck (30) on top of the plurality of plate girders (20)
The precast deck installation step includes:
Placing a precast deck (30) on top of the plurality of plate girders (20)
After mounting the precast deck 30, a fixing device 26 is installed on the front end connecting members 25 of the plurality of plate girders 20 to connect the upper portions of the plurality of plate girders 20 in the lateral direction Fastening the precast deck 30 to support the precast deck 30,
After the precast deck 30 is fixed, synthesizing the plurality of plate girders 20 and the precast deck 30,
The fixing device 26 includes a fixing member 27 engaged with the upper end of the front end connection member 25 and a fixing member 27 fitted to the upper surface of the precast bottom plate 30, A fixing plate 28 and a fixing nut 29 screwed to the fixing member 27 to fix the fixing plate 28,
The lower part of the plurality of plate girders 20 is connected and supported by the reinforced concrete 40 before the precast deck 30 and the plate girder 20 are combined and the upper part of the plurality of plate girders 20 is connected to the precast Wherein the plate girder (20) is connected and supported by a bottom plate (30) to prevent twisting and buckling of the plate girder (20). A plate girder fabricating step of fabricating a plate girder 20 by combining the reinforced concrete 40 so as to integrally connect the lower flanges of the plurality of plate girders 20 spaced apart from each other by a predetermined distance,
A plate girder mounting step of mounting a plurality of plate girders 20 integrated through the reinforced concrete 40 on the lower structure 1 of the bridge,
And installing a precast deck (30) on top of the plurality of plate girders (20)
The precast deck installation step includes:
Placing a precast deck (30) on top of the plurality of plate girders (20)
After mounting the precast deck 30, a fixing device 26 is installed on the front end connecting members 25 of the plurality of plate girders 20 to connect the upper portions of the plurality of plate girders 20 in the lateral direction Fastening the precast deck 30 to support the precast deck 30,
After the precast deck 30 is fixed, synthesizing the plurality of plate girders 20 and the precast deck 30,
The fixing device 26 includes a fixing member 27 engaged with the upper end of the front end connection member 25 and a fixing member 27 fitted to the upper surface of the precast bottom plate 30, A fixing plate 28 and a fixing nut 29 screwed to the fixing member 27 to fix the fixing plate 28,
The lower part of the plurality of plate girders 20 is connected and supported by the reinforced concrete 40 before the precast deck 30 and the plate girder 20 are combined and the upper part of the plurality of plate girders 20 is connected to the pre- Wherein the plate girder (20) is connected and supported by a bottom plate (30) to prevent twisting and buckling of the plate girder (20). delete delete
KR1020160041126A 2016-04-04 2016-04-04 Prefabricated double composite plate girder bridge and its construction method KR101705002B1 (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018190444A1 (en) * 2017-04-13 2018-10-18 김선곤 Prefabricated double composite plate girder bridge and construction method therefor
KR102032941B1 (en) 2019-03-26 2019-10-16 김명신 Double composite plate girder bridge
CN113403945A (en) * 2020-12-29 2021-09-17 长沙理工大学 Construction method of steel-concrete composite beam cable-stayed bridge
KR102641328B1 (en) * 2023-07-25 2024-02-27 주식회사 브리콘 Apparatus for temporarily fixing precast concrete slab panels

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101055856B1 (en) * 2009-08-31 2011-08-09 주식회사 승화이엔씨 Girder integrated double plate and temporary bridge using the same
KR20120053869A (en) * 2010-11-18 2012-05-29 한국건설기술연구원 Bridge construction method using precast end-block with girder connection member
KR20160012672A (en) * 2014-07-25 2016-02-03 김근택 Precast modular bridge and its construction method

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101055856B1 (en) * 2009-08-31 2011-08-09 주식회사 승화이엔씨 Girder integrated double plate and temporary bridge using the same
KR20120053869A (en) * 2010-11-18 2012-05-29 한국건설기술연구원 Bridge construction method using precast end-block with girder connection member
KR20160012672A (en) * 2014-07-25 2016-02-03 김근택 Precast modular bridge and its construction method

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018190444A1 (en) * 2017-04-13 2018-10-18 김선곤 Prefabricated double composite plate girder bridge and construction method therefor
KR102032941B1 (en) 2019-03-26 2019-10-16 김명신 Double composite plate girder bridge
CN113403945A (en) * 2020-12-29 2021-09-17 长沙理工大学 Construction method of steel-concrete composite beam cable-stayed bridge
KR102641328B1 (en) * 2023-07-25 2024-02-27 주식회사 브리콘 Apparatus for temporarily fixing precast concrete slab panels

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