KR101582878B1 - Precast Concrete Panel For Bridge Slab Including Cantilever Part And Construction Method Of Bridge Slab Using The Same - Google Patents

Precast Concrete Panel For Bridge Slab Including Cantilever Part And Construction Method Of Bridge Slab Using The Same Download PDF

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Publication number
KR101582878B1
KR101582878B1 KR1020150119032A KR20150119032A KR101582878B1 KR 101582878 B1 KR101582878 B1 KR 101582878B1 KR 1020150119032 A KR1020150119032 A KR 1020150119032A KR 20150119032 A KR20150119032 A KR 20150119032A KR 101582878 B1 KR101582878 B1 KR 101582878B1
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South Korea
Prior art keywords
panel
cantilever
inner panel
girder
mortar
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KR1020150119032A
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Korean (ko)
Inventor
최영국
장인희
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주식회사 거송
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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
    • E01D19/00—Structural or constructional details of bridges
    • E01D19/12—Grating or flooring for bridges; Fastening railway sleepers or tracks to bridges
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D19/00—Structural or constructional details of bridges
    • E01D19/12—Grating or flooring for bridges; Fastening railway sleepers or tracks to bridges
    • E01D19/125—Grating or flooring for bridges
    • 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
    • E01D2101/00—Material constitution of bridges
    • E01D2101/20—Concrete, stone or stone-like material
    • E01D2101/24—Concrete
    • E01D2101/26—Concrete reinforced
    • E01D2101/268—Composite 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 precast panel for a bridge slab and a method of constructing a bridge slab using the same, wherein the outer panel is separated from the inner panel, one side of the inner panel is connected to the outer cantilever panel, So that it is possible to effectively control the deflection and cracks of the panel and to easily adjust both side ends of the panel to be fixed points in accordance with the construction error generated when the girder is installed through the movable type fixing block And a cantilever portion having a cantilever portion for minimizing the weight and size of the panel and enlarging the condition of the bridge slab which can be constructed by separately forming the inner panel and the outer cantilever panel, Precast concrete panels and Is a bridge slab construction methods to provide.
In order to achieve the above object, the present invention is characterized in that a cantilever section is formed at one end of a girder located at the outermost side and a cantilever panel mortar injection section supporting a side end of a neighboring panel is formed, An outer cantilever panel integrated with a neighboring panel through pouring; An inner panel body having one end on one end of the outer cantilever panel and the other end on an adjacent girder of the outermost girder and having a plurality of slot holes; An inner panel mortar injection part for forming a space in which the mortar is poured, a fixed fastening block formed on a lower surface of one side of the inner panel body and closely attached to the other side of the outer cantilever panel, And a movable locking block movably installed through the slot hole of the inner panel body at a lower portion of the other side end of the inner panel body to closely contact the side surface of the girder, And a panel; and a precast concrete panel for a bridge slab including a cantilever portion That it relates to the bridge slab construction method and to its technical base.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a precast concrete panel for a bridge slab including a cantilever portion and a method for constructing a bridge slab using the same.

The present invention relates to a precast concrete panel for a bridge slab including a cantilever portion and a method of constructing a bridge slab using the same, wherein the outer cantilever panel and the inner panel are separated from each other so that one side of the inner panel is connected to the outer cantilever panel, And the outer side cantilever panel is separately formed. Then, by joining the inner panel and the outer cantilever panel, it is possible to obtain not only a straight bridge but also a curved portion like a curved bridge The present invention relates to a precast concrete panel for a bridge slab including a cantilever part applicable to a section and a method of constructing a bridge slab using the precast concrete panel.

Generally, bridge construction is accomplished by first completing a bridge substructure such as an alternating or piercing bridge, installing a girder in the longitudinal direction (longitudinal direction) on the alternating and / or pierched bridge, A plurality of bridges are installed on the outside of the girders, and a bridge slab formwork is installed on the bridges.

Next, the final slab of the bridge slab is completed by placing the reinforcing bars in the longitudinal and transverse directions inside the bridge slab formwork and casting the bridge slab concrete. The work for the bridge slabs and the bridge slab formwork, Of the bridge slabs and bridge slabs for the bridge slabs are required to pay attention to the safety management because they are accompanied by the complaints. It is inevitable that the construction of the bridge slab is deteriorated and the air (construction period) is delayed because of its very low cost.

In order to solve the problem of the above-mentioned on-site concrete, a precast panel is installed in the case of the internal span between the girder and the girder, and a slab is placed on the precast panel. However, the outer cantilever portion protruding outward from the outermost girder is free It is impossible to construct by the casting method, and thus it is inevitable to construct the concrete by using the above-mentioned casting method.

In order to solve such a problem, a precast panel having an inner side and an outer side integrally formed by expanding an inner bottom plate to an outer bottom plate in the form of a cantilever is constructed as disclosed in Japanese Patent Laid-Open No. 10-1101208.

However, these precast panels are heavy in weight and large in size, and the installation efficiency is lowered at the time of installation, and it is difficult to apply the bridge slabs to a standard transverse gradient or a curved bridge other than a straight bridge.

Patent No. 10-1101208

According to an aspect of the present invention, there is provided a cantilever panel comprising: a cantilever panel having a first side and a second side, the first side being connected to the first cantilever panel, The panel can be effectively controlled to prevent sagging and cracking and to facilitate the construction of both sides of the panel so as to correspond to the construction error occurring during the construction of the girder through the movable fixing block, A precast concrete panel for a bridge slab including a cantilever portion for enlarging the condition of a bridge slab that can be constructed by separately forming an inner panel and an outer cantilever panel, and minimizing the weight and size of the panel, In providing a method of constructing a bridge slab using the same All.

According to an aspect of the present invention, a cantilever section is formed at one end of a girder located at an outermost side of the girder, and the other end of the cantilever section is connected to one end of a neighboring panel An outer cantilever panel supporting the cantilever panel mortar injection part formed in a stepped shape and integrated with the neighboring panel through the mortar pouring; An inner panel body having one end on one end of the outer cantilever panel and the other end on an adjacent girder of the outermost girder and having a plurality of slot holes; An inner panel mortar injection part for forming a space in which the mortar is poured, a fixed fastening block formed on a lower surface of one side of the inner panel body and closely attached to the other side of the outer cantilever panel, And a movable locking block movably installed through the slot hole of the inner panel body at a lower portion of the other side end of the inner panel body to closely contact the side surface of the girder, And a panel.

The outer cantilever panel further includes a cantilever panel body having a concave insertion groove formed at a lower portion of the cantilever panel so as to be placed on an upper portion of the outermost girder; A shear connector exposing part formed on the cantilever panel body so that a shear connector disposed on an upper portion of the girder is exposed; A cantilever panel mortar injecting unit formed on the upper end of one side of the cantilever panel body so as to be integrated with the inner panel through injection of mortar; And a seating part protruding laterally from one end of the cantilever panel body to allow a neighboring panel to be placed thereon.

In addition, the front end connector exposed portion is a plurality of exposure holes formed to pass through the cantilever panel body up and down.

In addition, the shear connector exposing unit may be formed by separating the cantilever panel body from the outer body and the inner body, and connecting the separated outer body and the inner body with the connecting rod through the connecting rod.

The movable retaining block may include: a block body installed at a lower portion of the inner panel body; A bolt portion having one end embedded in the block body and the other end inserted through the slot hole and protruding from an upper surface of the inner panel body; And a nut part which is fastened to the bolt part and can be fixed at a designed position of the block body.

And a mortar injection groove formed in the upper portion of the block body so as to be recessed in the periphery of the bolt portion so that the mortar inserted to fill the slot hole is fixed after the position of the movable fastening block is filled to integrate the movable fastening block into the inner panel body. And further comprising:

A cantilever panel joint reinforcement which is exposed so as to extend from the inside of the outer cantilever panel to the cantilever panel mortar injection part so as to enable jointing between the outer cantilever panel and the inner panel, And an inner panel joint reinforcement connected to the cantilever panel joint reinforcement.

And a shear connection member formed to be exposed to the upper portion of the inner cantilever panel and the inner panel so as to improve the coupling force between the outer cantilever panel and the concrete laid down when the bottom plate of the bridge is formed.

Further, a sidewall part serving as a mold for pouring concrete is further formed at one side edge of the outer cantilever panel.

A connecting panel body having both ends thereof placed on the girders located on the inner side of the outermost girder and having a slot hole formed on one side thereof, And a connection panel which is formed on the lower surface of the other side of the connecting panel body and is fixedly attached to the side surface of the girder.

According to another aspect of the present invention, there is provided an external cantilever panel mounting method for mounting an external cantilever panel to an upper portion of an outermost girder; An inner panel mounting step for mounting one end of the inner panel to the seating portion of the outer cantilever panel and the other end for seating on the upper portion of the girder adjacent to the outermost girder; An inner panel fixing step of fixing both ends of the inner panel by moving the movable retaining block of the inner panel on the slot hole and fixing the inner retaining block in close contact with the side surface of the inner side girder; A panel connecting step of injecting mortar into the cantilever panel mortar injection part and the inner panel mortar injection part to integrate the two panels; And a slab concrete casting step of casting concrete on top of the outer cantilever panel and the inner panel to form a slab of a bridge.

As described above, according to the present invention, both sides of the panel placed on the upper part of the girder are restrained in the vertical direction and the horizontal direction to constitute the fixing point, so that the deflection and the crack of the panel can be effectively controlled.

In addition, since the inner panel can be stably installed in response to a construction error occurring at the time of construction of the girder through the movable latch block, the seamability is very excellent.

In addition, since the outer cantilever panel and the inner panel are separately constructed and jointed, it is possible to minimize the step between the two sides of the upper surface of the girder due to the slope of the bridge slab, so that the construction can be performed in construction and curved bridge considering the slope section, And the size is minimized, thereby improving the efficiency of construction.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a view showing an installation state of an outer cantilever panel and an inner panel according to the present invention,
2 is a front view showing an outer cantilever panel according to the first embodiment of the present invention,
3 is a plan view of the outer cantilever panel according to the first embodiment of the present invention,
4 is a front view of an outer cantilever panel according to a second embodiment of the present invention.
5 is a plan view of an outer cantilever panel according to a second embodiment of the present invention,
6 is a perspective view showing an inner panel according to the present invention,
7 is a front view showing an inner panel according to the present invention,
8 is a plan view showing an inner panel according to the present invention,
9 is a side sectional view showing an inner panel according to the present invention,
10 is a cross-sectional view showing a movable type locking block according to the present invention,
11 is a view illustrating an installation state of the connection panel according to the present invention,

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a cantilever panel according to an embodiment of the present invention; FIG. 2 is a perspective view of a cantilever panel according to an embodiment of the present invention; (10) having one end fixed to the outer cantilever panel (100) and the other end disposed on the outermost girder (10), the inner cantilever panel (100) Panel 200 as shown in FIG.

2 is a front view of an outer cantilever panel according to a first embodiment of the present invention, FIG. 3 is a plan view of an outer cantilever panel according to the first embodiment of the present invention, and FIG. 4 is a cross- Fig. 5 is a plan view of an outer cantilever panel according to a second embodiment of the present invention, and Fig. 5 is a plan view showing an outer cantilever panel according to the second embodiment of the present invention.

The outer cantilever panel 100 includes a cantilever panel body 110 having a concave insertion groove 113 formed at an upper portion of the outermost girder 10, A front end connector exposing part 160 formed on the cantilever panel body 110 so that a shear connection member protruding from the upper part of the cantilever panel body 110 may be exposed to the upper part of the cantilever panel body 110, A cantilever panel mortal injection unit 120 formed to be stepped on the cantilever panel body 110 so as to be integral with the inner panel 200 through injection of mortar and a cantilever panel mortal injection unit 120 protruding laterally from one end of the cantilever panel body 110, And a seat part 130 for allowing the seat 200 to be placed.

The outer cantilever panel 100 further includes a sidewall part 150 that serves as a mold when the slab concrete is laid to form the bottom piece of the bridge, and provides a space in which the pillar of the rail is inserted.

The side wall part 150 is vertically formed at the other upper end of the cantilever panel body 110. The side wall part 150 serves as a mold in the process of installing the slab concrete after the panels are disposed, Of the support structure.

1 and 2, the front end connector exposed portion 160 may include a plurality of exposure holes 161 formed to penetrate the cantilever panel body 110 upward and downward.

The cantilever panel body 110 is divided into an outer body 111 and an inner body 112 and the separated outer body 111 and the inner body 112 are connected to each other by a connecting rod And a space portion 162 formed in the area between the connecting rods 114. [0035]

At this time, the cast iron muscle 170 embedded in the cantilever panel body 110 is exposed in the space 162.

When the shear connection member 160 is formed through the space portion 162 formed between the connecting rods 114, the space portion 162 is very wide. Therefore, in the process of constructing the outer cantilever panel 100, 10 can be more easily installed through the space portion 162 even if a slight installation error occurs in the process of exposing the front end connection material formed on the upper portion of the space portion 162 to the space portion 162. [

Meanwhile, the inner panel 200 is placed on one side of the seating portion 130 of the outer cantilever panel 100 and the other side of the inner panel 200 is placed on the outer side of another girder 10 adjacent to the outermost girder 10 An inner panel mortar injection part 220 formed in a stepped shape so as to be able to inject mortar into an upper part of one side of the inner panel body 210, A fixing block 240 which is provided on the lower surface and is brought into close contact with a side surface of the seating part 130 and a fixing block 240 installed on the side of the inner side of the girder 10, And a movable latching block 230 which is closely attached.

The other end of the inner panel body 210 is formed with a slot hole 211 in the longitudinal direction of the inner panel 200 and the movable hooking block 230 is inserted through the slot hole 211 of the inner panel 200 Even if a construction error occurs in the process of arranging the girder 10, the movable hooking block 230 is moved and fixed so as to fit the required position, so that both ends of the inner panel 100 are fixed at the condition of the fixing point To be satisfied.

6 and 10, the movable latching block 230 includes a block body 231 installed at a lower portion of the inner panel body 210 and a latching block 231 having one end embedded in the block body 231, A bolt portion 232 inserted through the slot hole 211 formed in the panel body 210 and protruding from the upper surface of the inner panel body 210 and a block body 232 fastened to the bolt portion 232, And a nut portion 233 for fixing the nut 231.

The washer 234 is inserted into the bolt 232 before the nut 233 is installed to prevent the inner panel body 210 from being broken and the coupling force to be improved when the nut 233 is tightened, 233 to fix the block body 231.

The washer 234 may be fastened to the bolt 232 or may be formed in the form of a plate having a plurality of bolt holes as shown in FIG. 6 and may be integrally fastened to the plurality of bolts 232 .

Since the movable latching block 230 located at the other side of the inner panel body 210 is movable in the process of disposing the inner panel 200 in the process of disposing the inner panel 200, 230 are not in close contact with the side surface of the girder 10 positioned inside, the movable holding block 230 is moved through the slot hole 211 and closely adhered to the side surface of the girder 10, The two points of the panel 200 exert the fixing point condition effectively to prevent cracking or sagging.

On the other hand, the mortise is injected into the slot hole 211 and is filled tightly so that the movable holding block 230 fixed to the proper position can be more firmly fixed.

Meanwhile, the movable latching block 230 is recessed from the upper part of the block body 231 to the periphery of the bolt part 232, thereby forming a mortar injection groove 235 for filling the mortar injected into the slot hole 211 .

Since the mortar injection groove 235 is further formed on the block body 231, the mortar inserted to fill the slot hole 211 is filled up to the mortar injection groove 235, The inner panel body 210 is integrated with the lower part of the inner panel body 210, so that a more rigid installation is possible.

The outer cantilever panel 100 and the inner panel 200 are mounted such that the cantilever panel mortar injection unit 120 and the inner panel mortar injection unit 220 are opposed to each other and the cantilever panel mortar injection unit 120 and the inner panel 200, The mortar is injected into the mortar injection unit 220 and integrated with each other.

The cantilever panel mortar reinforcement 140 is inserted into the cantilever panel mortar injection unit 120 and the inner panel mortar reinforcement 140 is inserted into the inner panel mortar injection unit 220. [ 250) is deployed.

The cantilever panel joint reinforcement 140 and the inner panel joint reinforcement 250 are connected to reinforcing bars disposed inside the outer cantilever panel 100 and the inner panel 200 and are connected to the cantilever panel mortar injecting part 120 and the inner panel mortar 250. [ The cantilever panel joint mortar 140 and the inner panel joint reinforcement 250 are connected to each other so as to overlap each other. The cantilever panel mortar injector 120 and the inner panel mortar injector 220 are connected to each other. The outer cantilever panel 100 and the inner panel 200 are integrated by injecting the mortar 500 into the cavity 220.

Meanwhile, the upper end of the outer cantilever panel 100 and the inner panel 200 are further provided with a shear connection member 400 so that the shear connection member 400 is exposed so that the binding force with the concrete placed when the bottom plate of the bridge is formed.

The shear connection member 400 may have a separate stirrup structure, or may be installed in various forms such as a method of installing a lattice bar or a steel beam.

11 is a view illustrating an installation state of the connection panel according to the present invention. In the present invention, when the width of a bridge is increased, the number of installed girders 10 is increased. As a result, At least two girders 10 may be installed between the adjacent girders 10, and a connecting panel 300 for connecting adjacent inner girders 10 is further provided.

The connection panel 300 includes a connection panel body 310 having both ends thereof disposed on adjacent inner girders 10 and formed with a slot hole at one side thereof and a connecting panel body 310 at a lower side of one side of the connection panel body 310, 310 of the connecting panel body 310 so as to be brought into close contact with the side surface of the girder 10 and the other side end surface of the connecting panel body 310, And a fixed engaging block 300 which is in close contact with the engaging portion.

The movable latching block 310 is a movable latching block 320 which is the same as the movable latching block 230 installed on the inner panel 200 and the movable latching block 320 is moved A slot hole is formed.

Meanwhile, the process of constructing the slab of the bridge using the precast panel of the present invention having the above-described structure includes the steps of installing the outer cantilever panel, installing the inner panel, fixing the inner panel, connecting the panel, .

The outer cantilever panel 100 is mounted on the upper portion of the outermost girder 10 through the fitting groove 113 so that the seating portion 130 is positioned on the inner side of the girder 10 And the outer cantilever panel 100 is installed so as to face the outer cantilever panel 100.

In the inner panel mounting step, one end of the inner panel 200 is placed on the seating portion 130 of the outer cantilever panel 100 and the other end of the inner panel 200 is positioned on the outermost side of the girder 10 So as to be seated on the upper part.

At this time, the inner panel 200 is installed to face the cantilever panel mortar injection unit 120 of the outer cantilever panel 100, and the inner panel mortar injection unit 220 is installed at the other end of the inner panel 200 The movable retaining block 230 is installed in a state of being assembled.

Meanwhile, in the inner panel fixing step, the fixed engaging block 240 provided on one side of the lower side of the inner panel 200 is brought into close contact with the side surface of the seating part 130 to fix one side end of the inner panel 200, The movable latching block 230 provided in the inner panel body 210 is moved through the slot hole 211 formed in the inner panel body 210 so as to be brought into close contact with the side surface of the girder 10 and then tightened by the nut portion 233, So that the other side end of the guide plate is fixed.

At this time, a mortise is injected into the slot hole 211 to secure the movable holding block 230 moved to a desired position. The mortar is inserted into the mortar injection groove 235 formed in the block body 231, So that the movable latching block 230 is integrated with the lower portion of the inner panel 200.

With the provision of the movable latching block 230, both ends of the inner panel 200 can be fixed at fixed points in accordance with a construction error occurring when the girder 10 is disposed.

The cantilever panel mortar reinforcement 140 of the outer cantilever panel 100 and the inner panel joint reinforcement 250 of the inner panel 200 are connected to each other so that the cantilever panel mortar reinforcement 140 And the inner panel mortar injection unit 220 are integrated with each other.

Meanwhile, the slab concrete pouring step is a process of forming a slab of a bridge by placing reinforcing bars on the upper part of the outer cantilever panel 100 and the inner panel 200 arranged as described above, and pouring concrete into the slab concrete.

According to the present invention configured as described above, both sides of the panel placed on the upper side of the girder 10 are constrained in the vertical direction and the horizontal direction to constitute the fixing point, so that the deflection and cracking of the panel can be effectively controlled.

Also, the inner panel 200 can be installed so that both ends are fixed in accordance with a construction error occurring when the girder 10 is installed through the movable latching blocks 230 and 320.

In addition, since the outer cantilever panel 100 and the inner panel 200 are separately formed and jointed, the steps between the two sides of the upper surface of the girder are minimized by the slope of the bridge slab, Weight and size are minimized and the efficiency of construction is improved.

It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined in the appended claims and their equivalents. Of course, such modifications are within the scope of the claims.

(10): girder (100): outer cantilever panel
(110): Cantilever panel body (111): Outer body
(112): inner body (113): fitting groove
(114): connecting rod (120): cantilever panel mortar injection part
(130): seat part (140): cantilever panel joint
(150): side wall portion (160): shear connector Exposed portion
(161): Exposure hole (162): Space part
(170): cast iron rope (200): inner panel
(210): inner panel body (211): slot hole
(220): inner panel mortar injection part (230): movable jam block
(231): a block body (232): a bolt portion
(233): Nut portion (234): Washer
(235): Mortar injection groove (240): Fixed fastening block
(250): inner panel joint reinforcement (300): connecting panel
(310): connecting panel body (320): movable retaining block
(330): Fixed Joint Block (400): Shear Connector
(500): mortar

Claims (11)

And a cantilever section is formed at one end of the girder and a cantilever panel mortar injection section supporting the one end of the adjacent panel is formed at the other end to form a cantilever panel mortar injection section integrated with the neighboring panel Outer cantilever panel;
An inner panel body having one end on one end of the outer cantilever panel and the other end on an adjacent girder of the outermost girder and having a plurality of slot holes; An inner panel mortar injection part for forming a space in which the mortar is poured, a fixed fastening block formed on a lower surface of one side of the inner panel body and closely attached to the other side of the outer cantilever panel, And a movable locking block movably installed through the slot hole of the inner panel body at a lower portion of the other side end of the inner panel body to closely contact the side surface of the girder, And a panel. The precast concrete panel for a bridge slab includes a cantilever portion. The method according to claim 1,
Wherein the outer cantilever panel comprises:
A cantilever panel body having a concave-shaped fitting groove formed at a lower portion thereof so as to be placed on an upper portion of an outermost girder;
A shear connector exposing part formed on the cantilever panel body so that a shear connector projecting from the upper part of the girder is exposed;
A cantilever panel mortar injecting unit formed on the upper end of one side of the cantilever panel body so as to be integrated with the inner panel through injection of mortar;
And a seating part protruding laterally from one end of the cantilever panel body to allow a neighboring panel to be laid on the cantilever panel body. 3. The method of claim 2,
Wherein the shear connector exposing portion includes:
Wherein the cantilever panel body is a plurality of exposure holes formed to pass through the cantilever panel body up and down. 3. The method of claim 2,
Wherein the shear connector exposing portion includes:
Wherein the cantilever panel body is divided into an outer body and an inner body, and the separated outer body and the inner body are connected to each other through a connecting rod, and the cantilever panel body is formed in a region between the connecting rods. Cast concrete panel. The method according to claim 1,
The movable jam block includes:
A block body installed at a lower portion of the inner panel body;
A bolt portion having one end embedded in the block body and the other end inserted through the slot hole and protruding from an upper surface of the inner panel body;
And a nut portion which is fastened to the bolt portion and fixed at a designed position of the block body. The precast concrete panel for a bridge slab including the cantilever portion. 6. The method of claim 5,
And a mortar injection groove formed in the upper portion of the block body so as to be recessed in the periphery of the bolt portion so that the mortar inserted to fill the slot hole is injected after fixing the position of the movable fastening block to integrate the movable fastening block into the inner panel body And a cantilever portion formed on the cantilever portion. The method according to claim 1,
The cantilever panel joint reinforcing bars exposed to extend from the inside of the outer cantilever panel to the cantilever panel mortar injection part so as to allow the joint between the outer cantilever panel and the inner panel to be exposed and the inner panel mortar to be extended from the inside of the inner panel body to the inner panel mortar injection part And an inner panel joint reinforcing bar connected to the cantilever panel joint reinforcing bars. The precast concrete panel for a bridge slab including the cantilever part. The method according to claim 1,
And a shear connection member formed to be exposed to an upper portion of the outer cantilever panel and the inner panel so as to improve a coupling force between the outer cantilever panel and the concrete placed at the time of forming the bottom plate of the bridge. Cast concrete panel. The method according to claim 1,
And a side wall part serving as a form for pouring concrete is further formed at one side edge of the outer cantilever panel. The method according to claim 1,
A connecting panel body having both ends thereof disposed on the girders located on the inner side of the outermost girder and having a slot hole formed on one side thereof and a slotted hole formed in a lower portion of one side of the connecting panel body through slot holes of the connecting panel body And a connecting panel formed on the lower surface of the other side of the connecting panel body and fixed to the side surface of the girder so as to be in close contact with the side surface of the girder. Precast Concrete Panel for.
An outer cantilever panel mounting step for mounting an outer cantilever panel according to any one of claims 1 to 10 on an upper portion of a girder located at an outermost position;
An internal panel mounting method comprising: an inner panel mounting step of mounting one side end of an inner panel according to any one of claims 1 to 10 on a seating part of the outer cantilever panel and the other end to an upper part of a girder adjacent to the outermost girder;
An inner panel fixing step of fixing both ends of the inner panel by moving the movable retaining block of the inner panel on the slot hole and fixing the inner retaining block in close contact with the side surface of the inner side girder;
A panel connecting step of injecting mortar into the cantilever panel mortar injection part and the inner panel mortar injection part to integrate the two panels;
And a slab concrete pouring step of pouring concrete on top of the outer cantilever panel and the inner panel to form a slab of a bridge. The method for constructing a bridge slab using a precast concrete panel for a bridge slab including the cantilever part.
KR1020150119032A 2015-08-24 2015-08-24 Precast Concrete Panel For Bridge Slab Including Cantilever Part And Construction Method Of Bridge Slab Using The Same KR101582878B1 (en)

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KR1020150119032A KR101582878B1 (en) 2015-08-24 2015-08-24 Precast Concrete Panel For Bridge Slab Including Cantilever Part And Construction Method Of Bridge Slab Using The Same

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Publication number Priority date Publication date Assignee Title
KR100938876B1 (en) * 2007-11-08 2010-01-27 (주)대우건설 Stay-in-place precast concrete panel
KR101101208B1 (en) 2011-06-03 2012-01-04 (주) 효성 Precast deckplate for cantilever construction and slab construction method using the same
KR101175940B1 (en) * 2010-11-22 2012-08-22 한국건설기술연구원 Connecting Structure and Connecting Method of UHPC Precast Slab Using Steel Bar at Zero Bending Moment Points
JP5129022B2 (en) * 2008-05-26 2013-01-23 公益財団法人鉄道総合技術研究所 Fixing device for track deck
KR101395129B1 (en) * 2013-11-25 2014-05-15 (주) 효성 Precast panel and slab construction method using the same

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100938876B1 (en) * 2007-11-08 2010-01-27 (주)대우건설 Stay-in-place precast concrete panel
JP5129022B2 (en) * 2008-05-26 2013-01-23 公益財団法人鉄道総合技術研究所 Fixing device for track deck
KR101175940B1 (en) * 2010-11-22 2012-08-22 한국건설기술연구원 Connecting Structure and Connecting Method of UHPC Precast Slab Using Steel Bar at Zero Bending Moment Points
KR101101208B1 (en) 2011-06-03 2012-01-04 (주) 효성 Precast deckplate for cantilever construction and slab construction method using the same
KR101395129B1 (en) * 2013-11-25 2014-05-15 (주) 효성 Precast panel and slab construction method using the same

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