KR20190053670A - Bridge drainage system and construction method using the same - Google Patents

Abstract

The present invention relates to a bridge drainage system applied to an L type panel and a construction method thereof, wherein the system includes a drainage assembly, a drainage guide tube, a support frame, a support rod and a drain to be capable of stably maintaining a seating state of the drain seated and installed on an outer side of a bridge slab, thereby being capable of enhancing durability of a structure for drainage, on the other hand, the system including the drainage assembly, the drainage guide tube, the support frame, the support rod and the drain is applied such that one side is buried in the bridge slab and a protective wall in a state that the one side is fixatedly caught at an upper end of a precast panel, whereas a free upper end, which is an end of the other side, seats the drain at an upper part of the other side of the support frame supported by the support rod to simplify a construction structure supporting the drain to maintain the seating state, thereby being capable of conveniently constructing the bridge drainage system applied to the L type panel.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bridge drainage system,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bridge drainage system applied to an L-shaped panel and a construction method thereof, and more particularly to a bridge drainage system including a drainage assembly, a drainage guide pipe, a support frame, Can be stably maintained, thereby enhancing the durability against the structure for drainage, while applying a system including a drainage assembly, a drainage guide tube, a support frame, a support rod, and a drainage passage, And the drainage passage is seated on the other side of the support frame where the upper end of the free end, which is the other end, is supported by the support rods, so as to keep the drainage passage in a state of being installed in the bridging slab and the barrier wall A simple construction of the supporting structure can be realized, and through this, the bridge drainage system Construction of the bridge drainage system that is applied to the L-shaped panel to be made easily and relates to the construction method.

Generally, a drainage system is applied to a bridges so that excellent rainfall or the like can be discharged at the time of rainfall. Such bridging and drainage systems generally include perforations formed by perforating a slab of a bridge so that an excellent storm can be easily discharged, A drainage path including a drain pipe buried in the longitudinal direction of the bridge slab is applied.

In other words, the drainage channel applied to the conventional bridge drainage system as described above is such that the bridges of the bridge slabs are collected through the perforation and drain pipe, and then discharged to the lower portion of the bridge.

However, the drainage system of existing bridges which drill the slabs and embed the drain pipes in the perforations as described above causes structural durability of the slabs to be degraded, and the drain pipes are clogged by foreign materials such as soil introduced into the storm There is a problem that drainage can not proceed smoothly.

In addition, even if the inside of the drain pipe is to be cleaned, it is impossible to find a blocked part from the outside, so maintenance and inspection work is very inconvenient. To compensate for this, it is necessary to form a slab including a drain pipe again after damaging the slab, And the like.

On the other hand, in order to solve all the problems of the existing bridging drainage system in which a slab of a bridge as described above is drilled and a drain pipe is buried in the perforated portion, Patent Document 1 (Registered Patent Registration No. 0889995, March 16, 2009, There is disclosed a drain pipe for bridges and a construction method thereof.

As shown in Patent Document 1 (registered in Korean Registered Patent No. 0889995, Mar. 16, 2009, Registered), a bridging drain pipe and a construction method thereof are structurally improved in durability by reducing damage to a slab, The mounting part for connecting the drainage part on one side to the drainage part on the other side and the drainage part on the other side for the outside is connected to the lower end of the drainage part installed in the barrier wall in line contact rather than in surface contact, And the other drainage part is structurally very unstably structured unifiedly with respect to the barrier wall. This means that when a large amount of drainage is discharged in a moment, these structures can be easily separated and broken there was.

In addition, there is a problem that the durability against the structure for draining is remarkably deteriorated according to the unstable coupling state of the mounting part and the drain part.

Furthermore, the conventional bridge drainage system is also disclosed as a bridging drainage system of a bridge as shown in Patent Document 2 (registered in Korean Registered Patent No. 1351895, Jan. 01, 2014).

The conventional brick drainage system as shown in Patent Document 2 includes a structure in which pipe support brackets are fixedly installed on the outer side of the barrier wall.

In other words, in the conventional brick drainage system as described above, after the completion of the construction for the bridge slab and the barrier wall, the pipe supporting bracket as a support capable of hanging the drain can be installed separately on the outer end side of the bridge slab, Was installed.

However, the installation of the pipe support brackets as the above supports is performed together with the perforation of the anchor bolts, thereby complicating the operation of the outside of the bridge barriers. And there is a danger that the risk is followed.

Therefore, it is possible to stably maintain the state of the drainage passage installed on the outer side of the bridge slab, thereby improving the durability against the drainage structure, and also to support the drainage passage to maintain the seating state There is a need for a research and development of a bridge drainage system which can simplify the construction construction of the bridge drainage system and simplify the construction and further install the bridge drainage path and simply install the support frame structure at the upper part of the bridge .

Registered Korean Patent No. 0889995 Mar. 19, 2009. Registration. Registered in Korea Registered Patent No. 1351895 2014.01.09 Registered. Korean Registered Patent No.1715701 issued on Jul.

In order to solve the above-mentioned problems, the present invention includes a drainage assembly, a drainage guide pipe, a support frame, a support bar, and a drainage passage, so that a drainage path stably installed on the outside of the bridge slab can be stably maintained. And to provide a bridge drainage system applied to an L-shaped panel so as to improve the durability of a structure for drainage through the bridge and a construction method thereof.

Another object of the present invention is to provide a method of installing a bridge slab and a barrier wall in a state where one side is fastened to an upper end of a precast panel by applying a system including a drainage assembly, a drainage guide pipe, a support frame, It is possible to simplify the construction structure in which the upper end of the free end, which is the other end, is supported on the other side of the support frame supported by the support bar to support the drainage path so as to maintain the installation state of the drainage passage. So that the construction can be carried out easily.

It is another object of the present invention to provide a system that includes a support frame so that a support frame structure can be easily installed at the upper portion of a bridge without the need for a separate leveling equipment when installing a drainage channel.

The present invention for achieving the above-mentioned objects is as follows. That is, in the bridge drainage system applied to the L-shaped panel according to the present invention, after one end of the precast panel is seated on the outermost girder placed on the upper part of the pier, the concrete placed on the girder and the precast panel, An upper wall is protruded from an end portion of the precast panel protruding outwardly by a predetermined length with respect to the slab so as to extend over a bridge slab, a wall and a precast panel so that the upper surface of the bridge slab drains to the outside of the bridge, A drainage assembly installed at a lower side of the barrier wall and embedded in the bridging slab at a predetermined interval in the longitudinal direction of the bridging slab so as to collect the rainwater on the upper surface of the bridge slab and guide the drainage to one side; A drainage guide pipe having one end connected to a drain hole penetrating a lower side of a collection pipe buried in the bridging slab of the drainage assembly, the drainage guide pipe passing through the precast panel and having the other end protruded outside the precast panel by a predetermined length; And the other side is projected to the outside of the precast panel and is bent and extended in a U shape so that the side of the precast panel is fixed to the end of the precast panel, A support frame closely supporting the outer surface; A support rod connecting an open upper end protruding outside the precast panel of the support frame to support a downward deflection of a free end which is an open upper end; And a drain duct installed downward from an upper portion of the support frame protruding outside the precast panel.

The supporting frame is supported by a lower end of the free end connected to the upper end portion protruding to the outside of the precast panel and opened upward by the supporting rod, And an open lower end of the lower U-shaped free end of the hook is formed with a hook portion in which the hook guide portion is inclined outwardly by a predetermined length from the lower end and a hook portion in which the hook portion is extended from the side end portion opposed to the hook guide portion of the hook portion And a support portion bent in a U-shape so that the drainage passage is seated thereon.

At this time, the support frame connects the open top end portion protruding outside the precast panel of the support frame so that the support frame can support the downward deflection of the free end of the side open, And a second latching ring is provided on a top surface of the free end which is bent while being extended from the hooking portion of the receiving portion so as to correspond to the first latching ring, It is preferable that each of the engaging hooks is engaged with the first and second engaging hooks.

In addition, it is preferable that the drainage passage is installed downward from an upper portion protruding to the outside of the precast panel of the support frame, and the lower portion is seated through the plurality of support frames.

Further, it is preferable that the drainage guide pipe is installed to be inclined at a predetermined angle downward toward the precast panel side with respect to the upper surface of the bridge slab.

In the meantime, a method of constructing a bridge drainage system applied to an L-shaped panel according to the present invention is a method of constructing a bridge drainage system applied to an L-shaped panel for constructing a bridge drainage system applied to an L-shaped panel, A step of installing a panel support for installing and fixing a plurality of panel supports at regular intervals in the longitudinal direction so as to protrude outward on the side of the outer girder; Shaped pre-cast panel is placed in the longitudinal direction of the girder so that both ends of the 'L' shaped pre-cast panel are laid across the pair of panel pedestals installed through the panel pedestal installation step, and then fixed to the upper surface of the end portions of the neighboring precast panels A pre-cast panel mounting step of fixing the panel assembly to the panel pedestal through the means; A reinforcing steel laying step of laying a reinforcing steel in a lattice shape on a top of the stone work where the lower part is embedded on the upper surface of the precast panel and the upper part is protruded by a predetermined length; A drainage assembly mounting step of fixing a lower portion of the drainage pipe of the drainage assembly to the upper side of the reinforced steel reinforced by the reinforcing steel laying step above the center portion of the precast panel; A support frame mounting step for securing a downward hook portion from the upper side of the end protruding outwardly to the side of the girder of the precast panel and providing a support frame such that the support portion extending from the hook portion is in close contact with the outer side of the precast panel; A bridge slab construction step of constructing a bridge slab through on-site concrete pouring and curing on the girder and the precast panel, and allowing one side of the support frame to be embedded; A barrier wall construction step of constructing a barrier wall so that a barrier wall protrudes between the end portion of the precast panel where the support frame is hooked and fixed and the drainage assembly so that the upper end portion of the support part of the support frame is embedded; And a drainage passage mounting step of placing the drainage passage on the support portion of the support frame.

At this time, after the step of placing and installing the drainage water, a hooking hook formed at both ends of the support rod is attached to a first hooking ring formed on the hooking portion of the support frame and a second hooking ring formed on the receiving portion of the support frame, And a supporting bar mounting step for maintaining a seating state of the supporting part of the support frame with respect to a free end of the support part without being deflected.

The effects of the bridge drainage system and the construction method applied to the L-shaped panel according to the present invention are as follows.

First, by including the drainage assembly, the drainage guide pipe, the support frame, the support bar, and the drainage passage, it is possible to stably maintain the position of the drainage passage installed on the outer side of the bridge slab, thereby improving the durability against the drainage structure .

Second, by applying a system including a drainage assembly, a drainage guide pipe, a support frame, a support bar, and a drainage channel, one side is embedded in the bridge slab and the barrier wall in a state of being fixed to the upper end of the precast panel, And the drainage path is seated on the other side of the support frame supported by the support rod to support the drainage path to maintain the seating state. Thus, the construction of the bridge drainage system applied to the L- Can be achieved easily.

Third, by applying the system including the support frame, it is possible to simply install the support frame structure at the upper part of the bridge without the need of a separate leveling equipment in the installation of the drainage channel.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a cross-sectional view showing a bridge drainage system applied to an L-shaped panel according to the present invention. FIG.
BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a bridge type drainage system, and more particularly to a bridge type drainage system.
3 is a perspective view showing a structure in which a support frame and a support bar, which are the main parts of a bridge drainage system applied to an L-shaped panel according to the present invention, are installed in a precast panel.
4 is a block diagram showing a construction method of a bridge drainage system applied to an L-shaped panel according to the present invention in order of construction flow.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of a bridge drainage system and a construction method thereof applied to an L-shaped panel according to the present invention will be described in detail with reference to the accompanying drawings.

Fig. 1 is a cross-sectional view showing a bridge drainage system applied to an L-shaped panel according to the present invention. Fig. 2 is a perspective view showing a support frame and a support bar, which are a main part of a bridge drainage system applied to an L- And FIG. 3 is a perspective view showing a structure in which a support frame and a support bar, which are the main parts of a bridge drainage system applied to an L-shaped panel according to the present invention, are installed on a precast panel.

1 to 3, the bridge drainage system applied to the L-shaped panel according to the preferred embodiment of the present invention is constructed such that one end of the precast panel 230 is seated on the outermost girder 210, An upward barrier 250 is installed at an end portion of the precast panel 230 protruding outward by a certain length with respect to a bridge slab 240 constructed through concrete pouring and curing on the girder 210 and the precast panel 230 And is installed over the bridge slab 240, the barrier wall 250, the precast panel 230, and the upper surface of the bridge slab 240 is drained to the outside of the bridge.

The bridge drainage system applied to the L-shaped panel mainly includes a drainage assembly 110, a drainage guide pipe 120, a support frame 130, a support rod 140, and a drainage passage 150.

The drainage assembly 110 is installed at one side of the lower end of the barrier wall 250 of the bridge slab 240 and is installed at a predetermined interval in the longitudinal direction of the bridge slab 240, 240) is collected and guided to one side.

The drainage assembly 110 may include a water collecting pipe 111 buried in a lower side of the barrier wall 250 of the bridge slab 240, (112).

One end of the drainage guide pipe 120 is connected to a drainage hole passing through one side of the lower portion of the collecting pipe 111 buried in the bridge slab 240 of the drainage assembly 110, And the other end protrudes outside the precast panel 230 by a predetermined length.

The support frame 130 is installed in a lower end portion of the barrier wall 250 in a state where one side of the support frame 130 is hooked and fixed to an end of the precast panel 230 in a ring shape and the other side is installed outside the precast panel 230 U "-shape, and the side portions are closely contacted and supported with the outer surface of the precast panel 230.

The support bar 140 supports an open upper end of the support frame 130 protruding outside the precast panel 230 to support the downward deflection of the open free end.

The drainage channel 150 is installed downward from an upper portion of the support frame 130 protruding outside the precast panel 230.

At this time, it is preferable that a drain hole (not shown) is formed through the drain hole 150 at a predetermined interval in the longitudinal direction, and the drain hole 150 has a predetermined distance in the bottom surface length direction and corresponds to the drain hole (not shown) It is preferable that an upper end of a discharge guide pipe (not shown) for guiding the discharge of the storm is connected.

In the bridge drainage system applied to the L-shaped panel according to the present invention having the above-described structure, in particular, the support frame 130 is provided at an open top end protruding outside the precast panel 230, 140 are connected to each other and the downward deflection of the side free end opened by the support rod 140 is supported, and it is preferable to include the hooking part 131 and the support part 135 as a rough classification.

In detail, the hooking part 131 is fixed to the end part of the precast panel 230 by fixing downwardly from the upper part, and the open end of the lower U-shaped free end is inclined outwardly from the lower end by a predetermined length The engaging guide portion 131a is formed.

That is, since the hooking part 131 is formed in the hooking part 131a, when the hooking part 131a is installed on the support frame 130, the lower end of the hooking part 131a, which is opened by the hooking guide part 131a, So that it can be easily fixed to the upper end of the vertical portion of the precast panel 130 formed in the 'L' shape.

The receiving portion 135 is bent in a U-shape while extending from a side end portion of the hook portion 131 opposite to the engaging guide portion 131a, and the drainage passage 150 is seated.

In the meantime, the bridge drainage system applied to the L-shaped panel according to the present invention including the support frame 130 having the above-described configuration is characterized in that the support rod 140 is supported by the precast panel 230 It is important to connect the open upper end projecting to the outside so as to be able to support the downward deflection of the side open end with the upper open.

The support frame 130 is provided with a first hooking ring 132 at the upper corner portion of the hooking portion 131 on which the support portion 135 extends, And a second latching ring 136 is provided on the upper surface of the free end bent from the hook 131 to correspond to the first latching ring 132.

It is preferable that the support rods 140 are provided with hooking hooks 141 and 142 which are engaged with the first and second hooking rings 132 and 136 at both ends, respectively.

In addition, in the bridge drainage system applied to the L-shaped panel according to the present invention having the above-described structure, in particular, the drainage path 150 extends from the upper portion protruding outside the precast panel 230 of the support frame 130 It is preferable that the lower portion is seated through the plurality of support frames 130.

In other words, the drainage passage 150 is open at the top and is formed long in the longitudinal direction. The drainage passage 150 is provided at a predetermined interval in the longitudinal direction of the precast panel 230, It is preferable that the lower portion is seated through a plurality of the support frames 130 to which the support frames 130 are fixed.

In addition, the drainage guide pipe 120 in the bridge drainage system applied to the L-shaped panel according to the present invention as described above is connected to the drainage pipe 111 of the drainage assembly 110 from the upper surface of the bridge slab 240, It is important that the storm water collected in the drainage guide pipe 120 can be smoothly guided toward the drainage passage 150. The drainage guide pipe 120 is connected to the precast panel 230 with reference to the upper surface of the bridge slab 240, It is preferable to be provided at a predetermined angle inclined downward.

4 is a block diagram showing a construction method of a bridge drainage system applied to an L-shaped panel according to the present invention, in order of construction flow.

4 is a view showing a construction method of a bridge drainage system applied to an L-shaped panel according to the present invention in the order of construction flow. In the following, referring to FIGS. 1 to 3, a bridge drainage system Will be described.

The method of constructing the bridge drainage system applied to the L-shaped panel according to the present invention can be roughly divided into a panel support installation step S110, a precast panel installation step S120, a reinforcing steel installation step S130, a drainage assembly installation step S140), a support frame installation step S150, a bridge slab construction step S160, a barrier wall construction step S170, and a drainage installation installation step S180.

In more detail, the step of installing the panel support (S110) includes a step of installing and fixing a plurality of panel supports 220 at predetermined intervals in the longitudinal direction so as to protrude outward at the side of the outermost girder 210 placed on the upper part of the bridge.

The panel support 220 includes a horizontal panel 221 having a fixing plate fastener 222 and a vertical panel 223.

In the pre-cast panel installation step S120, an 'L' -like precast panel 230 is attached to the girder 220 so that both ends of the panel support 220 are installed on the pair of panel supports 220 installed through the panel support installation step S110. And then fixed to the upper surface of the end portion of the neighboring precast panel 230 through the fixing means with the panel pedestal 220.

The fixing unit includes a fixing plate fixing part 222 protruding from the center of the panel supporting part 220 in the width direction to one side of the horizontal panel 221, A fixing plate 310 having both ends thereof fixed on the fixing plate 310 and a fixing bolt 310 fixed to the fixing plate 310 and having a lower end engaged with a through hole penetrating the center of the fixing plate fastener 222, And a connection nut 330 fastened to both ends of the connection bolt 320 and the connecting bolt 320.

The reinforcement step S130 is a step of arranging the reinforcing bars 410 in a lattice shape on the upper part of the stone workpiece 231 with the upper part thereof buried on the upper surface of the precast panel 230 and protruding by a predetermined length .

The drainage assembly installation step S140 may be performed on the reinforcing bars 410 disposed above the center portion of the precast panel 230 through the reinforcement step S130, 111) lower end portion.

The supporting frame installation step S150 includes hooking the downward hook 131 from the upper side of the end protruding outward to the side of the girder 210 of the precast panel 230, And installing the support frame 130 so that the extended support portion 135 is in close contact with the outside of the precast panel 230.

The step of constructing the bridge slab S160 may include installing the bridge slab 240 on the girder 210 and the precast panel 230 through the placement and curing of the on-site concrete, (131) is buried and installed.

The barrier wall construction step S170 after the bridge slab construction step S160 may be performed at the end of the precast panel 230 where the hook 131 of the support frame 130 is fastened and the end The barrier wall 250 is installed between the assemblies 110 so that the barrier wall 250 is protruded and the upper end of the hook 131 of the support frame 130 is buried.

In the step S180, the drainage channel 150 is installed on the support unit 135 of the support frame 130.

In addition, it is preferable that the method of installing the bridge drainage system applied to the L-shaped panel according to the present invention including the steps as described above further includes a step of installing a support bar (S190) after the step S180.

In this case, the step of installing the support bar (S190) is further performed after the installation of the drainage channel (S180), wherein the first hooking ring 132 formed on the hooking part 131 of the support frame 130, It is preferable that a supporting bar 140 is installed by hooking hooks 141 and 142 formed at both ends of the support rod 140 on the second hooking ring 136 formed on the receiving portion 135 of the frame 130 Do.

In other words, through the step of installing the supporting bar (S190), the free end of the receiving part (135) is seated on the free end of the receiving part (135), which is seated on the receiving part (135) So that the state can be maintained.

According to the bridge drainage system applied to the L-shaped panel according to the present invention as described above and the construction method thereof, the drainage assembly, the drainage guide pipe, the support frame, the support bar, So that the durability against the structure for draining can be improved.

Further, by applying a system including a drainage assembly, a drainage guide pipe, a support frame, a support bar, and a drainage channel, one side is embedded in a bridge slab and a barrier wall in a state of being fixed to the upper end of the precast panel, And the drainage path is seated on the other side of the support frame supported by the support rod to support the drainage path to maintain the seating state. Thus, the construction of the bridge drainage system applied to the L- Can be achieved easily.

Further, by applying the system including the support frame, it is possible to simply install the support frame structure at the upper part of the bridge without requiring the additional work equipment for installation of the drainage channel.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, the invention is not limited thereto. Various modifications may be made by those skilled in the art. Are included in the scope of the present invention.

110: drainage assembly 111:
112: grating 120: drainage guide tube
130: support frame 131:
131a: engaging guide portion 132: first engaging ring
135: receiving portion 136: second catching ring
140: supporting rod 141, 142:
150: drainage
210: girder 220: panel base
221: Horizontal panel 222: Fixing plate fastener
223: Vertical panel 230: Precast panel
231: Stone work attendance 240: Bridge slab
250: Firewall 310: Fixed plate
320: connecting bolt 330: connecting nut
410: Rebar

Claims (5)

The bridge slab 240 is installed on the girder 210 and the precast panel 230 through concrete pouring and curing after one end of the precast panel 230 is seated on the outermost girder 210 placed on the upper part of the pier. An upper barrier wall 250 protrudes from an end portion of the precast panel 230 protruding outward by a predetermined length to be installed over the bridge slab 240, the barrier wall 250, the precast panel 230, The upper surface of the bridge 240 is drained to the outside of the bridge,
The bridge slabs 240 are installed at the lower side of one side of the barrier wall 250 and are embedded in the bridge slabs 240 at regular intervals in the longitudinal direction of the bridge slabs 240 to collect rainwater on the upper surface of the bridge slabs 240, A guiding drainage assembly (110);
One end is connected to a drain hole passing through one side of the lower part of the collecting pipe 111 buried in the bridge slab 240 of the drainage assembly 110 so as to pass through the precast panel 230 and the other end is connected to the precast panel 230 A drainage guide pipe 120 protruding from the outside to a predetermined length;
And the other side is embedded in the lower end portion of the barrier wall 250 in a state where one side is annularly fixed to the end portion of the precast panel 230 while the other side is protruded to the outside of the precast panel 230, A support frame (130) which is bent and extended to be in close contact with an outer surface of the precast panel (230);
A support rod 140 connecting an open upper end of the support frame 130 protruding to the outside of the precast panel 230 to support the downward deflection of the open side free end; And
And a drainage passage (150) installed downward from an upper portion of the support frame (130) protruding outside the precast panel (230).
The method according to claim 1,
The supporting frame 140 is connected to the open upper end protruding outside the precast panel 230 to support the downward deflection of the side free end opened by the support bar 140 ,
The free end of the U-shaped lower end of the inverted U-shape is formed with a guide portion 131a which is inclined outwardly from the lower end by a predetermined length The hook portions 131 and
And a receiving portion 135 which is bent in a U-shape and extends from a side end portion of the hook portion 131 opposite to the engaging guide portion 131a and on which the drainage passage 150 is seated. A bridge drainage system applied to an L-shaped panel.
3. The method of claim 2,
The support rods 140 are connected to the open upper end of the support frame 130 protruding outside the precast panel 230 to support the downward deflection of the free end of the side open,
The support frame 130 is provided with a first engagement ring 132 at an upper corner portion of a side of the engagement portion 131 on which the support portion 135 extends, 131, and a second latching ring 136 is formed on the upper surface of the free end that is bent, corresponding to the first latching ring 132,
The supporting bar 140 is provided with hooking hooks 141 and 142 which are respectively engaged with the first and second hooking rings 132 and 136 at both ends thereof. Drainage system.
A method of constructing a bridge drainage system applied to an L-shaped panel for constructing a bridge drainage system applied to an L-shaped panel,
A step (S110) of installing a panel pedestal to install and fix a plurality of panel pedestals (220) at predetermined intervals in the longitudinal direction so as to protrude outward at the side of the outermost girder (210) placed on the upper part of the piers;
Shaped pre-cast panels 230 are successively placed in the longitudinal direction of the girders 210 so that both ends of the panel supports 220 are spread over the pair of panel supports 220 installed through the panel support installation step S110, A precast panel mounting step (S120) for fixing the upper surface of the end portions of the neighboring precast panels (230) to the panel pedestal (220) through fixing means;
A step (S 130) of reinforcing steel reinforcement (S 130) in which a lower portion is embedded on the upper surface of the precast panel (230) and a reinforcing bar (410) is arranged in a lattice shape on an upper portion of the stone workpiece (231)
A drainage assembly installation step of fixing the lower end of the collector pipe 111 of the drainage assembly 110 to the upper side of the reinforcing bars 410 disposed above the center portion of the precast panel 230 through the reinforcement step S130, (S140);
A downward hook portion 131 is hooked from the upper side of the end portion of the precast panel 230 protruding outwardly to the side portion of the girder 210 and a receiving portion 135 extending from the hook portion 131 is fastened to the free A support frame installation step (S150) of installing a support frame (130) so as to be in close contact with the outside of the cast panel (230);
A bridge slab 240 is installed on the girder 210 and the precast panel 230 through the placement and curing of the on-site concrete to bridge the bridge 131 of the support frame 130, Slab construction step S160;
The fire wall 250 is formed so as to protrude between the end of the precast panel 230 where the hook 131 of the support frame 130 is fastened and the drainage assembly 110, A step S170 of constructing a barrier wall so that an upper end portion of the hook 131 of the support frame 130 is embedded; And
And a drainage installation step (S180) for mounting a drainage channel (150) on the support part (135) of the support frame (130).
5. The method of claim 4,
After the drainage installation step S180, the first hook 132 formed on the hook 131 of the support frame 130 and the second hook 132 formed on the support part 135 of the support frame 130 A supporting rod 140 is installed on each of the hooking hooks 136 by hooking hooks 141 and 142 formed at both ends of the supporting rod 140 and a drain pipe 150) is provided with a supporting bar mounting step (S190) for maintaining the seating state without deflection of the free end of the receiving part (135).

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