KR100736858B1 - Expansion jointing apparatus with drainpipe for a bridge and construction method thereof - Google Patents

Abstract

The present invention relates to an expansion joint device for a bridge having a drain pipe and a construction method thereof, and to provide a drain pipe that can prevent leakage while allowing water that penetrates between the joints between the upper plates of the bridge to be smoothly drained, thereby improving durability of the bridge. Increase and extend life.

The expansion joint device of the present invention for this purpose is connected to the bottom portion of the mounting groove facing each other and connected to the attachment portion of both sides of the drain pipe made of a rubber material having a drain portion which is located convexly installed below the joint portion, A connection member mounted on an upper portion of the attachment part and installed to correspond to the height of the installation groove, and a non-contraction concrete layer that is placed / cured between the connection member and the installation groove to fix the drain pipe and the connection member to the upper plate, respectively. It also provides his construction method.

Drainpipe, bridge, expansion joint, rubber, top plate

Description

Expansion joint for apparatus with drainpipe and construction method thereof

1 is a partial cross-sectional view showing a expansion joint device for a bridge type bridge according to the prior art.

Figure 2 is a partial cross-sectional view showing a expansion joint device for a bridge of the mono-cell type (including rubber type) according to the prior art.

Figure 3 is a partial cross-sectional view showing the expansion joint device for a finger type bridge according to the prior art.

4 is a partial cross-sectional view showing the expansion joint for a rail type bridge having a drain pipe according to the first embodiment of the present invention.

5 is an enlarged view of a portion “A” of FIG. 4.

6 is a perspective view showing the drain pipe of FIG.

Figure 7 is a process chart according to the construction method of the rail joint expansion joint having a drain pipe according to the first embodiment of the present invention.

Fig. 8 is a partial sectional view showing the expansion and contraction apparatus for a bridge of a mono cell type (including rubber type) having a drain pipe according to a second embodiment of the present invention.

9 is an enlarged view of a portion “B” of FIG. 8.

10 is a partial cross-sectional view showing a finger joint type expansion joint having a drain pipe according to a third embodiment of the present invention.

Description of the main parts of the drawing

110: bridge 112: pier (including shift)

114: top plate 115: mounting groove

116: rebar 117: seam

120, 130 140: expansion joint 121, 131, 141: vertical steel plate

122: rail 123: rubber chamber

124, 134, 144: non-contraction concrete layer 129, 139, 149: connecting member

150: drain pipe 151: attachment portion

152: drainage 153: main part

154: iron 155: adhesive

156: sealing agent 133: expansion block

142: pinker plate 145: anchor bolt

146: finger

The present invention relates to an expansion joint device for a bridge, and more particularly, to increase the durability of the bridge by having a drain box to prevent water leakage while allowing the water penetrated smoothly drained between the joints between the upper plate of the bridge. It is related with the expansion joint device for bridges to increase the lifespan.

In general, the bridges are installed continuously with a plurality of bridge tops spaced at regular intervals so as to accommodate the new construction due to temperature changes such as winter and summer, dry shrinkage and creep according to the discretion of concrete, and movement of the upper tank according to live loads. do.

Accordingly, a bridge expansion and contraction device for connecting the joints between the upper plate and the upper plate of the bridge which changes from time to time to smoothly pass the vehicle and expand and contract according to the displacement generated between the upper plates is provided.

Generally, the rail joint, the finger type, and the mono cell type are mainly used as the expansion joints for bridges, and the expansion joints for the bridges are formed at the corners of the upper plate facing the joints. It is fixedly installed in the installation groove formed by cutting.

As shown in FIG. 1, a rail-type bridge expansion and contraction apparatus 20 according to the related art has a plurality of rails 22 connected to each other between the upper plates 14 facing the joint 17. Has an installed structure The rails 22 are connected by a rubber seal 23 to expand and contract according to the displacement generated between the upper plates 14.

Specifically, the rail 22 is provided on the vertical steel plate 21 fixed to the opposite side walls of the upper plate 14. At this time, the vertical steel plate 21 and the rail 22 are fixed to the rebar 16 exposed to the installation groove 15. In addition, the rail 22 is formed by placing / curing non-condensed concrete in a space formed by the vertical steel plate 21 and the installation groove 15 so that both ends of the rail 22 are installed. It is fixed to the joint 17.

By the way, since the rail-type bridge expansion joint 20 according to the prior art has a structure installed so as to simply connect between the top plate 14, at the edge of the top plate 14 forming an interface with the non-condensed concrete layer 24 Moisture may penetrate between the rail 22 and the vertical steel plate 21 installed, and leakage may occur below the upper plate 14. In addition, when the rubber chamber 23 between the rails 22 is damaged, water leakage may occur to the broken rubber chamber 23.

As such, when leakage occurs under the upper plate 14, the durability of the bridge 10 may be reduced. That is, when water leaked into the bridge pedestal 13 of the iron material supporting the upper plate 14 on the bridge 12 (including the shift), the bridge pedestal 13 is corroded to reduce durability of the bridge 10. Can be dropped.

And since the shock absorbing only the rubber chamber 23 portion of the rail provided on the upper portion of the joint 17, there is a problem that the noise is severely generated in the lower portion of the joint 17 when the vehicle passes.

As shown in FIG. 2, the monocell type expansion joint device 30 according to the prior art has a styrofoam 31 installed between opposite side walls of the upper plate 14 and the styrofoam 31. The sound absorption material 32 provided is comprised by the expansion-contraction block 33 with which it was built.

Since the mono-cell type bridge expansion joint 30 according to the prior art also has a structure simply installed between the top plate 14 in the same way as the above-described rail type bridge expansion joint, the top plate 14 and the styrofoam ( 31) and leakage may occur at the interface between the expansion block 33 and the expansion block 33.

In addition, since the styrofoam 31 used as a formwork substitute acts as a factor that prevents the deformation and expansion activity between the gaps, the impact due to the deformation and expansion activity between the flow paths is transmitted to the bridge 10 as it may damage the bridge 10. have.

And the finger joint type expansion joint 40 for the bridge according to the prior art, as shown in Figure 3, a pair of finger plates 42 are arranged in a zigzag at the upper end of the upper plate (14). A rubber drain pipe 43 is provided below the finger plate 42 to receive water falling between the finger plate 42 and the finger plate 42. At this time, the drain pipe 43 is fixed to the vertical steel plate 41 installed on both side walls of the upper plate 14 in the shape of the letter "U" with a bolt 45.

Therefore, the finger type bridge expansion joint 40 according to the prior art can solve the problem due to leakage to some extent, compared to the conventional rail type or mono cell type expansion joint for the bridge, the finger plate 42 Water penetrating into the interface of the non-contraction concrete layer 44 may be lowered down the top plate 14 by the vertical steel plate 41. In addition, since the drain pipe 43 has a structure in which the bolt 45 is fastened to the vertical steel plate 41, leakage may occur at the interface between the drain pipe 43 and the vertical steel plate 41.

In addition, since the gap between the vertical steel plate 41 and the drain pipe 43 is narrow, it is difficult to remove foreign matter deposited on the drain pipe 43.

Therefore, the bridge expansion joint according to the prior art forms an interface according to the mechanical contact with the top plate, and since the interface is formed in the downward direction, the interface is provided a path through which moisture can penetrate the problem of leakage Is generated.

Accordingly, the present invention has been proposed to solve the above-mentioned conventional problems, and an object of the present invention is to prevent the water penetrating into the interface between the components and the top plate to prevent leakage of the bottom plate to increase the durability of the bridge. It is to prolong life.

A second object of the present invention is to make it possible to improve the impact mitigation effect and sound insulation effect.

A third object of the present invention is to be able to form a non-shrinkable concrete layer without using styrofoam, which is a formwork substitute.

A fourth object of the present invention is to prevent leakage by installing additionally in the maintenance work for the conventional expansion joint device.

In order to achieve the above object, the present invention is an expansion joint device for the bridge is installed in the installation groove of the joint portion between the top plate and the top plate of the bridge, the attachment portion attached to the bottom surface of the installation groove facing each other, the attachment of both A drain pipe made of a rubber material having a drain portion connected to a portion and installed convexly downwardly, and a connection member mounted on both sides of the attachment portion and installed to correspond to a height of the installation groove; It is characterized in that it comprises a non-contraction concrete layer is placed / cured between the member and the installation groove to secure the drain pipe and the connecting member to the upper plate, respectively.

In the expansion joint according to the present invention, the upper surface of the drain pipe is formed with irregularities at regular intervals. Concave-convex is formed in the attachment portion of the drain pipe, it is preferable to form parallel to the width direction of the top plate.

In the expansion joint according to the present invention, the attachment portion of the drain pipe is attached to the bottom surface of the installation groove via the adhesive, the edge portion of the attachment portion is sealed.

In the expansion joint according to the present invention, the connection member may be configured to include a vertical steel plate inserted and supported in the recessed portion of the both sides of the attachment portion, and a plurality of rails connecting the upper ends of both vertical steel sheets.

In the expansion joint according to the present invention, the connection member may be configured to include an expansion block having a vertical steel sheet is inserted into the recesses of the both sides of the attachment portion and supported on the iron portion.

And in the expansion joint according to the present invention, the connection member may be configured to include a vertical steel plate inserted and supported in the main portion of the both sides of the attachment portion, and a finger plate connecting the upper end of both vertical steel plates.

The present invention also provides a construction method of the expansion joint described above. That is, the present invention is a method for constructing the expansion joint device for the bridge in the joint between the upper plate and the upper plate of the bridge, (a) cutting the corners of the upper end of the facing upper plate to form an installation groove, and (b) Attaching attachments to bottom surfaces of both installation grooves, and installing drainage pipes connected to both attachment portions so that the downwardly convex drain portions are located at the joints, and (c) above the attachment portions on both sides; (D) placing and curing non-condensed concrete in a space formed by the connection member and the installation groove, and installing the connection member to correspond to the height of the installation groove. It characterized in that it comprises a step of forming a non-contraction concrete layer fixed to each.

In the construction method of the expansion joint according to the present invention, irregularities are formed on the upper surface of the drain pipe in parallel to the width direction of the upper plate.

In the construction method of the expansion joint according to the present invention, the step (b) comprises the step of attaching the attachment portion of the drain pipe through the adhesive on the bottom surface of the installation groove, and sealing the edge portion of the attachment portion Can be.

In the construction method of the expansion joint according to the present invention, in order to prevent the non-concrete concrete layer from being pushed toward the joint when placing the non-contraction concrete layer in the step (d), the connecting member is inserted into the recess of the attachment part and supported by the convex part. Steel sheet.

Hereinafter, embodiments of the present invention as described above will be described in detail with reference to the accompanying drawings. On the other hand, the "bridge" used in the embodiment of the present invention was used as a meaning including all of the structure or underground structures that require the connection of the top plate and the top plate, as well as bridges in the literal sense.

First embodiment

FIG. 4 is a partial cross-sectional view showing a rail type expansion joint device having a drain pipe according to the first embodiment of the present invention, FIG. 5 is an enlarged view of part “A” of FIG. 4, and FIG. A perspective view showing a drain pipe.

4 to 6, the rail type expansion joint device for a bridge 120 according to the first embodiment of the present invention (hereinafter referred to as an expansion joint device) is an upper portion of the joint 117 of the upper plate 114. A connecting member 129 having a rail 122 provided at the upper side thereof, a drain pipe 150 installed below the connecting member 129 to prevent leakage from occurring below the upper plate 114, and a connecting member 129 and a drain pipe. It is configured to include a non-contraction concrete layer 124 for fixing the 150 to the joint 117.

The expansion joint device 120 according to the first embodiment will be described in detail as follows. Of course, the expansion joint 120 according to the first embodiment is fixedly installed in the installation groove 115 formed by cutting the corner portion of the upper plate 114 facing the center of the joint 117.

The drain pipe 150 is a drain pipe made of a synthetic rubber material, and is connected to the attachment part 151 attached to the bottom surface of the mounting groove 115 facing each other, and the attachment part 151 to the joint part 117. It has a drain portion 152 positioned and convexly installed downward. In particular, the attachment portion 151 is arranged so that the bottom surface of the installation groove 115 is horizontal, and then attached to the bottom surface of the installation groove 115 via the adhesive 155. And the edge portion of the bottom surface of the attachment portion 151 and the installation groove 115 is sealed with a sealing material 156 made of silicon.

Therefore, moisture is prevented from penetrating into the interface between the attachment part 151 and the installation groove 115, and the water penetrated under the upper plate 114 through the joint part 117 gathers in the drain part 152 of the drain pipe. Since it is discharged to both ends of 150, it is possible to prevent the leakage of water below the drain pipe 150.

Unevenness (153, 154) is formed on the upper surface of the drain pipe 150 at regular intervals, the unevenness (153, 154) is preferably formed at least on the upper surface of the attachment portion (151). The unevenness 153 and 154 are preferably formed in a direction parallel to the width direction of the upper plate 114. The reason why the irregularities 153 and 154 are formed on the upper surface of the drain pipe 150 will be described in the description of the non-contraction concrete layer 124 which will be described later.

The connection member 129 is mounted on both attachment portions 151 and installed to correspond to the height of the installation groove 115. The connection member 129 includes a vertical steel plate 121 inserted into the recessed portions 153 of both attachment portions and supported by the convex portion 154, and a plurality of rails 122 connecting upper ends of both vertical steel plates 121. Include. A rubber chamber 123 is interposed between the rails 122. And the vertical steel plate 121 is installed in close proximity to the inner side wall of the upper plate 114.

And the non-condensed concrete layer 124 is formed by pouring / curing non-condensed concrete in the space formed by the connecting member 129 and the installation groove 115, the top plate 114 and the drain pipe 150 and the connecting member 129 ). At this time, the attachment portion 151 located on the bottom surface of the installation groove 115 inside the vertical steel plate 121 of the drain pipe 150 is bonded to the poured non-contraction concrete layer 124.

At this time, since the vertical steel plate 121 inserted into the recess 153 of the attachment portion is in close contact with the convex portion 154, the vertical steel sheet 121 is prevented from being pushed into the joint 117 when pouring non-contraction concrete.

Looking at the penetration path of the moisture of the expansion joint device 120 according to the first embodiment, between the rail 122 and the vertical steel plate 121 installed at the corner of the upper plate 114 forming an interface with the non-contracting concrete layer 124 Moisture may penetrate, or moisture may penetrate between the bottom surface of the installation groove 115 and the attachment portion 151 of the drain pipe. Moisture that has penetrated the electrons is collected in the drain 152 of the drain pipe, and therefore cannot penetrate under the upper plate 114. In the latter case, since the edge portion of the attachment portion 151 is sealed, and the attachment portion 151 is attached to the bottom surface of the installation groove 115 by the adhesive 155, the penetration of moisture itself is essentially blocked. have. Therefore, by installing the drain pipe 150 to connect the bottom surface of the installation groove 115 and the joint 117, it is possible to prevent the leakage of water below the top plate 114.

Comparing the expansion joint device 100 according to the first embodiment of the rail type and the conventional expansion joint device, except that the drain pipe 150 is installed to connect the bottom surface of the installation groove 115 and the joint 117. Since the lower surface has the same configuration, it is possible to prevent the leakage of water below the upper plate 114 by installing the drain pipe 150 according to the present invention during the maintenance work for the conventional expansion joint device. That is, it can be easily applied to an existing bridge in which the conventional expansion joint is installed.

And since the elastic drainage pipe 150 of the rubber material is installed in the joint 117, the connecting member 129 is installed on the drainage pipe 150, it is possible to improve the shock-absorbing effect and sound insulation effect.

The construction method of the expansion joint device 120 according to the first embodiment will be described with reference to FIGS. 4 and 7 as follows. 7 is a process chart according to the construction method of the expansion joint according to the first embodiment.

First, starting from the step of forming the installation groove 115 in the joint 117 between the top plate 114 and the top plate 114 (171). That is to form the installation groove 115 by cutting the corner of the upper end of the upper plate 114 facing. For example, by cutting the corner of the upper portion of the upper plate 114 in the form of an English letter "L" with a concrete cutter to form the installation groove 115 to expose a portion of the reinforcing bar 116 that is placed on the upper plate 114. And the bottom surface of the installation groove 115 is arranged to be horizontal.

Next, a step of installing the drain pipe 150 is performed (172). In other words, attach the attachment portion 151 after rearranging the surface on the bottom surface of both installation grooves 115, and the convex drain portion 152 connected to both attachment portions 151 is located at the joint portion 117. Install it.

At this time, the step of installing the attachment portion 151 on the bottom surface of the installation groove 115, after attaching the attachment portion 151 through the adhesive 155 on the bottom surface of the installation groove 115 (173), The sealing agent 156 is applied to the edge portion of the attachment portion 151 to perform a sealing process (174). Therefore, the penetration of moisture through the interface between the attachment portion 151 and the installation groove 115 is prevented.

Next, the step of installing the connecting member 129 is performed (175). That is, the lower end of the vertical steel plate 121 is inserted in the recessed part 153 of both attachment parts. And both ends of the rail 122 is fixed to the reinforcing bars 116 exposed to the installation groove 115. At this time, the vertical steel plate 121 is installed close to the outer wall facing the upper plate 114.

Finally, the step of forming the non-contraction concrete layer 124 is performed (176). That is, the non-condensed concrete layer for placing and curing non-condensed concrete in the space formed by the connecting member 129 and the installation groove 115 to fix the drain pipe 150 and the connecting member 129 to the upper plate 114, respectively. 124). Before forming the non-contraction concrete layer 124, an adhesive (not shown) with good adhesion to the non-contraction concrete is applied to the outer wall of the installation groove 115 so that the non-contraction concrete is well bonded to the outer wall of the installation groove 115. It is preferable to precede the process.

At this time, since the vertical steel plate 121 is inserted into the recess 153 of the attachment portion and is supported by the convex portion 154, the vertical steel plate 121 is prevented from being pushed into the joint portion 117 when pouring non-contraction concrete.

Therefore, the moisture penetrated through the interface formed on the drain pipe 150 is collected in the drain 152 of the drain pipe and discharged to the outside, and the edge of the attachment part 151 attached to the bottom surface of the installation groove 115 is sealed. Since it is processed, it is possible to prevent the leakage of water below the drain pipe 150.

On the other hand, in the step of installing the drain pipe 150, since there is no need to install the anchor bolt or steel plate, it can be quickly and low-cost construction.

Second embodiment

In the first embodiment, the drain pipe is installed in the rail joint expansion joint device, but the drain pipe may be installed in the mono cell type (including rubber type) or the finger joint expansion joint.

As shown in FIGS. 8 and 9, the expansion joint device 130 according to the second embodiment is a expansion joint device for a bridge of a mono-cell type (including rubber type) with low flow, which is under the connection member 139. It has a structure in which the drain pipe 150 is installed. The connecting member 139 includes an expansion block 133 having a vertical steel plate 131 extending downward. In addition, the expansion block 133 and the attachment portion 151 of the drain pipe are fixedly bonded to the non-contraction concrete layer 134 placed in the installation groove 115.

At this time, the drain pipe 150 has a structure in which the attachment portion 151 is attached to the bottom surface of the installation groove 115 and the drain portion 152 is disposed on the joint portion 117 as in the first embodiment.

The expansion block 133 is installed above the attachment part 151 of the drain pipe. The expansion block 133 has a space 135 formed therein, and a vertical steel sheet 131 extending downward is inserted into the recess 153 of the upper portion of the attachment portion 151 to be supported by the convex portion 154.

Therefore, since the drain pipe 150 is installed in the same structure as in the first embodiment, the water is prevented from penetrating into the interface between the attachment portion 151 and the installation groove 115, and the upper plate 114 through the joint portion 117. The moisture penetrated below) is collected in the drain 152 of the drain pipe and discharged to one end of the drain pipe 150, thereby preventing leakage of water below the drain pipe 150.

Since the soundproof drain pipe 150 is provided below the expansion block 133, the sound absorbing material may not be installed in the space 135 in the expansion block 133 as in the related art.

Since the vertical steel sheet 131 extending from the lower end of the expansion block 133 is mounted and supported on the attachment portion 151, the vertical steel sheet is prevented from being pushed into the joint portion 117 when the non-concrete concrete is poured. When pouring concrete, there is no need to install styrofoam for formwork. Therefore, by not using the styrofoam, it is possible to precise construction and to improve the elasticity of the expansion joint 130. In addition, various problems caused by the use of styrofoam can be solved.

Third embodiment

As shown in FIG. 10, the expansion joint 140 according to the third embodiment is a finger joint type expansion joint for a bridge, and has a structure in which a drain pipe 150 is installed under the connection member 149. The connection member 149 includes a vertical steel plate 141 mounted on and supported by the attachment portion 151 of the drain pipe, and a finger plate 142 provided on the vertical steel plate 141. In addition, the connection member 149 and the attachment portion 151 of the drain pipe are joined to and fixed to the non-contraction concrete layer 134 placed in the installation groove 115.

As in the first embodiment, the drain pipe 150 has a structure in which an attachment part 151 is attached to the bottom surface of the installation groove 115 and a drain part 152 is disposed at the joint.

The vertical steel sheet 141 is inserted into the recessed portions 153 of both attachment portions and is supported by the convex portions 154. The vertical steel sheet 141 has a "-" shape to surround the upper edge portion of the upper plate 114, the finger plate 142 is installed on a horizontal surface.

The finger plate 142 is fastened to the upper ends of both vertical steel plates 141 and is installed zigzag toward the joint 117. The anchor bolt 145 is fixed by the anchor bolt 145 fastened toward the bottom surface of the insertion groove 115 at one end of the finger plate 142 located on the upper plate 114, the anchor bolt 145 is a non-contraction concrete layer 144 Is fixed by.

The expansion joint device 140 according to the third embodiment having the structure as described above has tip fingers 146 zigzag protruding zigzag on the pair of finger plates 142 even when the top plate 114 is stretched and the interval therebetween changes frequently. The gap between the top plate 114 is continuously filled while maintaining the state of engaging with each other. In particular, the finger plate 142 is a zigzag interlocking finger structure to remove the straight disconnection that may be generated in the transverse direction of the bridge 110 to suppress the noise and impact that may occur during contact with the passing vehicle. .

In particular, since the drain pipe 150 is installed in the same structure as in the first embodiment, the water is prevented from penetrating into the interface between the attachment portion 151 and the installation groove 115, and the upper plate 114 through the joint portion 117. The moisture penetrated below) is collected in the drain 152 of the drain pipe and discharged to one end of the drain pipe 150, thereby preventing leakage of water below the drain pipe 150. In other words, the drain pipe is conventionally bolted to the outer wall of the vertical steel sheet, it is possible to solve the problem caused by the leakage caused by the interface between the drain pipe and the vertical steel sheet.

In addition, the gap between the vertical steel sheet 141 and the drain pipe 150 is wide, so that foreign matter deposited on the drain pipe 150 can be easily removed.

The preferred embodiment of the present invention has been described above. The present invention may use various changes, modifications, and equivalents. It is clear that the present invention can be applied in the same manner by appropriately modifying the above embodiments. Accordingly, the above description does not limit the scope of the invention as defined by the limitations of the following claims.

As described above, according to the structure of the present invention, the attachment portion of the drainage pipe is attached to the bottom surface of the installation groove and is sealed, thereby preventing moisture from penetrating into the interface between the attachment portion and the bottom surface of the installation groove. In addition, the water penetrating down the top plate through the joint portion is collected in the drain portion of the drain pipe disposed in the joint portion is naturally drained through one end of the drain pipe can be prevented from leaking below the drain pipe. Thus, the service life of the bridge is increased and its life is long.

And since the connection member is provided in the attachment part of the drain pipe of a rubber material, an impact relaxation effect and a sound insulation effect can be improved.

In addition, since the lower end of the vertical steel sheet is inserted into the recess formed in the attachment portion and is supported by the iron portion, the vertical steel sheet can be prevented from being pushed toward the joint portion when the non-condensed concrete is poured in order to form the non-condensed concrete layer. Therefore, it is not necessary to form the styrofoam for formwork separately in order to cast non-contraction concrete. In addition, it is possible not only to precise construction, but also to solve the problems caused by using styrofoam.

In addition, there is an advantage that can be easily applied to existing bridges because only the drain pipe according to the present invention needs to be installed to connect the bottom surface of the installation groove when the maintenance work for the conventional expansion joint device for bridges.

As a result, the present invention can not only improve the usability and functionality of the bridge, but also increase the durability of the bridge and prolong the service life, and reduce maintenance costs (repair and reinforcement costs).

Claims (12)

An expansion joint device for bridges installed in the installation grooves of the joints between the top plate and the top plate of the bridge, A rubber drain pipe having an attachment portion attached to a bottom surface of the installation groove facing each other, and a drain portion connected to both of the attachment portions and positioned convexly on the joint portion; A connection member formed of an elastic block having a vertical steel plate mounted on upper portions of the attachment portions, and installed to correspond to the height of the installation groove; The expansion joint for the bridge having a drain pipe, characterized in that it is poured / cured between the connecting member and the installation groove, the non-condensed concrete layer for fixing the drain pipe and the connecting member to the upper plate, respectively. The method of claim 1, The expansion joint for a bridge having a drain pipe, characterized in that irregularities are formed at a predetermined interval on the upper surface of the drain pipe. The method of claim 2, The unevenness is the expansion joint device for bridges having a drain pipe, characterized in that formed in the attachment portion of the drain pipe. 4. The expansion joint apparatus for a bridge having a drain pipe according to claim 3, wherein the unevenness is formed parallel to the width direction of the upper plate. The expansion joint for a bridge having a drain pipe according to claim 4, wherein the attachment portion of the drain pipe is attached to the bottom surface of the installation groove via an adhesive, and the edge portion of the attachment part is sealed. delete The method of claim 5, And said vertical steel sheet is inserted into recesses of both sides of said attachment portion and is supported by said convex portion. delete In the method of constructing expansion joints for bridges at the joints between the top and top of the bridge, (A) forming an installation groove by cutting the edge of the top of the facing top plate; (b) attaching an attachment portion to bottom surfaces of both installation grooves, and installing a drain pipe connected to both attachment portions so that a downwardly convex drain portion is located at the joint portion; (c) installing the connection member mounted on both sides of the attachment part to correspond to the height of the installation groove; (d) placing / curing non-condensed concrete in a space formed by the connection member and the installation groove to form a non-condensed concrete layer respectively fixing the drain pipe and the connection member to the upper plate; In order to prevent the non-concrete concrete layer from being pushed toward the joint part in the step (d), the connecting member is a flexible block having a vertical steel plate inserted into the recess of both sides and supported by the convex part. Construction method of the expansion joint device for bridges having a drain pipe. The method of claim 9, Construction method of the expansion joint device for a bridge having a drain pipe, characterized in that irregularities are formed parallel to the width direction of the upper plate on the upper surface of the drain pipe. The method of claim 10, wherein step (b) comprises: (b1) attaching an attachment part of the drain pipe through an adhesive to a bottom surface of the installation groove; and (b2) sealing the edge of the attachment portion. delete

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