KR102186237B1 - Expansion joint using induction pipe - Google Patents

Abstract

The present invention aims to provide an expansion joint apparatus using an induction drain pipe, which is able to induce the drainage of rainwater introduced from an asphalt layer on an upper side of a bridge along the bridge gradient through the inside of the expansion joint apparatus, and to settle the issue of gathering of rainwater or introduced water and a water leak. According to the present invention, the expansion joint apparatus using the induction drain pipe comprises: expansion joint units installed between upper plates of a bridge at regular distances; a rear-placed concrete unit placed between the expansion joint unit and a bridge to have a water penetration layer for rainwater to be introduced; and inducing drain units installed in the rear-placed concrete unit and the expansion joint unit at regular distances to induce the rainwater introduced from the asphalt layer on an upper side of the bridge through the rear-placed concrete unit to allow the rainwater to pass through and be discharged through the inside of the expansion joint unit along the gradient of the bridge.

Description

Expansion joint using induction pipe {Expansion joint using induction pipe}

The present invention relates to an expansion joint device using an induction drain pipe, and more particularly, an induction drain pipe capable of draining rainwater (rainwater) flowing from the asphalt layer above the bridge through the interior of the expansion joint along the slope of the bridge It relates to an expansion joint device using.

The expansion joint is a device that absorbs the behavior of the elongation and contraction of the bridge due to temperature change and the behavior of the elongation and contraction of the bridge through a mechanical device.

Such an expansion joint is provided with a pair of finger plates that repeat insertion and removal from each other while being engaged with each other, or a rail spaced apart at a predetermined interval.

In addition, when applied to a joint bridge, a plurality of such expansion joints are installed at predetermined lengths, and when applied to an integrated bridge, they may be installed on pavements on both sides of the bridge.

Figure 1 is a state diagram of the use of the expansion joint 1 according to the prior art. Referring to this, the joint bridge includes an upper structure divided into a plurality, and the upper structure includes a road pavement body 30 and the road pavement body It includes a girder (20) to provide support from the bottom.

In addition, an expansion joint 1 is provided between each upper structure. At this time, the expansion joint 1 is provided at a position corresponding to the upper portion of the pier 10. In addition, a bridge support 12 for supporting the upper structure is provided between the pier 10 and the upper structure.

However, the expansion joint 1 reduces riderability during vehicle passage, and has a replacement cycle of approximately 6 to 7 years due to damage caused by vehicle load and foreign matter.

In particular, although not shown in detail in Fig. 1, the lower part of the expansion joint 1 prevents the free guided drainage of the road surface water, the road surface water, and various foreign substances from flowing under the bridge ridge, thereby deteriorating the function due to corrosion of the bridge support. And a waterproof rubber sheet to prevent corrosion of concrete is installed.

At this time, the waterproof rubber sheet is filled with foreign substances accumulated for several years, so the road surface water does not fall out, or the road surface water overflows to the coping floor of the bridge or bridge, and it is just outflowed, it cannot withstand the load and is torn, or foreign matter cleaning is possible if necessary. When necessary, there was a problem that it was difficult to maintain the waterproof rubber sheet.

In order to replace the waterproof rubber sheet like this, it is necessary to control the vehicle by lane and block out the non-shrink concrete in the gap of the bridge slab, and replace all the expansion joints and the waterproof rubber sheet, so durability, which is the original function of the expansion joint. , Drainage, economy, and water retention are significantly deteriorated.

This problem will be described in detail with reference to FIGS. 2A to 2D.

Figure 2a is a cross-sectional view showing the installation state of a conventional waterproof rubber sheet for a finger-type expansion joint, the conventional waterproof rubber sheet for a finger-type expansion joint is a structure that is fixed with anchor bolts on the side of the slab, and is for waterproofing after a long period of use. It is very difficult to clean the foreign matter deposited on the rubber sheet, and when the waterproof rubber sheet is torn due to the weight of the deposited foreign material, the non-shrinkable concrete in the slab area is crushed to block out the expansion joint (1) and the waterproof rubber sheet. As they must be replaced together, serious problems in economics and durability are caused.

In addition, when replacing the waterproof rubber sheet and cleaning foreign substances on the bridge, vehicle control is performed for each lane, so traffic congestion inevitably occurs, and there is a problem that it is not possible to quickly replace and clean the waterproof rubber sheet in a short time.

In addition, Figure 2b is a cross-sectional view showing the installation state of the waterproof rubber sheet for a conventional rail-type expansion joint, the conventional waterproof rubber sheet for the rail-type expansion joint has several waterproof rubber sheets sandwiched between rail-type steel materials. The road surface water is completely drained, and since foreign matter is relatively less deposited than the finger-type expansion joint (1), there is an advantage in that it is easy to clean the waterproof rubber sheet in a minimum time on the bridge.

In addition, there is a problem in that the replacement of the waterproof rubber sheet needs to be replaced while traffic is controlled for each lane, as in the finger-type expansion joint 1, and a separate special equipment is required to replace the waterproof rubber sheet.

And, Figure 2c is a cross-sectional view showing the installation state of the conventional waterproof rubber sheet for the new finger type expansion joint, the conventional waterproof rubber sheet for the new finger type expansion joint is vulcanized a waterproof rubber sheet on the inner surface of a steel material. As it is attached, the road surface water is completely drained, and since foreign matter is relatively less deposited than the finger-type expansion joint (1), it is easy to clean the waterproof rubber sheet in a minimum time on the bridge.

However, when the waterproof rubber sheet is torn, it is impossible to separately replace only the waterproof rubber sheet. Therefore, under the condition of traffic control for each lane, the non-shrink concrete in the gap of the bridge slab is crushed and blocked out, so that the expansion joint (1) and the waterproof rubber There is a problem of poor economic efficiency because the seat needs to be replaced.

In addition, Figure 2d is a cross-sectional view showing the installation state of the conventional waterproof rubber sheet for the expansion joint on the gravel road of a railroad bridge, the conventional waterproof rubber sheet for the expansion joint on the gravel road of the railroad bridge installs an a-shaped steel plate on the side of the slab, and the a-shaped After fixing the rubber sheet for waterproofing on the side of the steel plate, reinforced with reinforcing bars in the block-out area to pour and cure non-shrink concrete, then fix the steel plate of a certain size with a-shaped steel plate and nuts to install gravel to install railroad sleepers and rails. It is one structure.

These conventional waterproof rubber sheets for expansion joints on gravel roads of railway bridges are very difficult to clean after a certain period of time, and if foreign substances are deposited on the waterproof rubber sheet and the waterproof rubber sheet is torn by weight, the expansion joint 1 and Since all of the waterproof rubber sheets have to be replaced, serious problems arise in economic efficiency and durability.

In addition, there is an unavoidable problem due to the control of train operation and the difficulty of replacing the waterproof rubber sheet in a short time because it is necessary to replace the waterproof rubber sheet and clean foreign substances while controlling the train operation on the bridge.

On the other hand, as shown in Figures 2a to 2d, foreign substances are deposited on the waterproof rubber sheet and the waterproof rubber sheet is often torn by weight, so that road surface water or foreign substances flow, leakage and whitening phenomenon in the piers and alternations, Deterioration and peeling of concrete, rust and deterioration of function of bridge bearings, accumulation of foreign matter, and rust of steel girders occur, resulting in poor durability, shortening the life of the bridge and incurring excessive maintenance costs.

In addition, the repairing method of the waterproof rubber sheet is to block out the non-shrinkable concrete in the slab gap with the upper structure and the lower structure of the bridge, and then repeatedly replace the expansion joint 1 and the waterproof rubber sheet for each lane. Therefore, a serious problem occurs in economical efficiency and durability.

In addition, when replacing the waterproof rubber sheet and cleaning foreign substances on the bridge, vehicle control is always performed, so a problem of traffic congestion inevitably occurs, and there is a problem that it is not possible to quickly replace and clean the waterproof rubber sheet in a short time.

In particular, existing expansion joints have a problem in that rainwater cannot be completely drained due to a drainage limit of rainwater (excellent water) flowing from the asphalt layer above the bridge.

Due to this, the inflowed rainwater accumulates and damages the lower structure, and in winter, there is a problem such as freezing caused by standing objects, the road surface becomes slippery, and a secondary accident risk occurs.

Specifically, rainwater drained from the upper part of the bridge is designed to be drained to both sides of the bridge.In the case of a bridge with a gradient, it is equipped with a drainage facility that can solve the problem that rainwater cannot be drained to both sides of the bridge while flowing along the gradient of the bridge. The need for an expansion joint is emerging.

Korean Intellectual Property Office Application No. 10-2007-0062571 Korean Intellectual Property Office Application No. 10-2009-0033829 Korean Intellectual Property Office Application No. 10-2009-0060695 Korean Intellectual Property Office Application No. 10-2012-0073023

The present invention was conceived to solve the problems of the prior art, and an object of the present invention is to induce rainwater flowing from the asphalt layer above the bridge to be drained through the interior of the expansion joint along the bridge gradient, It is to provide an expansion joint device using an induction drain pipe capable of solving a phenomenon caused by accumulation or leakage of rainwater or incoming water.

The present invention for achieving the above object, the expansion joint is installed at a constant interval between the upper plate and the upper plate of the bridge; A futa concrete part formed between the expansion joint and the upper plate of the bridge and comprising a water permeable layer to allow rainwater to flow in; And installed at a certain interval between the futa concrete part and the expansion joint, so that rainwater that is permeated from the asphalt layer above the bridge through the futa concrete part passes through the interior of the expansion joint along the slope of the bridge and is drained. It is preferable to include; induction drainage unit to induce.

The expansion joints: left and right upper plates that are installed to have a constant interval between the upper plate and the upper plate of the bridge and are approached or separated from each other; Left and right side plates respectively installed on the bottom surfaces of the left and right upper plates to form a space portion therein; A plurality of joints respectively connected to the left and right side plates and buried in the futa concrete; An upper waterproof rubber sheet having both ends fixed to the inner side of the left and right side plates and installed to be disposed in an upper region of the space, and providing a waterproof function at a corresponding position; And a lower waterproof rubber sheet having both ends fixed to the inner side of the left and right side plates so as to be spaced apart from the lower part of the upper waterproof rubber sheet and disposed in a lower area of the space, and providing a waterproof function at the corresponding position, and the induction drainage. Blowing: left and right perforated pipes having one end fixedly installed on the outside of the left and right side plates so as to be embedded in the futa concrete part; A stretchable guide drain pipe disposed in the space with both ends fixedly installed inside the left and right side plates to be connected to the left and right perforated pipes; A through hole formed in the left and right side plates to which the guide drain pipe and the perforated pipe are fixed so that the guide drain pipe and the left and right perforated pipes communicate with each other; Fixing brackets respectively installed on the left and right side plates to be adjacent to the through hole to fix the guide drain pipe and the perforated pipe; And a rainwater induction bracket for fixing the outer end of the perforated pipe and guiding and draining the rainwater moved through the induction drainage pipe.

It is preferable that the induction drainage pipe and the perforated pipe of the drainage part are installed to be disposed between a plurality of joints.

It is preferable that the induction drainage pipe and the perforated pipe of the drainage part are installed on the left and right side plates at an interval of 1.5 to 2.5M along the length direction.

The induction drainage pipe is made of a bellows type induction drainage pipe, and is preferably installed to be disposed between the upper waterproof rubber sheet and the lower waterproof rubber sheet.

The fixing bracket includes: a first flange fixed to the left and right side plates and having a through hole formed at a center thereof to correspond to the through hole; A first coupling protrusion formed to protrude in an annular shape from one surface of the first flange and inserted into ends of the perforated pipe and the guide drain pipe; And a first fixing part made of fixing bolts or rivets to fix the first coupling protrusion and the perforated pipe, and the first coupling protrusion and the guide drain pipe, respectively, wherein the rainwater induction bracket comprises: a side surface of the concrete layer of the bridge upper plate A second flange fixed to and having a drain hole formed in the center; A second coupling protrusion formed to protrude in an annular shape from one surface of the second flange and inserted into an end portion of the perforated pipe; And a second fixing part comprising a fixing bolt to fix the second coupling protrusion and the perforated pipe, and a guide part for guiding the drainage of rainwater to the opposite side of the second coupling protrusion; is preferably installed to be connected. Do.

It is preferable that the upper waterproof rubber sheet and the lower waterproof rubber sheet are bent in a predetermined shape so as to be stretchable, and a flat portion is provided at an intermediate portion of the lower waterproof rubber sheet to support the guide drain pipe.

The upper waterproof rubber sheet is fixed at a corresponding position by a fixing member, and the lower waterproof rubber sheet is detachably coupled to a corresponding position by a fastening member, the fixing member is a rivet, and the rivet is outside the left and right side plates. It is fixed from the side to the inside, and the fastening member is a wrench bolt that is detachably coupled at a corresponding position for replacement of the lower waterproof rubber sheet, and the wrench bolt is preferably fastened from the inside to the outside of the left and right side plates.

According to the expansion joint device using the guided drainage pipe according to the present invention, there is an effect of improving the drainage performance by inducing rainwater flowing from the asphalt layer above the bridge to be drained through the interior of the expansion joint along the bridge gradient.

Accordingly, it is effective to prevent the risk of secondary accidents because it prevents the accumulation or leakage of rainwater flowing into the expansion joint to extend the life of the structure, and prevents the freezing phenomenon because there are no standing objects in winter.

1 is a state diagram of use of an expansion joint according to the prior art,
2A to 2D are views for explaining the problem of the expansion joint device according to the prior art,
3 is a diagram schematically showing the structure of an expansion joint device using an induction drain pipe according to the present invention,
4 is a schematic view showing an example in which an expansion joint device using an induction drain pipe according to the present invention is installed in an inclined manner,
5 is a view showing an example in which an induction drainage part is installed in an expansion joint provided in an expansion joint using an induction drainage pipe according to the present invention, and an upper waterproof sheet and a lower waterproof sheet are provided,
6 is a view showing an example in which only an upper waterproof sheet is provided as a state in which an induction drain is installed in an expansion joint provided in an expansion joint using an induction drain pipe according to the present invention,
7 is a view schematically illustrating a bridge in a state in which an expansion joint using an induction drainage pipe according to the present invention is installed, as viewed from above.

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

Prior to the description of the present invention, the following specific structure or functional descriptions are exemplified only for the purpose of describing embodiments according to the concept of the present invention, and embodiments according to the concept of the present invention may be implemented in various forms. , It should not be construed as being limited to the embodiments described herein.

In addition, since the embodiments according to the concept of the present invention can be modified in various ways and have various forms, specific embodiments will be illustrated in the drawings and described in detail in the present specification. However, this is not intended to limit the embodiments according to the concept of the present invention to a specific type of disclosure, and it should be understood that all modifications, equivalents, and substitutes included in the spirit and scope of the present invention are included.

3 is a view schematically showing the structure of an expansion joint using an induction drainage pipe according to the present invention, and FIG. 4 is a schematic view showing an example in which an expansion joint using an induction drainage pipe according to the present invention is installed at an angle 5 is a view showing an example in which an induction drainage part is installed in an expansion joint provided in an expansion joint using an induction drainage pipe according to the present invention, and an upper waterproof sheet and a lower waterproof sheet are provided, and FIG. 6 is the present invention A diagram showing an example in which only an upper waterproof sheet is provided as a state in which an induction drain is installed in an expansion joint provided in an expansion joint using an induction drain pipe according to the present invention, and FIG. 7 is an expansion joint device using an induction drain pipe according to the present invention. It is a view schematically showing the bridge in the state where is installed.

As shown in these drawings, the expansion joint device using an induction drainage pipe according to the present invention is preferably configured to include an expansion joint 100, a futa concrete part 200, and an induction drainage part 300. The present invention may be installed in a parallel state as shown in FIG. 3 or inclined as shown in FIG. 4, and when installed in an inclined manner, a drainage effect may be maximized.

The expansion joint 100 is installed at a certain interval between the upper plate and the upper plate of the bridge, and has a structure that absorbs the behavior of the extension and contraction of the bridge according to temperature changes. A detailed description will be given later.

The futa concrete part 200 is poured between the expansion joint 100 and the upper plate of the bridge, and is preferably made of a water permeable layer so that rainwater can enter.

The induction drainage unit 300 is installed at regular intervals inside the expansion joint 100, and the rainwater flowing from the asphalt layer above the bridge passes through the interior of the expansion joint 100 along the slope of the bridge. It serves to induce drainage, and such an induction drainage unit 300 is a feature of the present invention. A detailed description of the induction drainage unit 300 will be described later.

As shown, the expansion joint 100 includes left and right upper plates 310A, 310B, left and right side plates 320A, 320B, joint 130, upper waterproof rubber sheet 140, upper rubber pedestal 142, It is preferable to include a fixing member 144, a lower waterproof rubber sheet 150, a lower rubber pedestal 152, and a fastening member 154.

The upper plates 310A and 310B consist of a pair of left and right upper plates facing each other, and are installed so as to have a constant interval between the upper plate and the upper plate of the bridge, and are approached or spaced apart from each other to correspond to the expansion and contraction of the bridge.

The left and right side plates 120A and 120B are respectively installed on the bottom surfaces of the left and right upper plates 110A and 110B to form a space between the left and right side plates 120A and 120B.

The joint 130 is connected to the left and right side plates 120A and 120B, respectively, and is embedded in the futa concrete part. Therefore, the expansion joint 100 can form one body with the bridge.

On the other hand, the expansion joint 100 adopts a double rubber structure to increase durability by preventing secondary defects such as leakage and rust occurrence of the lower structure due to the breakage of the upper and lower waterproof rubber sheets 150 It is desirable to do.

Specifically, the upper waterproof rubber sheet 140 and the lower waterproof rubber sheet 150 are double applied to the expansion joint 100 to form a predetermined distance. At this time, it is preferable that the upper waterproof rubber sheet 140 and the lower waterproof rubber sheet 150 have different shapes.

In this way, since the upper waterproof rubber sheet 140 and the lower waterproof rubber sheet 150 are dually applied, it is possible to increase durability by preventing secondary defects such as leakage and rust of the lower structure from occurring due to damage of one of them. There will be.

In particular, in the case of the expansion joint 100, by applying the lower waterproof rubber sheet 150, which is easy to work, as a replacement type, convenience of operation may be provided.

In addition, the upper waterproof rubber sheet 140 is disposed in the upper region of the space formed between the left and right side plates 120A and 120B adjacent to the left and right upper plates 120A and 120B, and provides a waterproof function at the corresponding position. Plays a role.

It is preferable that the upper waterproof rubber sheet 140 can be fixed at a corresponding position by the fixing member 144 via the upper rubber support 142.

In addition, the upper waterproof rubber sheet 140 is bent into a predetermined shape so as to be stretchable, and it is preferable to provide a more effective waterproof function by such a shape or structural feature.

On the other hand, the upper rubber pedestal 142 serves to support one side of the upper waterproof rubber sheet 140.

Further, the fixing member 144 serves to fix the upper waterproof rubber sheet 140 to the left and right side plates 120A and 120B through the upper rubber support 142. At this time, the fixing member 144 is a rivet, and the rivet is fastened from the outside to the inside of the left and right side plates 120A and 120B. Therefore, it is possible to firmly fix the upper waterproof rubber sheet 140.

In addition, the lower waterproof rubber sheet 150 is disposed in a lower region of the space formed between the left and right side plates 120A and 120B so as to be spaced apart from the lower part of the upper waterproof rubber sheet 140 at a predetermined distance, It serves to provide a waterproof function.

The lower waterproof rubber sheet 150 may also be fastened to the corresponding position by the fastening member 154 via the lower rubber pedestal 152.

In addition, the lower waterproof rubber sheet 150 is bent into a predetermined shape so as to be stretchable, and a more effective waterproof function can be provided by such a shape or structural feature.

In particular, it is preferable to provide a flat portion 150a in the middle portion of the lower waterproof rubber sheet 150 to support an induction drain pipe to be described later. By being installed to support the induction drainage pipe on the flat portion 150a, it is possible to stably install the induction drainage pipe structurally.

On the other hand, the lower rubber pedestal 152 serves to support one side of the lower waterproof rubber sheet 150.

In addition, the fastening member 154 serves to fasten the lower waterproof rubber sheet 150 to the left and right side plates 120A and 120B via the lower rubber pedestal 152. At this time, the fastening member 154 is a wrench bolt that is detachably coupled at a corresponding position for replacement of the lower waterproof rubber sheet 150, and the wrench bolts are fastened from the inside to the outside of the left and right side plates 120A and 120B. Accordingly, the lower waterproof rubber sheet 150 can be firmly fixed, as well as the lower waterproof rubber sheet 150 can be easily replaced.

The expansion joint 100 having such a structure can increase durability by preventing secondary defects such as leakage and rust of the lower structure from occurring due to the breakage of the upper and lower waterproof rubber sheets 150.

On the other hand, the expansion joint 100 may install both the upper and lower waterproof rubber sheets 150 as shown in FIG. 5, or only the upper waterproof rubber sheet as shown in FIG. 6.

As shown, the induction drainage unit 300 comprises a perforated pipe (310A, 310B), an induction drain pipe (320), a through hole (330), a fixing bracket (340), and a rainwater induction bracket (350). It is desirable to be.

The perforated pipes 310A and 310B are preferably installed on the left and right sides so that one end is fixed to the outside of the left and right side plates 120A and 120B so that they are buried in the futa concrete part 200, and the perforated pipes 310A and 310B are made of stainless steel. It is preferably composed of.

In addition, both ends of the induction drainage pipe 320 are fixedly installed inside the left and right side plates 120A and 120B so that the perforated pipes 310A and 310B installed on the left and right sides are connected to each other. That is, the induction drainage pipe 320 is installed so as to be disposed in the space formed by the left and right side plates 120A and 120B, and guides water flowing through the perforated pipes 310A and 310B to pass through the interior of the expansion joint. .

At this time, the induction drainage pipe 320 has an expandable structure, and preferably may be a bellows type perforated pipe.

Such an induction drainage pipe 320 is preferably installed to be disposed between the upper waterproof rubber sheet 140 and the lower waterproof rubber sheet 150, which is in the upper waterproof rubber sheet 140 and the lower waterproof rubber sheet 150. Can be protected from external environment.

In addition, the through hole 330 is formed in the left and right side plates 120A and 120B to which the guide drain pipe 320 and the perforated pipes 310A and 310B are fixed so that the guide drain pipe 320 and the left and right perforated pipes 310A and 310B communicate with each other. do. Rainwater may move from the left and right perforated pipes 310A and 310B to the induction drainage pipe 320, or from the induction drainage pipe 320 to the left and right perforated pipes 310A and 310B.

The fixing bracket 340 may be installed on the left and right side plates 120A and 120B so as to be adjacent to the through hole 330 to fix the guide drain pipe 320 and the perforated pipes 310A and 310B.

These fixing brackets 340 are fixed to the left and right side plates, and a first flange 342 in which a through hole 341 is formed to correspond to the through hole 330 in the center, and an annular shape on one surface of the first flange 342 The first coupling protrusion 344, which is formed to protrude into the perforated pipes 310A and 310B and inserted into the ends of the guide drain pipe 320, the first coupling protrusion 344, the perforated pipes 310A, 310B, and the guide drain pipe It is preferable to include a first fixing portion 346 made of fixing bolts or rivets to fix each of the 320.

In addition, the rainwater induction bracket 350 fixes the outer ends of the perforated pipes 310A and 310B, and serves to guide and drain the rainwater that has been moved through the induction drainage pipe 320.

The rainwater induction bracket 350 is fixed to the side of the concrete layer of the bridge upper plate, and formed to protrude in an annular shape from one side of the second flange 352 having a drain hole 351 formed in the center and the second flange 352 A second fixing portion 356 comprising a second coupling protrusion 354 inserted into the end portions of the perforated pipes 310A and 310B, and fixing bolts to fix the second coupling protrusion 354 and the perforated pipes 310A and 310B. ) It is preferable to be configured to include.

In addition, the rainwater guide bracket 350 is preferably provided with a guide portion 358 installed on the opposite side of the second coupling protrusion 354 to guide the rainwater to drain.

This guide part 358 is installed to be connected to a drainage pipe (not shown) provided in the bridge and serves to guide the drained rainwater to the drainage pipe.

The induction drainage unit 300 having such a structure is preferably installed so that the induction drainage pipe 320 and the perforated pipes 310A and 310B are disposed between the plurality of joints 130. That is, the induction drainage pipe 320 and the perforated pipes 310A, 310B of the induction drainage part 300 are preferably installed on the left and right side plates 120A, 120B at an interval of 1.5 to 2.5M along the length direction, and preferably It is desirable to install it at an interval of 1.8M. Accordingly, the induction drainage unit 300 may drain rainwater along the slope of the bridge.

According to the present invention, rainwater drained from the upper part of the bridge is primarily guided by the stainless steel perforated pipe 310A buried in the futa concrete part 200, and the bellows type induction installed inside the expansion joint 100 After passing through the drain pipe 320 and secondarily moving, it is thirdly guided through the stainless steel perforated pipe 310B installed on the other side to allow drainage.

Specifically, when the bridge is installed to have a gradient, since the expansion joint 100 is also installed to be inclined along the gradient of the bridge, the left and right perforated pipes 310A and 310B disposed on both sides of the guided drainage pipe 320 are installed to form an inclination. . That is, the perforated pipe 310A located on one side of the induction drainage pipe 320 is located on the side with a high inclination, and the perforated pipe 310B located on the other side of the induction drainage pipe is located on the side with a low slope.

Therefore, in a bridge installed to have a gradient, rainwater drainage cannot be completely drained to both sides of the bridge, and it flows through the upper part of the bridge along the gradient of the bridge, and the rainwater flowing along the upper part of the bridge is permeated through the futa concrete part 200. After being first flown into the perforated pipe 310A located on the side with a high slope, it is secondarily moved through the induction drain pipe 320 and is thirdly drained through the perforated pipe 310B located on the side with a low slope.

At this time, the rainwater guide bracket 350 coupled to the end of the perforated pipe 310B located on the lower slope is connected to the drain pipe provided in the bridge, thereby finally draining the rainwater drained through the drain pipe.

The technical task of the present invention is achieved by the technical configuration as described above, and although it has been described by the limited embodiments and drawings, the present invention is not limited thereto, and the present invention by those of ordinary skill in the art to which the present invention pertains. It goes without saying that various modifications and variations are possible within the scope of the technical idea of and the claims to be described below.

100-Expansion joint 110A,110B-Left and right upper plates
120A,120B-Left and right side plates 130-Joint
140-Upper waterproof rubber sheet 150-Lower waterproof waterproof sheet
200-Futa concrete part 300-Induction drainage part
310A,310B-Right and left perforated pipe 320-Guided drain pipe
330-Through hole 340-Fixing bracket
350-Rainwater induction bracket

Claims (8)

Expansion joints 100 installed at regular intervals between the upper plate and the upper plate of the bridge;
A futa concrete part 200 made of a water permeable layer so that rainwater can flow in between the expansion joint 100 and the upper plate of the bridge; And
It is installed in the interior of the futa concrete part 200 and the expansion joint 100 at a certain interval, and the rainwater that is permeated from the asphalt layer above the bridge through the futa concrete part 200 and flows in is newly built along the slope of the bridge. Includes; Induction drainage unit 300 for inducing drainage through the interior of the joint 100,
The expansion joint 100 includes: left and right upper plates 110A and 110B that are installed to have a constant interval between the upper plate and the upper plate of the bridge and are approached or spaced apart from each other; Left and right side plates 120A and 120B respectively installed on the bottom surfaces of the left and right upper plates 110A and 110B to form a space portion therein; A plurality of joints 130 connected to the left and right side plates 120A and 120B, respectively, and buried in the futa concrete part 200; An upper waterproof rubber sheet 140 that is installed so that both ends are fixed to the inner side of the left and right side plates 120A and 120B to be disposed in an upper area of the space, and provides a waterproof function at a corresponding position; And a lower waterproof rubber sheet having both ends fixed to the inner side of the left and right side plates 120A and 120B so as to be spaced apart from the bottom of the upper waterproof rubber sheet 140 and disposed in the lower region of the space, and providing a waterproof function at the corresponding position. (150); Including,
The induction drainage unit 300 includes: left and right perforated pipes 310A and 310B having one end fixed to the outside of the left and right side plates 120A and 120B so as to be embedded in the futa concrete unit 200; A stretchable induction drainage pipe 320 disposed in the space by fixing both ends of the left and right side plates 120A and 120B to be connected to the left and right perforated pipes 310A and 310B; A through hole 330 formed in the left and right side plates 120A and 120B to which the induction drainage pipe 320 and the left and right perforated pipes 310A and 310B are fixed so that the induction drainage pipe 320 and the left and right perforated pipes 310A and 310B communicate with each other ; A fixing bracket 340 installed on the left and right side plates 120A and 120B so as to be adjacent to the through hole 330 to fix the induction drainage pipe 320 and the left and right perforated pipes 310A and 310B; And a rainwater induction bracket 350 for fixing the outer ends of the left and right perforated pipes 310A and 310B, and guiding and draining the rainwater moved through the induction drainage pipe 320,
The induction drainage pipe 320 is composed of a bellows type induction drainage pipe 320, and is installed to be disposed between the upper waterproof rubber sheet 140 and the lower waterproof rubber sheet 150,
The fixing bracket 340 may include: a first flange 342 fixed to the left and right side plates 120A and 120B and having a through hole 341 formed at the center thereof to correspond to the through hole 330; A first coupling protrusion 344 formed to protrude from one surface of the first flange 342 in an annular shape and inserted into ends of the left and right perforated pipes 310A and 310B and the guide drain pipe 320; And a first fixing part 346 made of fixing bolts or rivets to fix the first coupling protrusion 344 and the perforated pipe, and the first coupling protrusion 344 and the guide drain pipe 320, respectively,
The rainwater induction bracket 350 includes: a second flange 352 fixed to the side of the concrete layer of the bridge upper plate and having a drain hole 351 formed at the center thereof; A second coupling protrusion 354 formed to protrude in an annular shape from one surface of the second flange 352 and inserted into the ends of the perforated pipes 310A and 310B; And a second fixing part 356 made of fixing bolts to fix the second coupling protrusion 354 and the perforated pipes 310A and 310B. Including, the opposite side of the second coupling protrusion 354 Guide portion 358 for guiding the drainage; is installed to be connected,
The upper waterproof rubber sheet 140 and the lower waterproof rubber sheet 150 are bent in a predetermined shape so as to be stretchable, and the induction drain pipe 320 may be supported in the middle of the lower waterproof rubber sheet 150. It has a flat portion (150a) so that,
The upper waterproof rubber sheet 140 is fixed at a corresponding position by a fixing member 144 via an upper rubber pedestal 142, and the lower waterproof rubber sheet 150 is provided with a lower rubber pedestal 152 as a medium. Doedoe detachably coupled to the corresponding position by the fastening member 154,
The fixing member 144 is a rivet, the rivet is fixed from the outside to the inside of the left and right side plates (120A, 120B),
The fastening member 154 is a wrench bolt that is detachably coupled at a corresponding position for replacement of the lower waterproof rubber sheet 150, and the wrench bolt is fastened from the inside to the outside of the left and right side plates 120A, 120B. An expansion joint device using an induction drain pipe, characterized in that.
delete The method of claim 1,
The induction drainage pipe 320 and the left and right perforated pipes 310A and 310B of the induction drainage part 300 are installed to be disposed between a plurality of joints 130,
The induction drainage pipe 320 and the left and right perforated pipes 310A and 310B of the induction drain 300 are installed on the left and right side plates 120A and 120B at intervals of 1.5 to 2.5M along the length direction. Expansion joint device using.
delete delete delete delete delete

Images