JP5522702B1 - Bridge floor burial drainage device and bridge floor slab new construction or repair method using the device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a bridge floor board buried drainage device capable of installing a smooth drainage system.
A drainage device (10) embedded in a bridge floor plate includes a main body (12) having a bottom plate and an open upper end, a first spacer (14) accommodated in order from the bottom in the main body, and a through hole. A first eye plate (16) with a second spacer (18), a second eye plate (20) with a through-hole, and a drain pipe connected to the lower part of the main body so as to be in fluid communication with the first spacer ( 22).
[Selection] Figure 1

Description

  The present invention relates to a drainage device embedded in a bridge floor plate (in particular, a location where an expansion joint of a bridge is located), and a bridge floor plate new installation or repair method using the device.

  The bridge has a floor panel made of reinforced concrete and an asphalt pavement layer installed on the upper surface of the floor board. In bridges, it is indispensable to install a wastewater treatment system in order to properly treat rainwater and maintain smooth running of the vehicle. As shown in FIG. 7, the conventional typical wastewater treatment system is configured to install a drain hole in a concrete floor board, guide rainwater that has penetrated the asphalt layer to the drain hole, and drain it to a desired location. It had been.

  However, in the conventional waste water treatment system as shown in FIG. 7, it is necessary to perforate concrete, but there is a disadvantage that it is not easy to place the drain hole at a desired location because the reinforcing bar becomes an obstacle. It was. In particular, rebars are densely packed around the place where the expansion joints of the bridge are located. Therefore, in renovation work that replaces expansion joints, there is a risk of damage to the rebars due to drilling, so the renovation work should be carried out smoothly. It was a big obstacle.

  The present invention has been developed in view of such a situation, and provides a bridge floor board embedded drainage device that enables a smooth drainage system to be installed, and a bridge floor board new construction or repair method using the device. The purpose is that.

  A bridge floor burial drainage device according to claim 1 of the present application has a bottom plate, a main body having an open upper end, a first spacer accommodated in order from the bottom in the main body, and a first eye plate with a through hole. , A second spacer, a second eye plate with a through hole, and a drain pipe connected to the lower portion of the main body so as to be in fluid communication with the first spacer.

  The bridge floor buried type drainage device according to claim 2 of the present application is the device according to claim 1, wherein the main body is provided with a pair of attachment portions for attaching the drainage device to a desired location in the bridge. The portion extends outward substantially in the horizontal direction and has a plate-like form provided with a through hole.

  The bridge floor burial drainage device according to claim 3 of the present application is the device according to claim 1 or 2, wherein the drainage pipe is disposed at a predetermined interval from the metal outer pipe and the inner surface of the outer pipe. It is characterized by having a double tube structure comprising an inner tube made of rubber.

The bridge floor board new construction or repair method using the drainage device according to claim 2 described in claim 4 of the present application is a pair of reinforcing bars or construction anchors in a location where the drainage device is to be installed. Fixing the male threaded round bar, and passing the through hole of the attachment part of the drainage device through the male threaded round bar and fixing the drainage device to a desired height using a nut. The drainage from the asphalt layer by attaching the drainage pipe to the drainage device, extending the tip of the drainage pipe to a desired location, and connecting the end of the water collection pipe from the asphalt layer to the second eye plate Is guided to the drainage device, and drained from the drainage pipe to the desired location.

  According to the present invention, since the main body serves as a formwork by arranging the main body at a desired location in the bridge, there is no risk of damaging the reinforcing bars, and the drainage system can be installed smoothly. Further, by making the drain pipe a double pipe structure, it is possible to prevent damage to the drain pipe (and therefore concrete) due to water freezing in winter. Furthermore, in the method of the present invention, it is only necessary to pass the drainage pipe between the expansion and contraction devices, and it is not necessary to drill the concrete and install the drainage pipe, so that the construction can be simplified.

1A is a perspective view of a drainage device according to a preferred embodiment of the present invention as seen from one direction, and FIG. 1B is a perspective view of the drainage device of FIG. 1 as seen from another direction. . It is a disassembled perspective view of the drainage device of FIG. It is a disassembled perspective view of the drainage apparatus which concerns on another preferable embodiment of this invention. 4 (a) is a partial cutaway view of a drain pipe attached to the drainage device of FIG. 1, FIG. 4 (b) is a cross-sectional view taken along line 4b-4b of FIG. 4 (a), and FIG. c) is the figure which showed the attachment location to the drainage device of the drain pipe of 4 (a). It is the figure which showed the aspect which attaches the drainage device of FIG. 1 to the desired location of a bridge floor board. It is the schematic diagram which showed the state which installed the drainage device in the expansion joint. It is the figure which showed the conventional typical waste water treatment system.

  Next, a bridge floor board embedded drainage apparatus (hereinafter simply referred to as “drainage apparatus”) according to a preferred embodiment of the present invention will be described in detail with reference to the drawings. 1A is a perspective view of a drainage device according to a preferred embodiment of the present invention as seen from one direction, and FIG. 1B is a perspective view of the drainage device according to a preferred embodiment of the present invention from another direction. FIG. 2 is an exploded perspective view of a drainage device according to a preferred embodiment of the present invention. The drainage device generally indicated by reference numeral 10 in FIGS. 1A and 1B includes a main body 12.

  The main body 12 is disposed so as to be orthogonal to the rectangular bottom plate 12a, the pair of first side plates 12b, 12c facing each other, and the first side plates 12b, 12c, and the second side plate having the same height as the first side plates 12b, 12c. 12d and the second side plate 12d are arranged so as to be orthogonal to the first side plates 12b and 12c, and the height H (see FIG. 2) is lower than the first side plates 12b and 12c (typically, the first side plates 12b and 12c). Side plates 12b and 12c, and a third side plate 12e (about half the height of the second side plate 12d).

  A cylindrical discharge port 12f for attaching a drain pipe 22, which will be described in detail later, is provided at the lower portion of the second side plate 12d, and a female screw 12f1 is provided at the distal end side of the discharge port 12f. Preferably, each of the first side plates 12b and 12c is provided with a mounting portion 12g that extends substantially outward in the horizontal direction and is used when the drainage device 10 is installed at a desired location. As shown in FIG. 2 and the like, the attachment portion 12g has a plate-like form, and a through hole 12g1 is provided at the center. In addition, each above-mentioned component of the drainage apparatus 10 is formed with suitable materials, such as stainless steel.

  The drainage device 10 is also disposed above the first eye plate 16, the first spacer 16 disposed above the first spacer 14, the first spacer 14 accommodated inside the main body 12, and the main body 12. The second spacer 18 accommodated inside the second spacer 18 and the second eye plate 20 disposed above the second spacer 18 are provided.

  The first spacer 14, the first eye plate 16, the second spacer 18, and the second eye plate 20 have a planar shape and dimensions that can be accommodated in the main body 12. Further, the height obtained by adding the thickness of the first spacer 14 and the thickness of the first eye plate 16 is formed to be slightly lower than the height H of the third side plate 12e as shown in FIG. Yes. Thereby, the 1st spacer 14 and the 1st eye plate 16 will be stored in the 1st side plates 12b and 12c, the 2nd side plate 12d, and the 3rd side plate 12e. The first spacer 14 and the second spacer 18 are made of a suitable water-permeable material (for example, stainless wool material).

  A plurality of through holes 16 a are formed in the first eye plate 16. The second eye plate 20 is disposed so as to be orthogonal to the rectangular top plate 20a, the pair of opposed first side plates 20b, 20c arranged to extend downward from the top plate 20a, and the first side plates 20b, 20c, A second side plate 20d having the same height as the first side plates 20b and 20c, and a third side plate 20e disposed opposite the second side plate 20d so as to be orthogonal to the first side plates 20b and 20c, The third side plate 20e is provided with a notch 20e1 for guiding the wastewater from the asphalt layer into the drainage device 10 through the water collecting pipe. The second eye plate 20 is placed on the top of the main body 12 and also serves as a lid. In addition, the 1st eye plate 16 and the 2nd eye plate 20 are formed with suitable materials, such as stainless steel.

  The drainage device 10 further includes a drain pipe 22 for guiding drainage from the drainage device 10 to a desired location. One end of the drain pipe 22 is connected to the discharge port 12f of the main body 12 by an appropriate fastener such as a nut.

  Preferably, the drain pipe 22 is a double pipe structure comprising an outer pipe 22a made of metal (for example, stainless steel), and an inner pipe 22b made of rubber arranged at a predetermined distance d from the inner surface of the outer pipe 22a. have. In cold districts, the water accumulated in the drainage pipe freezes and expands in the winter, and the drainage pipe may be destroyed and the concrete structure may be damaged. By adopting the double pipe structure as described above, the inner pipe 22b Even if the water accumulated inside freezes, there is a gap between the outer tube 22a and the inner tube 22b, so that the outer tube 22a is not destroyed and the concrete structure is not damaged. The outer tube 22a is preferably a flexible tube so that it can be easily guided to a desired location.

  Next, with reference to FIG. 5 and FIG. 6, the bridge floor board repair method using the drainage apparatus 10 comprised as mentioned above is demonstrated. First, a pair of male threaded round bars are fixed by welding or the like to a reinforcing bar at a location in the bridge where the drainage device 10 is to be installed (see FIG. 5A). Next, the through hole 12g1 of the mounting portion 12g of the drainage device 10 is passed through the round bar with a male thread, and the drainage device 10 is fixed to a desired height using a nut (see FIG. 5B). At that time, the drainage pipe 22 is attached to the drainage apparatus 10, the tip of the drainage pipe 22 is passed through the play of a bridge telescopic device (not shown) and extended to a desired location, and the end of the water collection pipe from the asphalt layer is connected to the drainage pipe 10. Fit into the notch 20e1 of the second plate 20e. By doing in this way, the waste_water | drain from an asphalt layer can be guide | induced to a desired location and it can process, without damaging a reinforcing bar. FIG. 6 is a schematic view showing a state in which the drainage device 10 is installed on the expansion joint. In addition, in FIG. 2, the drainage path is shown by the white arrow.

  In the above example, the pair of male threaded round bars is fixed to the reinforcing bar, but the pair of male threaded round bars may be fixed to a construction anchor (not shown) fixed to the concrete portion. Further, in the above example, the description is made exclusively in relation to the repair work of the bridge floor plate, but the present method may be applied to the new bridge construction work.

  The present invention is not limited to the above-described embodiments, and various modifications can be made within the scope of the invention described in the claims, and these are also included in the scope of the present invention. Needless to say, it is something.

  For example, in the above embodiment, the main body 12 has a cubic or rectangular parallelepiped box shape. However, as shown in FIG. 3, the main body 12 may be formed in a cylindrical shape. That is, the drainage device shown in FIG. 3 is arranged above the cylindrical main body 12 'having the bottom plate 12'a, the first spacer 14' accommodated in the main body 12 ', and the first spacer 14'. A first eye plate 16 ', a second spacer 18' disposed above the first eye plate 16 'and housed in the main body 12', and a second spacer 18 'disposed above the second spacer 18'. The first eye plate 16 'and the second eye plate 20' are provided with a plurality of through holes 16'a and 20'a, respectively. Further, the main body 20 'is provided with a cylindrical discharge port 12'f for attaching the drain pipe 22 and an attachment portion 12'g used when installing the drainage device 10 at a desired location. In addition, you may shape a main body in the shape of a polygonal column.

DESCRIPTION OF SYMBOLS 10 Bridge floor buried type drainage device 12, 12 'Main body 12a Bottom plate 12b, 12c First side plate 12d Second side plate 12e Third side plate 12f, 12'f Discharge port 12g, 12'g Mounting portion 12g1, 12'g1 Through hole 14 , 14 '1st spacer 16, 16' 1st eye plate 18, 18 '2nd spacer 20, 20' 2nd eye plate 22 Drain pipe 22a Outer tube 22b Inner tube

Claims (4)

A drainage device embedded in a bridge floor plate,
A main body having a bottom plate and having an open upper end;
A first spacer, a first eye dish with a through hole, a second spacer, and a second eye dish with a through hole, which are accommodated in order from the bottom in the main body;
A drain pipe connected to the lower part of the main body so as to be in fluid communication with the first spacer;
A device characterized by comprising:   The main body is provided with a pair of attachment portions for attaching the drainage device to a desired location in the bridge, and the attachment portions extend in a substantially horizontal direction and have a plate-like form provided with a through hole. The apparatus according to claim 1, wherein:   The said drainage pipe has a double pipe structure which consists of a metal outer pipe | tube and the rubber inner pipe | tube arrange | positioned at predetermined intervals with the inner surface of the said outer pipe | tube. The device described in 1. It is a bridge floor board new construction or repair method using the drainage device according to claim 2 ,
Fixing a pair of male threaded round bars to a reinforcing bar or construction anchor in a bridge where the drainage device is to be installed;
Passing the through hole of the mounting portion of the drainage device through the round bar with the male thread, and fixing the drainage device to a desired height using a nut,
By attaching the drainage pipe to the drainage device, passing the tip of the drainage pipe through the play of the telescopic device to a desired location, and connecting the end of the water collecting pipe from the asphalt layer to the second eye plate, A refurbishment method characterized in that drainage from the asphalt layer is guided to the drainage device and drained from the drainage pipe to the desired location.

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