JPH1181239A - Road bridge - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent passing vehicles from being applied with vibration caused by discontinuous beams by providing sliding plates at the end sections of floor boards constituting the beams arranged continuously between bridge piers, overlappingly arranging a connecting plate between both sliding plates, and forming a surface layer section on the connecting plates. SOLUTION: The end section of a floor board 3 is supported the beam hook section 2 of a bridge pier 1 via a support body 4. Sliding plates 8 are fixed to the floor board 3, and a connecting plate 9 is overlappingly arranged between the sliding plates 8. The connecting plate 9 is formed with a sliding face 10 for the sliding plate 8, and it is coupled with the sliding face 7 of the sliding plate 8. A surface layer section 11 is formed on the connecting plate 9. The size change between the floor board 3 and the surface layer section 11 due to expansion/shrinkage caused by heat can be absorbed between the sliding plate 8 and the connecting plate 9, and the size change of the floor board 3 is not transferred to the surface layer section 11. Since the surface layer section 11 is formed on the connecting plate 9, the junctions of the floor boards 3 can be formed into a continuous paved plane.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a road bridge having a structure in which the end of a girder is placed on a pier and the girder is continuously connected.

[0002]

2. Description of the Related Art As shown in FIG. 7 and a plan view showing a connection state of a main part of a conventional road bridge, as shown in FIG. Is fixed via a support 4, and a continuum 5 made of metal is provided at the end of each spar 3, and the continuity of the spar 3 is formed by combining the continuities 5. The combination of the continuum bodies 5 absorbs the expansion and contraction of the temperature of the girder 3, thereby correcting the expansion and contraction of the girder 3 due to the temperature difference between summer and winter, and between daytime and nighttime.

[0003]

According to such a prior art, the continuous girders are independently installed at a distance from each other to absorb a change in dimension due to thermal expansion, and the continuous bodies are separated from each other. Due to the discontinuity, when the traveling vehicle passes through the location, the vehicle generates vibration and noise.

[0004]

Accordingly, the present invention provides a sliding plate at each end of a floor plate constituting a girder continuously arranged between piers, and a connecting plate is overlapped so as to pass between the sliding plates. And a surface layer portion is formed on the connecting plate.

[0005]

Embodiments of the present invention will be described below with reference to the drawings. First Embodiment FIG. 1 is a perspective view of a main part, FIG. 2 is a side view of a main part,
In the figure, reference numeral 1 denotes a pier, and
An end of a floor plate 3 constituting a spar that is continuously arranged at a position is supported via a bearing 4. Although 5 is a partition, some bridge piers are not provided, and any structure may be used.

A concave portion 6 is formed on the upper surface of the end of the floor plate 3, and the concave portion 6 has a substantially wavy sliding surface 7 in which a ridge is formed continuously in the longitudinal direction on the contact surface of the surface. Sliding plate 8
Is fixed. 9 is each floor plate 3 arranged continuously
Is a connecting plate disposed so as to overlap between sliding plates 8 provided at the ends of the sliding plate 8. 10 are formed, and both sliding surfaces 7, 10 are fitted to each other.

The thickness of the sliding plate 8 and the connecting plate 9 fitted and overlapped with each other and the concave portion 6 on the upper surface of the end of the floor plate 3 substantially coincide with each other, so that the floor plate surface becomes flat. . The generally wavy shape of the sliding surfaces 7 and 10 formed on the sliding plate 8 and the connecting plate 9 may be a ridge having any cross-sectional shape, such as a general waveform or a shape that fits each other as shown in the drawing. The cross-sectional shape of both ridges on the sliding surfaces 7 and 10 may be the same or different. It is more preferable that the ridges of the sliding surfaces 7 and 10 have the same height so that the tips of the ridges are in contact with the bottom of the valley.

The sliding surfaces 7, 10 may not be corrugated but may be completely flat on both sliding surfaces. Further, one of the sliding surfaces is flat and the other has a wavy shape or a plurality of projections formed by a ridge. A combination of the deformed sliding surfaces described above may be used. In the case of such a structure, locking portions such as ridges are provided on the sides of the sliding plate 8 and / or the connecting plate 9 so that the sliding surface 10 does not move laterally with respect to the sliding surface 7. Is preferably formed.

The sliding plate 8 and the connecting plate 9 are made of a rigid body made of synthetic resin, metal, concrete or the like. By forming the ends of the floorboard 3 in this manner, the continuity of the floorboard 3 is formed, and by applying the surface layer 11 of the pavement to the surface thereof, it is possible to form the surface layer 11 where the connection portion of the floorboard 3 is also continuous. it can. When applying the surface portion 11, a fall prevention member such as a net may be placed between the end of the connecting plate 9 and the upper surface of the end of the floor plate 3 so that the surface member does not fall.

According to such a configuration, a change in size due to expansion and contraction caused by heat in the floor plate and the surface layer can be absorbed between the sliding plate 8 and the connecting plate 9, so that a change in size of the floor plate can be suppressed. It is not transmitted to the surface layer, and as a result, the connecting portion of the floorboard can also be a continuous pavement surface, so that the traveling vehicle can travel smoothly and without noise.

Second Embodiment This embodiment is an example in which a drainage structure is installed between a pavement surface and a floor plate provided with a sliding plate 8 and a connecting plate 9.
The structure of the connecting plate 9 is the same as that of the first embodiment. FIG. 6 is an explanatory perspective view of a main part showing an embodiment. In the figure, the structure in which the sliding plate 8 and the connecting plate 9 are provided on the floor plate 3 is the same as that of the first embodiment, and therefore the description is omitted. Omitted. In the figure, reference numeral 12 denotes a drain plate disposed on the floor plate 3, which is made of synthetic resin, metal, concrete, or the like. .

As an example of a specific structure of the water intake section 13 and the water guide section 14, as shown in FIG. 0, a slit-shaped intake section 13 of about 1 to 10 mm and a width equal to or less than that of the slit-shaped intake section 13 communicated thereunder. Is formed, for example, about 5 to 20 mm. The space between the water intake portions 13 may be any size as long as it is not clogged with fine aggregate used in the surface layer to be constructed or asphalt in the surface layer.

The shapes of the water intake section 13 and the water introduction section 14 may be innumerable, and may take any form as long as the water intake and water introduction are performed. Although the water guides 14 are formed independently of each other, the water intake 13 and the water guide 14 are integrally formed by grooves or the like, and the water intake 13 is used as an open end of the water guide 14.
There may be a structure without any.

A drainage (sound absorbing) surface layer portion 11 is laid on the drainage plate 12 as described above, and the water guide portion 14 is opened to the side of the road. It is connected to a drain pipe (drain gutter) provided on the side of the road. Note that clogging of the water intake unit 13 can be prevented by installing a wire mesh, cloth, a punched plate, or the like between the drainage plate 12 and the surface layer, that is, on the upper surface of the water intake unit 13 as necessary.

The drainage plate 12 may be arranged in any manner as long as drainage is sufficiently performed. The drainage plate 12 may be formed on the entire surface, may be formed at regular intervals, and may be formed at a center line. May be formed alternately at the boundary. According to such a configuration, water such as rainwater on the road surface passes through a continuous gap in the surface layer portion 11 from the water intake portion 13 of the drainage plate 12 to the water conveyance portion 14.
And smoothly discharged to the drain pipe.

Also in this embodiment, the sliding plate 8 and the connecting plate 9 are provided at the end of the floor plate 3 on which the drainage plate 12 is placed, so that the dimensional change due to expansion and contraction caused by heat on the floor plate and the surface layer can be performed. Since it is possible to absorb between the plate 8 and the connecting plate 9, a change in the size of the floor plate is not transmitted to the surface layer, and as a result, the connecting portion of the floor plate can be a continuous pavement surface, As a result, the running vehicle can run smoothly and without noise.

[0017]

According to the present invention described in detail above, a sliding plate is provided at each end of a floor plate constituting a girder continuously arranged between piers, and a connecting plate is provided so as to pass between the two sliding plates. By slidably arranged, the change in dimensions due to expansion and contraction caused by heat in the floor plate and the surface layer can be absorbed between the slide plate and the connecting plate, so the change in the dimensions of the floor plate is applied to the surface layer. As a result, there is an effect that the connecting portion of the floorboard can be a continuous pavement surface by forming the surface layer portion on the connecting plate as well.

[Brief description of the drawings]

FIG. 1 is an explanatory perspective view of a main part showing a first embodiment.

FIG. 2 is an explanatory side view of a main part.

FIG. 3 is an explanatory view showing an example of a sliding surface of a sliding plate and a connecting plate.

FIG. 4 is an explanatory view showing an example of a sliding surface of a sliding plate and a connecting plate.

FIG. 5 is an explanatory view showing an example of a sliding surface of a sliding plate and a connecting plate.

FIG. 6 is an explanatory perspective view of a main part showing a second embodiment.

FIG. 7 is an explanatory perspective view of a main part showing a conventional example.

FIG. 8 is a plan view of a main part.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 bridge pier 2 digits hanging portion 3 digits 6 concave portion 7 sliding surface 8 sliding plate 9 connecting plate 10 sliding plate 11 surface layer 12 drain plate 13 water intake section 14 water conduction section

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Yoshio Kuri 3-2-19, Kishiri, Nishinari-ku, Osaka-shi, Osaka (72) Inventor Atsushi Fuchizawa 3-14-9, Tomiokita, Nara-shi, Nara (72) Inventor Naoki Inaoka 5-1-7 Higashiyama Honshinmachi, Yao, Osaka

Claims (7)

[Claims] 1. A sliding plate is provided at each end of a floor plate constituting a girder continuously arranged between piers, and connecting plates are overlapped and arranged so as to pass between the two sliding plates. A road bridge characterized by forming a surface layer. 2. The road bridge according to claim 1, wherein a drainage plate having a water intake portion formed from the surface and a water guide portion communicating with the water intake portion is disposed below the surface layer portion. 3. The sliding surface according to claim 1, wherein a substantially wavy sliding surface is formed by continuously forming ridges in the longitudinal direction on opposing surfaces of the opposing sliding plate and connecting plate. And road bridge. 4. The road bridge according to claim 1, wherein one of the abutting surfaces of the opposing sliding plate and the connecting plate is a deformable sliding surface, and the other abutting surface is a flat surface. 5. The road bridge according to claim 1, wherein the contact surfaces of the opposing sliding plate and connecting plate are flat. 6. The road bridge according to claim 1, wherein the sliding plate and / or the connecting plate are made of concrete. 7. The road bridge according to claim 1, wherein the sliding plate and / or the connecting plate are made of iron.