JP2583726Y2 - Communication device - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a communication device provided between structures where relative displacement occurs during an earthquake or the like.

[0002]

2. Description of the Related Art In recent years, effective use of land has been attempted.
For example, a plurality of piles may be cast in a retarding pond such that each pile head has a predetermined height from the bottom of the pond, and an artificial ground may be constructed over the pile heads of the plurality of piles. Since the artificial ground is supported by a plurality of piles at a predetermined height from the bottom of the retarding pond, the shed does not impair the retarding function of the retarding pond. By providing a park or the like, this retarding pond can be used effectively. In addition, since only a plurality of piles are set in this retarding basin, when there is no water in this retarding basin, the bottom of the pond can be used.

FIG. 3 is a sectional view showing an example of an artificial ground provided on a retarding pond. The artificial ground 32 shown in this figure,
The piles 36 and 38 are cast on the pond bottom 31 of the retarding pond, and protrude from the pond bottom 31.
They are provided at predetermined intervals 33 and 37, respectively. Of these artificial grounds 32, 36, 38, sheds 34, 40 are provided on the artificial grounds 32, 38, respectively. The artificial ground 36 is used as a road.

The artificial grounds 32, 36, 38 are provided at predetermined intervals 33, 37, respectively. this is,
When these artificial grounds 32, 36, and 38 are integrally formed, the integrated large artificial ground undergoes a large expansion and contraction due to heat or the like, which may cause cracks in the artificial ground, and the like. 33 and 37 are for absorbing the expansion and contraction. When using the artificial grounds 32, 36, 38, the artificial grounds 32, 3
A communication device (not shown) is provided to communicate freely between the members 6 and 38 and to absorb the expansion and contraction.

[0005]

[Problem to be solved by the invention] These artificial ground 3
Since 2, 36 and 38 are supported by the plurality of piles 30 at a predetermined height from the pond bottom 31, they are more likely to shake significantly during an earthquake than a structure directly constructed on natural ground. When the artificial grounds 32, 36, 38 shake greatly, their end faces may collide with each other and be damaged,
To prevent this, it is necessary to widen the intervals 33, 37 between the artificial grounds 32, 36, 38. 2. Description of the Related Art Conventionally, there has been known a communication device which can be extended and contracted by deformation of rubber or the like in order to communicate freely at a wide interval, but this communication device is very expensive. Conventionally, a communication device having a sliding structure using an iron plate or the like is also known, but if the communication device is used at a wide interval, the iron plate or the like is bent,
Therefore, there is a problem that traffic becomes difficult.

SUMMARY OF THE INVENTION In view of the above circumstances, an object of the present invention is to provide a communication device which can communicate freely at wide intervals and can be manufactured at low cost.

[0007]

According to the present invention, there is provided a communication device for supporting first and second artificial grounds supported on independent foundations and having end faces facing each other with a predetermined gap therebetween. In the communication device that communicates freely between the
The first and second artificial grounds each have a first concave portion formed across the first and second artificial grounds at opposing portions of the first and second artificial grounds,
The second artificial ground has a second concave portion which is shallower than the first concave portion and which extends to the second artificial ground side continuously with the first concave portion, and fits into the first concave portion. The first artificial ground is fixed to the first artificial ground, and the first artificial ground side end face between the second artificial ground side end face and the second artificial ground side end face of the first concave portion is located at the time of an earthquake. And a plurality of plate members having a gap equal to or greater than a predetermined width determined by the relative maximum horizontal displacement of the second artificial ground and slidably mounted on the second artificial ground over the predetermined width or more. And a box member having a depth corresponding to the depth of the first concave portion, which is erected and assembled in a mesh shape, and fixed to the box body, the end surface of the second concave portion side and the second A gap narrower than the predetermined width between an end surface of the second concave portion on a side remote from the first concave portion; It is placed on the second recess has,
The box body and the second box are flush with the upper surface of the second artificial ground.
And a plate member slidable beyond the second concave portion in the event of an earthquake.

[0008]

In the communication device of the present invention, a box member is provided in a first concave portion formed at a portion opposite to the first and second artificial grounds, and the box material is fixed to the first artificial ground. Have been.
Also, this box material has its end face on the second artificial ground side facing the first artificial ground.
And a gap of a predetermined width or more between the concave portion and the end surface on the second artificial ground side. The predetermined width is a width determined by the relative maximum horizontal displacement of the first and second artificial grounds during an earthquake. For this reason, even if a relative maximum horizontal displacement occurs between the first and second artificial grounds during an earthquake, the end surface of the box material on the second artificial ground side is formed by the first concave portion of the first concave portion. 2 does not hit the end face on the artificial ground side, so that the box material is not damaged during an earthquake. Further, since the box material is slidably mounted on the second artificial ground over the predetermined width or more, the box material does not come off from the first recess even during an earthquake.

Further, the communication device of the present invention includes a plate fixed to the box member and placed in the second concave portion, and the plate member passes over the second concave portion during an earthquake. Since it is configured to be slidable, the plate material exceeds the second concave portion as necessary during an earthquake, and therefore the plate material does not break during an earthquake. This plate material has only a gap smaller than the predetermined width between the end surface of the second concave portion and the end surface of the second concave portion on the side remote from the first concave portion. Due to the gap, the impact generated when passing the vehicle or the like passing through the communication device of the present invention is small.

Further, since the box member provided in the communication device of the present invention has a plurality of plates erected and assembled in a mesh shape, the box member has a greater bending rigidity than a single plate, thereby providing a wide gap. Even if the communication device of the present invention is provided, the box material is prevented from bending.

[0011]

Embodiments of the present invention will be described below. FIG. 1 is a sectional view of a communication device according to an embodiment of the present invention, and FIG.
FIG. 2 is a plan view showing a part of the communication device shown in FIG. 1. The communication device 1 includes a grating box 3 in which a plurality of plates are erected and assembled in a mesh shape, and an extension plate 5 which is an iron plate. A commercially available grating box 3 can be used. The first in which the communication device 1 is provided
A first concave portion 10 is formed in the second artificial ground 7, 9 over the two artificial grounds 7, 9. Further, the second artificial ground 9 is continuous with the first concave portion 10,
A second concave portion 11 shallower than the first concave portion 10 is also provided. The surface of the first artificial ground 7 where the first recess 10 is formed is covered with a first plate 7a, and the first and second recesses 1 of the second artificial ground 9 are provided.
The surface where 0 and 11 are formed is covered with a second plate 9b.

The grating box 3 is fitted into the first recess, and the upper surface thereof is flush with the upper surfaces of the first and second artificial grounds 7 and 9. The bottom end of the grating box 3 near the left end in FIG. 1 is fixed to the first artificial ground 7 by bolts 8. Further, between the right end surface 3a of the grating box 3 in FIG. 1 and the end surface 9c of the second artificial ground 9, a gap having a predetermined width or more is provided. This predetermined width is
The width is determined based on the relative maximum horizontal displacement of the first and second artificial grounds 7 and 9 during an earthquake. A sliding plate 12 is fixed to the bottom of the grating box 3 near the right end in FIG. 1, and the grating box 3 is placed on the second artificial ground 9 via the sliding plate 12 by a predetermined width or more. Are slidably mounted over the The first end of the extension plate 5 is welded to the upper end of the end surface 3 a of the grating box 3. The second end 5a of the extension plate 5 facing the welded one end is the second recess 1
Extends to 1. The second end 5a is formed with a taper that forms an acute angle with the bottom surface. The second end 5a of the extension plate 5 faces the end surface 11a of the second concave portion with a gap smaller than the above-described predetermined width determined based on the maximum horizontal displacement. Further, a steel material 13 is provided on the end surface 11a of the second concave portion, and the steel material 13 includes
A taper that forms an acute angle with the bottom surface is formed.

As described above, the grating box 3 of the communication device 1 has its end face 3a and the end face 9 of the second artificial ground 9 attached thereto.
c, and is slidably mounted on the second artificial ground 9 with the above-mentioned predetermined width.
The end face 3a of the
There is no collision with the end face 9c, so that the grating box 3 is not damaged. And grating box 3
Is placed on the second artificial ground 9 over the predetermined width described above, so that it does not come off from the first recess 10 even during an earthquake.

The extension plate 5 has a tapered second end 5a on the side placed on the second artificial ground 9. Similarly, a taper is formed on the end surface 11a of the second concave portion. Between the second end 5a of the extension plate 5 and the taper of the end face 11a of the second recess 11, there is only a gap smaller than the above-mentioned predetermined width.
a, since the end face 11a is formed with a taper, the extension plate 5 easily exceeds the second recess 11 during an earthquake,
Therefore, the extension plate 5 is not damaged. Also, as described above, since there is only a gap narrower than the predetermined width between the end portion 5a and the end surface 11a, when the vehicle passes through the communication device 1 (not shown) or the like, The resulting shock is small.

Also, the first concave portion 10 and the second concave portion 11
However, in the direction perpendicular to the paper surface of FIG. 1, that is, in the left-right direction of FIG. 2, the communication device 1 spreads over the paper surface of the grating box 3 in the left-right direction of FIG. It is preferable because it can cope with not only the displacement of the first and second artificial grounds 7 and 9 but also the displacement of the artificial grounds 7 and 9 in the left-right direction in FIG.

Here, the second end 5a of the extension plate 5
The taper formed on the end face 11a of the second concave portion is not always necessary, but the second taper is formed when a large earthquake occurs.
Is preferably formed so that the end 5a can easily exceed the end face 11a. Moreover, since the above-mentioned grating box 3 can use a commercially available thing, this communication device 1 can be manufactured at low cost.

Further, since the above-mentioned grating box 3 has a plurality of plates erected and assembled in a mesh shape,
Without bending, the communication device 1 can communicate freely even in a wide gap.

[0018]

As described above, in the communication device of the present invention, as described above, the end face of the box material on the second artificial ground side is in contact with the end face of the second artificial ground on the second concave side. Since the box material is placed on the second artificial ground with a gap larger than the width, the box material does not collide with the end surface of the first concave portion, and the box material is not damaged. In addition, this box material
Is slidably mounted on the artificial ground over a predetermined width or more, so that it does not come off from the first recess even during an earthquake.

The communication device of the present invention includes a plate fixed to the box member. The plate is placed in the second recess and is slidable over the second recess during an earthquake.
Above, so that the plate is not damaged.
Furthermore, since the box member provided in the communication device of the present invention is a plurality of plates erected and assembled in a mesh shape, the box material does not bend, thereby providing the communication device of the present invention. Can communicate freely even in a wide gap.

Further, since the communication device of the present invention is composed of the box material and the plate material, the structure is simple and the manufacturing cost is low.

[Brief description of the drawings]

FIG. 1 is a sectional view showing a communication device according to an embodiment of the present invention;

FIG. 2 is a plan view showing a part of the communication device shown in FIG.

FIG. 3 is a cross-sectional view of an example of artificial ground provided on a retarding pond.

[Explanation of symbols]

 Reference Signs List 1 communication device 3 grating box 5 extension plate 7 first artificial ground 9 second artificial ground 10 first concave portion 11 second concave portion

Claims (1)

(57) [Scope of request for utility model registration] 1. A communication device which is supported on mutually independent foundations and whose end faces communicate with each other at a predetermined interval so as to be able to freely pass between first and second artificial grounds, wherein the first and second artificial grounds are provided. The artificial ground has a first concave portion formed over the first and second artificial grounds at opposing portions of the first and second artificial grounds,
The second artificial ground has a second concave portion shallower than the first concave portion, the second concave portion extending to the second artificial ground side continuously with the first concave portion, and is fitted into the first concave portion. The first artificial ground is fixed to the first artificial ground, and the second artificial ground side end surface is connected to the first artificial ground.
A gap having a predetermined width or more defined by a relative maximum horizontal displacement of the first and second artificial grounds during an earthquake between the concave surface of the second artificial ground and an end surface of the second artificial ground side, A box material having a depth corresponding to the depth of the first concave portion, which is slidably mounted on the artificial ground over the predetermined width or more and is erected and assembled in a mesh-like manner. And a gap narrower than the predetermined width between an end surface of the second concave portion and an end surface of the second concave portion on a side away from the first concave portion. And is placed in the second concave portion and spreads between the box and the second concave portion to be flush with the upper surface of the second artificial ground, and slides over the second concave portion during an earthquake. A communication device comprising a movable plate member.