JPH0643004U - Sidewalk version - Google Patents

Abstract

(57) [Summary] [Purpose] To make it possible to construct sidewalks of various widths by using sidewalk plates of a certain size. [Structure] Upper and lower tiers 20 and 21 are formed at the widthwise ends of the sidewalk plate 19, respectively. Then, the step portions 20 and 21 of the sidewalk plates 19 adjacent to each other in the width direction are overlapped with each other, and the overlapping margin e is adjusted according to the width F.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a sidewalk plate in which a plurality of sidewalks are arranged in the width direction to form a sidewalk.

[0002]

[Prior art]

 When a sidewalk or a bicycle path is installed at a place where it is difficult to increase the width of the road such as a road along a river or a higher road due to embankment, etc., the sidewalk is constructed to extend from the end of the road. . For example, Japanese Utility Model Publication No. 57-9444 proposes an assembly road using steel materials, etc. This assembly road fixes the base end of a narrow girder material to the end of the road, Are provided at equal intervals along the vertical direction, the lower part on the tip side of this girder is supported by a pillar, and a plurality of laying bodies are laid side by side in the width direction and laid on the girder. Are abutted on the girder to form a sidewalk. In addition, as shown in FIG. 7, such a prefabricated sidewalk made of concrete is provided with foundation concretes 1 and 2 at the end of the road A and the lower part of the shoulder B, respectively. The base end of the narrow girder material 3 is fixed to the basic concrete 1 at the end, and the lower end of the girder material 3 is supported by the pillars 4 standing on the basic concrete 2 to form a plurality of precast concrete sidewalk plates. 5 are arranged in the width direction and laid on the girder material 3, and the end faces in the length direction of the sidewalk plate 5 are abutted on the girder material 3 to form a sidewalk.

[0003]

[Problems to be solved by the device]

 In the above-mentioned conventional assembly sidewalk, the sidewalk is not limited to steel or concrete, and the plurality of laying bodies or sidewalk plates 5 are arranged in a plurality of width directions to form a sidewalk. By the way, in such a prefabricated sidewalk, sidewalks having various widths F are formed, but conventionally, the width of the sidewalk plate 5 has to be changed each time the width F is changed. That is, in FIG. 7, the width F is 2000 mm, the width of the left sidewalk plate 5 is 1300 mm, and when the width F is set to 2200 mm using the sidewalk plate 5 of 1300 mm, the width of the right sidewalk plate 5 is It was necessary to mold the sidewalk slab 5 with different width dimensions depending on the difference in the width F, such as molding by 200 mm larger, and a formwork for that was also required, which hindered the cost reduction of the sidewalk slab 5. In addition, this type of sidewalk is not limited to straight roads, but is also applied to curved roads. To construct the sidewalk slab 5 along a curved road, cut the lengthwise end of the sidewalk slab 5 diagonally on site. Or, at the factory, it is necessary to form the lengthwise end part at an angle in advance, which is not suitable for the construction of curved roads. Furthermore, even on the same sidewalk, the width F changes. In order to carry out the construction, it was necessary to perform separate processing such as cutting the width dimension of the sidewalk slab 5.

Therefore, an object of the present invention is to provide a sidewalk plate capable of forming sidewalks of various widths.

[0005]

[Means for Solving the Problems]

 The present invention is a sidewalk plate in which a plurality of sidewalks are arranged in the width direction to form a sidewalk.

[0006]

[Action]

 By forming the width of the sidewalk slab to a standard size and adjusting the overlapping margin of the overlapping step portions of the adjacent sidewalk slabs, sidewalks having different width dimensions can be formed.

[0007]

【Example】

 Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. 1 to 5 show a first embodiment of the present invention, in which A is a road formed along a river or by embankment, and along a shoulder B of this road A. An assembly sidewalk is constructed. In this assembly sidewalk, basic concrete 11 and 12 are placed at the end of road A and the lower part of shoulder B, and the base end of wide precast concrete girder material 13 is added to the basic concrete 11 at the end of road A. Are fixed with anchor bolts 14 at an interval C of 3000 mm, the lower end of the girder material 13 is supported by columns 15 standing on the foundation concrete 12 of the road shoulder B, and the precast concrete The front end side of the girder member 13 is fixed to the support column 15 made of, via an anchor bolt 16. Further, the girder width G of the girder material 13 is formed to be wide, for example, 700 mm, and the upper surface of the girder material 13 constitutes a concrete placing surface 13A. Further, rubber supporting members 17 and 18 are interposed between the foundation concrete 11 and the girder member 13, and between the pillar 15 and the girder member 13, respectively. The precast concrete sidewalk slabs 19 laid between the above-mentioned girders 13 are pre-tensioned in the length direction by PC steel materials not shown in the figure. Upper and lower step portions 20 and 21 as superposed step portions are formed at the ends, respectively, and the upper and lower step portions 20 and 21 have superposed surfaces 20A and 21A which are superposed on each other. The width D of the sidewalk slab 19 is, for example, 500 mm, and the width E of the steps 20A and 21A is 200 mm, for example, and the overlapping surfaces 20A of the upper and lower steps 20 and 21 of the adjacent sidewalk slabs 19, The lengthwise end faces 22 of the sidewalk slabs 19 are placed on the girders 13 with an adjustment interval g therebetween. In the figure, 23 is a joint material made of mortar concrete or the like filled between the upper and lower steps 20 and 21 and on the lower step 21, and 24 is a concrete placing surface of the end faces 22 and 22 of the sidewalk plate 19 and the upper surface of the girder 13. It is a joint material made of cast-in-place concrete or the like filled between 13A. Further, 25 is a guardrail which is the boundary between the road A and the sidewalk, 26 is a handrail, and 27 is a pavement layer such as asphalt or concrete.

Next, a method of constructing the sidewalk slab having the above structure will be described. First, when constructing the sidewalk slab 19 on the straight road A, a plurality of, for example, four sidewalk slabs 19 are arranged as shown in FIGS. 1 to 4, and the longitudinal end face 22 of the sidewalk slab 19 is a beam material 13. A predetermined adjustment interval g, for example, about 250 mm is opened and placed on the top. Further, in the width direction, the lower step portion 21 at the left end in FIG. 1 is arranged with the superposed surface 21A facing upward, and the adjacent sidewalk plates 19 and 19 are superposed surfaces 20A and 21A of the upper and lower step portions 20 and 21. The width F can be adjusted by superposing and arranging with each other and adjusting the overlapping margin e. 1 to 4, the overlap margin e is set to approximately 133 mm. For example, if the overlap margin e is made equal to the width E of the step portions 20 and 21, that is, the joints of the sidewalk plates 19 and 19 adjacent to each other. When the distance is 0 mm, the sidewalk width H is 2200 mm, and when the overlap margin e is about 0 mm, the sidewalk width H 2 is about 3200 mm, and the width F of the sidewalk can be greatly adjusted. In FIGS. 1 and 4, the width F shows the width of the sidewalk H from which the handrail 26 is attached, for example, 300 mm. Then, the joint material 23 is filled between the upper and lower step portions 20 and 21 and on the lower step portion 21, and the joint material 24 is filled between the longitudinal end surfaces 22 and 22 and the concrete placing surface 13A of the girder material 13. Then, the pavement layer 27 is formed on the sidewalk plate 19 to complete the construction. In this case, since the girder width G of the girder member 13 is formed to be relatively large and the adjustment interval g is provided between the longitudinal end faces 22, 22, the adjustment interval g allows the length direction of the sidewalk plate 19 to be adjusted. It is possible to absorb dimensional errors and on-site installation errors of the girder material 13. Also, by arranging the end faces 22, 22 on the girder material 13 in a substantially C-shape, the longitudinal It is also possible to make the sidewalk plates 19 adjacent to each other in an angle corresponding to the curve of the road A.

Further, FIG. 5 is a plan view of a case where the sidewalk slab 19 of the present invention is constructed on a curved road A and a sidewalk with a variable width is constructed by the sidewalk slab 19, and three sidewalks on the right side of the figure are shown. The slab 19 has an overlap margin e of 200 mm, that is, a joint space of 0 mm, and the sidewalk width H1 is 1700 mm. The three sidewalk slabs 19 on the left side of the figure have an overlap margin of 200 mm on the right side of the figure and the left side of the figure. The overlapping margin e of is 50 mm, and the left sidewalk width H2 of the left sidewalk plate 19 is 2000 mm. Although not shown in FIG. 5, a joint material 23 is filled between the basic concrete 11 and the lower part 21, and the joint 23 of the left sidewalk slab 19 is also filled. A joint material 24 may be filled between the end faces 22 and 22 arranged in a substantially inverted C-shape on the installation surface 13A and the concrete placing surface 13A to construct a sidewalk that fits the curve of the road and has a variable width. it can.

As described above, in the present embodiment, in the sidewalk plate in which a plurality of sidewalks are arranged in the width direction to form a sidewalk, the step portions 20 and 21 are provided at the end of the sidewalk plate 19 in the width direction. It is possible to easily construct sidewalks of width F, and since it is possible to form sidewalks of various widths F with one type of sidewalk plate 19, it is possible to reduce the manufacturing cost of the sidewalk plate 19. . Further, by changing the overlap margin e on both ends in the longitudinal direction as shown in FIG. 5, the width F can be freely changed on the same sidewalk, and the construction on a curved road becomes easy. Furthermore, since the lower part of the joint of the sidewalk slabs 19 adjacent to each other is closed by the lower step portion 21, a formwork provided at the lower part of the joint is not required for the filling work of the joint material 23, which facilitates the construction.

Further, as an effect of the embodiment, since the girder width G of the girder material 13 is formed to be relatively large, the construction is performed such that the adjustment interval g is provided between the longitudinal end faces 22, 22 of the walking slab 19. Therefore, it is possible to absorb the dimensional error in the lengthwise direction of the sidewalk plate 19, the on-site mounting error of the girder material 13, and the like. Further, since the upper surface of the girder material 13 is the concrete placing surface 13A, it is possible to easily fill the joint material 24 on site at the recess surrounded by the concrete placing surface 13A and the end faces 22, 22. it can. Furthermore, by arranging the end faces 22, 22 of the sidewalk slab 19 on the relatively large concrete placing surface 13A in a substantially inverted C shape as shown in FIG. Can be given an angle corresponding to the curve of the road A, and the construction of the curved road becomes possible.

FIG. 6 shows a second embodiment of the present invention, in which the same parts as those in the first embodiment are designated by the same reference numerals, and detailed description thereof will be omitted. A precast concrete sidewalk slab 19A with a flat left end and an upper tier 20 on the left end, a sidewalk slab 19B with lower tiers 20 and 20 on both ends, and upper tiers 21 and 21 on both sides. An example of constructing a sidewalk by arranging a sidewalk plate 19C and a lower step portion 21 at the right end and arranging a sidewalk plate 19B having a flat right end portion is shown. In this example as well, the overlapping margin e is adjusted to obtain various widths F. The walkway can be constructed, and the same action and effect as those of the first embodiment can be obtained.

The present invention is not limited to the above embodiment, and various modifications can be made within the scope of the present invention. For example, the size, shape, and dimensions of the sidewalk slab and the dimensions of the upper and lower steps can be selected as appropriate. The sidewalk slab is not limited to concrete, and can be made of metal, wood, synthetic resin, or a composite of these.

[0014]

[Effect of device]

 The present invention provides a sidewalk slab capable of forming sidewalks of various widths, since the sidewalk slab is formed by arranging a plurality of sidewalks in the width direction, and the stepped portion is provided at the end of the sidewalk in the width direction. can do.

[Brief description of drawings]

FIG. 1 is a longitudinal sectional view showing a first embodiment of the present invention.

FIG. 2 is a perspective view of an essential part showing a first embodiment of the present invention.

FIG. 3 is a front view showing a first embodiment of the present invention.

FIG. 4 is a plan view showing a first embodiment of the present invention.

FIG. 5 is a plan view in which a sidewalk plate is applied to a curved road according to the first embodiment of the present invention.

FIG. 6 is a sectional view showing a second embodiment of the present invention.

FIG. 7 is a cross-sectional view showing a conventional example.

[Explanation of symbols]

 A Road 19, 19A, 19B, 19C, 19D Sidewalk version 20 Upper part (overlapped part) 21 Lower part (overlapped part)

Claims (1)

[Scope of utility model registration request] 1. A sidewalk plate in which a plurality of sidewalks are arranged in the width direction to form a sidewalk, wherein a sidewalk plate is provided at an end of the sidewalk plate in the width direction so as to overlap.