JP4038803B2 - Overhang sidewalk structure - Google Patents

Description

  The present invention relates to a structure of an overhanging sidewalk for forming a sidewalk in a protruding shape on the side of a road.

  An overhanging sidewalk is known in which a sidewalk portion is provided in an overhanging shape on a side of a narrow road such as a mountainous area, an inland sea coast, or a lake edge (see, for example, Patent Document 1).

  This conventional overhanging footpath forms a base unit by installing a plurality of unit bases including a base main body supported on the ground side and an overhang base that is integrally connected to the base main body and protrudes in the lateral direction. In addition, one sidewalk board is placed and fixed on the upper surface side of each of the plurality of overhanging foundations, and a drainage gap is formed between adjacent unit foundations, and at least the overhanging foundations are vertically supported. The structure is provided with a part. The unit bases constituting the assembly base portion are linked to each other by connecting reinforcing bars, and the unit bases are fixed by filling concrete between the unit bases.

JP 2005-97999 A

  Since the above-described conventional overhanging sidewalk is configured such that one sidewalk board is supported by a plurality of base members, many base members must be installed on the ground with respect to one sidewalk board. In addition, the installation of each foundation member requires that the intervals and postures of each of them must be arranged with a certain degree of accuracy, which requires a great amount of man-hours due to the large weight of each. It was.

  In addition, the above-mentioned many base members must be connected with each other with reinforcing bars or the like and then filled with concrete or the like as a joint material between them, which requires a lot of work. In addition, there is also a problem that the construction period becomes longer due to the time required for curing the concrete and the like.

  The present invention has been made in view of the above, and in a structure of an overhanging sidewalk in which a base member and a sidewalk board are separated, one base member is used for one sidewalk board, and the base member It is an object of the present invention to provide a structure of an overhanging sidewalk that can be connected without using concrete or the like, so that the construction of an overhanging sidewalk can be performed with a small number of man-hours and in a short construction period.

In order to achieve the above object, a structure of an overhanging sidewalk according to the present invention includes a base member in which a floor slab receiving portion is integrally formed on a foundation portion that contacts the ground, and a floor slab support for the base member. is fixed to the section, the base member consists of a slab which is separately configured, the structure of the overhanging walkway so as to connect the base portion together and adjacent ground state ground at the coupling device, the base member Columnar protrusions are provided vertically on both sides in the width direction of the base of the floor slab receiving portion, and both the width direction both sides of the foundation member and the floor slab receiving portion of the base member are respectively provided from the portions where the columnar protrusions are provided. It forms in the taper shape which becomes narrow toward the side, and also has the structure which made variable the connection length of the said connection apparatus .

  In such a configuration, the fixing position of the floor slab with respect to the floor slab receiving portion is made variable along the upper surface of the floor slab receiving portion, and the floor slab receiving portion is made into a fork shape.

  According to the present invention, one base member is used for one floor slab, and each base member installed side by side on the ground can be connected by a connecting device without using concrete or the like. Construction of an overhanging sidewalk can be done with a small number of man-hours and in a short construction period.

  According to the present invention, since the fixing position of the floor slab with respect to the floor slab receiving portion is made variable, subtle positioning of the floor slab portion of each structure is small in the installation of the structure of the overhanging sidewalk. This can be done by aligning the floor slab, and the construction of the overhanging sidewalk becomes easier as compared to a conventional heavy structure in which the foundation and the floor slab are integrated.

  Moreover, the weight of the whole structure can be reduced by making the floor slab receiving part, which is a part to which the floor slab is fixed, into a fork shape.

  The structure of the overhanging sidewalk according to the present invention includes a base member 1 made of concrete, a floor slab 2 for a sidewalk separately from this, and a connecting device 3 that connects the adjacent base members 1 to each other. It is made up of.

  FIG. 1 to FIG. 4 show a base member 1, which includes a base part 4, and a floor slab receiving part 5 provided integrally and projecting on one side in the length direction of the base part 4. The upper surface of the floor slab receiving portion 5 is stepped with respect to the upper surface of the base portion 4, and the tip side thereof is in the form of a fork. A nut member 6 for attaching the floor slab 2 is inserted into a plurality of positions on the upper surface of the floor slab receiving portion 5.

  At the center in the width direction of the base portion 4, a reinforcing rib 7 having one end abutting the stepped portion of the floor slab receiving portion 5 is provided in the longitudinal direction. In addition, a plurality of notch recesses 8 in which the coupling device 3 is provided are provided on both sides of the base portion 4 in the width direction, and a nut member 9 is inserted into each of them.

Columnar protrusions 10 are provided in the vertical direction on both sides in the width direction of the base of the floor slab receiving portion 5 of the base member 1. Then, as shown in FIG. 2, both surfaces of the base portion 4 and the floor slab receiving portion 5 of the base member 1 are inclined in a taper shape so that the width becomes narrower from the portion having the columnar protrusions 10 toward the respective distal ends. In terms of image, it has a fan-like shape with each tip side narrowed. The lower surface of the base portion 4 is planar over the lower surface of the base portion of the floor slab receiving portion. The bottom surface side base portion of the floor slab receiving portion 5 is punched in the direction in which the wall thickness of the rising portion is reduced, and the reinforcing ribs 11 are provided in this portion in the vertical direction.

  FIG. 5 shows the floor slab 2. The floor slab 2 has substantially the same width as the width of the floor slab receiving portion 5 of the base member 1, and the planar shape rides on the upper surface of the floor slab receiving portion 5. It is like a rectangle. And the lower surface of this is flat, and the upper surface is also flat, but the curb 12 protrudes in the width direction of the tip, and the pole that stands the fence pole in this part A service hole 13 is provided. Further, a concave portion 14 is provided at a position corresponding to the nut member 6 of the floor slab receiving portion 5 of the base member 1 on the flat surface portion of the base member 1, and the floor as shown in FIG. A bolt hole 16 through which a bolt 15 screwed into the nut member 6 of the plate receiving portion 5 passes is provided. The bolt hole 16 is sufficiently larger than the bolt diameter, and a washer 15 a is interposed on the seating surface of the bolt hole 16.

  A notch 17 having a notch on the lower surface side is provided on one of both sides in the width direction of the floor slab 2, and a convex portion 18 shaped to engage with the notch 17 is provided over the entire length on the other side. In addition, on the upper surface of both sides in the width direction of the floor slab 2, a plurality of, for example, two seats 19 that are open to the side are provided apart from each other in the longitudinal direction.

  FIGS. 7 to 9 show the structure of a connecting device 3 for connecting adjacent base members 1, 1, and this connecting device 3 is a nut member 9 inserted in a recess 8 provided in a base portion 4 of the base member 1. The bolt 20 is fastened to the connector 20, the connector 21 having a long hole-like space through which the bolt 20 passes, and the washer members 22, 23 interposed on the upper and lower sides of the connector 21.

  As shown in the figure, the connector 21 may be a member obtained by punching a rectangular plate material into a long hole shape in addition to a rod member connected in a ring shape.

  The construction procedure of the overhanging sidewalk having the above configuration will be described below with reference to FIG.

  First, a large number of base members 1 are installed along the shoulder portions 24 where the road is leveled, with the base portions 4 thereof being placed. At this time, if the road is linear, the columnar protrusions 10 projecting from both sides of the road are brought into contact with each other and arranged in parallel.

Next, although not shown in FIG. 10, the base portions 4 of the adjacent base members 1 are connected to each other by the connecting device 3 as shown in FIGS. At this time, the connecting device 3 includes bolts 20 that are screwed into the nut members 9 inserted into the notch recesses 8 of the respective base portions 4, with washer members 22, 23 interposed above and below the connector 21, and the length of the bolts 20. It is attached by being inserted into each end of the hole-shaped space and pressing this part via the washer members 22 and 23. At this time, by making the length of the long hole portion of the connector 21 longer according to the interval between the bolts 20, it is possible to cope with the change in the installation interval of the base portion 4. In addition, several types of connectors 21 having different lengths may be prepared.

  Next, as shown in FIG. 10, the floor slab 2 is placed on the floor slab receiving portion 5 of each base member 1 installed on the road shoulder 24, and a washer 15 a is attached to the bolt hole 16 of the concave portion 14 provided in the floor slab receiving portion 5. The bolt 15 is inserted through and screwed into the nut member 6 provided on the floor slab receiving portion 5 to fix the floor slab 2 to the floor slab receiving portion 5.

  At this time, since the bolt hole 16 provided in the floor slab 2 is sufficiently larger than the diameter of the bolt 15 penetrating therethrough, the fixing position of the floor slab 2 with respect to the floor slab receiving portion 5 is free by that margin. The position is movable in the horizontal direction.

  At this time, the mutually opposing sides of the adjacent floor slabs 2 are engaged by the notch 17 and the convex portion 18.

  Thereafter, the mortar is filled into the concave portions 14 of the connecting device 3 that connects the base portions 4 of the base members 1 and the bolts 15 that fix the floor slab 2. In addition, when the notches 17 and the protrusions 18 are engaged with each other between the floor slabs 2 and the end surfaces of the floor slabs 2 do not come into close contact with each other, Fill the gap with mortar. At this time, since the notch 17 and the convex portion 18 are engaged with each other at the lower portion of this portion, the mortar does not fall downward.

  Although the construction described above is a case of a straight road, the planar shape of the foundation portion 4 of the base member 1 is a fan-like shape on the tip side, so that the foundation portions 4 are brought closer to each other as shown in FIG. It can be constructed in a curved shape with a convex outer side. In addition, in FIG. 11 which shows this implementation state, and FIG. 13 which shows the curvilinear state where an outer side is concave, illustration of the connection apparatus 3 which connects the base part 4 of each base member 1 was abbreviate | omitted.

  At this time, a rust-like gap is generated between the floor slabs 2 fixed to the floor slab receiving portions 5 of the base members 1 as shown in FIG. For this reason, the mortar filled in the gap between the floor slabs 2 falls out downward. In order to prevent this, as shown in FIGS. 11 and 12, the lower support plate 25 is placed along the lower side of the gap between the floor slabs 2 and fixed by the fixing means 26. Fill with mortar.

  The fixing means 26 for fixing the lower support plate 25 has both ends placed on the seat portions 19 and 19 of the adjacent floor slabs 2 and 2, passes the support member 27 between the seat portions, and the bolts 28 penetrating through the support member 27. The lower support plate 25 is supported at the tip, and the lower support plate 25 is suspended and supported by a support member 27 and a bolt 28. As the support member 27, a member having a different length depending on the distance between adjacent floor slabs 2 is used.

  FIG. 13 shows a case where the outer side is formed in a curved shape. In this case, the base portion 4 of the base member 1 is separated in a fan shape, and the gap between the floor slabs 2 is a curved shape in which the outer side is convex. Has a wedge-shaped gap in the opposite direction. In this case as well, the lower support plate 25 is fixed by the fixing means 26 below the gap, as in the above case.

  In this case, since the interval between the base portions 4 of the base member 1 is wide as described above, a long connecting tool 21 of the connecting device 3 for connecting the base members 1 is used.

  After the base member 1 in a state where the floor slab 2 is fixed to the floor slab receiving portion 5 as described above is installed on the shoulder portion 24 of the road, crushed stone and earth and sand are placed on the upper surface of the foundation portion 4 and spread. The weight of this part corresponds to the sidewalk load acting on the floor slab 2.

It is a perspective view which shows a base member. It is a top view which shows a base member. It is a side view which shows a base member. It is a rear view which shows a base member. It is a perspective view which shows a floor slab. It is sectional drawing which shows the attachment structure of a floor slab. It is a disassembled perspective view which shows a connection apparatus. It is a top view which shows a connection apparatus. It is AA sectional drawing of FIG. It is a disassembled perspective view which shows the construction state of the structure of an overhanging sidewalk. It is a top view which shows the case where it constructs in the curve shape from which an outer side becomes convex. It is BB expanded sectional drawing of FIG. It is a top view which shows the case where it constructs in the curve shape from which an outer side becomes concave.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Base member, 2 ... Floor slab, 3 ... Connecting device, 4 ... Base part, 5 ... Floor slab receiving part, 6, 9 ... Nut member, 7, 11 ... Reinforcement rib, 8 ... Notch recessed part, 10 ... Column shape Projection, 12 ... Curbstone, 13 ... Pole hole, 14 ... Recess, 15, 20, 28 ... Bolt, 15a ... Washer, 16 ... Bolt hole, 17 ... Notch, 18 ... Projection, 19 ... Seat, 21 ... Connector, 22, 23 ... Washing member, 24 ... Road shoulder, 25 ... Lower support plate, 26 ... Fixing means, 27 ... Support member.

Claims (3)

It consists of a base member in which the floor slab receiving part is integrally formed on the foundation that contacts the ground, and a floor slab that is fixed to the floor slab receiving part of this base member and is configured separately from the base member. In the structure of the overhanging sidewalk that connects the foundations adjacent to each other in the grounded state with a connecting device ,
Columnar protrusions are provided in the vertical direction on both sides in the width direction at the base of the floor slab receiving portion of the base member, and both the widthwise both sides of the foundation member and the floor slab receiving portion of the base member are provided from the portion provided with the columnar protrusions. A structure of an overhanging sidewalk, characterized in that it is formed in a taper shape with a width narrowing toward each tip side, and further, the connecting length of the connecting device is variable .   2. The overhanging sidewalk structure according to claim 1, wherein the fixing position of the floor slab with respect to the floor slab receiving portion is variable along the upper surface of the floor slab receiving portion.   3. The overhanging sidewalk structure according to claim 1 or 2, wherein the floor slab receiving portion has a fork shape.

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