JP4472894B2 - Outdoor playground - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an outdoor playground that is formed in a concave shape that is curved in a substantially horizontal or substantially concave surface, for playing with water by skateboarding or by pooling water.
[0002]
[Prior art]
In recent years, competitions have been popular among young people and young people to play by using skateboards and roller skates. These slide-playing competitions are carried out using hard floors such as roads and park squares, and placing color cones, balances, and pedestals with curved or inclined surfaces. In this place, there were cases in which traffic obstruction, noise pollution to nearby residents, scattering of garbage and damage to equipment occurred.
In this way, young people and young people can play with skateboards, etc., and infants and young people can play in the hot summer season by sliding on curved surfaces and playing with water. There were few, and leisure and safety were not taken into consideration and it was not possible to play with peace of mind.
Therefore, there is a need for facilities that can be used safely and healthy for sliding and playing in the water without being an obstacle to traffic and annoying by noise, etc., and can be constructed outdoors with good workability and durability. There is a need for a facility that has the ability to improve the skill of variability, playability, and exercise.
[0003]
In addition, a precast concrete half-pipe artificial runway unit is considered for use in skateboarding practice and competition, and it is also used for snowboarding slope construction, and in summer, it is also used for skateboarding. A half-pipe slope construction unit that can be built is also considered, but problems such as transportation to the site become difficult, construction of foundations outdoors becomes large, construction of foundations and base plates becomes complicated In other words, it was difficult to easily and easily construct a large outdoor place with good workability.
[0004]
[Problems to be solved by the invention]
In the case of an outdoor playground constructed outdoors, when the bottom is substantially flat and has a large area, it is difficult to construct the bottom economically with good workability while supporting the bottom on the foundation of the ground on average.
When the earth pressure is applied to the ground or when the groundwater rises, there is a possibility that a force to push up is applied to cause a crack at the bottom. Further, when the groundwater increases and rises, there is a concern that the groundwater may permeate into the upper part of the bottom, and there is a risk of causing problems such as flooding when playing without using water.
In addition, when raining, rainwater permeates from the bottom to the basement and the foundation becomes soft, which may reduce the strength of the foundation. Furthermore, it was difficult to prevent permeation from the bottom, collect rainwater, and efficiently discharge it outside the playground.
In addition, when using a slope where the side portion of the playground is piled up or dug down, the side portion may be cracked or damaged by earth pressure from the surroundings. There is also a concern that a deformation load is repeatedly applied to the curved surface of the side portion provided on the slope, and the surface is cracked or peeled off.
In addition, at the connection between the bottom and the side, tensile load and bending load are concentrated on the periphery of the bottom, and compression load and bending load are repeatedly applied to the edge of the side, so that the vicinity of the connection is damaged. There was a fear.
When playing with water, it is desirable to prevent water from penetrating into the foundation and to make the structure resistant to deformation loads without causing surface cracks or cracks in the concrete mortar layer and other components. In addition, it is important to make the floor surface a safe surface so that the floor surface does not slip and become dangerous when playing with water.
[0005]
The object of the present invention was made in view of the problems of the prior art as described above, is excellent in outdoor workability, excellent in durability during use, used for skateboard play, water play, etc. Provide an outdoor playground where you can play safely and with peace of mind.
[0006]
[Means for Solving the Problems]
An outdoor playground according to the present invention is a hollow outdoor playground having a substantially horizontal bottom portion and a side portion that curves and rises outside the bottom portion, and the bottom portion is disposed substantially horizontally on a support layer. It is formed with a concrete mortar layer placed on the bottom plate of the water-impervious structure, and the side part is formed with a concrete mortar layer placed on a corrugated steel sheet stretched on a support frame provided on the footing. The bottom plate peripheral portion is formed on a peripheral bottom plate provided with a vertical water stop edge, and the peripheral bottom plate is fixed on the side footing.
[0007]
Moreover, while providing the water supply equipment which supplies water in the said outdoor playground, the overflow equipment which maintains a water level below the upper end edge of the said water stop edge is provided.
[0008]
In addition, the concrete mortar layer of the outdoor playground is provided with a joint member that vertically partitions the longitudinal section and a joint material that fills the upper part of the joint member, and the upper surface is formed with a rough finish surface such as a wooden finish. It is.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
An embodiment of an outdoor playground 1 according to the present invention will be described with reference to FIGS.
FIG. 1 shows a longitudinal section of a part of an outdoor playground 1 consisting of a bottom 2 having a substantially flat surface in a horizontal or concave shape and a side 3 curved to a concave steeply inclined surface. 2 shows a part thereof enlarged and shown in more detail, and FIG. 3 shows a state in which water 16 is stretched on the bottom 2.
[0010]
As shown in FIG. 1, the substantially flat bottom portion 2 includes a support layer 5 provided on the ground foundation 4, a bottom plate 6 disposed on the support layer 5, and a substantially horizontal surface placed on the bottom plate 6. And a concrete mortar layer 7 having a curved surface. In addition, the bottom footing 8 having a rigid structure is provided at an important point such as the central lower portion of the bottom 2 so that the vertical load applied to the vicinity of the inner end 9 of the bottom plate 6 can be firmly supported.
[0011]
The ground foundation 4 is formed, for example, by digging the ground into a wide, substantially flat surface, laying quarry stones on it, laying and solidifying rough gravel on the ground, and placing abandoned concrete thereon, It is formed in a substantially horizontal plate shape of about 100 to 300 millimeters.
The support layer 5 to be constructed on the ground foundation 4 is a uniform layer having a thickness of about 100 to 200 mm, for example, by rolling a member having elasticity such as crushed stone and sand, which will be described later, and is applied to the bottom plate 6. It is formed to support the vertical load to the average.
[0012]
Further, as shown in FIG. 1, the side portion 3 that curves steeply includes a frame 11 assembled on a rigid structure footing 10, a support frame 12 fixed on the frame 11, and the support frame 12. The corrugated steel sheet 13 stretched on the corrugated steel sheet 13 and the curved concrete mortar layer 7 placed on the corrugated steel sheet 13 are formed.
[0013]
The footing 10 is formed, for example, by digging or embedding the ground to provide a retaining wall 14, piled on the inner lower portion thereof, provided a reinforced concrete pile foundation 15 thereon, and placed on the pile foundation 15. .
A frame 11 is constructed on the footing 10 by combining a vertical material and a horizontal material using a shape steel material such as an angle material or a channel material, and a support frame 12 formed on the upper portion of the frame 11 according to a curved surface. Are arranged at intervals of about 500 to 1800 millimeters, for example. A corrugated steel plate 13 is stretched between the support frames 12 and 12 so as to be along the curved surface, and a concrete mortar layer 7 having a thickness of, for example, about 50 to 400 mm is placed on the corrugated steel plate 13 to bend. Form in a planar shape.
[0014]
As illustrated in detail in FIG. 2, the bottom plate 6 disposed on the support layer 5 is formed of a member such as a steel plate having water shielding properties, and the peripheral portion thereof is formed on the peripheral bottom plate 17 having an increased thickness. In the vicinity of the end of the peripheral bottom plate 17, a water-stopping edge 18 raised vertically is provided. The water stop edge 18 has a height of about 50 to 300 millimeters, for example, and as will be described in detail later with reference to FIG. So as to block it.
By disposing the bottom plate 6 having water shielding properties as described above, the groundwater does not rise and penetrate into the bottom 2, and rainwater and water 16 do not penetrate into the basement. Since the deterioration is prevented, the durability of the bottom 2 is improved.
[0015]
The bottom plate 6 having the water-blocking property is integrally joined by welding or welding using a thin flat plate made of a metal material such as iron, aluminum, stainless steel, or a synthetic resin material such as fiber-reinforced plastics. To form a liquid-tight structure. As an example of the bottom plate 6, for example, when a steel plate having a thickness of about 6 mm is used, the bottom plate 6 is joined by overlap fillet welding, butt full penetration welding, or the like. Are joined by lap fillet welding or butt full penetration welding, and the water stop edge 18 is formed by using a bending molded material or welding the same type of steel plate.
[0016]
The vicinity of the joint between the bottom 2 and the side 3 will be described in more detail with reference to FIG. A rib plate 19 having a triangular side surface is welded and reinforced at a corner formed by the peripheral bottom plate 17 connected to the bottom plate 6 and the water stop edge 18 rising at a right angle. And the peripheral bottom board 17 adheres to the footing 10 of the side part 3 with an anchor bolt (not shown). Further, an attachment member 21 is provided at the lower end portion of the support frame 12 to which the corrugated steel plate 13 is fixed, and this attachment member 21 is fixed to the footing 10 of the side portion 3 by an anchor bolt 22.
Since the peripheral bottom plate 17 of the bottom plate 6 is firmly fixed on the footing 10 of the side portion 3 in this way, even if a tensile load and a bending load are transmitted, it does not move or deform, and the water stop edge 18 Since the strength is increased by the rib plate 19 and is further reinforced by the rib plate 19, there is no risk of damage and the strength is high and the durability is excellent. Moreover, since the support frame 12 and the corrugated steel plate 13 of the side part 3 are also firmly fixed on the footing 10, they are excellent in durability even when subjected to bending load or repeated deformation load.
[0017]
In addition, between the corrugated steel sheet 13 fixed to the footing 10 and the water stop edge 18, when placing the concrete mortar, the corrugated steel sheet 13 and the water stop edge are prevented so that the concrete mortar does not flow down from this gap. For example, a connecting plate 23 formed of a thin steel plate is provided so as to be filled with the space 18. As shown in FIG. 2, by connecting the connecting plate 23, even if rain that falls to the periphery permeates into the concrete mortar layer 7 and the permeated water descends along the corrugated steel plate 13, the bottom plate has a water shielding property. Since it can be stored in the bottom part 2 above 13, it becomes possible to discharge | emit efficiently outside from a drain outlet (not shown).
[0018]
FIG. 3 shows a state where water is accumulated in the bottom 2. The water stop edge 18 provided on the peripheral bottom plate 17 is formed to rise higher than the water level of the water 16. The overflow facility 24 for maintaining the water level of the water 16 is formed from an overflow outlet 25 opened near the upper edge of the water stop edge 18 and an overflow drain pipe 26 for discharging water from the overflow outlet 25 to the outside. To do.
By providing the overflow facility 24 in this way, the water 16 stretched on the concrete mortar layer 7 does not penetrate into the lower portions of the bottom plates 6 and 17 having water shielding properties, and the peripheral edge is raised at a right angle. Since the predetermined water depth is maintained without being blocked by the water edge 18 and leaking to the surroundings, the water 16 can be used for water play in summer.
[0019]
An example of the support layer 5 that supports the bottom plate 6 on average will be described in more detail. The support layer 5 is, for example, a basic sand such as mountain sand or river sand that is generally inexpensive and easily available, or a single particle size crushed stone defined in JIS A5001 “Road crushed stone”. Single-grade crushed stone with a nominal name of S-5 (No. 7), that is, commonly known as No. 7 crushed stone, or crushed sand specified in JIS A5005 “Crushed stone for concrete and crushed sand”, that is, crushed sand having a particle size of 5 mm or less, etc. Used is hard and durable and does not contain impurities such as dust, mud and organic matter, and has many voids between particles and elasticity. Alternatively, when a support material formed by foaming a synthetic resin, for example, a support material such as a polystyrene foam board material, is used as the support layer 5, it is lightweight, durable, homogenized and has a high porosity. , Improve elasticity, reduce the weight of the foundation.
[0020]
An example of the corrugated steel sheet 13 will be described in more detail. The corrugated steel sheet 13 is, for example, a rolled steel material defined in JIS G3352 “deck plate”, a galvanized steel sheet having a mountain-valley cross-sectional shape, or the like, and is fixed to the upper surface of the support frame 12 by welding, bolts, nuts, or the like. Thus, by using the corrugated steel sheet 13, it becomes easy to cut along a curved surface shape that is curved in three dimensions, and to be bent and arranged, and against deformation and deflection in a direction orthogonal to the corrugation. And strong rigid structure. Further, when the concrete mortar layer 7 is placed on the upper surface, the concrete mortar can be prevented from sagging as a mold, and the curved surface shape can be easily finished.
[0021]
The bottom 2 formed as described above absorbs deformation of the bottom plate 6 due to fluctuations in the load due to the player entering and leaving due to the elastic performance of the support layer 5, etc., so that the durability is maintained. It is supported by the support frame 12 and the corrugated steel plate 13 to absorb the load, and maintains durability against bending of the curved surface in the outward direction and repeated variations due to the player's load variation.
[0022]
Based on FIG. 4, the concrete mortar layer 7 is demonstrated in detail. This concrete mortar layer 7 is placed continuously and continuously from the bottom plate 6 to the corrugated steel sheet 13. First, before placing the concrete mortar layer 7, the top surface of the bottom plate 6 and the corrugated steel sheet 13 is made of metal or A spacer 27 made of a plastic member and maintaining a gap is disposed, and a reinforcing member 28 such as a welded wire mesh, a reinforcing bar, or a wire lath is disposed thereon. Further, for example, a strip-like partition plate piece 29 made of an expansion joint material such as a rubber-based material is placed in a state in which the lower end portion is in contact with and supported without bonding, welding, or fixing so as to partition a predetermined range. Set up. Next, the concrete mortar layer 7 is placed in a range surrounded by the partition plate pieces 29. And the joint material 30 which has elasticity, such as a silicone rubber and a synthetic resin material, is filled into the upper part of the partition plate piece 29, for example. The joint material 30 fills the gap between the concrete mortar layers 7 and 7 so as to shield the water, and smoothly forms the sliding surface 31 on the top surface of the concrete mortar layer 7 and the joint material 30.
In addition, the sliding surface 31 on the top surface of the concrete mortar layer 7 may be roughened by, for example, slightly roughing the surface of the bottom 2 using a wooden trowel, for example, so that it does not become dangerous when sliding in the water. Form. In addition, the surface of the side part 3 may be surface-finished so that a surface may become smoother with a gold trowel etc., and a sliding state may be improved further.
[0023]
As described above, since the partition plate piece 29 having elasticity is provided so as to partition the concrete mortar layer 7, even if the concrete mortar layer 7 contracts or expands, the partition plate piece 29 having elasticity is displaced. Therefore, the concrete mortar layer 7 is not cracked. Further, the sliding surface 31 in which the joint material 30 is filled in the upper part of the partition plate piece 29 does not become an obstacle to the player to slide and play and does not cause a sense of incongruity.
In addition, as described above, since the sliding surface 31 on the top surface of the concrete mortar layer 7 is formed with a rough finish surface using a wooden trowel or the like, the top surface of the bottom portion 2 is difficult to slip, so that a player can barefoot in the summer. When playing in the water, you can play safely without slipping and falling. Also, when playing skateboarding, even if it is a rough surface with a wooden finish, you can run smoothly and run smoothly without any obstacles. Since surface finishing is performed with a wooden trowel in this manner, surface cracks are unlikely to occur, and the water barrier property when water 16 is accumulated in the bottom 2 is further improved, so that the playground is more suitable for playing with water. In addition, when the sliding surface 31 of the curved surface of the side wall 3 is formed with a gold trowel so as to be more slippery, the speed increases during skateboarding and the like, and the sliding state also improves during watering. It will be an outdoor playground with improved leisure.
[0024]
In addition, although the said embodiment explained in full detail about the case where the sliding surface 31 of the outdoor playground 1 was formed with the concrete mortar layer 7, durability was provided in the continuous surface using a synthetic resin material layer or a steel plate. You may form the sliding surface 31 which has. In this case, it is suitable for forming a playground having a small and relatively simple sliding surface 31, and can be easily assembled and constructed.
[0025]
FIG. 5 shows an overall plan view of an example of the outdoor playground 1. The outdoor playground 1 is formed in a concave shape having a substantially flat surface and a curved surface by raising the periphery or dug down the inside. The outdoor playground 1 shown in FIG. 5 has an overall shape formed on a sliding surface 31 of a depression shape with a change by combining a shape of a plane circle, a plane ellipse, and a plane oval. The outdoor playground 1 enters and exits from the surroundings such as the entrances 32 and 32. The floor surface of the entrance / exit 32 is formed on a gentle slope 33 having a gentle slope to facilitate entry / exit. Further, a handrail 34 for safety is provided at the entrance / exit 32, and a rail-like handrail 35 having a low height for use in play is provided on the sliding surface 31.
The range indicated by the broken line in FIG. 5 is the bottom 2 having a substantially horizontal or gentle slope or curved sliding surface 31, and the range outside the bottom 2, the band-shaped range surrounded by the broken line and the solid line is curved. Then, it is formed on the side portion 3 having the sliding surface 31 that rises.
[0026]
Moreover, as shown in FIG. 5, the drainage equipment 36 is provided in the lowest part of the bottom part 2 of the outdoor playground 1, and it forms so that rain water and the accumulated water may be discharged | emitted outside.
37 is a water supply facility such as a water tap or fountain for supplying water to the outdoor playground 1, and 24 is an overflow facility described in detail in FIG. 3, which is provided so as to accumulate water at the bottom 2 and maintain a predetermined water depth. Water is supplied into the outdoor playground 1 from the water supply facility 37, and water of a predetermined water level is accumulated in the bottom portion 2 using the overflow facility 24, and is used for water play etc. in the hot summer season.
A shoulder 38 formed in a substantially horizontal plane is provided on the outside of the side portion 3 of the outdoor playground 1, and a safety fence 39 for preventing jumping is provided on the outside thereof. In addition, by providing a passage 40, a plaza, planting, and the like outside the safety fence 39, the outdoor playground 1 that takes into consideration the surrounding environment such as noise countermeasures and beauty is provided.
[0027]
The outdoor playground 1 rich in variability formed as described above is suitable for a play that uses the side 3 such as a skateboard or a roller skate, and a water play that accumulates water on the bottom 2 in the summer. The leisure play and the skill of athletics are improved, and the outdoor playground 1 is a safe and healthy place to play with peace of mind.
[0028]
【The invention's effect】
As apparent from the above description, the outdoor playground according to the present invention is a hollow outdoor playground having a substantially horizontal bottom portion and a side portion that curves and rises outside the bottom portion, and the bottom portion is a support layer. It is formed with a concrete mortar layer placed on the bottom plate of a water-impervious structure placed almost horizontally on the top, and the side surface is placed on a corrugated steel sheet stretched on a support frame provided on a footing The bottom plate peripheral portion is formed on a peripheral bottom plate provided with a vertical water-stopping edge, and the peripheral bottom plate is fixed on the footing, so that the bottom portion has a wide area bottom portion. This vertical load can be supported on average, the concrete mortar layer is supported by the bottom plate and can be placed uniformly, and it prevents the groundwater from rising and penetrating to the bottom surface. Also penetrated underground It is possible to store water efficiently and drain it out of the playground, and there is no risk of damage even if a tensile load and bending load are transmitted to the periphery of the bottom, and it has high strength and excellent durability. It becomes the bottom, there is no risk of damage even if the curved surface of the side is subjected to bending load and repeated deformation load, it is excellent in workability of the concrete mortar layer, it is easy to construct and the construction period is shortened, so it is also economical It is excellent and can provide an outdoor playground that is more suitable for sliding with a skateboard.
[0029]
In addition, in an outdoor playground provided with a water supply facility for supplying water into the outdoor playground and having an overflow facility for maintaining the water level below the upper edge of the waterstop edge, the supplied water Since it is blocked by the edge and the specified water depth is maintained in the overflow facility, it can be used for playing with water by pooling the bottom in the summer, so it is suitable for playing with water as well as skateboarding. As a result, leisure will be improved, and it will be an outdoor playground where you can play safely and healthily with peace of mind.
[0030]
Moreover, the concrete mortar layer of the outdoor playground is provided with a joint member that vertically partitions the longitudinal section and a joint material that fills the upper part of the joint member, and the upper surface is formed in a rough finish surface such as a wooden trowel finish. Since the load is relaxed by the elasticity, expansion and contraction of the joint material in response to repeated sliding loads and deformation loads, and changes in temperature, humidity, and outside air, the concrete mortar layer is cracked. Durability is improved without cracks and surface cracks, and the top surface of the concrete mortar layer on which the joint material is exposed is a smooth surface, so there is no obstacle to sliding. The bottom of the layer can be played safely without slipping during water play.
[Brief description of the drawings]
BRIEF DESCRIPTION OF DRAWINGS FIG. 1 is a longitudinal cross-sectional explanatory view showing a portion from a bottom part to a side part in an embodiment of an outdoor playground according to the present invention.
FIG. 2 is an explanatory diagram showing a part of FIG. 1 in an enlarged manner in detail.
FIG. 3 is an explanatory view showing a state in which water is accumulated.
FIG. 4 is an explanatory view showing a longitudinal section of a concrete mortar layer.
FIG. 5 is an explanatory diagram showing an overall plan view of an example of an outdoor playground.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Outdoor playground 2 Bottom part 3 Side part 4 Ground foundation 5 Support layer 6 Bottom plate 7 Concrete mortar layer 8 Bottom footing 9 Inner end 10 Footing 11 Construction 12 Support frame 13 Corrugated steel plate 14 Earth retaining wall 15 Pile foundation 16 Water 17 Peripheral bottom plate 18 Water stop edge 19 Rib plate 21 Mounting member 22 Anchor bolt 23 Connecting plate 24 Overflow facility 25 Overflow outlet 26 Overflow drain pipe 27 Space holding piece 28 Reinforcement material 29 Partition plate piece 30 Joint material 31 Sliding surface 32 Entrance / exit 33 Inclined portion 34 Hand Slide 35 Handrail 36 Drainage equipment 37 Water supply equipment 38 Shoulder 39 Safety fence 40 Passage

Claims (3)

A hollow outdoor playground having a substantially horizontal bottom portion and a side portion that curves and rises outside the bottom portion, and the bottom portion is placed on a bottom plate of a water shielding structure disposed substantially horizontally on a support layer. It is formed by a concrete mortar layer that has been cast, and the side part is formed by a concrete mortar layer that has been cast on a corrugated steel sheet that is stretched on a support frame provided on a footing. An outdoor playground characterized in that it is formed on a peripheral bottom plate provided with a water stop edge, and the peripheral bottom plate is fixed on the footing of the side portion. The outdoor playground according to claim 1, further comprising a water supply facility for supplying water into the outdoor playground, and an overflow facility for maintaining a water level below an upper end edge of the water stop edge. The concrete mortar layer of the outdoor playground is characterized in that a joint member that vertically partitions the longitudinal section and a joint material that fills the upper part of the joint member are provided, and the upper surface is formed into a rough finish surface such as a wooden finish. The outdoor playground according to claim 1 or 2.

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