JPH08109735A - Floor structure of gymnasium - Google Patents

Abstract

PURPOSE: To improve uniformity of elasticity of a floor surface by making a relationship between intervals between sleepers and intervals between support saddles arranged along a straight line in a direction parallel with the sleepers proper. CONSTITUTION: Support saddles 1 are arranged with proper intervals on a plural number of parallel straight lines, and a plural number of sleepers 4 are provided on upper ends of the support saddles in a direction in parallel with their straight lines. Thereafter, a floor of a gymnasium is constructed by placing and fixing damping curved steel sheets 5 as common joists on the sleepers 4 and installing surface plates on the damping curved steel sheets 5. At this time, an interval S in the straight line direction of the support saddles 1 arranged in a straight line along the straight line in parallel with the sleepers 4 is set in an optional interval within a range of 700-1000mm, and an interval P between the adjacent sleepers 4 is set in an optional interval within a range of 800-1300mm.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a floor structure of a gymnasium, and more particularly, to a more uniform elasticity over the entire floor.

[0002]

2. Description of the Related Art On the floor of a gymnasium,
To make the ball bounce, evenness of elasticity on the entire surface of the floor and a floor surface of appropriate hardness (not too hard or too soft) are required so as to suppress the occurrence of obstacles during movement. It For this reason, as the floor structure of a conventional gymnasium, a plurality of Daihiki are fixed in parallel on the supporting legs arranged at appropriate intervals, and a plurality of joists are placed on the Daihiki in a direction orthogonal to the Daihiki. An adhesive agent is applied to the joists to dispose of them and a surface plate made of a surface material is adhered and fixed. Further, in order to improve the homogeneity of elasticity and the sound insulation, etc., it is known to use a damping steel plate having a damping effect as a joist and a damping bending steel plate having a rectangular wave-shaped cross section. There is. This is done by fixing Daihiki steel to the upper ends of the support legs that are arranged at appropriate intervals on the foundation concrete surface, installing multiple Daihiki steels in parallel, and as joists in the direction orthogonal to it on the upper side of Daihiki steel. Place and fix the vibration-damping bent steel plate. On the upper side of the vibration-damping bent steel plate, a surface plate provided with a flooring on top of the waste is attached. The height of the supporting leg can be adjusted with an adjusting bolt, and a cushion rubber is provided at the upper end.

[0003]

In the above-mentioned conventional floor structure, a certain degree of uniformity of elasticity is obtained, but considering the elasticity of the rectangular portion surrounded by the four adjacent support legs on the floor surface, There is a difference in elasticity between the central part of the part, the supporting leg part or its vicinity, the midpoint on the joist, and the midpoint of Daihiki steel, and sufficient uniformity is achieved. I couldn't say that. In addition, the applicant of the present invention considers that "the relationship between the interval of the Daihiki and the position of the supporting leg may affect the elasticity of each position on the floor surface", and the interval between the Daihiki and the supporting leg is As a result of investigating the elasticity at each point of the finished floor surface by making various changes, when the distance between the Daihiki and the support legs is within a certain range, it is possible to obtain relatively uniform elasticity and to obtain an appropriate degree of elasticity. It was discovered that a floor with a sufficient hardness can be constructed. Therefore, in the floor structure of the gymnasium of the present invention, the relationship between the interval between the Daihiki and the interval between the supporting legs arranged along the straight line in the vertical direction with the Daihiki is made appropriate, and the elasticity of the floor surface is improved. It is an object to provide a floor structure with improved uniformity. Further, another object of the present invention is to provide a floor structure having a good feeling of use on the floor and a high level of safety by setting a buffer effect value, which is a measure of the elasticity of the floor, to an appropriate value.

[0004]

The floor structure of a gymnasium according to the present invention has solved the above-mentioned problems. Support legs are arranged in a plurality of parallel straight lines at appropriate intervals and are parallel to the straight lines. In the floor structure of the gymnasium that holds a plurality of Daihiki in the direction, a damping steel plate on the Daihiki, and a finishing plate on it
The distance between the large pulls is 800 to 1300 mm, and the distance between the linear support legs is 700 to 100 mm.
It is formed to 0 mm. When the distance between the large pull and the distance between the support legs are within the above range, the elasticity of the floor surface becomes relatively uniform. Further, in the floor structure having the above structure, the central portion of the rectangular portion surrounded by four adjacent support legs, the intersection of the support legs and Daihiki, the midpoint between the two support legs in the direction orthogonal to Daihiki, and the Daihiki By setting the cushioning effect value at each of the midpoints between the two support legs in the direction of to 20 to 30, the floor surface has elasticity suitable for use.

[0005]

With the above-mentioned means, the floor structure of the gymnasium of the present invention is such that a plurality of Daihiki are fixed by fixing the Daihiki to the upper ends of the supporting legs arranged in a plurality of parallel straight lines on the foundation concrete surface at appropriate intervals. Provide in parallel. Then, a vibration-damping bent steel plate is placed and fixed as a joist on the Daihiki, and a surface plate is attached on the vibration-damped bent steel plate to construct a floor of the gymnasium. At this time, a plurality of Daihiki provided on the support leg in a direction parallel to the straight line are arranged at arbitrary intervals within a range of 800 to 1300 mm, and the support arranged along a straight line parallel to the Daihiki. By providing the legs at an arbitrary interval within the range of 700 to 1000 mm, the elasticity of the floor surface can be made relatively uniform, and a floor surface of appropriate hardness is constructed in consideration of usability and safety. can do. In addition, by adjusting the interval between the Daihiki and the interval between the support legs within the above range, the central portion of the rectangular portion surrounded by four adjacent support legs, the support leg, and two supports in a direction orthogonal to the Daihiki The cushioning effect value at each of the midpoint between the legs and the midpoint between the two supporting legs in the direction of Daihiki is set to 20.
When it is set to -30, it is possible to construct a floor surface of a suitable hardness that is safe and has a good feeling of use.

[0006]

EXAMPLE An example of the floor structure of a gymnasium according to the present invention will be described with reference to FIGS. The floor structure of the gymnasium is such that the support legs 1 are arranged on the basic concrete W such as a floor slab in a plurality of parallel straight lines at appropriate intervals, and a plurality of large pulls are provided on the support legs in a direction parallel to the straight lines. 4 is held. The large pull 4 is horizontally held on the upper ends of the support legs 1 via the height adjusting member 2 and the cushion member 3. A damping bending steel plate 5 is attached as a joist on the large pull 4 by screws or the like, and the damping bending steel plate 5 is formed in a trapezoidal shape or a rectangular wave shape in cross section, and the protrusion 5 a is orthogonal to the large pull 4. Are arranged in the direction. The vibration-damping bent steel plate 5 has a viscoelastic resin sandwiched between thin iron plates so as to have a vibration-damping effect. Created to be what you want. The vibration-damping bent steel sheet according to the present embodiment has a rectangular corrugated cross section having a top width and a bottom width of about 30 to 160 cm and about 20, respectively.
It is formed to be ~ 100 cm. On the upper surface of the protruding portion 5a of the vibration-damping bent steel plate 5, a surface plate 6 made of plywood siding 6a and a flooring surface material 6b is bonded with an adhesive. In addition, the surface plate 6 can be applied in the same manner even if the surface plate 6 does not have a scrap.

As shown in FIG. 2, the spacing S in the linear direction of the support legs 1 linearly arranged along a straight line parallel to the large pull 4 is set to an arbitrary spacing within the range of 700 to 1000 mm. At the same time, the interval P between the adjacent large pulls 4 is set to an arbitrary interval within the range of 800 to 1300 mm. In order to know how the relationship between the distance S between the support legs 1 and the distance P between the large pulls 4 influences the elasticity of the floor surface, the distance S and the distance P are variously changed to change the distance to several points on the floor surface. The buffer effect value U defined in JIS A 6519 was measured at (4 points A to D described later), and the results are shown in Table 1. Note that it is _{U = U F -1.1D R × D} R · T R -1. Where U _F is the floor deformation energy (N · cm) until the floor deformation reaches its maximum, D _R is the maximum amplitude of floor vibration (cm), and T _R is the maximum amplitude of floor vibration. It is an apparent half cycle.

Further, as shown in FIG. 3, each measuring point is a rectangular portion surrounded by four adjacent supporting legs 1 and the central portion A of the rectangular portion and the vicinity B of the intersection of the supporting leg 1 and the haul 4 are shown.
And the midpoint C between the two support legs 1 in the direction orthogonal to Daihiki
And a midpoint D between the two support legs 1 in the direction of the Daihiki 4. Further, the distance S between the support legs 1 and the distance P between the large pulls are such that the distance S is in the range of 700 to 1000 mm,
Within the range of 1300 mm (No. 2, 4, 5,
6, 9, 10, 11, 13) and either the interval S or the interval P is out of the above range (No. 1, 1.
3, 7, 8, 12, 14).

[0009]

[Table 1]

As can be seen from Table 1, the cushioning effect value U is compared between the support leg distance S and the large pulling distance P within the above range, and the distance S or the distance P between which either one is outside the range. Then, it can be seen that when the distance S or the distance P is within the range, the difference between the measurement positions A to D is small and the elasticity is uniform. Further, when the interval S and the interval P are within the range of the present invention, the value of the buffer effect value U is 18 to 35, while the value of the buffer effect value U when outside the range is in the range of 14 to 42. Therefore, when the distance S and the distance P are within the range, there is little variation in elasticity at each point on the floor surface, and the feeling of use during exercise is good.

Further, the feeling of use during the exercise operation is the buffer effect value U.
A value of about 20 is said to be optimal, and if the value is lower than that, the floor becomes hard, or conversely, if the value becomes too large and the floor becomes too soft, the feeling of use will deteriorate. Regarding the safety during exercise, it is said that the buffer effect value U is about 30 when the obstacles occur the least, and like the feeling of use, the obstacles can occur when the floor is too hard or too soft. Will be more likely. Therefore, if the cushioning effect value U is in the range of 20 to 30, it can be said that the floor surface is optimum in consideration of both feeling of use and safety. From the above measurement results, it can be said that the floor surface in which the interval S and the interval P are set within the range is substantially within this value, and is a safe and comfortable floor surface.

[0012]

According to the floor structure of the gymnasium of the present invention, the spacing between the Daihiki is within the range of 800 to 1300 mm, and the spacing between the supporting legs arranged along a straight line parallel to the Daihiki is 700.
By setting the thickness within the range of up to 1000 mm, the resilience at each of the center of the rectangular portion surrounded by the four adjacent support legs on the floor surface, the peripheral central portion, and the corner becomes more uniform. In addition, by changing the distance between the haul and the distance between the haul and the support legs arranged in the vertical direction within the above range, it is possible to select the hardness of the floor surface in a comfortable and safe range. it can. In addition, if the distance between the haul and the support legs are adjusted within the above range so that the cushioning effect value is in the range of 20 to 30, a floor surface that considers both usability and safety is constructed. can do.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing an embodiment of a floor structure of a gymnasium according to the present invention.

FIG. 2 is an explanatory plan view when a vibration-damping bent steel plate is installed on a large pull.

FIG. 3 is an explanatory plan view showing measurement points of a cushioning effect value on a floor surface.

[Explanation of symbols] 1 support leg 4 Daihiki 5 vibration-damping bent steel plate 5a protrusion 6 surface plate

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Kazumi Sawamura 1-2-1, Marunouchi, Chiyoda-ku, Tokyo Japan Steel Pipe Co., Ltd. (72) Nobuyuki Nakamura 1-2-1 Marunouchi, Chiyoda-ku, Tokyo Japan Steel Pipe Incorporated (72) Inventor Atsushi Ninomiya 1-2-1, Marunouchi, Chiyoda-ku, Tokyo Nippon Steel Tube Co., Ltd.

Claims (2)

[Claims] 1. A support leg is arranged in a plurality of parallel straight lines at appropriate intervals, and a plurality of large pulls are held on the support leg in a direction parallel to the straight line. In the floor structure of a gymnasium with a finishing plate on it, the space between Daihiki is 8
The floor structure of a gymnasium, characterized in that it is formed to have a size of 00 to 1300 mm, and the interval between the support legs on the straight line is formed to be 700 to 1000 mm. 2. In the above floor structure, a central portion of a rectangular portion surrounded by four adjacent support legs, an intersection of the support legs and Daihiki, a midpoint between two support legs in a direction orthogonal to Daihiki, and a large Each buffer effect value of the midpoint between the two supporting legs in the pulling direction is 20 to
The floor structure of the gymnasium according to claim 1, which is set to 30.