JPH06185118A - Stadium structure - Google Patents

Abstract

PURPOSE:To allow a roofing structure of a stadium to overcome possible blowup force, avoid it from becoming heavy and large, and prevent the construction costs rising. CONSTITUTION:A roofing structure 5 of a stadium is composed of an outer roof part 6 in conical form and an inner roof part 7, the latter being formed above the former 6. An opening 14 is furnished in the inner roof part 7, and the inner framework forming the opening 14 is configured with major beams 15, and their intersections are fastened by pins onto the outer roof part 6. Using support columns 20, this roofing structure 5 is secured onto the ground at these intersections of the major beams 15, which are equipped with the counter-weight function, and thereby the roofing structure 5 is allowed to overcome a blowup force.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stadium structure which is a large-scale facility such as a baseball field and a sports field.

[0002]

2. Description of the Related Art It has been common that large-scale competition facilities such as baseball fields and sports fields are not provided with roofs, but in recent years, facilities that can be used regardless of the weather have been desired. , A roof of air film structure was used in which a glass fiber woven fabric was coated with a resin containing tetrafluoroethylene resin (Teflon resin) as a main component as a roof material, and this was inflated by air pressure. The facility is in practical use.

However, in a facility having an air film structure roof, a competition that should originally be performed in a natural environment is performed indoors, which not only spoils the taste, but also costs the power to pressurize the facility. However, the structure of the opening is complicated in order to maintain the airtightness in the facility. Therefore, in recent years, various types of materials that have rigidity and can be opened and closed as needed are provided. Roof structures have been proposed.

FIG. 1 shows a conventional roof structure of this type.
1 (1), a structure having a roof mainly composed of an annular truss structure 30 only on the seats 40, and FIG.
As shown in (2), there is a structure in which the truss structure 30 of the roof structure is supported by the support columns 39.

[0005]

However, in the above conventional stadium structure, since the blowing force of the wind acts on the roof portion, the framework of the truss structure 30 is designed to cope with the blowing force. It is necessary to strengthen the structure, which causes a large problem in constructing a large stadium structure, such as an increase in the size and weight of the roof structure and an enormous construction cost of the structure.

The present invention has been made in view of the above problems, and an object thereof is to make a roof structure capable of coping with a blowing force, thereby increasing the size of the roof structure. An object of the present invention is to provide a stadium structure which can avoid the increase in weight and can solve a big problem in constructing a large stadium structure such as a huge construction cost of the structure.

[0007]

In order to achieve the above object, the present invention provides a roof structure including an outer roof portion having a cone shape and an inner roof portion formed on the upper side of the outer roof portion. The inner roof is provided with an opening, and the inner frame that forms this opening is made up of girders.The intersections of these girders are attached to the upper side of the outer roof by pin support, and at the intersections of the girders. It is characterized in that the roof structure is fixed to the ground by support columns.

Further, in the stadium structure according to the first aspect, a string beam is used as the large beam.

[0009]

According to the structure of claim 1, when the girder has the function of a counterweight and the supporting columns are provided, when the wind-driven uplifting force acts on the roof structure, the roof structure receives the uplifting force. Therefore, it is not necessary to make the roof structure stronger than necessary, and it is possible to avoid an increase in the size and weight of the roof structure.

[0010]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a perspective view of a stadium structure according to the present invention, FIG. 2 is a plan view of the stadium structure, and FIG. 3 is FIG. 2A-A.
2 is a cross-sectional view taken along the line, FIG. 4 is a cross-sectional view taken along the line 2B-B, and FIG. 5 is a cross-sectional view taken along the line 2C-C.

In the figure, 1 is a column which is erected at a predetermined interval so as to form an ellipse as a whole in a plan view, and 2 is an outer wall. A ground 3 is provided inside the outer wall 2, and a stand 4 for accommodating spectators is provided around the ground 3.
Is formed.

Above the stand 4, a roof structure 5 having a truncated cone shape (a truncated elliptical cone shape) is provided. The roof structure 5 includes an outer roof portion 6 having an elliptical cone shape and a flat inner roof portion 7 located on the top of the outer roof portion 6. The inner roof portion 7 has a substantially elliptical shape as a whole in a plan view.

The outer roof portion 6 has a three-dimensional truss structure, and is assembled by an outer shell member 8 made of iron frame material, an upper chord member 9a, a lower chord member 9b, and a lattice member 10, and the inner peripheral edge portion, the intermediate portion and the outer peripheral edge portion thereof. The reinforcement ring 11,
12, 13 are arranged, and the reinforcing ring 11 at the inner peripheral edge portion mainly bears the compressive force, and the reinforcing ring 13 at the outer peripheral edge portion mainly bears the tensile force. The outer roof portion 6 has the outer peripheral portion of the three-dimensional truss structure supported by the roller or the sliding support on the upper end portion of the pillar 1 or the outer wall 2.
It is supported by the pillar 1 or the outer wall 2.

The inner roof portion 7 has a three-dimensional truss structure similar to the outer roof portion 6, and is made of an outer shell member 8 ', an upper chord member 9a', a lower chord member 9b 'and a lattice member 10', each of which is made of a steel frame. It is assembled integrally with the three-dimensional truss structure of the roof portion 6. An opening 14 is formed in the center of the inner roof portion 7. The opening 14 is a rectangle that is long in the long axis direction of the inner roof 7, and the inner frame is arranged on the four sides of the opening 14.

The girder 15 is used as the inner frame. Since the opening 14 has a rectangular shape, left and right girders 15 (the longitudinal direction of the rectangle is left and right)
Have the same dimensions, and the front and rear girders 15 (the rectangular lateral direction is the front and rear) have the same dimensions, and the left and right girders 1 have the same dimensions.
It is longer than 5. These girders 15 are truss-structured steel beams. The cross beam is pin-supported on the upper side of the outer roof portion 6 at the intersection, and a counterweight function is provided. That is, as shown in FIGS. 3 and 4, the girder 15 includes an upper chord member 16a of the outer roof portion 6, an upper chord member 16a of the upper chord beam 16 of the girder 15, and a lower chord member 9b of the upper chord member 16 of the girder 15. The lower chord members 16b are pin-supported and joined to the upper side of the outer roof portion 6.

The roof structure 5 includes the girders 15
Ground (ground) by the support pillar 20 at the four intersections of
It is fixed at 3.

The truncated cone-shaped roof structure 5 constructed as described above is provided with an exterior material (not shown) over the entire surface thereof, and the inner roof portion 7 and the opening portion 14 thereof are later provided. The stadium structure can be dealt with even when the movable roof structure 19 that opens and closes at is provided.
That is, the girder 15 also serves as a structure that supports the movable roof structure 19.

The following operation will be described.

Since the opening 14 is opened in the roof structure 5, a blowing force due to wind acts on the roof structure 5. However, as described above, the girder 15
Constitutes an inner shell member of the opening 14, and the intersections of adjacent girders 15 are coupled to the upper side of the outer roof portion 6 by pin support to form a kind of counterweight. Since the roof structure 5 is fixed to the ground (ground) 3 by the support pillars 20 at the four intersections of the girders 15, the roof structure 5 can cope with the blowing force. Moreover, since the girder 15 is only provided as an inner shell member of the opening 14, and the support column 20 is provided, it is not necessary to make the roof structure 5 stronger than necessary, and the roof structure 5 has a large size. And high weight are avoided.

As described above, the girder 15 is attached to the upper chord member 9a of the outer roof portion 6 and the upper chord member 16 of the upper chord beam 16 of the girder 15.
a to the lower chord member 9b and the lower chord member 1 of the upper chord beam 16 of the girder 15
6b are respectively pin-supported and connected to the outer roof portion 6, but as shown in FIG.
Further, the lower chord member 16b of the upper chord beam 16 of the girder 15 may be supported by a pin so that the intersection of each girder 15 is coupled to the outer roof portion 6.

As the large beam 15 described above, a tension string beam 15-1 shown in FIG. 7 may be used. This tension string beam 15-1
Upper chord beam 16-1 having a length equal to the length of each side of the opening 14
In addition, the upper end of the compression member 17 whose length gradually decreases from the central portion of the upper chord beam 16-1 toward the left and right ends is coupled to the upper end of the upper chord beam 16-1 from the left end of the compression member 17. A cable (lower chord member) 18 is stretched from the lower end portion to the right end portion of the upper chord beam 16-1, and the end portion of the cable 18 is pin-connected to the center portion of the left and right end portions of the upper chord beam 16-1. There is.

The tension string beam 15-1 is characterized in that a rational balance system can be obtained by using the cable 18 and the weight is lighter as a whole than a beam having a steel frame structure.

The tension string beam 15-1 thus constructed is
The intersection is pin-supported on the upper side of the outer roof portion 6 to be a structural member of the inner roof portion 7 and has a counterweight function.

Moreover, when the stringed beam 15-1 is used as the girder 15, the girder 15 can be reduced in weight, and the roof structure 5 can cope with the uplift force and the roof structure. It is not necessary to make the body 5 stronger than necessary, and it is possible to avoid increasing the size and weight of the roof structure 5.

Therefore, it goes without saying that even in the case of the stringed beam 15-1, it becomes a structure that supports the movable roof structure 19 in the same manner as the large beam 15 composed of the steel beam.

Although the roof structure 5 constructed as described above has a truncated elliptical cone shape which is a part of the truncated cone shape, it has a truncated cone shape and a truncated pyramid shape. May be.

The shape of the opening 14 formed in the inner roof portion 7 in plan view may be polygonal as shown in FIG. Also in this case, the girders 15 having the lengths corresponding to the respective side lengths are used for the inner frame structure of each side of the opening 14, and the intersections of the girders 15 are located above the outer roof portion 6. Is provided with a counterweight function by being pin-supported to the roof structure 5, and the roof structure 5 is grounded (supported by the ground) by the support columns 20 at the intersections of the girders 15.
It is fixed at 3. Also in this case, the roof structure 5 can cope with the blowing force, and it is not necessary to make the roof structure 5 stronger than necessary, and the roof structure 5 is increased in size,
Higher weight is avoided.

Further, the roof structure 5 may be a curved structure in which the curved surface of the outer roof portion 6 is extended as it is without flattening the inner roof portion 7 as shown in FIG. In this case, each side of the opening 14 draws a curved line a convex upward,
The opening 14 is rectangular in plan view. Also in this case, the girders 15 having the lengths corresponding to the respective side lengths are used for the inner frame structure of each side of the opening 14, and the intersections of these girders 15 are supported on the outer roof by pin support. Part 6
Of the roof structure 5 is connected to the upper side of the girder with a counterweight function, and further, the roof structure 5 is grounded (supported on the ground) by the support columns 20 at the intersections of the girders 15.
It is fixed at 3. Also in this case, the roof structure 5 can cope with the blowing force, and it is not necessary to make the roof structure 5 stronger than necessary, and the roof structure 5 is increased in size,
Higher weight is avoided.

As shown in FIG. 10, these large girders 15 are upper chord girders 1 which are fitted to the curved line a which is convex upward on each side of the opening 14.
It becomes the structure which has 6. Further, in the case of such a configuration, it is preferable to provide a fixed roof in the opening portion 14, and the girder 15 becomes a structure that supports the fixed roof as described above.

[0030]

As described above, according to the present invention, the roof structure is constituted by the cone-shaped outer roof portion and the inner roof portion formed on the upper side of the outer roof portion. An opening is provided in the structure, the inner frame structure that forms this opening is composed of large beams, the intersections of these large beams are attached to the upper side of the outer roof by pin support, and the roof structure is supported by the pillars at the intersections of the large beams. Since the roof structure is fixed to the ground, when the roof structure is subjected to a wind blowing force, the girder exerts a counterweight function, and the support columns allow the roof structure to cope with the blowing force. Moreover, since the girder is only provided as an inner member of the opening, it is not necessary to make the roof structure stronger than necessary, and it is possible to avoid the roof structure from becoming large and heavy. It is possible to solve a big problem in constructing a large-scale stadium structure such as a huge construction cost of the structure.

Further, in the stadium structure according to claim 1, since the girder beam is used for the girder, not only the roof structure can cope with the blowing force, but also the girder can be reduced in weight and the roof can be reduced. When constructing a large stadium structure, which does not need to be stronger than necessary, can avoid the increase in the size and weight of the roof structure, and the huge construction cost of the structure. The big problem of can be solved.

Further, when the above-mentioned stadium structure is completed, electric equipment such as lighting and speakers can be attached to the girder, and this girder can be used as a mounting portion for the electric equipment and the like.

[Brief description of drawings]

FIG. 1 is a perspective view of a stadium structure according to the present invention.

FIG. 2 is a plan view of the same stadium structure.

FIG. 3 is a sectional view taken along the line AA of FIG.

FIG. 4 is a cross-sectional view taken along the line BB of FIG.

FIG. 5 is a sectional view taken along the line C-C of FIG.

FIG. 6 is an explanatory view of another mounting structure for a girder.

FIG. 7 is a front view of a string beam.

FIG. 8 is a plan view of another embodiment of the roof structure.

FIG. 9 is a perspective view of another embodiment of the roof structure.

FIG. 10 is a front view of a girder used for the roof structure.

FIG. 11 (1) is a vertical cross-sectional view of a roof structure in a conventional stadium structure. (2) is a vertical cross-sectional view of another roof structure of a conventional stadium structure.

[Explanation of symbols]

 5 Roof structure 6 Outside roof part 7 Inner roof part 14 Opening part 15 Large beam 15-1 Stranded string beam 20 Support pillar

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Toshiyuki Kawazoe 6-2-10 Ginza, Chuo-ku, Tokyo Tomoe Corporation (72) Yoshitaka Niho 6-2-10 Ginza, Chuo-ku, Tokyo Tomoe Corporation Within

Claims (2)

[Claims] 1. A roof structure is composed of an outer roof portion having a cone shape and an inner roof portion formed on the upper side of the outer roof portion, and an opening portion is provided in the inner roof portion. A competition characterized in that the inner frame frame to be formed is composed of girders, the intersections of these girders are attached to the upper side of the outer roof part by pin support, and the roof structure is fixed to the ground by the supporting columns at the intersections of the girders. Field structure. 2. The stadium structure according to claim 1, wherein a string beam is used as the girder.