JPH08165736A - Shed of stadium using cable - Google Patents

Abstract

PURPOSE: To make it possible to design a roof with a small section of member in comparison with a relatively large-sized cantilever type roof such as soccer stadium, etc., and to enable safe construction against upward load suck as blowing up wind load, etc. CONSTITUTION: A cantilevered roof 1 covering upward of a lower structure skeleton B in a stadium is connected to bearing posts 2 erected to the peripheral surface of the lower structure skeleton B in the basic end of the roof with pins so as to make it possible to incline in the vertical direction, and posts 4 and 4' are connected to the front end of the roof 1 with pins so as to make it possible to incline in the horizontal direction. Cables 6-A bearing the roof 1 in the vicinity of the lower parts of the posts are respectively tensioned to the ground foundation 9 through the bearing posts 2 to resist downward load such as dead-weight, etc. Cables 6-C are connected between the upper parts of a pair of up and down posts 4 and 4', and cables 6-B from the upper parts of the posts are respectively tensioned to the ground foundation 9 through the bearing posts 2 to resist load acting upward of blowing up wind load, etc. An unstable phenomenon caused by load acting unequally on both right and left roofs with diagonal line shaped cables 6-C' in a side view can be prevented.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stadium roof using a cable which is applied when a cantilevered roof is hung only on the spectator seats in a relatively large stadium such as a soccer stadium. is there.

[0002]

2. Description of the Related Art In recent years, domestic and international soccer competitions have become popular at various places, and large stadiums capable of accommodating a large number of spectators have been constructed. Of these, many facilities have been built to cover the entire stadium with a roof, but in soccer and other ball games, since the game is played on a natural lawn, the entire stadium is not covered with a roof, only the spectator seats are covered with a roof. It is common to cover. In addition, it is desirable that no columns be provided in the audience seats so as not to obstruct the view of the audience.

As a conventional roof of this type, there is often a cantilever type in which the base end is supported by a pillar or the like provided on the outer periphery of the body behind the spectators' seats and the front end is protruded. In the case of a relatively large roof, as shown in FIGS. 7 (a) and 7 (b),
A method is often adopted in which posts are erected on the skeleton and the roof that covers the upper part of the audience seats is hung with cables.

[0004]

However, when a conventional cantilever type roof having a length of 30 to 40 m is hung, the beam member needs a large cross section, which is uneconomical.
Further, in the method of suspending the roof with a cable or the like, although the beam member cross section of the roof can be made small, if the weight of the roof is light, the design may be difficult with respect to the wind load of blowing up.

The present invention has been made to solve the above-mentioned problems, and an object thereof is to enable the design of a roof with a small member cross section for a relatively large cantilever type roof, and (EN) It is an object to provide a stadium roof using a cable that can have a safe structure against an upward load such as a wind load of blowing up.

[0006]

According to the present invention, as shown in FIG. 1, a cantilevered roof 1 which covers an upper part of a lower structure skeleton B of a stadium is arranged to face each other across a field space. In the stadium roof, a support pillar 2 is erected on the outer peripheral portion of the lower structural body B, and the roof 1 is pin-joined to the support pillar 2 at the base end portion of the roof so as to be tiltable in the vertical direction. , This roof 1
Posts 4 and 4'are pin-joined to the tip of the post so as to be tiltable in the front-rear direction, and cables 6-A supporting the roof 1 near the lower part of the posts are tightly connected to the ground foundation 9 via the support columns 2, respectively. A cable 6-C is connected between the upper portions of the posts 4 and 4'which are opposed to each other across a field space, and a cable 6-B from the upper portion of the post is tightly connected to a ground foundation 9 via a support column 2. It is characterized by

Further, a cable 6-C 'having a diagonal shape in a side view is arranged between the posts 4 and 4'which face each other across the field space.

[0008]

With the above-mentioned structure, the roof 1 and the posts 4.4 'are connected to the cables 6-A, 6-B, 6-C, 6-.
Tensioned by C '. The cable 6-A supports the tip of the roof 1 in the vicinity of the lower part of the posts 4 ', and is anchored to the ground via the upper part of the support column 2, respectively.
Downward loads such as the roof's own weight are transmitted to the ground by the tension of the cable 6-A. On the other hand, cable 6-B
Are anchored to the ground via the upper portions of the support posts 2 from the upper portions of the posts 4 ', which are connected and held by the cable C, and the upward load such as the wind load of blowing up is fixed to the cable 6-B. It is transmitted to the ground by tension.

The left and right posts 4 and 4'opposing each other across the field space are reinforced and held by cables 6-C 'arranged diagonally in a side view, and the left and right roofs 1 are loaded with a single load. This can be avoided by balancing the instability phenomenon when an uneven load is applied.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to illustrated embodiments. This is an example applied to a soccer field having a rectangular shape in a plan view, and FIGS. 1, 2 and 3 show a first embodiment of a shed structure according to the present invention, and FIGS. The second embodiment is shown in FIG.

In FIG. 1, the soccer stadium is mainly composed of a field portion A and a lower structure skeleton B constituting the spectator seat portions which are arranged so as to face each other across the field portion A, and above each lower structure skeleton B. The truss roofs 1 each having a rectangular shape in plan view and covering this portion are respectively disposed.

As shown in FIGS. 1 and 2, at the outer peripheral portion of each lower structural body B, that is, at the upper rear portion, a supporting column 2 is integrally provided upright and inclined outward. This support pillar 2
Are arranged at intervals in the longitudinal direction of the truss roof 1, and the base end portion of the truss roof 1 is located below the middle portion of each of the support columns 2 through horizontal pins 3 and brackets. The truss roof 1 is attached so that the truss roof 1 can be tilted in the vertical direction about the horizontal pin 3.

A post 4 is provided at the tip of each truss roof 1.
The lower ends of the roof (longitudinal portion in the longitudinal direction) and the post 4 '(both ends in the longitudinal direction of the roof) are attached via horizontal pins 5 and brackets, and the posts 4 and 4'are arranged in the front-rear direction about the horizontal pin 5. It is possible to tilt. This post 4
4'is arranged at the same position as the arrangement position of each support column 2 in the longitudinal direction of the truss roof 1.

Such a truss roof 1 and posts 4
4'includes a pair of posts 4'and 4'which face each other across the space above the field portion A and four types of cables 6-A, 6-B, 6-C, 6-C arranged for each support column 2. 'Is tensely supported.

The cable 6-A is a cable that bears a downward load such as the truss roof 1, the posts 4 and 4 ', and the weight of the cable itself, and supports the truss roof 1 and the like below the posts 4 and 4'. Via the upper ends of the pillars 2, they are respectively connected to a lifting tensioner 10 such as a winch installed on the ground foundation 9.

In this embodiment, a pulley 7 is provided on the upper surface of the tip of the truss roof 1, and a pulley 8 is provided on the upper end of the support column 2.
The cable 6-A is bridged over the pulleys 7 at the ends of the pair of left and right truss roofs 1 facing each other across the field space, and both ends thereof are respectively connected to the pair of left and right lifting hoisting machines 10 such as winches via the pulleys 8. It is connected. In this way, by connecting the front end portions of the pair of left and right truss roofs 1 with the cable 6-A, it is possible to stably support a downward load such as its own weight.

The cable 6-B is a cable 6-to be described later.
Together with C, it is a cable that bears an upward load due to the wind load of blowing up acting on the truss roof 1, one end of which is fixed to the upper ends of the posts 4 and 4'and the other end of which is provided on the upper ends of the support columns 2. Via a pulley 11, they are connected to a pair of left and right winch tensioning machines 12 such as winches.

Both ends of the cable 6-C are fixed to the upper ends of a pair of left and right posts 4 and 4'which face each other across the field space, and the pair of left and right posts counter the tension of the cable 6-B. It is a cable that keeps the intervals of 4.4 'constant and holds the posts 4.4' vertically.
The two cables 6-C 'arranged diagonally in a side view are to avoid instability by balancing the pair of truss roofs 1 facing each other when receiving an uneven load such as a single load. It is a reinforcing member provided. A turnbuckle 13 is provided on these cables 6-C and 6-C ′,
The length can be adjusted.

As shown in FIG. 3, the posts 4 and 4'adjacent to each other in the longitudinal direction of the truss roof 1 have a cable (or a polymer rope such as Kepler) 14 between the upper portions and a turnbuckle 15. Two braces 16.1
Connect at 6 '. As shown in FIG. 1 (c), struts 17 along the posts 4 ′ are erected on both ends of the truss roof 1 in the longitudinal direction, and after the truss roof 1 is lifted to a predetermined height, The column 17 and the post 4'are firmly fixed using a fastener.

Next, the second embodiment shown in FIGS.
The structure is basically the same as that of the first embodiment in FIG.
The same or corresponding members are designated by the same reference numerals.
In this second embodiment, as shown in FIGS. 4 and 5, the base end portion of the truss roof 1 is attached to the upper end portion of the support column 2, and the post 4 is attached.
The middle part of 4'is attached to the tip of the truss roof 1 so that the truss roof 1 is located above the first embodiment.

The pulley 7 of the cable 6-A is provided at the lower end of the post 4, and the pulley 8 is provided below the pulley 11 of the cable 6-B. In addition, the brace members 16 and 16 'are shown in FIG.
(C), as shown in FIG. 6, the upper and lower ends of the posts 4 and 4'and the adjacent posts 4 on the truss roof 1
・ Connects with the middle part of 4 '. Other configurations are first
Same as the embodiment.

In constructing a shed having the above-described structure, the truss roof 1 is pulled up by the following procedure, for example.

(1) The lower structure skeleton B is built, and the support columns 2 are integrally erected on the outer peripheral portion of the lower structure skeleton B.

(2) Assemble the truss roof 1 on the substructure frame B or the like, and attach the base end of the truss roof 1 to the support column 2 via the horizontal pin 3 or the like. In addition, each cable 6-A,
6-B, 6-C and 6-C 'are arranged.

(3) The lengths of the cables 6-C and 6-C 'are adjusted by the turnbuckle 13 so that the distance between the pair of left and right posts 4 and 4'can be kept constant.

(4) The pair of left and right lifting hoisting machines 10 are synchronously driven to pull down both left and right ends of the cable 6-A, and the pair of left and right truss roofs 1 are tilted and raised about the horizontal pin 3. At this time, the pair of right and left cables 6-B are also pulled down by the respective object lifting tensioners 12 to prevent instability of the posts 4.4 'during pull-up.

(5) The cables 6-A and 6-B are tensioned by the lifting tensioners 10 and 12, and the truss roof 1 is lifted to a predetermined design height. When a predetermined tension is introduced, the cables 6-A and 6-B are fixed to the ground foundation 9 by appropriate means.

For example, the lower ends of the cables 6-A and 6-B are fixed to the ground foundation 9 via a fixing device. Further, after the truss roof 1 is lifted to a predetermined height, the post 4 ′ is firmly fixed to the end of the column 17 by using a fastener.

It should be noted that although the rectangular soccer stadium roof has been described above, it is needless to say that the present invention can be applied to a circular or oval stadium, an athletic stadium, or the like. Further, it goes without saying that the roof structure is not limited to the truss structure and is also applied to a general steel frame roof.

[0030]

EFFECTS OF THE INVENTION In the stadium roof according to the present invention, a roof having a post at its tip is attached to a support pillar that is erected on the outer peripheral portion of the lower structure frame, and the roof is subjected to a downward load such as its own weight. Since the lower cable that bears it and the upper cable that bears an upward load such as wind are combined for tension support, the following effects are achieved.

(1) Since the upper cable and the lower cable resist the downward load and the upward load acting on the roof, respectively, it is possible to reduce the roof member cross section even with a relatively large roof. In addition, the structure can be made safe even against an upward load such as a wind load of blowing up.

(2) In the lower structure of the spectator seat portion, no stress other than the axial force is generated from the supporting column at the rear of the spectator seat, so that the lower structure can be easily designed.

(3) The height of the roof tip can be arbitrarily changed by adjusting the lengths of the upper and lower cables.

[Brief description of drawings]

FIG. 1 shows a first embodiment of a stadium roof according to the present invention, (a) is a cross-sectional view, (b) is a plan view, and (c) is a cross-sectional view taken along line cc of (b). is there.

FIG. 2 is a partially enlarged view of FIG. 1, (a) is a plan view,
(B) is a cross-sectional view.

FIG. 3 shows the post portion at the roof tip of FIG.
(A) is an overall perspective view, and (b) is a partial perspective view.

FIG. 4 shows a second embodiment of the stadium roof according to the present invention, (a) is a horizontal sectional view, (b) is a plan view, and (c) is a sectional view taken along the line cc of (b). is there.

5 is a partially enlarged view of FIG. 4, (a) is a plan view,
(B) is a cross-sectional view.

FIG. 6 shows the post portion at the roof tip of FIG.
(A) is an overall perspective view, and (b) is a partial perspective view.

7 (a) and 7 (b) are a frame structure perspective view and a sectional view, respectively, showing an example of a stadium roof using conventional cables and the like.

[Explanation of symbols]

A: Field part, B: Lower structure frame (audience seat part)
1 ... Truss roof, 2 ... Support pillar, 3 ... Horizontal pin, 4 '
... Posts, 5 ... Horizontal pins, 6-A, 6-B, 6-C, 6
-C '... Cable, 7, 8 ... Double pulley, 9 ... Ground foundation, 10 ... Lifting tensioner, 11 ... Pulley, 12 ... Lifting tensioner, 13 ... Turnbuckle, 14 ... Cable (wire), 15 ... Turnbuckle, 16 ・ 16 '... Brace material.

Claims (2)

[Claims] 1. A stadium roof in which a cantilevered roof covering an upper part of a lower structure skeleton of a stadium is arranged to face each other across a field space, the outer structure of the lower structure skeleton being provided. A supporting pillar is erected, and the roof is vertically tilted to the supporting pillar by pin-joining at the base end portion of the roof, and a post is pin-joining to the tip of the roof so that the roof can tilt in the front-rear direction. Cables supporting the roof near the lower part are tightly connected to the ground foundation via the support columns respectively, and the upper parts of the posts facing each other across the field space are connected by cables, and the cables from the upper part of the posts are connected to the support columns. A stadium shed using cables, which is characterized by being tightly connected to the ground foundation via each. 2. The stadium roof using the cable according to claim 1, wherein a cable having a diagonal line in a side view is arranged between posts facing each other across a field space.