JPH10196036A - Domed roof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To apply a natural lighting system to a domed roof used for a large- scale facility. SOLUTION: The upper part of an arch type body structure to bear roof surface 3a is projected thereto, and a top light 14 is provided on the projected part for introducing natural light. In addition, the body structure is formed to have triangular cross section, and the top thereof is projected to the roof surface 3a. Also, the top light 14 is formed to have an angled shape along the top shape of the body structure. Also, a membrane 20 formed out of semi- light transmissive material is mounted on the lower part of the body structure, so as to be positioned below the top light 14, and ceiling surface 12a in the vicinity of the membrane 20 is made of a light reflective ceiling material 12. Furthermore, an open/close shading means 30 is installed under the top light 14. In this case, the shading means 30 is made of a shading plate 31 capable of turning and closing due to a dead load. In addition, a window 40 is formed on the top light 14 for ventilation and smoke exhaustion.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dome-shaped roof provided in a large-scale facility such as a baseball field or a soccer stadium.

[0002]

2. Description of the Related Art As is well known, in the past, it was usual in the past that roofs were not provided in such large-scale facilities. Is becoming common practice. Various types of roof structures applied to such large-scale facilities, such as arch structures, shell structures, three-dimensional truss structures, suspension structures, and air film structures, have been proposed and implemented. Are the most common.

[0003]

However, if the above facility is covered with a roof, natural light cannot be taken naturally, and artificial lighting must always be used. Relying entirely on artificial lighting can provide the required illuminance, but it cannot be denied that the atmosphere inside is closed, which may not be desirable depending on the competition or event to be held. In addition, securing the illuminance of all competitions and events with artificial lighting requires huge maintenance costs such as electricity bills. For this reason, roofs installed in this type of facility that can receive natural light are desired. Was.

[0004]

SUMMARY OF THE INVENTION In view of the above circumstances, the present invention is directed to a dome roof having a roof surface supported by an arch-shaped structure, wherein an upper portion of the structure is projected on the roof surface. The projection is provided with a top light for collecting natural light. In the present invention, it is preferable that the cross-sectional shape of the structure is triangular, the top of the structure protrudes from the roof surface, and the top light is formed in a mountain shape along the shape of the top of the structure. In addition, a film material made of a semi-translucent material is attached to the lower part of the structure by being positioned below the top light, and at least a ceiling surface near the top light is formed by a light-reflective ceiling material. It is conceivable that a part of the natural light taken from the top light is reflected toward the ceiling surface by the film material and is reflected downward by the ceiling surface. Further, it is preferable to provide a light-shielding means which can be opened and closed below the top light, and the light-shielding means is constituted by using a light-shielding plate whose lower part is pivotally supported and which can be rotated in the vertical direction, and which is arranged upward. It is preferable that the opening state is maintained by rotating and locking, and the opening state is released by the rotation and closed by releasing the locking.
It is also possible to provide an openable window for ventilation and smoke exhaust in the top light.

[0005]

Embodiments of the present invention will be described below. FIG. 1 is an enlarged sectional view of a main part of a dome roof 1 according to the present embodiment, and FIGS. 2 and 3 are whole vertical sectional views of a stadium facility provided with the roof 1. The roof 1 according to the present embodiment is a dome-shaped one having a circular or elliptical shape in plan view. 5 and a ring truss 6 located at the boundary between them.

As shown in FIG. 1, the structure 2 has two arch members 7, a truss 8 functioning as a stiffener for the arch members 7, and the arch member 7 and the truss 8. And a bundle material 9 for connecting the two. The truss 8 is composed of an upper chord 8a and two lower chords 8
b, a triangular cross-section composed of lattice members 8c connecting them, wherein the arch material 7 is connected to each lower chord material 8b by a bundle material 9 so that the entire structure 2 has a triangular shape. It has been. A connecting member 10 for connecting the lower chord members 8b of the truss 8 is erected between the adjacent structures 2 and a roofing member 11 is mounted on the connecting members 10 so that the roof surface of the central roof part 3 is provided. 3a is formed, and a ceiling member 12 is attached to a position on the lower surface side of the connecting member 10 to form a ceiling surface 12a. The connecting member 10 is also provided inside the structural body 2, but the ceiling member 12 is not attached to the connecting member 10 in order to enable lighting from a top light 14 described later. Further, as a material of the ceiling material 12, a material having light reflectivity, for example, a steel plate is used at least in a range near the structure 2 for the purpose of reflecting natural light collected from the top light 14. .

As described above, since the roof surface 3a is formed at a substantially intermediate position in the height direction of the structure 2, the top of the structure 2 projects above the roof surface 3a. The glass 13 is attached to the protruding top so as to be continuous with the roof surface 3a and to form a mountain according to the shape of the top of the structure 2, so that a mountain-shaped top light for collecting natural light. 14 are formed.

A semi-transparent material having a light transmittance of, for example, about 40% (in other words, a light reflectance of about 60%) is provided between the two arch members 7 forming the structure 2. The film member 20 made of is stretched so as to be slightly inclined to both sides and not to be loosened by being pulled up by the stretching member 21 at the center in the width direction. Therefore, as shown by the arrow in FIG. 1, a part of the natural light incident through the top light 14 is transmitted through the film material 20 and diffused, but the other light is diffused outside the structure 2 by the film material 20. The light is reflected downward, and is further reflected downward by a ceiling surface 12a formed by a ceiling material 12 having light reflectivity. Thereby, the top light 14
Natural light is effectively taken into the facility, and sufficient illuminance can be secured by itself when the weather is fine, and the direct light that may interfere with the competition inside can be blocked by the film material 20. It has become something.

The ceiling surface 12a inside the structure 2
Is provided with an openable and closable light blocking means 30 for blocking light from the top light 14 as required. The light-shielding means 30 in this example is configured using two light-shielding plates 31 whose lower part is pivotally supported by a shaft 33 and which opens and closes vertically in a double-door manner. The light-shielding plates 31 are locked in a state where they are turned upward as shown by the solid line to keep the open state, and are unlocked as needed, whereby the light-shielding plates 31 are quickly turned downward by their own weights and turned in a chain line. As shown in the figure, it is in a horizontal state and is in a closed state, in which the incident light from the top light 14 can be blocked to darken the inside of the facility. The opening / closing mechanism of the light-shielding plate 31 in this example is such that the wire 32 connected to the upper part of the light-shielding plate 31 is
3, and the wire 32 is operated at a distance to lock and release the light shielding plate 31. In particular, the locking of the light shielding plate 31 is released by a simple mechanism. The closing operation can be performed instantaneously.

In the roof 1 having the above-described top light 14, the roof 1 covers the entire facility, but the natural light is sufficiently collected by the large number of top lights 14 provided over the entire surface of the central roof portion 3. It is possible to make the atmosphere inside the facility open. Especially,
Since the top light 14 is incorporated in the structure 2 supporting the roof surface 3a, the top light 14 is mounted on the roof surface 3a.
The structure can be dispersed and arranged without any trouble, and a structure having a reasonable structure that effectively utilizes the form of the structure 2 can be obtained. In this example, the form of the top light 14 is the structure 2
Since the shape of the top is shaped like a mountain corresponding to the shape of the top, it is possible to secure a large daylighting area, and depending on the installation direction, daylighting from both directions is possible.

In the above embodiment, since the top light 14 is incorporated in the structure 2 having a triangular cross section, the top light 14 naturally has a mountain shape. The present invention is not limited to the above, and an appropriate form of a top light can be provided for a structure of an appropriate form.

It is also possible to construct the film material 20 so that it can be rolled up or folded or can be attached to and detached from the structure 2, so that it is developed only when necessary.
It is also possible to add a function as a sound absorbing material or an acoustic reflecting material to the film material 20 and use it to adjust and improve the acoustic characteristics inside the facility.

Further, the structure of the light shielding means 30 is not limited to the above-described structure in which the light shielding plate 31 is rotated to open and close, and for example, a light shielding means such as a take-up type roll screen is employed. Is also possible.

It is also conceivable to provide an openable window 40 at the top of the toplight 14 as shown by the dashed line in FIG. 1 and use it for ventilation and / or smoke removal.

Further, when such a facility is provided in a cold region or a snowy region, in the winter season, the inner surface of the glass 13 constituting the top light 14 may be condensed, or the roof surface 3a may be used.
It is assumed that the top light 14 is buried by the snow piled up on the top light 14 and hinders lighting. To prevent this, for example, the inside of the top light 14 is ducted to blow hot air to prevent condensation. Or top light 1
It is conceivable to provide a heater for snow melting around the area 4.

[0016]

As described above, the dome roof of the present invention
A toplight for collecting natural light is provided above the structure that projects above the roof surface, so that the roof can cover natural light more than the toplight while covering the entire facility. In addition, a natural atmosphere can be obtained, artificial lighting can be saved, and maintenance costs including electricity costs can be reduced. In addition, because the top light is incorporated into the structure that supports the roof surface, the top light can be dispersed and arranged without any trouble on the entire roof surface, and a reasonable structure that effectively uses the form of the structure I can do it.

In particular, the cross-sectional shape of the structure is triangular, and the top is protruded above the roof surface, and the top light is formed in a mountain shape along the top of the structure, thereby securing a large lighting area. It is possible to take light from both directions depending on the installation direction. Also, if a film material made of a semi-translucent material is attached to the lower part of the top light and the ceiling surface in the vicinity is formed by a light-reflective ceiling material, part of the lighting from the top light will be partially Is transmitted and diffused, is reflected by the film material and the ceiling surface, and is indirectly taken in. Thus, sufficient and uniform illuminance can be ensured, and direct light can be blocked by the film material. Further, if a light-shielding means that can be opened and closed is provided below the top light, the inside of the facility can be darkened as necessary. If a light-shielding plate that is rotated and closed by its own weight is adopted as the light-shielding means, it is simple. The mechanism can be closed quickly. In addition, if an openable window is provided in the top light, it can be used for ventilation and smoke exhaustion.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing a main part of a roof according to an embodiment of the present invention.

FIG. 2 is an entire vertical sectional view of a facility provided with the roof.

FIG. 3 is an overall vertical sectional view in the other direction.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Dome roof 2 Structure 3 Central roof 3a Roof surface 11 Roof material 12 Ceiling material 12a Ceiling surface 14 Top light 20 Film material 30 Shading means 31 Shading plate 40 Window

 ──────────────────────────────────────────────────続 き Continuing from the front page (71) Applicant 390028015 Jizaki Kogyo Co., Ltd. 2-23-1, Nishi-Shimbashi, Minato-ku, Tokyo (71) Applicant 597005727 Ballast Nedam International BV Netherlands Amstelveen 1180 EH P.O. Box 2330 Learn van Cronenberg 2 (72) Inventor Attack Ogasawara 1-3-2 Shibaura, Minato-ku, Tokyo Shimizu Corporation Inside (72) Inventor Kiyoo Tachi 1-4-27 Koraku, Bunkyo-ku, Tokyo Shares Within Nikken Sekkei (72) Inventor Tadao Kamei 1-4-27 Koraku, Bunkyo-ku, Tokyo Incorporated Nikken Sekkei (72) Inventor Hiroyuki Udaka 1-4-27, Koraku, Bunkyo-ku, Tokyo (72) Inventor Katsuo Kamogawa 6-26-3 Minamioi, Shinagawa-ku, Tokyo Chiyoda Corporation (72) Inventor Nagatake Kuwashima 2-23-1, Nishi-Shimbashi, Minato-ku, Tokyo Co., Ltd. Inside Jizaki Kogyo Co., Ltd. (72) Inventor Arnold Hoover Amstelveen The Netherlands 1180 ECP Box 2118 Learn van Cronenberg 2 Ballast Nedam Engineering

Claims (6)

[Claims] 1. A dome roof having a roof surface supported by an arch-shaped structure, wherein an upper portion of the structure is projected above the roof surface, and a top light for taking in natural light is provided on the projected portion. Dome roof characterized by being provided. 2. The dome roof according to claim 1, wherein the structure has a triangular cross-sectional shape, a top of the dome protrudes from a roof surface, and the top light has a chevron shape along the shape of the top of the structure. Dome roof characterized by being formed in. 3. The dome roof according to claim 1, wherein the dome roof is located below the top light, and a film material made of a semi-translucent material is attached to a lower portion of the structure, and at least the top light is provided. A ceiling surface in the vicinity of is formed by a light-reflective ceiling material, and a part of natural light taken from the top light is reflected toward the ceiling surface by the film material and reflected downward by the ceiling surface. Dome roof characterized by doing. 4. The dome roof according to claim 1, wherein the dome roof is provided with a light blocking means that can be opened and closed below the top light. 5. The dome roof according to claim 4, wherein said light shielding means is constituted by a light shielding plate whose lower part is pivotally supported and is rotatable in a vertical direction, and said light shielding plate is rotated upward. A dome roof characterized in that the dome roof is configured to hold an open state by being locked by being locked, and to be rotated downward by its own weight and closed by releasing the locked. 6. The dome roof according to claim 1, wherein the top light is provided with an openable window for ventilation and smoke exhaustion.