JP2504155B2 - Roof shaft support structure for large span structures - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a roof shaft supporting structure for a large span structure, in which a roof covering a large space such as a dome roof that can be freely opened and closed is pivotally supported from above. is there.

[Problems to be Solved by the Invention]

As a method of realizing a roof frame with a large span and a high ceiling height, a single-layer air dome or the like has been conventionally practiced. However, the conventional method of completely covering the structure (stadium) to make the structure an indoor facility In contrast to this type of structure, on the other hand, a roof structure that allows the roof to be opened and closed depending on the weather and purpose of use, and has a variety of uses for the structure, while at the same time giving the visitors a sense of openness is desired. There is.

As a dome roof with this mechanism that can be opened and closed, the movable roof that constitutes the dome has been
Alternatively, a structure has been proposed in which the structure is stored by sliding it in one direction, stacking it, or folding a bellows-shaped roof that can expand and contract in one direction. In addition to the high degree of freedom in use, such large-scale structures also have equipment that complements the various events held internally from the aspect of production, and equipment that has a wide range of utilization as a facility. It will be required as an indispensable accessory.

The present invention has been made in response to this demand, and is intended to newly propose a frame structure having a structure that fulfills an additional function in a large span structure having a freely openable roof.

[Means for solving the problem]

In the present invention, it is installed across the roof of a large span structure,
By making the cross-section of a frame structure such as an arch that hangs and supports it hollow, and ensuring at least a space through which humans can pass inside, it is possible to incorporate equipment according to the purpose of use of various construction equipment and structures. , Add various functions to the structure. Further, by structurally separating the frame structure and the roof at a portion other than the fulcrum that pivotally supports the roof, a space is secured between the frame structure and the roof, and various facilities can be accommodated in this space portion.

This roof shaft support structure is installed spanning a structure around which a track is laid in a direction intersecting with the track, and rotatably supports the roof around a support shaft suspended on the top thereof.

〔Example〕

The present invention will be described below with reference to the drawings showing a dome structure D _S as an example of a large span structure and an arch A as a roof shaft supporting structure.

The present invention has a structure in which an arch A for suspending and supporting a dome roof D _R of a dome structure D _S as shown in FIG. 1 is hollow, and the inside thereof is used for housing building equipment and the like.

As shown in FIGS. 2 and 3, the dome structure D _S has a plurality of unit shells S constituting the dome roof D _R laid on the lower structure B in a ready state, and the unit shells S are erected on the upper part thereof. It is suspended and supported by the arch A.

The dome roof D _R is composed of a fan-shaped unit shell S divided into a plurality of pieces as shown in FIGS. 2 -I, II and 4-I, II showing the closed state thereof, and as shown in each figure III. When opened, a plurality of unit shells S are stored in an overlapping state as shown in FIG. If the embodiment of Figure 2 is formed in a shape arc along the arch A dome roof D _R, examples of FIG. 4 is a case of forming a parabolic shape which completely separated from the dome roof D _R .

A unit shell S is placed around the lower structure B as shown in Fig. 2-II, and a circular track serving as a guide for its movement is laid. The track 1 is laid concentrically for each unit shell S and continuously from the lower structure B to the arch A.

The arch A is installed so as to straddle this lower structure B in the diameter direction of the track 1.

As shown in FIGS. 3 and 4, a support shaft 2 for supporting all the unit shells S is suspended on the top of the arch A, and the unit shell S is suspended and supported by the support shaft 2, and the support shaft 2 is centered. To rotate and move.

Arch A and unit shell S, ie dome roof D _R
And are structurally separated at the outer portion of the support shaft 2.

The arch A has a hollow cross section, and at least a space through which humans can pass is secured inside. In the case of the embodiment shown in Fig. 4, various building equipment and a dome structure are further provided in the space under the top. Depending on the purpose of use of D _S , for example, the equipment for enhancing the effect of the lighting device 3, the image device, etc. as shown in FIG. 1 and the use of the top of the arch A as the observatory 4 are shown in FIG. Elevating device 7 including rails 6 for raising and lowering capsule 5 as shown, equipment such as a viewing room,
Or installed.

The arch A is made of steel or a composite structure of steel and concrete.

Arch A shape because it is separated at a portion other than the support shaft 2 and the dome roof D _R is not bound to the shape of the dome roof D _R, can be selected relatively freely curve or shape. For example, by forming a quadratic curve as shown in Fig. 4, which is completely separated from the dome roof D _R , the bending moment of the arch A itself due to its own weight is minimized, and the interior of the arch A is effectively installed in terms of equipment installation. It is possible to utilize the space, and by adopting this shape, it is possible to give symbolicity to the design arch A as the dome structure D _S.

Note that the shape of the arch A is not limited to the curved shape shown in the figure for the reason described above, and may be a mountain-shaped or gate-shaped ramen.

〔The invention's effect〕

 The present invention is as follows.

A roof is formed by an arch structure through which a person can pass, and a plurality of shells which are supported by a support shaft and constitute a part of a shell body mounted on a circular track. Therefore, the roof can be a thin curved plate.

When opening and closing the roof, the shell that forms the roof around the support shaft provided at the zenith is rotationally moved and overlapped on one shell to secure the opening. Therefore, a large aperture ratio can be secured.

In addition to the arch suspension that allows humans to pass through, the arch and the shell, which is the roof, may be separated, which enhances the added value of the frame structure in the space between them, such as lighting, video, audio equipment, and an observation deck. Etc. can be installed.

[Brief description of drawings]

FIG. 1 is a bird's-eye view showing the dome structure of the present invention, FIG. 2-I is its elevation view, II and III are plan views showing the closed and open states of the dome roof, and FIG. 3 is a sectional view. Fig. 4 shows another form of dome structure, where I is a closed state, II is a partially opened state, and III is a fully opened state, and Fig. 5 is installed inside the dome. It is an elevation view showing a lifting device as an example of equipment. D _S …… Dome structure, D _R …… Dome roof, A …… Arch, B …… Lower structure, S …… Unit shell, 1 ……
Orbit, 2 ... Support axis, 3 ... Lighting device, 4 ... Observatory,
5 ... Capsule, 6 ... Rail, 7 ... Lifting device.

 ─────────────────────────────────────────────────── ─── Continued Front Page (72) Inventor Shigefumi Yasutomi 1-2-7 Moto-Akasaka, Minato-ku, Tokyo Kashima Construction Co., Ltd. (72) Yoshihiro Sakanawa 1-2-7 Moto-Akasaka, Minato-ku, Tokyo Kashima Construction Co., Ltd. (72) Inventor Yukio Sano 1-2-7 Moto-Akasaka, Minato-ku, Tokyo Kashima Construction Co., Ltd. (72) Inventor Yuhiro Goten 1-2-7 Moto-Akasaka, Minato-ku, Tokyo Issue Kashima Construction Co., Ltd. (56) Reference JP-A-1-304237 (JP, A)

Claims (2)

(57) [Claims] 1. A lower structure having a plurality of circular tracks laid around its periphery has a hollow cross section spanning the tracks in a diametrical direction, and at least a space for human passage is secured inside. Arches are suspended, and in a circular track on the substructure,
The shell supported by a support shaft provided on the zenith part of the arch on which a plurality of shells constituting a part of an upwardly convex shell is placed, and the circular orbit is provided around the support shaft. A roof shaft support structure for a large span structure, which is capable of independently rotating and moving above and opening and closing a shell serving as a roof. 2. The roof shaft supporting structure and the roof are structurally separated and separated below the support shaft, and a space is secured between them. Roof shaft support structure in the described large span structure.