JPH09235816A - Roof construction of large-sized building structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a roof construction capable of adjusting the extent of any lighting from the outside and to conform to an airspace conformed to a variety of multipurpose application functions besides being simple in structure and inexpensive in cost and, what is more, shorter in a construction period. SOLUTION: This is a roof construction of a large-sized building structure 1 having a large space inside, and it is provided with a roof 4 covering an upper part of this large space and a movable ceiling 30 installed beneath this roof 4. In addition, this ceiling 30 is equipped with a supporting member 15 installed at the underside of this roof 4, a sheet member supported by this supporting member 15 free of delivery so as to cover the upper part of the space and free of storage in a part beneath the roof and a driving means 35 opening or closing this sheet member after delivery and storage, respectively.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a roof structure for a structure having a large space.

[0002]

2. Description of the Related Art In fields such as bicycle races, baseball and soccer, there is a demand that natural light should be taken during a competition, while a roof should be installed in the rain. Conventionally, in order to satisfy these two requirements, a solution means such as installing a roof only on the upper part of the seats of a spectator or installing an openable roof on the entire structure has been taken.

[0003]

[Problems to be Solved by the Invention] The above-mentioned roof, which is installed only in the upper part of the spectator's seat, and the openable and closable roof, which is installed in the entire structure, are used in the former case. It is possible to illuminate the inside, and even if it rains, the audience will not get wet. However, in recent years, due to cost problems and the like, it has been considered to use the stadium as a concert hall, an event venue, etc. at the time of non-competition holding, and improvement has been demanded.

In the latter case, natural light can be taken during the competition, and competitions and events can be held regardless of the weather such as rain. However, in order to open and close the roof, the structurally strict strength condition of opening and closing the roof in a pillarless large space must be satisfied, and the roof structure becomes large-scale. Therefore, there is a problem that the cost is very high and the construction period is long.

In view of the above circumstances, the present invention is capable of adjusting the lighting and blocking of external light according to the situation, has a simple structure, is inexpensive, and is capable of shortening the construction period. It is intended to provide a roof structure for a structure.

[0006]

In order to solve the above problems, the following structure is adopted in the roof structure of the large-scale building structure of the present invention.

A roof structure for a large-scale building structure according to claim 1, wherein the roof structure is for a large-scale building structure having a large space inside, and a roof covering the upper side of the large space,
An opening / closing ceiling provided below the roof is provided, and the opening / closing ceiling is extended to the support member provided on the lower side of the roof so as to cover the space above. It is characterized in that it is provided with a seat member which is freely and storably supported in a part of the lower part of the roof, and a drive means for feeding the seat member, storing it, and opening and closing the seat member. In the roof structure of this large-scale building structure, the seat member is supported so as to be able to be extended so as to cover the upper part of the internal space and to be stored in a part of the lower part of the roof. By expanding and contracting,
The ceiling opens and closes without affecting others.

A roof structure for a large-scale building structure according to claim 2, wherein the roof comprises a plurality of tension beams arranged in parallel and a roof plate provided between the upper surfaces of the tension beams. The strain cord of the above constitutes the supporting member. In the roof structure of this large-scale building structure, the sheet member expands and contracts along the tension line of the string beam.

A roof structure for a large-scale building structure according to claim 3 is characterized in that the roof plate is made of a transparent or translucent material. In the roof structure of this large-scale building structure, sunlight can pass through the roof plate, so sunlight is introduced into the venue under the ceiling when the seat members are stored, and when the seat members are extended. Sunlight is blocked inside the venue under the ceiling.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a diagram showing an embodiment of the present invention, and reference numeral 1 is a covered bicycle racetrack (large-scale building structure) in consideration of multipurpose use. Bicycle racetrack 1
There is a fix 2 for competitions, etc., around the ground floor,
The structure 3 including the spectator stands 3A and 3B on the second floor is constructed over the entire circumference. Then, on the upper part of the structure 3, a plurality of pillars 3C are erected upright.
The roof structure 4 is provided on C.

The roof structure 4 comprises a string beam 10 and a roof plate member 2.
0, an openable ceiling 30 is roughly configured.

The tension string beam 10 is composed of an upper string beam member 11 having a truss structure, support bundle members 12, 13, 14 and a tension cord 15. The upper chord beam member 11 is composed of beam members 16 and 17 joined at the central portion in the length direction, and ends 16a and 17a are inclined downward with the central portion in the length direction as an apex. It is configured. A supporting bundle member 12 extending downward is provided in a substantially V-shape in the central portion of the tension beam 10 near the joint between the beam members 16 and 17. In addition, the support bundle 1 is provided at the intermediate portion between the beam members 16 and 17.
3 and 14 are installed so as to extend downward. Both ends 16a and 17a of the beam members 16 and 17 and the support bundle 1
A tension cable 15 is stretched between the lower ends of the cables 2, 13, and 14.

A plurality of stretched string beams 10 are arranged in parallel and provided on the upper surface of the stretched string beams 10, 10 ...
Has been erected. The roof plate material 20 is a roof plate central portion 21.
Is a translucent polycarbonate folded plate, and the roof plate edge 2
2 and 23 are made into a round fold plate double pack.

An opening / closing ceiling 30 is provided below the tension beam 10. Therefore, the roof space 7 is formed between the roof plate material 20 and the opening / closing ceiling 30. The open / close ceiling 30 is composed of movable ceilings 31 and 32 installed below the central part 21 of the roof plate, and fixed ceilings 33 and 34 installed below the edge parts 22 and 23 of the roof plate. The openable ceiling 30 has a structure that is substantially symmetrical with respect to the center line formed by connecting the lower ends of the support bundles 12 in plan view.

The fixed ceiling 33 has a lower end of the support bundle 13 and
It is provided between the end portion 16a of the beam member 16. Further, the fixed ceiling 34 includes the lower end of the support bundle 14 and the beam member 1.
7 is provided between the end portion 17a and the end portion 17a. Fixed ceiling 33
In the space between the roof plate edge 22 and the roof plate edge portion 22, and in the space between the fixed ceiling 34 and the roof plate edge portion 23, the winding device 35, the air-conditioning duct 5, and a facility environment adjusting facility such as an electric system (not shown), A drainage path of dew condensation water, which is not shown, is arranged. The lighting equipment 6 and a speaker (not shown) are installed under the fixed ceilings 33 and 34 and the support bundle 12 as needed.

The movable ceiling 31 is composed of a sheet member 36 shown in FIGS. 2 and 3, a sheet member holding mechanism 40, and a winding device 35 shown in FIG. The movable ceiling 31 will be described below with respect to the left half portion shown in FIGS. 1 and 3.

The sheet member 36 is the sheet member holding mechanism 4
It is supported by the tension cord 15 through 0. The seat member holding mechanism 40 is composed of a traveling body 43 in which traveling wheels 42 are provided on the moving body 41, and a receiving member 45 suspended from the traveling body 43 via columns 44.

In this case, a plurality of traveling bodies 43 are arranged on each of the tension cords 15, and the receiving member 45 is supported by the plurality of traveling bodies 43 provided on each of the tension cords 15 via the columns 44. There is. A plurality of receiving members 45 suspended from the plurality of traveling bodies 43 and the columns 44 are provided at predetermined intervals in the extending direction of the tension cord 15. Under this mechanism, the running wheels 42 roll on the tension cord 15 so that the receiving member 45 moves in the direction in which the tension cord 15 extends. A sheet member 36 is hung over the upper part between the receiving members 45, 45 .... The fixed ceiling 33 side of the sheet member 36 is connected to a winding device 35 installed above the fixed ceiling 33. Further, the end portion on the center side of the sheet member 36 is fixed to the receiving member 45 located near the supporting bundle 12. Seat member 36
Is a material having heat insulating properties, light shielding properties, predetermined sound absorbing properties, and flexibility.

The traveling body 4 provided on the same tension cord 15
A cable 46 for opening and closing is connected between the columns 44 of 3,
The opening / closing cable 46 contacts a pulley 47 installed in the lower part of the support bundle 12, and the opening / closing control device (not shown) installed in the space above the fixed ceilings 33, 34 located at both ends of the tension cord 15. It is stretched between them. The sheet member holding mechanism 40, the winding device 35, the opening / closing cable 46,
The opening / closing control device (not shown) constitutes a driving means for the seat member 36.

The movable ceiling 31 has been described above with respect to the left half of FIGS. 1 and 3, but the right half has a structure symmetrical to the left half, and similarly, the seat member 36 and the seat member holding mechanism 40. Etc. are provided.

In the roof structure of a large-scale building structure having the above-mentioned structure, for example, at the time of holding a bicycle race or the like, the opening / closing control device is activated to connect the opening / closing cable 46 of the movable ceiling 31 to the fixed ceiling 33 side. In the direction of.
As a result, the sheet member holding mechanisms 40, ...
It is stored in the upper space. At the same time, by winding the sheet member 36 around the winding device 35, the movable ceiling 31 is housed in the upper space of the fixed ceiling 33, and the ceiling back space 7 is opened. When the movable ceiling 32 is opened, the same operation as described above is performed, and the movable ceiling 32 is stored in the upper space of the fixed ceiling 34. As a result, the movable ceilings 31 and 32 below the roof structure 4 are housed in the fix 2 so that the sun rays that have passed through the central portion 21 of the roof plate can reach.

When a concert or an event is held, the movable ceilings 31 and 32 are extended by performing the operation reverse to the above. In that case, since the sheet member 36 has a light-shielding property, the arrival of natural light inside the venue is blocked. In that case, the lighting in the venue dims the lighting fixture 6. Then, since the upper space of the retractable ceiling 30 is separated from the space inside the venue, the sheet member 36 blocks the movement of air between the venue space and the space above the ceiling 7.

As described above, according to the embodiment of the present invention, since the roof structure 4 has the tension beam structure, it is possible to withstand a large roof load. Therefore, even in a heavy snowfall area, snow can be constantly retained on the roof without worrying about the strength, and therefore the cost of snow countermeasures such as snow removal can be reduced. Also, the slide construction method, which is similar to the conventional stadium with a string beam structure, can be adopted, so that the influence on the facility operation of the construction can be reduced. The weight of the openable / closable ceiling 30 is the movable ceilings 31, 32, the fixed ceilings 33, 34, the winding device 35, the sheet member 36, the sheet member holding mechanism 4.
0, the opening / closing cable 46, and the weight of the opening / closing control device are sufficient, and a lightweight structure can be achieved.

Since the movable ceiling 20 has a structure that can be opened and closed, it can satisfy the performance equivalent to that of a simple openable roof. That is, by opening the movable ceilings 31 and 32 at the time of holding a bicycle race or the like, it is possible to illuminate the outside with natural light. In addition, the movable ceiling 3
By blocking 1 and 32, the sun rays that reach the venue can be blocked.

When the movable ceilings 31, 32 are opened, the movable ceilings 31, 32 are housed inside the space above the fixed ceilings 33, 34. Moreover, since the air-conditioning duct 5 that is indispensable for stadiums, etc. is also installed inside the space above the fixed ceilings 31 and 32, the only thing that blocks the spectator's view is the tension cords 15, which, in combination with the natural light that is lit, is sufficient. It can produce a feeling of openness. Moreover, since it is possible to introduce natural light into the venue, it is possible to reduce lighting costs.

When the movable ceilings 31 and 32 are closed, the ceiling space 7 is interposed between the roof plate material 20 and the openable / closable ceiling 30 to reduce the volume of the venue space. Therefore, the volume to be temperature-controlled is reduced, and the air conditioning cost can be suppressed. At the same time, by the sheet member 36 having heat insulation,
By cutting off the space between the venue and the space above the opening / closing ceiling 30 in which the air heated in the summer and the cold air in the winter accumulate, the air conditioning cost can be suppressed.

Further, since the roof structure 4 has a double structure of the roof plate material 10 and the retractable ceiling 30, the sound volume transmitted to the upper space of the retractable ceiling 30 is shielded, and the sound leaking to the outside of the venue is prevented. Can be reduced. At the same time, the acoustic characteristics in the venue can be changed by extending the sheet member 36.

By adjusting the extension state of the sheet member 36, the lighting condition, acoustic characteristics, etc. in the venue can be adjusted.
It can change continuously. Further, it is possible to obtain the effect on the production such that the lighting in the venue is turned off at night and the movable ceilings 31 and 32 are opened at the same time when the concert or the like is started.

[0029]

According to the roof structure of a large-scale building structure of the present invention, by opening and closing the ceiling, it is possible to adjust the lighting and blocking of external light according to the situation. Since the structure can be simplified, the cost can be suppressed and the construction period can be shortened.

[Brief description of drawings]

FIG. 1 is a sectional view of a covered bicycle racetrack for explaining an embodiment of the present invention.

FIG. 2 is an enlarged perspective view of a main part of the retractable ceiling shown in FIG.

FIG. 3 is an enlarged side view of the main part of the retractable ceiling shown in FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Bicycle racetrack with a roof (large-scale building structure) 4 ... Roof structure (roof) 10 ... Stranded beam 15 ... Tension rope (support member) 20 ... Roof plate material 30 ... Retractable ceiling 35 ... Winding device (driving means) 36 ... Sheet member 40 ... Sheet member support mechanism (driving means) 46 ... Open / close cable (driving means)

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Office reference number FI Technical display location E04B 7/14 E04H 3/14 C E04D 3/06 E04B 5/57 Q E04H 3/14 5/62 G

Claims (3)

[Claims] 1. A roof structure for a large-scale building structure having a large space therein, the roof covering the upper part of the large space,
An opening / closing ceiling provided below the roof is provided, and the opening / closing ceiling is extended to the support member provided on the lower side of the roof so as to cover the space above. A large-scale building structure comprising a seat member that is freely and storably supported in a part of the lower part of the roof, and drive means that unwinds the seat member, stores the seat member, and opens and closes the seat member. Roof structure of things. 2. The roof structure according to claim 1, wherein the roof includes a plurality of tension beams arranged in parallel and a roof plate provided between upper surfaces of the tension beams, and the tension ropes of the tension beams are provided. A roof structure for a large-scale building structure, characterized in that the support member is formed. 3. The roof structure according to claim 2, wherein the roof plate is made of a transparent or translucent material.