JP3187486B2 - Suspended roof structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a suspended roof structure generally referred to as a wheel type suspended roof, and more specifically, to a compression ring disposed on an opening edge of a circular wall in a plan view. When,
The present invention relates to a suspended roof structure in which an annular tension ring suspended from the compression ring is used as a roof structural material.

[0002]

2. Description of the Related Art FIGS. 8 and 9 show a general structure of the above-mentioned hanging roof structure. The roof structural material of the suspended roof includes an annular compression ring 2 having the same diameter as the wall 1 of the building formed in a circular shape in plan view, and an annular tension member suspended and arranged at the upper center of the wall. Ring 3
And an upper chord member 4 and a lower chord member 5 radially arranged between the tension ring 2 and the compression ring 2, and a roof membrane material or a metal plate 6 forming a roof surface 8.

[0003] The compression ring 2 is disposed on an opening peripheral portion 7 of a wall 1 of a building having a circular shape in plan view. Then, the tension ring 3 tensions the upper chord member 4 and the lower chord member 5 radially arranged between the compression ring 2 and the tension ring 3 so that the tension level is substantially the same as the compression ring 2 at the horizontal level position.
And it is lifted and fixed to the upper central part inside the wall body 1. Then, a roof surface 8 is formed by stretching a roof membrane material or a metal plate 6 on the plurality of upper chord members 4 arranged radially so as to cover the inside of the wall body, and a suspended roof is constructed. .

Here, a plurality of long steel members are used as the upper chord member 4 and are arranged radially, and the lower chord member 5 is a plurality of cable wires arranged in tension. It is used.

[0005]

However, in the above-mentioned suspended roof structure, after the roof structure is erected above the wall 1 by the compression ring 2, the tension ring 3, the upper chord member 4 and the lower chord member 5, The roof membrane material 6 is stretched and the roof surface 8
Therefore, a lot of time and labor is required for the construction of the suspended roof, and there is a problem in terms of construction efficiency and construction cost.

In addition, since a long steel material is used for the upper chord member 4, the weight of the entire roof portion increases, and a lot of cost is required to obtain the structural stability of the suspended roof. It was the current situation.

[0007] The present invention has been made in view of the above circumstances, to reduce the number of roof structural materials for constructing a suspended roof,
Accordingly, an object of the present invention is to provide a suspended roof structure capable of reducing construction efficiency and construction cost.

[0008]

In order to achieve the above object, a suspension roof structure according to the present invention comprises: a compression ring disposed on a peripheral portion of an opening of a wall formed in a circular shape in plan view; A tension portion having an annular tension ring spaced apart in the vertical direction, and a plurality of tension members radially stretched between the tension ring below the tension portion and the compression ring located above the opening of the wall. Cable wires, and a plurality of metal plates radially stretched between the upper tension ring and the compression ring, wherein the tension portion is located between the upper and lower tension rings and the compression ring. By tensioning all the cable wires and metal plates that have been stretched,
The plurality of metal plates suspended and fixed in the upper part of the opening of the wall and stretched in a tension state are used as a roof structural material.
It is characterized in that it functions as a roofing material.

According to the suspension roof structure of the present invention, the plurality of metal plates radially stretched between the upper tension ring and the compression ring are joined to the side edges of adjacent metal plates. And forming a roof surface.

According to the third aspect of the present invention, an annular ring beam is provided on a plurality of cable wires radially stretched between a lower tension ring and a compression ring. Between the ring beam and the roof surface, a bundle material for pushing the roof surface upward is provided in a vertical direction.

[0011]

The hanging roof structure according to claim 1 of the present invention.
The plurality of metal plates stretched under tension
Roofing material that functions as a structural material and is a finishing material
The number of members of the roof structural material
Decrease. In addition, lightweight metal plates are used as roof structural materials.
Use a large suspended roof structure
The overall weight can be reduced sufficiently.

[0012] In the suspension roof structure according to the second aspect ,
Radially stretched between the upper tension and compression rings
Multiple metal plates, the side edges of adjacent metal plates
Since they are joined to form a roof surface, for example, cables
Multiple bundles are cut vertically from a ring beam placed on a wire
And push up the lower side of the metal plate,
It is possible to easily form an upwardly curved roof surface.
You.

Further, in the suspension roof structure according to the third aspect ,
Radially stretched between the lower tension and compression rings
Annular ring beams on multiple cable wires
Between the ring beam and the roof surface.
The bundle material to be pushed up is arranged in the vertical direction.
The roof surface curved upward can be easily formed
become.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a suspended roof structure according to the present invention will be described below with reference to FIGS. 8 and 9
The members having the same configuration as the structure shown in FIG.

The suspension roof structure of the present embodiment has a compression ring 1
0, a tension portion 13 in which two tension rings 11 and 12 are spaced apart in the vertical direction, and a lower tension ring 1
A plurality of cable wires 14 stretched radially between the compression ring 2 and the compression ring 10 and a plurality of wires stretched radially between the upper tension ring 11 and the compression ring 10 When the metal plate 15 and roof component
In both cases, a plurality of metal plates 15 stretched in tension are
It also functions as a roof structural material .

In FIG . 2 , reference numeral 1 denotes a building wall formed in a circular shape in plan view, and the peripheral edge of the opening (ring mounting surface ) of the wall 1 is formed flat. The distance T between the inner walls of the wall body 1 is set to about 100 m, and the internal space is used as an indoor stadium facility or the like. Then, on the ring mounting surface 2 of the wall 1,
A compression ring 10 is provided.

The compression ring 10 is formed in an annular shape having a diameter of about 100 m. One end of a cable wire 14 and one end of a metal plate 15 are stretched in the circumferential direction. The tension portion 13 is lifted and fixed at the same horizontal level position as the compression ring 10 and at a position where the center point coincides with the center point of the compression ring 10 in plan view.

The tension portion 13 has a truss structure 18 formed of a plurality of uprights 16 and diagonal members 17 in a cylindrical shape, and two tension rings 11 and 12 connected to upper and lower ends of the truss structure 18. The structure is made. The two tension rings 11 and 12 are formed in an annular shape with a diameter of about 20 m. A plurality of cable wires 14 and a plurality of metal plates 15 are radially stretched and stretched between these two tension rings and the compression ring 10, so that the tension portion 13 becomes a wall body. 1 and is suspended and fixed above the opening.

The cable wire 14 is a steel wire bundle of a plurality of thin steel wires bundled, and is a member having a tensile force capable of sufficiently withstanding the distributed load of the entire roof's own weight. A plurality of cable wires 14 are radially extended between the lower tension ring 12 and the compression ring 10 in a state of extending in the radial direction.

The metal plate 15 is made of a high-tensile, corrosion-resistant, lightweight stainless steel or the like. As shown in FIG. 3, the metal plate 15 has a thickness of about 1.6 mm and a width of the upper side 15a. 0.
It is formed in a long trapezoid having a width of about 4 m and a width of the base 15 b of about 2 m. A plurality of metal plates 15 are radially stretched between the upper tension ring 11 and the compression ring 10 so that the bottom 15a side is stretched over the compression ring 10 and extended in the radial direction. I have.

Then, by tensioning all the cable wires 14 and the metal plate 15, the tension portion 1
3 is lifted and fixed to substantially the same horizontal level as the compression ring 10. Then, the plurality of metal plates 15 radially tensioned are joined at the side edges of the adjacent metal plates 15, 15.

The joining of the side edges of the adjacent metal plates 15, 15 is performed as shown in FIGS. That is, the metal plates 1 located on the upper tension ring 11 side
As shown in FIG. 4, the side edges of 5, 15 are bent up by about 3 cm to form bent pieces 15c. Then, the bent pieces 15c, 15c abut each other with the first bonding member 20 formed in an L-shaped cross section interposed therebetween, and these bent pieces 15c, 15c and the first bonding member are formed into a U-shaped cross section. By being sandwiched by the second joining member 21 in the shape of a circle and the second joining member 21 and the bent pieces 15c, 15c being joined by fillet welding or the like (portion A in FIG. 4), the adjacent arrangement is performed. The metal plates are joined together.

As shown in FIG. 5, the metal plates 15 are bent upward at the side edges of the metal plates 15 on the wall 1 side, as shown in FIG. Play 22 is formed. Then, similarly to the structure shown in FIG. 4, the bent pieces 15 c, 15 c and the first joining member 20
Are sandwiched by a joining member 21 having a U-shaped cross section and joined by welding, whereby the metal plates 15 and 15 are joined.

As shown in FIG. 6, a plurality of annular wires having different diameters are provided on the radially stretched cable wires 14 in a range where the diameter is larger than the tension ring and smaller than the compression ring. A ring beam 23 is provided.

The metal plate 1 is located between the ring beam 23 disposed on the cable wire 14 and the metal plate 15.
A plurality of bundles 24 are arranged to extend in the vertical direction in order to push up the metal sheet 5 from the lower surface side and make the metal plate 15 curved upward.

These bundles 24 are made of a steel frame material. The length of the bundle 24 disposed on the wall 1 side is short, and the length of the bundle 24 disposed on the tension portion 13 side is long. Have been. Then, as shown in FIG. 7, the upper end of the bundle 24 is connected to a hanging plate 25 which is formed by hanging from the lower surface of the metal plate 15. The lower end of the bundle 24 is connected to the ring beam 23 and the hinge 26 so that the vertically downward load received from the metal plate 15 by the bundle 24 can be effectively transmitted in the circumferential direction.

Thus, the roof surface 27 is formed while the plurality of metal plates 15 are curved upward by the plurality of bundles 24 (see FIG. 2).

Next, a procedure for constructing the suspended roof structure having the above configuration will be described below. First, the above-mentioned roof structural members 10, 13, 14, 15 are carried into the site. At this time, the metal plate 15 is carried in a state of being wound in a coil shape, and is restored to a flat and long trapezoidal shape at the site.

Next, an annular compression ring 10 is provided on the ring mounting surface 7 of the wall 1 formed in a circular shape in plan view. Next, the tension portion 13 composed of the cylindrical truss structure 18 and the two tension rings 11 and 12 is moved to the same horizontal level position as the compression ring 10 and to the wall 1.
At the center of the opening (where the center points of the tension rings 11 and 12 coincide with the center point of the compression ring 10 in plan view)
It is arranged using a erection body (not shown).

Next, a plurality of cable wires 14 are radiated between the lower tension ring 12 and the compression ring 10.
Is installed. Further, a plurality of metal plates 15 are arranged between the upper tension ring 11 and the compression ring 10. Then, by tensioning all the cable wires 14 and the metal plate 15 by applying the same tensile force toward the wall 1, the tension portion 13 is fixed in a suspended state. Here, a plurality of radially tensioned metal plates 15 are provided.
Is that the adjacent metal plates 15 are bent up by about 3 cm at the side edges, sandwiched between the second joining members 21 with the first joining members 20 interposed therebetween, and bent with the second joining members 21. 1
5c and 15c are joined by fillet welding. Here, play bends 22 are formed at the side edges of the metal plates 15 joined together on the wall 1 side.

Next, a plurality of annular ring beams 23 having different diameters are arranged on the radially stretched cable wires 14. Then, a plurality of bundles 24 are vertically arranged between the ring beam 23 and the metal plate 15, and the metal plate 15 is pushed up from the lower surface side to be curved upward. As a result, the plurality of metal plates 15 are curved upward by the plurality of bundles 23, and the adjacent metal plates 15, 15 are joined to form the roof surface 27.

As can be easily understood from the above description, in the suspension roof structure of the present embodiment, the ring-shaped compression ring 10 disposed on the upper portion of the wall 1 formed in a circular shape in plan view is provided. A tension portion 13 having upper and lower tension rings 11 and 12 suspended and arranged at the center of the upper portion of the wall 1 and a tension member radially tensioned between the compression ring 10 and the lower tension ring 12. The plurality of cable wires 14 provided, the compression ring 10 and the upper tension ring 1
1 and a plurality of metal plates 15 radially stretched in a tension state are used as a roof structure material. Compared with a conventional suspended roof structure, the plurality of metal plates 15 are And a roof structural material having the same function as the roof membrane material 6,
The number of members of the roof structural material is reduced, and the construction cost can be reduced.

Also, a plurality of metal plates 15 stretched in tension between the upper tension ring 11 and the compression ring 10.
Are joined to each other, and a plurality of bundles 24 are arranged in a vertical direction from a ring beam 23 arranged on the cable wire 14 and pushed up from the lower surface side of the metal plate 15 so as to move upward. Since the curved roof surface 27 can be easily formed, the construction efficiency of the roof surface 27 can be greatly improved.

Further, since a plurality of lightweight metal plates 15 are used as a roof material, the entire roof can be sufficiently reduced in weight, and the cost for obtaining structural stability of the roof can be reduced. be able to.

[0035]

According to the present invention, as described above,
The suspended roof structure described in Item 1 is shown in (a) and (b) below.
It has excellent effects. (B) The plurality of metal plates stretched under tension are
A shop that functions as a root structure material and is a finishing material.
Since it also constitutes the root material, the roof structural material
The number of materials can be reduced, and the construction cost can be reduced. (B) Lightweight metal plates are used as roof structural materials.
Even if a large suspended roof structure is constructed, the entire roof can be reduced in weight
Can be fully possible and therefore the structure of the roof
The cost for obtaining stability can be reduced.

The suspended roof structure according to claim 2 is characterized in that
In addition to the effects of (a) and (b), the following (c) is shown.
It has excellent effects. (C) Radially between the upper tension ring and compression ring
The stretched metal plates are connected to the side edges of adjacent metal plates.
Since they are joined together to form a roof surface,
Multiple bundles from the ring beam
Arranged vertically to push up the lower side of the metal plate
The roof surface curved upward can be easily formed.
Construction efficiency of the roof surface
You.

According to a third aspect of the present invention, in the suspension roof structure,
In addition to the effects of (a) and (b), the following (d) is shown
It has excellent effects. (D) Radially between the lower tension ring and compression ring
An annular ring over multiple stretched cable wires
Arrange the beam and place the roof surface between this ring beam and the roof surface.
The bundle material that pushes up is arranged in the vertical direction.
To easily form a curved roof surface
Can improve roof construction efficiency.
it can.

[Brief description of the drawings]

FIG. 1 is a perspective view showing the entire hanging roof structure of the present invention.

FIG. 2 is a sectional view taken along line II-II of FIG.

FIG. 3 is a view showing a metal plate used in the present invention.

FIG. 4 is a diagram showing a joining state between metal plates on the tension side in the present invention.

FIG. 5 is a view showing a joining state of metal plates on the wall side in the present invention.

FIG. 6 is a sectional view taken along line VI-VI of FIG. 2;

FIG. 7 is a sectional view taken along line VII-VII of FIG. 2;

FIG. 8 is a perspective view showing a conventional suspended roof structure.

9 is a sectional view taken along line VI-VI in FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Wall 7 Opening edge 10 Compression ring 11 Upper tension ring 12 Lower tension ring 13 Tension part 14 Cable wire 15 Metal plate 23 Ring beam 24 Bundle material 27 Roof surface

Continued on the front page (72) Inventor Akira Taga 3-13 M-404, Odashimachi, Tokorozawa-shi, Saitama (72) Inventor Ikuo Tatemichi 3-27-22, Shimizu, Suginami-ku, Tokyo (56) References JP-A-1- 137035 (JP, A) JP-A-60-226943 (JP, A) JP-A-3-58507 (JP, U) JP-A-3-84320 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) E04B 1/34 E04B 7/14

Claims (3)

(57) [Claims] A compression ring disposed on an opening peripheral portion of a wall formed in a circular shape in a plan view; a tension portion in which two annular tension rings are vertically separated from each other; A plurality of cable wires radially stretched between the lower tension ring and the compression ring located at the upper portion of the opening; and a plurality of cable wires radially stretched between the upper tension ring and the compression ring. By having a plurality of metal plates stretched, the tension portion, by tensioning all the metal wires and metal plates stretched between the upper and lower tension ring and the compression ring, fixed lifting the open top of said wall, and said plurality of metal plates which are stretched under tension is, ya
A suspended roof structure that functions as a root structure material and constitutes a roof material. 2. A plurality of metal plates radially stretched between an upper tension ring and a compression ring, wherein side edges of adjacent metal plates are joined to form a roof surface. The suspended roof structure according to claim 1, wherein: 3. An annular ring beam is disposed on a plurality of cable wires radially stretched between a lower tension ring and a compression ring, and an annular ring beam is provided between the ring beam and a roof surface. The suspended roof structure according to claim 1, wherein a bundle material for pushing up the roof surface is disposed in a vertical direction.