JPH0788692B2 - Large space building - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a large space building constructed by a plurality of space frames configured in an arch shape.

(Prior Art) Conventionally, in a large space building such as a gymnasium, a stadium, or a factory, a space frame (three-dimensional structure) configured by three-dimensionally and regularly installing many single materials such as steel pipes Is built by.

This type of space frame is constructed by continuously assembling basic space trusses assembled in a triangular or quadrangular shape according to the scale of the building, and is suitable for constructing a large space building.

(Problems to be solved by the invention) However, in the conventional space frame, since a large number of single materials are arranged three-dimensionally to form a three-dimensional structure, not only a large amount of single materials may be required, but also the node points Many single materials were concentrated in the parts, and the nodes became complicated, and the joining of the single materials became troublesome, and the assembly was troublesome. In addition, the static indeterminate order becomes high and structural calculation becomes extremely troublesome.

In addition, in many cases, the entire roof is constructed as a gently curved surface, so in snowy areas, the snow accumulated on the roof often remains for a long time without falling, and during heavy snowfall the weight of the roof causes the roof to fall. There was a risk of damage such as damage.

The present invention has been made to solve the above problems, and an object of the present invention is to provide a large space building that is particularly easy to assemble a frame and has a snow removing function.

(Means for Solving the Problem) A large space building according to the present invention comprises an upper chord member 8, a lower chord member 9 located below the upper chord member 8, the upper chord member 8 and the lower chord member 9. A plurality of bundles 10 which are installed between the upper chords 8 and the lower chords 9 and are arranged at predetermined intervals between them are formed in an arch shape and hung in parallel in one direction at regular intervals. The lower chord member 9 of the first space frame 6 which is formed in an arch shape with the passed first space frame 6 and is orthogonal to the first space frame 6.
And a second space frame which is joined in parallel with each other at regular intervals and the upper chord members 8 and 8 of the first space frame 6 which are adjacent to each other are installed in a substantially V-shaped section,
And a plurality of roof panels 12 constituting a roof surface.

(Example) Hereinafter, a large space building according to the present invention will be described with reference to an example. A large space building 1 includes a lower structure 2 constructed on the ground, and a lower structure 2 above the lower structure 2. It is constructed from the roof part 3 constructed in.

The lower structure 2 bulges to the side of the large space building 1 between the arch portions 4 and 4 respectively constructed on the wife side of the large space building 1 and the column bases of the opposing arch portions 4 and 4. It is constructed by including horizontal arch portions 5, 5 constructed as described above and tie beams 5a constructed horizontally between the column bases of the arch portion 4 (see FIG. 11).

The arch portion 4, the horizontal arch portion 5 and the tie beam 5a are all constructed by prestressed concrete and firmly supported on the ground through the foundation (see FIGS. 12 and 13).

The roof part 3 includes a plurality of first space frames 6 which are laid in parallel between the horizontal arch parts 5 and 5, and a plurality of second space frames 7 which are laid in parallel between the arch parts 4 and 4. The first space frame 6 is bridged at predetermined intervals in the longitudinal direction of the horizontal arch portion 5, the second space frame 7 is bridged at predetermined intervals in the longitudinal direction of the arch portion 4, and The first space frame 6 and the second space frame 7 are joined to each other in a grid pattern (see FIG. 1).

The first space frame 6 includes an upper chord member 8 formed in an arch shape, a lower chord member 9 formed in an arch shape and installed below the upper chord member 8, and between the upper chord member 8 and the lower chord member 9. It is provided with a plurality of bundle members 10 which are erected at predetermined intervals and which connect the upper chord member 8 and the lower chord member 9. Further, the first space frame 6 is configured such that the beam formation in the central portion is the largest and the beam formation is gradually reduced in both end directions. Therefore, the bundle 10 installed in the central portion of the first space frame 6 is formed to be the longest, and the bundles 10 in both end directions are formed to be gradually shorter.

The upper chord member 8, the lower chord member 9, and the bundle member 10 of the first space frame 6 are all made of steel pipes having a circular cross section. Also, the diameter of the lower chord member 9 is the largest, the upper chord member 8 and the bundle member
The diameter is gradually reduced in the order of 10.

The upper chord member 8 and the lower chord member 9 are the node portions 8a, 9a installed at the joint with the second space frame 7 and the contact portions 8a,
8a and 9a, 9a and the intermediate portion 8b, 9b respectively installed by dividing, it is configured, joint flanges 8c, 9c respectively at both ends of this node portion 8a, 9a and intermediate portion 8b, 9b Has been formed. Furthermore, the node portion 8a and the bundle 10 and the node portion 9a and the bundle 10 are rigidly joined.

The joint flanges 8c and the joint flanges 9c are connected to each other by a plurality of connecting bolts to connect the node portions 8a, 9a and the intermediate portions 8b, 9b, respectively, to form the first space frame 6, Both ends of the one space frame 6 are joined to the horizontal arch portion 5 in a pin-joined state (see FIGS. 3 and 4).

The second space frame 7 is installed between the beam portion 7a horizontally projecting on both sides of the node portion 9a of the lower chord member 9 and the tip portion of the beam portion 7a and the node portion 8a of the upper chord member 8. Slanted timber
7c and. A joint flange 7b is formed at the tip of the beam portion 7a. Then, the joint flanges 7b are connected to each other by a plurality of connecting bolts to connect the beam portions.
7a are connected to each other to form a second space frame 7 that is continuous in an arch shape in a direction orthogonal to the first space frame 6, and both end legs of the second space frame 7 are joined to the arch portion 4 in a pin-joined state. Has been done.

It should be noted that warm air is passed through the upper chord member 8 and the second space frame 7 of the first space frame 6 to warm the upper chord member 8 and the second space frame 7, and a part of them is blown out, for example, in the upper chord member 8. By blowing out indoors from 8d (see FIG. 9), dew condensation that occurs inside the roof panel 12 described later is prevented, and the snow accumulated on the roof panel 12 is quickly melted ( (See FIG. 9).

Further, since the first space frame 6 and the second space frame 7 are all divided into a predetermined shape and made into parts, standardization of members, uniformity of quality, improvement of accuracy, and easy construction Are being promoted.

The roof panel 12 is installed between the first space frames 6 and 6 adjacent to each other with the left and right edge portions thereof fixed to the upper chord member 8 of the first space frame 6, and the central portion is pressed to hold the cable.
By pressing it from above by 13, it is formed in a substantially V-shaped cross section. Further, the roof panel 12 is formed of a fabric having excellent noncombustibility and weather resistance such as Teflon coating glass fiber fabric.

Both ends of the roof panel 12 are fixed to the upper chord member 8 by the structure shown in FIG. As detailed below,
Brackets 11 are provided on the upper end portion of the upper chord member 8 so as to project continuously in the longitudinal direction of the upper chord member 8 or at regular intervals, and mounting bolts 14 are fixed to the bracket 11 by fixing nuts 15 so as to project horizontally. Has been done.

The mounting bolts 14 are mounted at regular intervals in the longitudinal direction of the upper chord member 8, angle members 16 are mounted on both sides of the mounting bolt 14, and a clamp metal fitting 17 is mounted on the upper end of the angle member 16 with a mounting bolt 18 and a fixing nut. Installed by 19 and.

The clamp metal part 17 is composed of two parts, a clamp upper part 17a and a clamp lower part 17b, each of which is formed continuously in the longitudinal direction of the upper chord member 8.

Further, recesses 17c are formed continuously in the longitudinal direction of the clamp metal member 17 on the opposing surface portions of the clamp upper side portion 17a and the clamp lower side portion 17b.

The left and right edges of the roof panel 12 are provided with a rubber core 12a having a substantially circular cross section formed continuously at the edge of the roof panel 12 in the longitudinal direction of the roof panel 12, and a recess 17c, 1 of the clamp hardware 17.
It is fixed to the left and right upper chord members 8 by sandwiching them between 7c and tightening the fixing nut 19 of the mounting bolt 18 to tighten the clamp upper part 17a and the clamp lower part 17b.

In the figure, reference numeral 20 is the upper side of the clamp of the clamp hardware 17.
17a and clamp lower part 17b are interposed, and clamp upper part
A rubber pad that improves the familiarity between 17a and the lower clamp part 17b, and securely and firmly holds the rubber core 12a of the roof panel 12, and 21 is projected on the upper clamp part 17a and formed on the lower clamp part 17b. The clamp pin engages with the small hole 22 formed and facilitates the alignment between the clamp upper end 17a and the clamp lower end 17b.

Further, reference numeral 23 is a tie plate that is attached between the adjacent clamp hardware 17, 17 and connects the left and right roof panels 12 via the clamp hardware 17 to continuously transmit the stress (tension) between the roof panels 12, 12. is there.

The presser cable 13 is stretched over the entire length of the space frame 6 at approximately the center of the roof panel 12, and both ends thereof are fixed to the horizontal arches 5, 5. This presser cable 13
Thus, a constant tension is introduced into the roof panel 12, and each roof panel 12 is adhered to each other and has a stable and substantially V-shaped smooth cross-sectional shape. As a result, the first
Since a snow groove having a substantially V-shaped cross section is formed over the entire length of the space frame 6 between the space frames 6 and 6,
The snow on the roof does not stay on the spot for a long time and quickly slips off.

Although not shown in the drawing, air conditioning equipment, lighting equipment, audio equipment, fire protection equipment, and the like are provided.

(Effect of the Invention) The large space building according to the present invention has an upper chord member 8, a lower chord member 9 located below the upper chord member 8, and a predetermined interval between the upper chord member 8 and the lower chord member 9. A plurality of first members that are installed at intervals and are configured in an arch shape with a plurality of bundle members 10 that connect the upper chord member 8 and the lower chord member 9 and are bridged in parallel in one direction. A plurality of space frames 6 formed in an arch shape and extending in a direction orthogonal to the first space frame 6 and being bridged in parallel while being joined to the lower chord members 9 of the first space frame 6. Since the skeleton (roof structure) is constructed with two space frames, it is possible to significantly reduce the number of members (single material) compared to the conventional roof structure of large space buildings, and the joint part Since the number of members that concentrate is reduced, the structure of the node (joint) can be simplified. , Such an effect and in particular framework assembly operation and structure calculation is simplified.

Further, since the plurality of roof panels 12 constituting the roof surface are installed between the upper chord members 8 and 8 of the adjacent first space frames 6 in a substantially V-shaped cross-section, the snow accumulated on the roof It also has the effect of preventing damage such as damage due to heavy snowfall.

[Brief description of drawings]

1 to 3 show an embodiment of a large space building according to the present invention, FIG. 1 is a perspective view of the large space building, and FIG. 2 is a partial side view of the first space frame, 3 and 4
The figure shows a side view and a plan view of the first space frame column base, FIG. 5 and FIG. 6 show a partial perspective view and an exploded perspective view of the first and second space frames, and FIGS. 7 and 8 show a roof. Is a partial perspective view, FIG. 9 is a cross-sectional view of an upper chord member showing a roof panel mounted state, FIG. 10 is a detailed view of part A in FIG. 9, and FIGS. 11 and 12 are perspective views of a frame body and A side view and FIG. 13 are partial perspective views of the frame part. 1 ... Large space building, 2 ... Lower structure, 3 ... Roof part, 4 ... Arch part, 5 ... Horizontal arch part, 6 ... First space frame, 7 ... Second space frame, 8 ...
… Upper chord, 9 …… Lower chord, 10 …… Bundle, 11 …… Bracket, 12 …… Roof panel, 13 …… Presser cable, 14 …… Mounting bolt, 15 …… Fixing nut, 16 …… Angle member , 17
…… Clamp hardware, 18 …… Mounting bolt, 19 …… Fixing nut, 20 …… Rubber pad, 21 …… Clamp pin, 22 ……
Small hole, 23 ... tie plate.

 ─────────────────────────────────────────────────── --- Continuation of the front page (72) Inventor Taiji Kurokawa 1-2-7 Moto-Akasaka, Minato-ku, Tokyo Within Kashima Construction Co., Ltd. (72) Inventor Yukio Sano 1-2-7 Moto-Akasaka, Minato-ku, Tokyo No. Kashima Construction Co., Ltd. (72) Inventor Masaru Ozaki 1-2-7 Moto Akasaka, Minato-ku, Tokyo Within Kashima Construction Co., Ltd. (72) Inventor Takita ▲ Yoshi ▼ 1 Fukkamachi, Sendai City, Miyagi Prefecture −27 Kashima Construction Co., Ltd. Sendai Branch (72) Inventor Mitsuo Wada 1-27 Fukkamachi, Sendai City, Miyagi Prefecture Kashima Construction Co., Ltd. Sendai Branch

Claims (1)

[Claims] 1. An upper chord member 8, a lower chord member 9 located below the upper chord member 8, and the upper chord member 8 which are installed at predetermined intervals between the upper chord member 8 and the lower chord member 8. A plurality of bundles 10 for connecting the lower chord members 9 are formed in an arch shape, and a first space frame 6 is arranged in parallel in one direction at regular intervals, and is formed in an arch shape. And a second space frame which is joined to the lower chord member 9 of the first space frame 6 in a direction orthogonal to the first space frame 6 and is bridged in parallel at regular intervals, and the adjacent second space frame. Upper chord material of one space frame 6,8,8
A large space building characterized in that it is provided with a plurality of roof panels 12 that form a roof surface and are each installed between them in a V-shaped cross section.