JP2002047730A - Roof structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enhance the rigidity of the end part of a roof having a tense-grid structure and enable the mounting of a roofing material on a grid material. SOLUTION: In the roof structure constituted by taking a unit with the tense- grid structure as a base unit, both end parts of the roof in a span direction are supported by a girder in a longitudinal direction, the units are disposed consecutively in the span direction at both end parts of the roof in the longitudinal direction, and a chord member in the span direction is tightly stretched between bundle members 13 composed of the units. In the unit 11 having the deformed tense-grid structure, two pieces of the grid material 12 are intersected with each other in the shape of a cross, and a diagonal member 14 is tightly stretched between both of the upper and lower ends of the bundle member 13 installed in an intersected part and the respective ends of the two pieces of the grid material 12. The units 11 are used and coupled together by means of band members 15 disposed consecutively and stretched tightly in a lattice like manner, and the chord member for coupling the bundle members 13 together is installed in an place requiring the chord member.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a roof structure of a building, and more particularly to a roof structure based on a tense grid structure.

[0002]

2. Description of the Related Art A tense grid structure is a kind of a string truss structure, and an example of a roof structure according to the structure is shown in FIG. This is based on a unit 1 having a tense grid structure as shown in FIG.
Are continuously arranged in a staggered manner as shown in (b) to form a large-span roof as shown in (a) as a whole. (A) shows a roof having such a structure, two rows in the girder direction arranged at both ends in the span direction.
The main beam 2 and the intermediate beam 3 provided at a position adjacent to one of the beams 2 are supported and erected.
Reference numeral 4 denotes a pillar that supports the girders 2 and 3.

The unit 1, which is a basic unit, connects four grid members 5 in a rectangular frame shape, arranges a bundle member 6 in the center of the inside thereof, and connects the upper and lower ends of the bundle member 6 to the grid member 5. A diagonal member 7 is stretched between each connection point. In the present structure, the units 1 are staggered alternately in the girder row direction and the span direction, and the grid members 5 are connected in a grid shape (a grid shape in a direction along the span direction and the girder row direction). The chord members 8 (upper chord members 8a)
And the lower chord members 8b) are stretched in a grid pattern (a grid pattern oblique to the span direction and the row direction) to integrate all the units 1 to form a roof. In such a structure, the grid member 5 and the bundle member 6 are compressive members, the diagonal members 7 and the chord members 8 are tensile members, and usually employ a steel pipe as the former and a cable member such as PC steel as the latter. Has adopted.

[0004]

The roof having the tense grid structure as described above is sufficiently lightweight and has a large span, and is excellent in design. It is difficult to secure rigidity at both ends, and a roofing material is attached to the grid surface formed by the grid material 5 because the bundle material 6 is provided at the center of the grid material 5 connected in a frame shape. Therefore, effective structures that can improve these points have been sought.

[0005]

SUMMARY OF THE INVENTION In view of the above circumstances, according to the first aspect of the present invention, four grid members made of a compression material are connected in a rectangular frame shape, and a bundle material made of a compression material is provided at a central portion inside the rectangular frame. A roof structure comprising a unit having a tense grid structure in which a diagonal member made of a tensile member is stretched between upper and lower ends of the bundle and each connection point of the grid members, as a basic unit. In a state where the units are arranged in a staggered manner, the grid members are connected in a grid pattern, and string members made of a tensile material are stretched in a grid pattern between upper ends or between lower ends of both bundles of each unit. The roof is formed to form a roof, and girder beams in the girder direction supporting the roof are provided at both ends in the span direction of the roof, and the grid material is shared at both ends in the girder direction of the roof. The continuously arranged in the span direction and those formed by stretched bundle material upper inter or lower inter or the chords on both their their series of units in the span direction.

According to a second aspect of the present invention, two grid members made of a compressed material are crossed in a cross shape, and a bundle made of a compressed material is arranged at the intersection, and both upper and lower ends of the bundle and the grid material are arranged. In a roof structure composed of a unit having a deformed tense grid structure in which a diagonal member made of a tensile member is stretched between each tip of the roof and a basic unit, the units are continuously arranged vertically and horizontally to form the grid member. The roof is formed by connecting a band member made of a tensile member in a lattice shape between the ends of the grid material of each unit, while making the roof continuous in a lattice shape.

According to a third aspect of the present invention, in the roof structure according to the second aspect of the present invention, girder supporting the roof is provided at both ends in the span direction of the roof, and each of the units forming the roof is provided with a girder. A string made of a tensile material is stretched between the upper ends and / or lower ends of the bundle in the span direction of the roof.

According to a fourth aspect of the present invention, two grid members made of a compressed material are crossed in a cross shape, and a bundle made of a compressed material is arranged at the intersection, and both upper and lower ends of the bundle and the grid material In a roof structure configured with a unit having a deformed tense grid structure in which a diagonal member made of a tensile member is stretched between each tip of the roof and a basic unit, in a state where the units are staggered, the grid member is latticed. And a band member made of a tension member is stretched in a lattice shape between the tips of the grid members of each unit, and a tension member is formed between the upper end and the lower end of the bundle of each unit. The roof is formed by stretching chords in a grid pattern.

According to a fifth aspect of the present invention, in the roof structure according to the fourth aspect of the present invention, the girder supporting the roof is provided at both ends in the span direction of the roof, and at both ends of the roof in the row direction. The units are arranged continuously in the span direction, and the chord members are stretched in the span direction between upper ends and lower ends of a bundle of the series of units.

According to a sixth aspect of the present invention, in the roof structure according to any one of the first to fifth aspects, a steel pipe, an aluminum pipe,
Either fiber reinforced resin molded pipe or wood is used, and cable material, steel rod material, fiber reinforced resin molded rod material, film material, fiber reinforced resin molding are used as diagonal material, chord material, and band material, which are tensile materials. One of the panels is adopted.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention is shown in FIGS. The first embodiment is basically based on the roof having the conventional structure shown in FIG. 11, and the above-mentioned units 1 are continuously arranged at the edge of the roof for the purpose of enhancing the rigidity of the edge of the roof. It was done.

That is, the roof according to the first embodiment has the structure shown in FIG.
As in the conventional structure shown in FIG. 1, the unit 1 having the tense grid structure is arranged in a staggered manner as a basic unit, and the grid members 5 of each unit 1 are connected in a grid pattern. The chords 8 (upper chords 8a and lower chords 8b) are stretched in a grid pattern between each other to form a roof, and the roof is supported and supported by the girders 2 and the intermediate girders 3 in the girder direction. In addition, at both ends in the girder direction of the roof, the units 1 are continuously arranged in the span direction with the grid members 5 being shared, and between the upper ends of the bundle members 6 of the series of units 1 and the lower ends thereof. The chords 8 (the upper chord 8a and the lower chord 8
b) are respectively stretched.

As described above, by continuously arranging the units 1 at the ends in the girder direction, it is possible to secure the rigidity of the roof end, which was conventionally difficult to secure rigidity, and to secure the structural stability of the entire roof. As a result, a stable, large span roof frame with a tense grid structure can be realized.

The above-mentioned intermediate girder 3 can be omitted, and the roof may be supported by the girder 2 provided at least at both ends in the span direction. Further, both the upper chord 8a and the lower chord 8b may be stretched between the bundles 6 of each unit 1 as described above, but it is also possible to use only the upper chord 8a or only the lower chord 8b. In particular, it is sufficient to provide only the lower chord material 8b when the roof is curved upwardly convex, and to provide only the upper chord material 8a when the roof is curved downwardly convex.

Further, among the members constituting the roof, the grid member 5 and the bundle member 6 are compression members.
It is preferable to use a steel pipe as the material, but if a desired compressive strength can be obtained, for example, an aluminum pipe or a fiber reinforced resin molded pipe (CFRP) may be used as another compressed material.
Tubes, wood, etc. can also be adopted, in which case the weight can be further reduced. Also, diagonal material 7 and string material 8
Is a tensile material, a cable material such as a PC steel wire or a PC steel stranded wire can be suitably used. However, any other tensile material such as a steel rod (particularly P
It is also possible to use a C-steel rod) or a fiber-reinforced resin molded rod (CFRP rod), etc. Further, instead of such a wire or a rod, a membrane material or a fiber-reinforced resin molded panel (CFRP panel) is also employed. It is possible, and when using such a film material or panel, it is also possible to use it as a roof material.

Next, FIGS. 3 and 4 show a second embodiment of the present invention. In the second embodiment, a unit 11 having a modified tense grid structure as shown in FIG. 3C is used as a basic unit. The unit 11 intersects two grid members 12 in a cross shape, arranges a bundle member 13 at the intersection, and places a diagonal member 14 between upper and lower ends of the bundle member 13 and each end of the grid member 12. It is made by stretching. In the second embodiment, the units 11 are continuously arranged vertically and horizontally so that the grid members 12 are arranged in a grid pattern (a grid pattern oblique to both the span direction and the row direction). The band members 15 are stretched between the tips of the 11 grid members 12, and the band members 15 are also connected in a grid pattern (a grid pattern in a direction along the span direction and the girder direction) to form a roof.

According to the structure of the second embodiment, a rigidity equal to or higher than that of the roof having the unit 1 having the original tense grid structure as a basic unit as in the first embodiment can be secured. By adopting the unit 11 having the deformed tense grid structure in which the grid members 12 are crossed and the bundle members 13 are provided at the intersections, the roof material can be attached to the grid surface formed by the grid members 12 without any trouble. It becomes possible.

In the second embodiment, as in the case of the first embodiment, the grid member 12 and the bundle member 13 which are the compression members constituting the unit 11 are not only steel pipes but also aluminum pipes and bundles. Fiber-reinforced resin molded pipes, wood, etc. can be adopted, and as the diagonal material 14 and the band material 15 as tensile materials, not only cable materials but also steel materials such as steel bars and fiber-reinforced resin molded materials, and the like. It is also possible to use a membrane material, a fiber-reinforced resin molded panel, or the like as a roof material.

FIGS. 5 and 6 show a third embodiment. This is based on the second embodiment described above,
The second embodiment differs from the second embodiment in that the direction of the unit 11 is changed so that the grid member 12 is continuously formed in a lattice shape in the direction along the span direction and the girder direction, and the band member 15 is inclined in the span direction and the girder direction. According to such a change, in the third embodiment, the chord members 16 (upper chord members 16 a) are stretched between the upper ends of the bundle members 13 in the direction along the span direction. It is designed to enhance the rigidity of the entire roof.

In the third embodiment, as described in the first embodiment, and as described in the following fourth embodiment (see FIG. 7), depending on the form of the roof, the bundle 13 Instead of stretching the upper chord 16a between the upper ends, the chord 16 (lower chord 16
b: not shown in FIG. 5), or both the upper chord material 16a and the lower chord material 16b may be provided, especially when the roof is curved in an upwardly convex state. 16
It is sufficient to provide only the upper chord material 16a when only b is provided and when it is curved downwardly convex. Further, since the chord member 16 is also a tensile member, a cable member can be suitably used similarly to the diagonal member 14 and the band member 15, but other tensile members such as a steel rod member, a fiber-reinforced resin molded rod member, and a film member can be used. Materials, fiber reinforced resin molded panels, etc. can also be adopted.

FIGS. 7 and 8 show a fourth embodiment. This is because the units 11 are staggered by omitting every other unit 11 based on the third embodiment, and the upper chord 16a and the upper chord 16a are respectively arranged between the upper end and the lower end of the bundle 13. The rigidity of the entire roof is secured by stretching the lower chord material 16b.

FIGS. 9 and 10 show a fifth embodiment.
This is based on the above-described fourth embodiment. However, by changing the direction of the unit 11, the second embodiment (FIG.
And FIG. 4). In the fifth embodiment, the units 11 are staggered as a whole. However, in the first embodiment (FIGS. 1 and 2).
As in the case of (1), the units 11 are continuously arranged in the span direction at the ends in the row direction, and the upper chord material 16a and the lower chord material 16b are stretched in the span direction on the bundle 13 of the series of units 11. It strengthens the rigidity of the roof edge. That is, it can be said that the fifth embodiment is obtained by replacing the unit 1 in the first embodiment with the unit 11.

Although the embodiments of the present invention have been described above, the present invention is not limited to each of the above embodiments. The present invention is not limited to the form and scale of the roof, the position of the girder, the size of the span, and other various conditions. Needless to say, various other design changes are possible.

[0024]

According to the first aspect of the present invention, both ends in the span direction of a roof having a tense grid structure unit as a basic unit are supported by girders in the girder direction, and the units are mounted on both ends in the girder direction of the roof. Since the structure is such that chords in the span direction are stretched between the bundles of these units by being continuously arranged in the span direction, the rigidity of the roof edge can be secured and the structural stability of the entire roof is sufficiently secured. be able to.

According to a second aspect of the present invention, two grid members are crossed in a cross shape, a bundle is disposed at the intersection, and a diagonal member is provided between the upper and lower ends of the bundle and each end of the grid member. As a basic unit, a unit with a deformed tense grid structure that is stretched and connected by band members that are continuously arranged and stretched in a lattice shape, structural advantages equivalent to the original tense grid structure In addition to the above, it is more effective because the roof material can be attached to the grid surface formed by the grid material without any trouble.

According to a third aspect of the present invention, in the second aspect of the present invention, both ends of the roof in the span direction are supported by girders in the girder direction, and between the upper ends or the lower ends of the bundles of each unit, or both. Since the structure is such that the chord members are stretched in the span direction, the structural stability of the entire roof can be further improved.

According to a fourth aspect of the present invention, the units having the deformed tense grid structure are arranged in a staggered manner, and the chord members are stretched between the upper ends and the lower ends of the bundle of each unit. Structural stability can be ensured without hindrance.

According to a fifth aspect of the present invention, in the invention of the fourth aspect, both ends in the span direction of the roof are supported by girders in the girder direction, and the units are continuously arranged in the span direction at both ends in the girder direction of the roof. Since the string material in the span direction is stretched between the bundles of these units, the rigidity of the roof edge can be secured, and the structural stability of the entire roof can be sufficiently secured.

According to a sixth aspect of the present invention, in any one of the first to fifth aspects of the present invention, any one of a steel pipe, an aluminum pipe, a fiber-reinforced resin molded pipe, and wood is used as the grid material and the bundle material as the compression material. The cable is made of cable, steel bar, fiber reinforced resin molded bar, membrane material, or fiber reinforced resin molded panel as tension material, diagonal material, chord material, and band material, respectively. Can be planned,
In addition, it is also possible to use a roofing material, which is reasonable.

[Brief description of the drawings]

FIG. 1 is an overall perspective view and a partially enlarged view of a roof structure according to a first embodiment of the present invention.

FIG. 2 is a plan view and an elevation view of the same.

FIG. 3 is an overall perspective view, a partially enlarged view, and a view showing a unit of a roof structure according to a second embodiment of the present invention.

FIG. 4 is a plan view and an elevation view of the same.

FIG. 5 is an overall perspective view and a partially enlarged view of a roof structure according to a third embodiment of the present invention.

FIG. 6 is a plan view and an elevation view of the same.

FIG. 7 is an overall perspective view and a partially enlarged view of a roof structure according to a fourth embodiment of the present invention.

FIG. 8 is a plan view and an elevation view of the same.

FIG. 9 is an overall perspective view and a partially enlarged view of a roof structure according to a fifth embodiment of the present invention.

FIG. 10 is a plan view and an elevation view of the same.

FIG. 11 is an overall perspective view and a partially enlarged view showing an example of a roof having a conventional tense grid structure, and a diagram showing a unit.

[Explanation of symbols]

 1 unit 2 girder 5 grid material 6 bundle material 7 diagonal material 8 chord material 8a upper chord material 8b lower chord material 11 unit 12 grid material 13 bundle material 14 diagonal material 15 band material 16 chord material 16a upper chord material 16b lower chord material

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Naohan Taniguchi 1-3-2 Shibaura, Minato-ku, Tokyo Shimizu Construction Co., Ltd. (72) Inventor Satoshi Taki 1-3-2 Shibaura, Minato-ku, Tokyo Shimizu Corporation Inside (72) Inventor Yasutoshi Tateishi 1-3-2 Shibaura, Minato-ku, Tokyo Shimizu Corporation Inside (72) Inventor Kenichi Sugisaki 1-2-3 Shibaura, Minato-ku, Tokyo Shimizu Corporation F term (reference) 2E163 DA00 FB06 FB09 FB32 FC00 FE03

Claims (6)

[Claims] 1. Four grid members made of a compressed material are connected in a rectangular frame shape, and a bundle material made of a compressed material is arranged in the center of the inside thereof, and upper and lower ends of the bundle material and each of the grid materials are connected to each other. In a roof structure configured with a unit having a tense grid structure in which a diagonal member made of a tensile member is stretched between connection points as a basic unit, the grid members are arranged in a grid in a state where the units are staggered. The roof is formed by stretching chords made of tensile material in a grid pattern between the upper ends and / or lower ends of the bundles of each unit and forming a roof. Are provided at both ends in the span direction of the roof, and at both ends in the row direction of the roof, the units are continuously arranged in the span direction with the grid material being shared, and a series of these units are provided. Roof structure, characterized in that the upper end mutual or lower mutual or both of those bundles material bets made the chord and stretched in the span direction. 2. A grid member made of a compressed material is crossed in a cross shape by two grid members made of a compressed material, and a bundle material made of a compressed material is arranged at the intersection, and the upper and lower ends of the bundle material and each end of the grid material are connected. In a roof structure comprising a unit having a deformed tense grid structure in which a diagonal member made of a tensile material is stretched between the basic units, the units are continuously arranged vertically and horizontally so that the grid material is continuously arranged in a grid. A roof structure, wherein a band member made of a tensile material is stretched in a grid pattern between the tips of the grid members of each unit to form a roof. 3. The roof structure according to claim 2, wherein a girder supporting the roof is provided at both ends in the span direction of the roof, and between upper ends of bundles of the units forming the roof. Alternatively, a roof structure characterized in that chords made of a tensile material are stretched between lower ends or both of them in the span direction of the roof. 4. A grid member made of a compressed material is crossed in a cross shape by two grid members made of a compressed material, and a bundle material made of a compressed material is arranged at the intersection, and upper and lower ends of the bundle material and each end of the grid material are connected. In a roof structure including a unit having a deformed tense grid structure in which a diagonal member made of a tensile member is stretched between the basic units, the grid members are continuously arranged in a grid in a state where the units are arranged in a staggered manner. A band material made of a tensile material is stretched in a grid pattern between the tips of the grid material of each unit, and a chord material made of the tensile material is formed in a grid pattern between the upper end and the lower end of the bundle of each unit. The structure of the roof characterized by being stretched to form a roof. 5. The roof structure according to claim 4, wherein girder supporting the roof is provided at both ends of the roof in the span direction, and the unit is spanned at both ends in the girder direction of the roof. A roof structure wherein the chords are stretched in the span direction between the upper ends and the lower ends of the bundles of the series of units continuously. 6. The roof structure according to any one of claims 1 to 5, wherein each of the grid material and the bundle material, which are compression members, is any one of a steel pipe, an aluminum pipe, a fiber-reinforced resin molded pipe, and wood. And it is characterized by adopting any one of cable material, steel bar material, fiber reinforced resin molded bar material, membrane material, fiber reinforced resin molded panel as the diagonal material, chord material and band material which are tensile materials. And the roof structure.