JPH0364033B2 - - Google Patents
Info
- Publication number
- JPH0364033B2 JPH0364033B2 JP25133984A JP25133984A JPH0364033B2 JP H0364033 B2 JPH0364033 B2 JP H0364033B2 JP 25133984 A JP25133984 A JP 25133984A JP 25133984 A JP25133984 A JP 25133984A JP H0364033 B2 JPH0364033 B2 JP H0364033B2
- Authority
- JP
- Japan
- Prior art keywords
- membrane material
- cable
- roof
- tension
- steel frame
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
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- Tents Or Canopies (AREA)
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は体育館、講堂、展示場等に要望される
透光性の良い膜材料を用いた大張間の鉄骨膜構造
屋根に関するものである。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a steel-framed membrane structure roof for large rooms using a membrane material with good translucency, which is required for gymnasiums, auditoriums, exhibition halls, etc. .
鉄骨架構に布あるいは合成樹脂シート等からな
る膜材料を張る場合、風等によつてはためくこと
がないよう膜に張力を与える必要がある。
When covering a steel frame with a membrane material such as cloth or synthetic resin sheet, it is necessary to apply tension to the membrane so that it does not flap due to wind or the like.
しかし、大規模な建築物になると、膜を緊張す
るのが困難であり、また張力が緩んんだときの張
力の再導入等も考えなければならない。 However, in the case of large-scale buildings, it is difficult to maintain tension in the membrane, and it is also necessary to consider how to reintroduce tension when the tension is loosened.
本発明はこれらの点に注目してなされたもの
で、大張間での膜の緊張ならびに張力の再導入が
容易な鉄骨膜構造屋根を提供することを目的とし
ている。 The present invention has been made with attention to these points, and an object of the present invention is to provide a steel frame membrane structure roof that allows easy tensioning of the membrane between large sections and reintroduction of tension.
本発明の鉄骨膜構造屋根では格子状に配した屋
根鉄骨１の格子を構成する各辺上に上向きのアー
チ３を形成し、各格子のアーチ３上に膜材４を張
つている。
In the steel frame membrane structure roof of the present invention, upward arches 3 are formed on each side of the lattice of the roof steel frames 1 arranged in a lattice pattern, and a membrane material 4 is stretched over the arches 3 of each lattice.
一方、屋根鉄骨１によつて形成される複数の格
子間にわたつて緊張用ケーブル５を通し、このケ
ーブル５に膜材４を係止してある。 On the other hand, a tensioning cable 5 is passed across a plurality of grids formed by the roof steel frame 1, and a membrane material 4 is secured to this cable 5.
ケーブル５は例えば屋根鉄骨１の節点２位置を
通して、屋根架構の両端でジヤツキ等を利用して
緊張する。 For example, the cable 5 passes through the node 2 positions of the roof steel frame 1 and is tensioned at both ends of the roof frame using jacks or the like.
膜材４は各格子内の点で係止具６を介して緊張
用ケーブル５に係止してあり、ケーブル５の緊張
により、アーチ３で上方に押し上げらている膜材
４をケーブル側、すなわち下向きに引張り、膜材
４に張力が導入される。 The membrane material 4 is locked to the tensioning cable 5 via the locking device 6 at each point within the grid, and due to the tension of the cable 5, the membrane material 4 pushed upward by the arch 3 is pushed up toward the cable side. That is, it is pulled downward, and tension is introduced into the membrane material 4.
また、膜材４に与えられた張力が緩んだとき
は、再度屋根架構端部でケーブルを緊張すること
により、膜材４への張力再導入が行われる。 Further, when the tension applied to the membrane material 4 is loosened, the tension is reintroduced to the membrane material 4 by tightening the cable again at the end of the roof frame.
第１図〜第７図は二方向アーチの屋根鉄骨架構
に適用した場合の実施例を示したもので、二方向
に大きなアーチを形成する鉄骨１で屋根を格子状
に仕切り、格子を構成する各辺上の小さなアーチ
３を介して膜材４を張つている。膜材４として
は、例えば合成繊維系膜材、ガラス繊維系膜材等
を用いることができる。
Figures 1 to 7 show an example of application to a two-way arch roof steel frame, in which the roof is partitioned into a lattice shape using steel frames 1 that form large arches in two directions, forming a lattice. A membrane material 4 is stretched through small arches 3 on each side. As the membrane material 4, for example, a synthetic fiber membrane material, a glass fiber membrane material, etc. can be used.
第１図は上方から見た斜視図、第２図は底面図
であり、複数本のケーブル５が各屋根鉄骨１と約
45゜の角度で交差し、鉄骨１の節点２間を複数の
格子間にわたつて通つており、両端を鉄骨架構外
周のいわゆるテンシヨンリング７に固定してい
る。 Fig. 1 is a perspective view seen from above, and Fig. 2 is a bottom view, in which a plurality of cables 5 are connected to each roof steel frame 1 and approximately
They intersect at an angle of 45°, pass between the nodes 2 of the steel frame 1 and across a plurality of grids, and are fixed at both ends to so-called tension rings 7 on the outer periphery of the steel frame.
第７図はこれを裏面から見た斜視図であり、ケ
ーブル５は鉄骨１に固定されたフツク状の金具等
を介して各節点２を通り、緊張方向には摺動自在
になつている。また、格子のほぼ中央で、係止具
６により膜材４をケーブル５に係止してある。な
お、この場合もケーブル５は係止具６に対し、緊
張方向に摺動自在としている。 FIG. 7 is a perspective view of this as seen from the back, and the cable 5 passes through each node 2 via hook-shaped metal fittings etc. fixed to the steel frame 1, and is slidable in the tensioning direction. Further, the membrane material 4 is locked to the cable 5 by a locking tool 6 at approximately the center of the grid. In this case as well, the cable 5 is allowed to slide freely in the tensioning direction with respect to the locking tool 6.
第５図は一つの格子についてケーブル５と膜材
４との関係を示したもので、図中Ｌで示される点
が鉄骨１の節点２に相当し、最も低く、Ｕで示さ
れる点がアーチ３の頂点に相当し、最も高くなつ
ている。今、ケーブル５に緊張力を導入すると、
係止具６の位置で膜材４が下方に引張られて、膜
材４が張力によつて伸び、隣接する格子部分と連
続した４つの曲面が形成される。なお、本実施例
で格子の一辺の長さｌは8m程度を考えている。
第３図は第２図の−断面、すなわち鉄骨１に
沿つた断面を示しており、膜材４はアーチ３の頂
点部分でアーチ３と接触している。第４図は第２
図の−断面、すなわちケーブル５に沿つた断
面を示しており、膜材４はケーブル５位置で下方
に引張られ、多数の曲面を形成することになる。 Fig. 5 shows the relationship between the cable 5 and the membrane material 4 for one grid. The point indicated by L in the figure corresponds to the node 2 of the steel frame 1, the lowest point, and the point indicated by U corresponds to the arch. It corresponds to the apex of 3 and is the highest. Now, if we introduce tension to cable 5,
The membrane material 4 is pulled downward at the position of the locking tool 6, and the membrane material 4 is expanded by the tension, forming four curved surfaces continuous with the adjacent lattice portions. In this embodiment, the length l of one side of the grid is considered to be about 8 m.
FIG. 3 shows a negative section in FIG. 2, that is, a section along the steel frame 1, and the membrane material 4 is in contact with the arch 3 at its apex. Figure 4 is the second
This figure shows a cross section along the cable 5, and the membrane material 4 is pulled downward at the cable 5 position, forming a large number of curved surfaces.
第８図は他の実施例として、かまぼこ状の一方
向アーチの屋根鉄骨架構に適用した場合の実施例
を示したもので、この場合ケーブル５は鉄骨１に
よつて形成される大きなアーチと平行に一方向の
み配してある。なお、この図は一部分のみ示した
もので、格子は大きなアーチと直交する方向に連
続する。 FIG. 8 shows another embodiment in which the cable 5 is applied to a roof steel frame structure with a semicircular one-way arch. In this case, the cable 5 is parallel to the large arch formed by the steel frame 1. are arranged in only one direction. Note that this figure shows only a portion of the grid, and the lattice continues in a direction perpendicular to the large arch.
本発明の鉄骨膜構造屋根は次のような利点、効
果を有する。
The steel membrane structure roof of the present invention has the following advantages and effects.
ケーブルを緊張することにより、アーチ上に
張つた膜材を下向きに引張り張力を与えるの
で、風圧力に対して膜材がはためくことがな
い。 By tensioning the cable, a downward tension is applied to the membrane material stretched over the arch, so the membrane material does not flap due to wind pressure.
鉄骨架構の両端でケーブルを緊張するだけで
膜材に張力が導入され、緩んだ場合でも張力の
再導入が容易である。 Tension is introduced into the membrane material simply by tensioning the cables at both ends of the steel frame, and even if they become loose, tension can be easily re-introduced.
ケーブルは屋根鉄骨間にわたつて通してあ
り、吹上げの風圧力に対しても、屋根鉄骨に有
効な下向きの力を与えることができる。 The cables are passed between the roof steel frames, and can apply an effective downward force to the roof steel frames even in the face of updraft wind pressure.
第１図は本発明の実施例を示す上方から見た斜
視図、第２図は底面図、第３図は第２図の−
断面図、第４図は第２図の−断面図、第５図
は一つの格子面における平面図、第６図は正面
図、第７図は屋根裏面の斜視図、第８図は他の実
施例における斜視図である。
１……鉄骨、２……節点、３……アーチ、４…
…膜材、５……ケーブル、６……係止具、７……
テンシヨンリング。
Fig. 1 is a perspective view of an embodiment of the present invention seen from above, Fig. 2 is a bottom view, and Fig. 3 is the same as Fig. 2.
4 is a cross-sectional view of FIG. 2, FIG. 5 is a plan view of one lattice plane, FIG. 6 is a front view, FIG. 7 is a perspective view of the attic, and FIG. It is a perspective view in an example. 1...Steel frame, 2...Node, 3...Arch, 4...
... Membrane material, 5 ... Cable, 6 ... Locking tool, 7 ...
tension ring.
Claims (1)
各辺上に上向きのアーチ３を形成し、前記アーチ
３上に膜材４を張り、一方前記屋根鉄骨１によつ
て形成される複数の格子間にわたつて緊張用ケー
ブル５を通し、前記膜材４を各格子内の点で係止
具６を介して前記緊張用ケーブル５に係止して下
向きに引張ることにより膜材４に張力を導入して
あることを特徴とする鉄骨膜構造屋根。1 An upward arch 3 is formed on each side constituting the lattice of the roof steel frames 1 arranged in a lattice pattern, and a membrane material 4 is stretched over the arch 3, while a plurality of roof steel frames 1 formed by the roof steel frames 1 are A tensioning cable 5 is passed between the grids, and the membrane material 4 is locked to the tensioning cable 5 at a point in each grid via a locking device 6 and pulled downward, thereby applying tension to the membrane material 4. A steel membrane structure roof characterized by the introduction of.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25133984A JPS61130534A (en) | 1984-11-28 | 1984-11-28 | Reinforcing bar film structural roof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25133984A JPS61130534A (en) | 1984-11-28 | 1984-11-28 | Reinforcing bar film structural roof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61130534A JPS61130534A (en) | 1986-06-18 |
| JPH0364033B2 true JPH0364033B2 (en) | 1991-10-03 |
Family
ID=17221349
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP25133984A Granted JPS61130534A (en) | 1984-11-28 | 1984-11-28 | Reinforcing bar film structural roof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61130534A (en) |
-
1984
- 1984-11-28 JP JP25133984A patent/JPS61130534A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61130534A (en) | 1986-06-18 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |