JPH02210175A - Prevention method of vibratory roof in air membrane structure - Google Patents
Prevention method of vibratory roof in air membrane structureInfo
- Publication number
- JPH02210175A JPH02210175A JP30749489A JP30749489A JPH02210175A JP H02210175 A JPH02210175 A JP H02210175A JP 30749489 A JP30749489 A JP 30749489A JP 30749489 A JP30749489 A JP 30749489A JP H02210175 A JPH02210175 A JP H02210175A
- Authority
- JP
- Japan
- Prior art keywords
- cable
- roof
- cables
- membrane
- membrane structure
- 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.)
- Granted
Links
- 239000012528 membrane Substances 0.000 title claims abstract description 16
- 238000000034 method Methods 0.000 title description 6
- 230000002265 prevention Effects 0.000 title 1
- 238000005452 bending Methods 0.000 abstract description 4
- 238000010276 construction Methods 0.000 abstract description 4
- 238000004873 anchoring Methods 0.000 abstract 1
- 239000000463 material Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000012779 reinforcing material Substances 0.000 description 1
Landscapes
- Tents Or Canopies (AREA)
Abstract
Description
【発明の詳細な説明】
イ 発明の目的
１ 産業上の利用分野
この発明は、空気膜構造物の施工時およびデフレート時
におけるケーブルの振動を防止する方法に関するもので
ある。DETAILED DESCRIPTION OF THE INVENTION A. Object of the Invention 1. Field of Industrial Application This invention relates to a method for preventing cable vibration during construction and deflation of an air membrane structure.
２ 従来の技術
空気膜構造物は、一般に屋根面がケーブルで補強された
膜材により構成される構造物といえるが、これは内部の
圧力を外部圧力より高くし、その圧力で屋根を支持しイ
ンフレート状態を保つものである。2. Conventional technology Pneumatic membrane structures can generally be said to be structures whose roof surface is made of membrane material reinforced with cables, but this is a structure in which the internal pressure is higher than the external pressure, and the roof is supported by that pressure. It maintains the inflated state.
空気膜構造物は、通常インフレート状態を保つことが望
ましく、この状態では屋根面は一定の剛性があり安定し
た状態となる。It is usually desirable for the air membrane structure to maintain an inflated state, and in this state, the roof surface has a certain degree of rigidity and is in a stable state.
しかし、内圧が一定圧以下になると屋根面は降下しデフ
レート状態となる。この場合屋根は下に下がった状態で
安定するが、外乱に対する安定度は低くなる。特に風に
対しては風圧の変動によって不安定状態に近い振動を起
こすことが予想される。However, when the internal pressure falls below a certain level, the roof surface drops and enters a deflated state. In this case, the roof is stable when lowered, but its stability against external disturbances is lower. Especially in the case of wind, it is expected that fluctuations in wind pressure will cause vibrations that are close to unstable.
屋根面が不安定な振動を起こした場合、過大な応力が発
生し、ケーブルの破断あるいは境界部分即ちケーブルの
アンカ一部分の破壊等が予想される。If the roof surface undergoes unstable vibrations, excessive stress is generated, and it is expected that the cable will break or the boundary portion, ie, a portion of the cable anchor, may break.
しかし、施工時およびデフレート状態での屋根面の挙動
を制御する方法または装置は開発されてないのが現状で
ある。However, at present, no method or device has been developed to control the behavior of the roof surface during construction and in the deflated state.
３ 発明が解決しようとする問題点
この発明は、上記したように、施工時およびデフレート
状態で、内部の圧力が一定圧以下のときに屋根面の不安
定な振動により過大な応力が発生し、ケーブルの破断あ
るいは境界部分の破壊等が起こらないよう不安定な振動
の発生を未然に防ぐ方法を提供することを目的とするも
のである。3 Problems to be Solved by the Invention As mentioned above, this invention solves the problem that excessive stress is generated due to unstable vibration of the roof surface when the internal pressure is below a certain pressure during construction and in the deflated state. The object of this invention is to provide a method for preventing the occurrence of unstable vibrations so as not to cause breakage of the cable or destruction of the boundary portion.
口 発明の構成
１ 問題点を解決するための手段
この発明は、空気膜構造物の屋根面（５）がデフレート
状態のときに圧縮空気を内蔵したチューブ（４）をケー
ブル（１）に添わせ、適宜な間隔で固定して屋根面（５
）の振動を防止するようにしたものである。Arrangement of the Invention 1 Means for Solving Problems This invention provides a method for attaching a tube (4) containing compressed air to a cable (1) when the roof surface (5) of an air membrane structure is in a deflated state. , fix it at appropriate intervals and attach it to the roof surface (5
) to prevent vibration.
２作用
ケーブルの曲率とほぼ同一の曲率を有する材料例えば圧
縮空気を内蔵したチューブ、またはエンビ管等をケーブ
ル面に添わせて固定することによりケーブルの曲げ剛性
を高め振動を防止することができる。By fixing a material having approximately the same curvature as the curvature of the two-acting cable, such as a tube containing compressed air or an engineered pipe, along the cable surface, the bending rigidity of the cable can be increased and vibration can be prevented.
３ 実施例
この発明を図面に基づいて説明すれば、第１図が屋根面
がデフレート状態のときの建物の断面図で、第２図が膜
とケーブルおよびチューブの納まりを示した斜視図であ
り、（１）がケーブルで端部が構造物の側壁（６）に固
定されており、第２図に示したように、このケーブル（
１）に（２）の膜材が（３）の膜取付は金物によって固
定され（５）の屋根面を形成している。このときにあら
かじめデフレート状態のときのケーブル（１）の曲率と
ほぼ同一の曲率に加工したチューブ（４）Ｉ、ケーブル
（１）の下面に添わせ、ケーブル（１）とチューブ（４
）を取付はバンド（７）等を用いて適宜な間隔で一体的
に固定する。その後圧縮空気をチューブ（４）の中に圧
入し剛性をもたせる。以下同じ要領で各ケーブル（１）
をチューブ（４）で補強することによりケーブル（１）
の曲げ剛性を高め振動を防止するのである。ここに用い
るチューブの径は、１００〜５００．、位でチューブ（
４）の内圧は２〜５喀ん２程度である。3. Embodiment To explain this invention based on the drawings, Fig. 1 is a sectional view of a building when the roof surface is in a deflated state, and Fig. 2 is a perspective view showing the housing of the membrane, cables, and tubes. , (1) is a cable whose end is fixed to the side wall (6) of the structure, and as shown in Figure 2, this cable (
The membrane material of (2) and (3) are fixed to 1) with metal fittings to form the roof surface of (5). At this time, a tube (4) I, which has been processed in advance to have almost the same curvature as the curvature of the cable (1) in the deflated state, is placed along the bottom surface of the cable (1), and the cable (1) and tube (4)
) are integrally fixed at appropriate intervals using bands (7) or the like. Compressed air is then forced into the tube (4) to provide rigidity. Follow the same procedure below for each cable (1)
Cable (1) by reinforcing it with tube (4)
This increases the bending rigidity and prevents vibration. The diameter of the tube used here is 100 to 500. , the tube (
The internal pressure of 4) is about 2 to 5.
別の実施例としては（図示せず）圧縮空気を内蔵したチ
ューブ（４）の代わりにあらかじめケーブル（１）の曲
率とほぼ同一の曲率に加工したエンビ管を使用すること
もできる。In another embodiment (not shown), instead of the tube (4) containing compressed air, it is also possible to use an engineered tube that has been previously processed to have approximately the same curvature as the curvature of the cable (1).
インフレート状態にするときにはチューブ（４）の中の
空気圧を下げチューブ（４）の取付はバンド（８）をは
ずしチューブ（４）を取り除いた状態に戻せばよい。When inflating, the air pressure inside the tube (4) is lowered, and the tube (4) can be attached by removing the band (8) and returning the tube (4) to its removed state.
主にチューブ（４）を補強材とするのはインフレート状
態のときには不必要になり取りはずさなければならず、
そのときの取扱いが容易なためである。Mainly, the use of the tube (4) as a reinforcing material becomes unnecessary in the inflated state and must be removed.
This is because it is easy to handle at that time.
ハ 発明の効果
デフレート状態のときのケーブルの曲率とほぼ同一の曲
率を有する材料、例えば圧縮空気を内蔵したチューブを
ケーブルに添わせ適宜な間隔で一体的に固定することに
よりケーブルの曲げ剛性を高め、外乱に対する不安定な
振動の発生を防止できるのでケーブルの破断等がなくな
るという効果がある。C. Effects of the Invention By attaching a material having a curvature that is almost the same as the curvature of the cable in the deflated state, such as a tube containing compressed air, to the cable and integrally fixing it at appropriate intervals, the bending rigidity of the cable can be increased. Since it is possible to prevent the occurrence of unstable vibrations due to external disturbances, there is an effect that cable breakage and the like are eliminated.
図面は本発明の一実施例を示したもので、第１図が屋根
面がデフレート状態のときの建物の断面図で、第２図が
膜とケーブルおよびチューブの納まりを示した斜視図で
ある。
１・・ケーブル、２・・膜、３・・膜取付は金物、４・
・チューブ、５・・屋根面、６・・側壁、７・・取付は
バンド、
第１図
第２図
特許出願人 株式会社 大林組
代 理 人 白根 弘行The drawings show one embodiment of the present invention; Fig. 1 is a cross-sectional view of the building when the roof surface is in a deflated state, and Fig. 2 is a perspective view showing the housing of the membrane, cables, and tubes. . 1. Cable, 2. Membrane, 3. Membrane mounting hardware, 4.
・Tube, 5... Roof surface, 6... Side wall, 7... Mounting band, Figure 1 Figure 2 Patent applicant: Obayashi Corporation Agent Hiroyuki Shirane
Claims (1)
圧縮空気を内蔵したチューブ（４）をケーブル（１）に
添わせ、適宜な間隔で固定したことを特徴とする空気膜
構造物の屋根面振動防止方法An air membrane structure characterized in that when the roof surface (5) of the air membrane structure is in a deflated state, a tube (4) containing compressed air is attached to a cable (1) and fixed at appropriate intervals. How to prevent roof vibration
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30749489A JPH02210175A (en) | 1989-11-29 | 1989-11-29 | Prevention method of vibratory roof in air membrane structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30749489A JPH02210175A (en) | 1989-11-29 | 1989-11-29 | Prevention method of vibratory roof in air membrane structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02210175A true JPH02210175A (en) | 1990-08-21 |
| JPH0377354B2 JPH0377354B2 (en) | 1991-12-10 |
Family
ID=17969765
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP30749489A Granted JPH02210175A (en) | 1989-11-29 | 1989-11-29 | Prevention method of vibratory roof in air membrane structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02210175A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100756930B1 (en) * | 2006-12-06 | 2007-09-07 | 삼성물산 주식회사 | Buckling prevention structure and construction method of circular steel pipe reinforced with air tube |
-
1989
- 1989-11-29 JP JP30749489A patent/JPH02210175A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100756930B1 (en) * | 2006-12-06 | 2007-09-07 | 삼성물산 주식회사 | Buckling prevention structure and construction method of circular steel pipe reinforced with air tube |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0377354B2 (en) | 1991-12-10 |
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