JPH04202977A - Fitting structure for film body edge part of concrete-made dome roof opening part - Google Patents
Fitting structure for film body edge part of concrete-made dome roof opening partInfo
- Publication number
- JPH04202977A JPH04202977A JP32945390A JP32945390A JPH04202977A JP H04202977 A JPH04202977 A JP H04202977A JP 32945390 A JP32945390 A JP 32945390A JP 32945390 A JP32945390 A JP 32945390A JP H04202977 A JPH04202977 A JP H04202977A
- Authority
- JP
- Japan
- Prior art keywords
- opening
- membrane
- edge
- concrete
- dome roof
- 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
- 239000012779 reinforcing material Substances 0.000 claims abstract description 23
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 18
- 239000012528 membrane Substances 0.000 claims description 121
- 239000007788 liquid Substances 0.000 abstract description 11
- 239000002184 metal Substances 0.000 abstract description 3
- 230000002093 peripheral effect Effects 0.000 abstract description 3
- 239000011247 coating layer Substances 0.000 abstract description 2
- 238000005553 drilling Methods 0.000 abstract description 2
- 230000008595 infiltration Effects 0.000 abstract 1
- 238000001764 infiltration Methods 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 238000000926 separation method Methods 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 11
- 238000009423 ventilation Methods 0.000 description 10
- 230000000694 effects Effects 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 238000003860 storage Methods 0.000 description 5
- 238000005520 cutting process Methods 0.000 description 3
- 230000002787 reinforcement Effects 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 238000005336 cracking Methods 0.000 description 2
- 238000009415 formwork Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 239000004570 mortar (masonry) Substances 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000005536 corrosion prevention Methods 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
Landscapes
- Tents Or Canopies (AREA)
- Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野〕
本発明は、液体や低温液化ガス、粉体、粒状物等の各種
貯蔵物を貯蔵する貯槽等の構造物の上部を被覆するコン
クリート製ドーム（以下、本発明でいうドームとは球面
、曲面、多面体等各種形状のものを含む）屋根の内側に
膜体を張設した該ドーム屋根に、通気孔、換気孔、マン
ホール、点検孔、水位計や調整弁等の機器取付は用のノ
ズル等の各種用途に使用するために設けた開口部におけ
る膜体縁部の取付は構造に関する。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a concrete dome that covers the upper part of a structure such as a storage tank for storing various stored materials such as liquids, low-temperature liquefied gas, powder, and granular materials. (Hereinafter, the dome referred to in the present invention includes various shapes such as spherical, curved, polyhedral, etc.) The dome roof, which has a membrane attached to the inside of the roof, has ventilation holes, ventilation holes, manholes, inspection holes, water level The mounting of devices such as gauges and regulating valves is related to the structure, and the mounting of membrane edges at openings provided for various uses such as nozzles is related to the structure.
［従来の技術と発明が解決しようとする課題］内側に膜
体を張設したコンクリート製ドーム屋根において、通気
孔、換気孔、マンホール等の各種用途に使用するための
開口部を５前記ドーム屋根に設ける必要性が生じる。[Prior art and problems to be solved by the invention] In a concrete dome roof with a membrane stretched on the inside, openings for various purposes such as ventilation holes, ventilation holes, manholes, etc. are provided in the dome roof. There arises a need to provide a.
ところが、内側に膜体を張設したコンクリート製ドーム
屋根に開口部を設けた場合、膜体に開口部を形成する際
に膜の張力作用によって該膜体の開口部周縁に亀裂を生
じたり、あるいは該開口部付近の膜体縁部が剥れてコン
クリートと膜体との間に隙間が生じたり、あるいはまた
貯槽等として使用中に、該隙間にガスや液体が侵入して
コンクリート屋根内面を劣化させる等の難点があった。However, when an opening is provided in a concrete dome roof with a membrane stretched on the inside, cracks may occur around the opening of the membrane due to the tension of the membrane when forming the opening in the membrane. Alternatively, the edge of the membrane near the opening may peel off, creating a gap between the concrete and the membrane, or gas or liquid may enter the gap during use as a storage tank, damaging the inner surface of the concrete roof. There were drawbacks such as deterioration.
本発明は上記の点に鑑みてなされたもので、その目的と
するところは、内側に膜体を張設したコンクリート製ド
ーム屋根の開口部付近の膜体縁部の亀裂が更に拡大する
ことがな（開口部付近の膜体縁部で阻止できるようにし
、かつ開口部付近の膜体縁部が剥離することなくコンク
リートに密着するようにするとともに、開口部付近の膜
体縁部からガスや液体が侵入してコンクリート屋根内面
を劣化させることがないようにしたコンクリート製ドー
ム屋根開口部の膜体縁部の取付は構造を提供することに
ある。The present invention has been made in view of the above points, and its purpose is to prevent further expansion of cracks at the edge of the membrane near the opening of a concrete dome roof with a membrane stretched inside. (The edge of the membrane near the opening should be able to stop the gas, and the edge of the membrane near the opening should adhere tightly to the concrete without peeling off.) The purpose of the membrane edge installation of a concrete dome roof opening is to provide a structure that prevents liquids from entering and degrading the inner surface of the concrete roof.
［課題を解決するための手段コ
本発明に係るコンクリート製ドーム屋根開口部の膜体縁
部の取付は構造は、内側に膜体を張設したコンクリート
製ドーム屋根に開口部を穿設し、該開口部付近の膜体縁
部を押え板と止め金具の止着具にて固定したものである
。[Means for Solving the Problems] The structure of attaching the membrane edge of the concrete dome roof opening according to the present invention is to drill an opening in a concrete dome roof with a membrane stretched on the inside, The edge of the membrane near the opening is fixed with a retaining plate and a fastener.
また、本発明では内側に膜体を張設したコンクリート製
ドーム屋根に穿設した開口部付近の膜体縁部は、コンク
リート側の前記膜体縁部にタブを設け、該タブと開口部
周縁に沿って膜体上に配設した縁部補強材を一体に結合
し、該縁部補強材と一体に結合した前記タブとコンクリ
ート中の鉄筋の両者を結束固定するようにしたものであ
る。In addition, in the present invention, the edge of the membrane near the opening drilled in the concrete dome roof with the membrane stretched on the inside is provided with a tab on the edge of the membrane on the concrete side, and the tab and the periphery of the opening The edge reinforcing material disposed on the membrane body along the edge reinforcing material is integrally bonded, and both the tab and the reinforcing bar in the concrete, which are integrally bonded to the edge reinforcing material, are bound and fixed.
さらに、本発明では内側に膜体を張設したコンクリート
製ドーム屋根に穿設した開口部付近の膜体縁部は、開口
部の下部周縁から開口部の内壁面に向けて当接する開口
部被覆層を設けるようにしたものである。Furthermore, in the present invention, the edge of the membrane near the opening drilled in the concrete dome roof with the membrane stretched on the inside is covered with an opening that abuts from the lower periphery of the opening toward the inner wall surface of the opening. It is designed to have layers.
［作用］
内側に膜体を張設したコンクリート製ドーム屋根に開口
部を穿設し、その開口部付近の膜体縁部を押え板と止め
金具の止着具にて固定することにより、該膜体縁部はコ
ンクリート面に固着することとなり、膜体縁部の剥離が
解消され１．かつ貯槽等として使用中にその膜体縁部か
らガスや液体が侵入することがなくなる。こうして得ら
れた開口部は通気孔、換気孔、マンホール等として使用
することができる。[Function] By drilling an opening in a concrete dome roof with a membrane stretched on the inside and fixing the edge of the membrane near the opening with a retaining plate and a fastener of a stopper. The edge of the membrane adheres to the concrete surface, eliminating peeling of the edge of the membrane.1. Moreover, gas and liquid will not enter from the edge of the membrane body during use as a storage tank or the like. The openings thus obtained can be used as ventilation holes, ventilation holes, manholes, etc.
また、内側に膜体を張設したコンクリート製ドーム屋根
に穿設した開口部付近の膜体縁部は、コンクリート側の
前記膜体縁部にタブを設け、該タブと開口部周縁に沿っ
て膜体上に配設した縁部補強材を結合し、該縁部補強材
と結合した前記タブとコンクリート中の鉄筋の両者を結
束固定するようにしたので、縁部補強材によって開口部
周縁の膜体が強固に補強され、亀裂防止、剥離防止およ
びガスや液体の侵入防止が一層強化される。In addition, at the edge of the membrane near the opening drilled in the concrete dome roof with the membrane stretched on the inside, a tab is provided on the edge of the membrane on the concrete side, and a tab is provided along the tab and the periphery of the opening. The edge reinforcing material placed on the membrane body is bonded, and both the tabs bonded to the edge reinforcing material and the reinforcing bars in the concrete are bound and fixed, so that the edge reinforcing material protects the periphery of the opening. The membrane body is strongly reinforced, and the prevention of cracking, peeling, and intrusion of gas and liquid is further strengthened.
そして、内側に膜体を張設したコンクリート製ドーム屋
根に穿設した開口部付近の膜体縁部は、開口部の下部周
縁から開口部の内壁面に向けて当接する開口部被覆層を
設けるようにしたことにより、剥離現象が完全に解消さ
れ、シール効果も高まりガスや液の侵入が皆無となる。Then, the edge of the membrane near the opening drilled in the concrete dome roof with the membrane stretched inside is provided with an opening covering layer that contacts from the lower periphery of the opening toward the inner wall surface of the opening. By doing so, the peeling phenomenon is completely eliminated, the sealing effect is enhanced, and there is no intrusion of gas or liquid.
［実施例］
以下、本発明の一実施例を図面に基いて具体的に説明す
る。[Example] Hereinafter, an example of the present invention will be specifically described based on the drawings.
第１図（ａ）〜（ｃ）は本発明の一実施例を示すコンク
リート製ドーム屋根開口部の形成とその膜体縁部の取付
は工程を示す断面図である。FIGS. 1(a) to 1(c) are sectional views illustrating the steps of forming a concrete dome roof opening and attaching the membrane edge according to an embodiment of the present invention.
第１図（’ ａ ）は鉄筋１ａを配設したコンクリート
製１ぐ一ム屋根１の所定箇所に、通気孔、換気孔、マン
ホール、点検孔、水位計や調整弁等の機器取付は用のノ
ズル等の各種用途に使用するために設ける開口部２の型
枠（図示せず）撤去後の状態を示す断面図である。Figure 1 ('a) shows that equipment such as ventilation holes, ventilation holes, manholes, inspection holes, water level gauges, and regulating valves can be installed at specified locations on a concrete single-frame roof 1 with reinforcing bars 1a installed. FIG. 2 is a cross-sectional view showing the state of an opening 2 provided for use in various applications such as a nozzle after the formwork (not shown) is removed.
第１図（ａ）ではコンクリ−１・製ドーム屋根ｌの内側
に張設した膜体３が開口部２を覆ったままの状態を示し
ている。開口部２を覆った膜体３は開口部２を形成する
ための型枠（図示せず）を支持する部材としての役割を
果している。FIG. 1(a) shows a state in which the opening 2 is still covered by the membrane 3 stretched inside the concrete dome roof l. The membrane 3 covering the opening 2 serves as a member that supports a mold (not shown) for forming the opening 2.
第１図（ｂ）はコンクリート製ドーム屋根１で被覆され
た貯槽（図示せず）内のエアー圧力を弱めるか、あるい
はエアー圧力をかけない状態の下で開口部２に相当する
膜体３部分を切断して開口した状態を示す断面図である
。FIG. 1(b) shows the portion of the membrane 3 corresponding to the opening 2 under conditions where the air pressure in the storage tank (not shown) covered with the concrete dome roof 1 is weakened or no air pressure is applied. FIG.
開口部２付近の膜体縁部３ａは開口部２の下端周縁のコ
ンクリ−）・面から離脱して剥離状態となっている。The membrane edge 3a near the opening 2 has separated from the concrete surface of the lower end periphery of the opening 2 and is in a peeled state.
第１図（ｃ）は開口部２付近の膜体縁部３ａを止着具４
にて固定した状態を示す断面図である。In FIG. 1(c), the membrane edge 3a near the opening 2 is fixed with a fastening tool 4.
FIG.
止着具４としては例えば、第１図（ｃ）に示すように押
え板５を膜体縁部３ａに沿って連続的または不連続的に
当てて、その上からポル１へ等の止め金具６にてコンク
リ−１・側に固定する。こうして得られた開口部２付近
の膜体縁部３ａは、開口部２の下端周縁のコンクリート
面に密着した状態となる。As the fastening tool 4, for example, as shown in FIG. 1(c), a holding plate 5 is applied continuously or discontinuously along the membrane edge 3a, and a fastening tool such as the pole 1 is attached from above. Fix it to the concrete 1 side at step 6. The membrane edge 3a near the opening 2 thus obtained is in close contact with the concrete surface of the lower end periphery of the opening 2.
この実施例では、止着具４を膜体３部分の切断開口後に
取付けた場合を示したが、該土着具４を膜体３部分の切
断開口前に取付けてもよい。In this embodiment, a case is shown in which the fixing tool 4 is attached after the cutting opening of the membrane 3 portion, but the fixing tool 4 may be attached before the cutting opening of the membrane 3 portion.
第２図（ａ）〜（ｄ）は本発明に係るコンクリート製ド
ーム屋根開口部の膜体縁部の取付は構造の第２の実施例
を示す断面図および斜視図である第２図（ａ）は開口前
の膜体３の開口部２付近の膜体３上に設けたタブ７をコ
ンクリート中の鉄筋１ａに結束した状態を示す断面図で
ある。2(a) to 2(d) are sectional views and perspective views showing a second embodiment of the structure for attaching the membrane edge of the concrete dome roof opening according to the present invention. ) is a sectional view showing a state in which tabs 7 provided on the membrane body 3 near the opening 2 of the membrane body 3 before opening are tied to reinforcing bars 1a in concrete.
開口部２付近の膜体３上にタブ７を形成するに当たって
は、第２図（ｂ、）に示すように膜体３と同種または異
種の材料により断面り字状あるいはその他の各種形状に
切断加工し、その上部に結束用の穴７ａを明け、その下
部７ｂは膜体３上に溶着、接着等の手段により固定する
。８はタブ７およびコンクリート中の鉄筋１ａの両者を
結束する結束線で、コンクリートを打設する前に予め、
該結束線８を用いてタブ７と鉄筋１ａを結束してお（。To form the tab 7 on the membrane body 3 near the opening 2, as shown in FIG. A hole 7a for bundling is formed in the upper part of the membrane body 3, and the lower part 7b of the membrane body 3 is fixed on the membrane body 3 by means of welding, adhesion, etc. 8 is a binding wire that binds both the tab 7 and the reinforcing bar 1a in the concrete.
Bind the tab 7 and the reinforcing bar 1a using the binding wire 8 (.
タブ７と鉄筋１ａの結束後、膜体２上に型枠（図示せず
）を用いて開口部２を有するモルタル層９を形成し、そ
のモルタル層９の上に鉄筋ｌａ入りのコンクリート層１
０を打設してコンクリート製ドーム屋根１を得る。After binding the tabs 7 and reinforcing bars 1a, a mortar layer 9 having openings 2 is formed on the membrane body 2 using a formwork (not shown), and a concrete layer 1 containing reinforcing bars la is formed on the mortar layer 9.
0 to obtain a concrete dome roof 1.
開口部２を覆った膜体３は第２図（ｃ）に示すように開
口部２に相当する膜体３部分を切断して開口し、その開
口後は第２図（ｄ）で示したように開口部２付近の膜体
縁部３ａを前記した止着具４にて固定するようにする。The membrane 3 that covered the opening 2 was opened by cutting the part of the membrane 3 corresponding to the opening 2 as shown in FIG. 2(c), and the opening was as shown in FIG. 2(d). The membrane edge 3a near the opening 2 is fixed with the above-mentioned fixing device 4 as shown in FIG.
なお、密着状態が良好であれば止着具４にて固定するこ
となくそのままの状態であってもよい。In addition, if the close contact state is good, the state may be left as it is without being fixed with the fixing tool 4.
また、止着具４は膜体３部分の切断開口前に取付けても
よい。Further, the fastener 4 may be attached before the cut opening of the membrane 3 portion.
第３図（ａ）〜（Ｃ）は本発明に係るコンクリート製ド
ーム屋根開口部の膜体縁部の取付は構造の第３の実施例
を示す断面図および斜視図である第３図（ａ）は開口前
の膜体３の開口部２付近の膜体３上に設けたタブ７をコ
ンクリート中の鉄筋１ａに結束し、さらに膜体３の開口
部２周縁に沿って膜体３上に配設した棒状の縁部補強材
１１にて膜体３の開口部２周縁を補強した状態を示す断
面図である。3(a) to 3(C) are sectional views and perspective views showing a third embodiment of the structure for attaching the membrane edge of the concrete dome roof opening according to the present invention. ) is to tie the tab 7 provided on the membrane body 3 near the opening 2 of the membrane body 3 before opening to the reinforcing bar 1a in the concrete, and then tie the tab 7 provided on the membrane body 3 near the opening 2 of the membrane body 3 to the membrane body 3 along the periphery of the opening 2 of the membrane body 3. FIG. 3 is a cross-sectional view showing a state in which the periphery of the opening 2 of the membrane body 3 is reinforced with a rod-shaped edge reinforcing member 11 provided.
第３図（ｂ）は膜体３の開口部２周縁に沿って配設した
タブ７と棒状の縁部補強材１１との位置関係を示す斜視
図である。FIG. 3(b) is a perspective view showing the positional relationship between the tab 7 disposed along the periphery of the opening 2 of the membrane body 3 and the rod-shaped edge reinforcing member 11.
膜体３の開口部２周縁に沿って固着した帯状の縁部補強
材支持材１２は、棒状の縁部補強材１１を巻き込むよう
にして、その重ね合わせ部分を熱溶着、接着等の手段に
より固着し、該重ね合わせ部分のうちの非固着部分の上
側部分を所定間隔を置いて起立させてタブ７を形成亨る
ようにする。The band-shaped edge reinforcing material supporting material 12 fixed along the periphery of the opening 2 of the membrane body 3 wraps around the rod-shaped edge reinforcing material 11, and the overlapping portion is bonded by heat welding, gluing, etc. The upper portions of the unattached portions of the overlapping portions are made to stand up at predetermined intervals to form tabs 7.
第３図（ｃ）は膜体３の開口部２相当部位を切断開口し
た状態−を示す断面図である。FIG. 3(c) is a sectional view showing a state in which a portion of the membrane body 3 corresponding to the opening 2 is cut open.
こうして膜体３の開口部２周縁に沿って膜体３↓に配設
した棒状の縁部補強材１１にて膜体３の開口部２周縁・
を補強することにより、膜体３の開口時に生じる亀裂が
この部分で阻止され、さらにタブ７の下部を棒状の縁部
補強材１１で押さえるようにしているために該タブ７が
膜体３から剥れるようなことがなく、しかも膜体３の開
口部２周縁からの液やガスの侵入がここで阻止される結
果、開口部２付近の膜体３の縁部を、止着具４にて固定
する必要がない−０
第４図（ａ）、（ｂ）は本発明に係るコンクリート製ド
ーム屋根開口部の膜体縁部の取付は構造の第４の実施例
を示す断面図および斜視図である第４図（ａ）は開口前
の膜体３の開口部２付近の膜体３上に設けたタブ７をコ
ンクリート中の鉄筋１ａに結束し、さらに膜体３の開口
部２周縁に沿って膜体３上に配設した帯状の縁部補強材
１４にて膜体３の開口部２周縁を補強した状態を示す断
面図である。In this way, the rod-shaped edge reinforcing material 11 disposed on the membrane 3 ↓ along the periphery of the opening 2 of the membrane 3
By reinforcing the membrane body 3, cracks that occur when the membrane body 3 is opened are prevented at this part, and since the lower part of the tab 7 is held down by the rod-shaped edge reinforcing material 11, the tab 7 is prevented from separating from the membrane body 3. This prevents the film from peeling off, and also prevents liquid and gas from entering from the periphery of the opening 2 of the membrane 3, so that the edge of the membrane 3 near the opening 2 can be attached to the fastening tool 4. 4(a) and 4(b) are sectional views and perspective views showing a fourth embodiment of the structure for attaching the membrane edge of the concrete dome roof opening according to the present invention. In FIG. 4(a), the tab 7 provided on the membrane 3 near the opening 2 of the membrane 3 before opening is tied to the reinforcing bars 1a in concrete, and 2 is a sectional view showing a state in which the peripheral edge of the opening 2 of the membrane body 3 is reinforced with a band-shaped edge reinforcing material 14 disposed on the membrane body 3 along the FIG.
第４図（ｂ）は膜体３の開口部２周縁に沿って配設した
タブ７と帯状の縁部補強材１４との位置関係を示す斜視
図である。FIG. 4(b) is a perspective view showing the positional relationship between the tab 7 disposed along the periphery of the opening 2 of the membrane body 3 and the band-shaped edge reinforcing material 14.
第３の実施例と比較して棒状の縁部補強材１１に替えて
帯状の縁部補強材１４とした点が異なるだけである。The only difference from the third embodiment is that a band-shaped edge reinforcement 14 is used instead of the rod-shaped edge reinforcement 11.
膜体３の開口部２周縁のコンクリート側に沿って固着し
た帯状の縁部補強材１４は、その−側から所定間隔を置
いて起立させてタブ７を形成するようにする。The band-shaped edge reinforcing material 14 fixed along the concrete side of the periphery of the opening 2 of the membrane body 3 is erected from the negative side at a predetermined interval to form a tab 7.
この帯状の縁部補強材１４を設けることにより、前記し
た棒状の縁部補強材１１と同様な効果を奏する。第５図
（ａ）、（ｂ）は本発明に係るコンクリート製ドーム屋
根開口部の膜体縁部の取付は構造の第５の実施例を示す
断面図である。By providing this band-shaped edge reinforcing material 14, the same effect as the rod-shaped edge reinforcing material 11 described above can be achieved. FIGS. 5(a) and 5(b) are sectional views showing a fifth embodiment of the structure for attaching the membrane edge of the concrete dome roof opening according to the present invention.
第５図（ａ）は開口前の膜体３の開口部２付近の膜体３
上にその下部を固着し、開口部２の内壁面に当接−させ
て立ち上げ、その上部を開口部２の内壁面に止着具４で
固定してなる開口部被覆層１５の取付は状態を示す断面
図である。FIG. 5(a) shows the membrane body 3 near the opening 2 of the membrane body 3 before opening.
The opening covering layer 15 is attached by fixing its lower part to the top, making it stand up in contact with the inner wall surface of the opening 2, and fixing its upper part to the inner wall surface of the opening 2 with a fixing device 4. It is a sectional view showing a state.
第５図（ｂ）は縁部補強材１５の取付は後に膜体３の開
口部２相当位置を開口した状態を示す断面図である。FIG. 5(b) is a sectional view showing a state in which the edge reinforcing member 15 is installed after the opening 2 of the membrane body 3 is opened.
開口部被覆層１５は膜体３と同一材または異種材が使用
される。また開口部被覆層１５の上部を固定する止着具
４としては例えば、図示の如く押え板５と止め金具６と
により固定する。また開口部被覆層１５は膜体３の開口
部２周縁に沿って連続的に立ち上げるようにするか、あ
るいは不連続的に立ち上げるかのいずれであってもよい
。連続的に立ち上げた場合はシール効果が万全となり、
剥離現象も全くなくなる。さらに、開口部被覆層１５は
膜体３と異なる材料を使用して筒状等の開口部形状に合
致した形状に成形または折曲げ加工等により形成しても
よい。The opening covering layer 15 is made of the same material as the membrane body 3 or a different material. The fastener 4 for fixing the upper part of the opening covering layer 15 is, for example, a holding plate 5 and a fastener 6 as shown in the figure. Further, the opening covering layer 15 may be raised continuously along the periphery of the opening 2 of the membrane body 3, or may be raised discontinuously. If it is started up continuously, the sealing effect will be perfect,
The peeling phenomenon also completely disappears. Furthermore, the opening covering layer 15 may be formed using a material different from that of the membrane body 3 by molding or bending into a shape that matches the shape of the opening, such as a cylinder.
［発明の効果１
本発明は上記の説明から判るように、内側に膜体を張設
したコンクリート製ドーム屋根に開口部を穿設し、その
開口部付近の膜体縁部を押え板と止め金具の止着具にて
固定することにより、該膜体縁部はコンクリート面に固
着し、膜体縁部の剥離が解消される。また貯槽等として
使用中においてもその膜体縁部からガスや液体が侵入す
ることがない。従って開口部を通気孔、換気孔、マンホ
ール等として広く利用することができる。[Effects of the Invention 1] As can be seen from the above description, the present invention consists of making an opening in a concrete dome roof with a membrane stretched on the inside, and fixing the edge of the membrane near the opening with a holding plate. By fixing with the fasteners of the metal fittings, the edge of the membrane is fixed to the concrete surface, and peeling of the edge of the membrane is eliminated. Further, even when the membrane is used as a storage tank, gas or liquid will not enter from the edge of the membrane. Therefore, the opening can be widely used as a ventilation hole, a ventilation hole, a manhole, etc.
また、内側に膜体を張設したコンクリート製ドーム屋根
に穿設した開口部付近の膜体縁部は、コンクリート側の
前記膜体縁部にタブを設け、該タブと開口部周縁に沿っ
て膜体上に配設した縁部補強材を一体に結合し、該縁部
補強材と一体に結合した前記タブとコンクリート中の鉄
筋の両者を結束固定したので、該棒状または帯状の縁部
補強材によって開口部周縁の膜体がさらに強固に補強さ
れ、亀裂防止、剥離防止およびガスや液体の侵入防止が
一層強化されることとなる。In addition, at the edge of the membrane near the opening drilled in the concrete dome roof with the membrane stretched on the inside, a tab is provided on the edge of the membrane on the concrete side, and a tab is provided along the tab and the periphery of the opening. The edge reinforcing material disposed on the membrane body is integrally bonded, and both the tab, which is integrally bonded to the edge reinforcing material, and the reinforcing bars in the concrete are tied and fixed, so that the edge reinforcement of the bar or band shape is achieved. The membrane at the periphery of the opening is further reinforced by the material, and the prevention of cracking, peeling, and intrusion of gas and liquid is further strengthened.
そして、内側に膜体を張設したコンクリート製ドーム屋
根に穿設した開口部付近の膜体縁部は、開口部の下部周
縁から開口部の内壁面に向けて当接する開口部被覆層を
設けたことにより、剥離現象が完全に解消され、シール
効果も高まりガスや液の侵入が皆無となり、かつ開口部
の防食効果が発揮される。Then, the edge of the membrane near the opening drilled in the concrete dome roof with the membrane stretched on the inside is provided with an opening coating layer that contacts from the lower periphery of the opening toward the inner wall surface of the opening. As a result, the peeling phenomenon is completely eliminated, the sealing effect is enhanced, there is no intrusion of gas or liquid, and the corrosion prevention effect of the opening is exhibited.
第１図（ａ）〜（ｃ）は本発明の一実施例を示すコンク
リート製ドーム屋根開口部の形成とその膜体縁部の取付
は工程を示す断面図、第２図（ａ）〜（ｄ）は本発明に
係るコンクリート製ドーム屋根開口部の膜体縁部の取付
は構造の第２の実施例を示す断面図および斜視図、第３
図（ａ）〜（Ｃ）は本発明に係るコンクリート製ドーム
屋根開口部の膜体縁部の取付は構造の第３の実施例を示
す断面図および斜視図、第４図（ａ）、（ｂ）は本発明
に係るコンクリート製ドーム屋根開口部の膜体縁部の取
付は構造の第４の実施例を示す断面図および斜視図、第
５図（ａ）、（ｂ）は本発明に係るコンクリート製ドー
ム屋根開口部の膜体縁部の取付は構造の第５の実施例を
示す断面図である。
１・・・・・・コンクリート製ドーム屋根、１ａ・・・
・・・鉄筋、 ２・・・・・・開口部、３・・・
・・・膜体、 ３ａ・・・・・・膜体縁部、４
・・・・・・止着具、 ５・・・・・・押え板、６
・・・・・・止め金具、 ７・・・・・・タブ、８
・・・・・・結束線、
ＩＩ・・・・・・棒状の縁部補強材、
１４・・・・・・帯状の縁部補強材、
１５・・・・・・開口部被覆層。
第１ 図（ａ ）
ろ
第１図（ｂ）
−Ａ’）１ −
第１図（Ｃ）
第２図（ａ）
第２図（Ｃ）
第３図（ａ ）
第３図（Ｃ）
第４図（ａ）
第４図（ｂ）
第５図（Ｆ）
う
第５図（ｂ）FIGS. 1(a) to (c) are cross-sectional views showing the process of forming a concrete dome roof opening and attaching the membrane edge, showing one embodiment of the present invention, and FIGS. 2(a) to (c) d) is a sectional view and a perspective view showing the second embodiment of the structure for mounting the membrane edge of the concrete dome roof opening according to the present invention;
Figures (a) to (C) are cross-sectional and perspective views showing a third embodiment of the structure for attaching the membrane edge of a concrete dome roof opening according to the present invention; b) is a cross-sectional view and a perspective view showing a fourth embodiment of the structure for attaching the membrane edge of the concrete dome roof opening according to the present invention, and FIGS. 5(a) and (b) are according to the present invention. The attachment of the membrane edge of the concrete dome roof opening is a sectional view showing a fifth embodiment of the structure. 1...Concrete dome roof, 1a...
...Reinforcing bar, 2...Opening, 3...
...Membrane body, 3a...Membrane body edge, 4
...Fixing tool, 5...Pressure plate, 6
...Fixing metal fitting, 7...Tab, 8
... Binding wire, II ... Bar-shaped edge reinforcing material, 14 ... Band-shaped edge reinforcing material, 15 ... Opening part covering layer. Figure 1 (a) Figure 1 (b) -A') 1 - Figure 1 (C) Figure 2 (a) Figure 2 (C) Figure 3 (a) Figure 3 (C) Figure 4 (a) Figure 4 (b) Figure 5 (F) Figure 5 (b)
Claims (3)
に開口部を穿設し、該開口部付近の膜体縁部を押え板と
止め金具の止着具にて固定したことを特徴とするコンク
リート製ドーム屋根開口部の膜体縁部の取付け構造。(1) An opening is bored in the concrete dome roof with a membrane stretched on the inside, and the edge of the membrane near the opening is fixed with a retaining plate and a fastener. Mounting structure for the membrane edge of the concrete dome roof opening.
に穿設した開口部付近の膜体縁部は、コンクリート側の
前記膜体縁部にタブを設け、該タブと開口部周縁に沿っ
て膜体上に配設した縁部補強材を一体に結合し、該縁部
補強材と一体に結合した前記タブとコンクリート中の鉄
筋の両者を結束固定したことを特徴とするコンクリート
製ドーム屋根開口部の膜体縁部の取付け構造。(2) At the edge of the membrane near the opening drilled in a concrete dome roof with a membrane stretched on the inside, a tab is provided on the edge of the membrane on the concrete side, and a tab is attached to the edge of the membrane on the concrete side. A concrete dome roof characterized in that an edge reinforcing material disposed on a membrane body is integrally bonded to the edge reinforcing material, and both the tab integrally bonded to the edge reinforcing material and reinforcing bars in the concrete are bound and fixed. Mounting structure for the membrane edge of the opening.
に穿設した開口部付近の膜体縁部は、開口部の下部周縁
から開口部の内壁面に向けて当接する開口部被覆層を設
けたことを特徴とするコンクリート製ドーム屋根開口部
の膜体縁部の取付け構造。(3) The edge of the membrane near the opening drilled in the concrete dome roof with the membrane stretched on the inside is covered with an opening covering layer that abuts from the lower periphery of the opening toward the inner wall surface of the opening. A structure for attaching a membrane edge of a concrete dome roof opening, characterized by the following:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32945390A JP2913338B2 (en) | 1990-11-30 | 1990-11-30 | Mounting structure for the edge of the membrane at the opening of the concrete dome roof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32945390A JP2913338B2 (en) | 1990-11-30 | 1990-11-30 | Mounting structure for the edge of the membrane at the opening of the concrete dome roof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04202977A true JPH04202977A (en) | 1992-07-23 |
| JP2913338B2 JP2913338B2 (en) | 1999-06-28 |
Family
ID=18221548
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP32945390A Expired - Lifetime JP2913338B2 (en) | 1990-11-30 | 1990-11-30 | Mounting structure for the edge of the membrane at the opening of the concrete dome roof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2913338B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011219924A (en) * | 2010-04-05 | 2011-11-04 | Ishii Iron Works Co Ltd | Arrangement structure of tabs and round bars onto flexible membrane in air dome construction method |
-
1990
- 1990-11-30 JP JP32945390A patent/JP2913338B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011219924A (en) * | 2010-04-05 | 2011-11-04 | Ishii Iron Works Co Ltd | Arrangement structure of tabs and round bars onto flexible membrane in air dome construction method |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2913338B2 (en) | 1999-06-28 |
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