JP2552874Y2 - Large storage tank - Google Patents
Large storage tankInfo
- Publication number
- JP2552874Y2 JP2552874Y2 JP4662693U JP4662693U JP2552874Y2 JP 2552874 Y2 JP2552874 Y2 JP 2552874Y2 JP 4662693 U JP4662693 U JP 4662693U JP 4662693 U JP4662693 U JP 4662693U JP 2552874 Y2 JP2552874 Y2 JP 2552874Y2
- Authority
- JP
- Japan
- Prior art keywords
- work
- roof
- storage tank
- scaffold
- work scaffold
- 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 - Fee Related
Links
Landscapes
- Movable Scaffolding (AREA)
Description
【0001】[0001]
【産業上の利用分野】本考案は、貯槽屋根の内面に吊架
付設される作業用足場を改善した地下式貯槽などの大型
貯槽に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a large storage tank such as an underground storage tank with an improved work scaffold suspended from the inside of a storage tank roof.
【0002】[0002]
【従来の技術】従来、屋根を鋼材によって形成したLN
G地下式貯槽などにおいては、屋根の内面に保冷材を張
設する。この保冷材の付設作業,保冷材の付設が正しく
行われているかどうか、または、保冷材に損傷があるか
どうかなどの検査,メンテナンスを行うため、屋根の内
面に旋回回動可能な作業用足場が架設されていた。この
作業用足場は屋根の半径に相当する長さからなり、その
一端は屋根中心に設けたマンホールなどの構造物に支持
され、また、他端がタンク躯体上縁部に支持された放射
状構造であって、マンホール部を中心として旋回回動し
ながら保冷材付設作業,検査,メンテナンスなどの作業
を行っていた。(例えば、実開昭63−94253号公
報参照)2. Description of the Related Art Conventionally, an LN in which a roof is formed of a steel material.
G In underground storage tanks, etc., a cold insulator is installed on the inner surface of the roof. A work platform that can be swiveled and rotated on the inner surface of the roof to perform inspections and maintenance such as whether the work of attaching the cold insulator and the attachment of the cold insulator are correct, or whether the cold insulator is damaged. Had been erected. This work scaffold has a length equivalent to the radius of the roof, one end of which is supported by a structure such as a manhole provided at the center of the roof, and the other end has a radial structure supported by the upper edge of the tank body. In addition, while rotating around the manhole part, work such as installation of a cold insulator, inspection, and maintenance were performed. (See, for example, Japanese Utility Model Application Laid-Open No. 63-94253)
【0003】[0003]
【考案が解決しようとする課題】前述したような作業用
足場においては、屋根中心部と外周部とでは作業面積に
著しい差が生じ、中心部では作業が完了しても周辺部で
は未だ作業中というように作業量にアンバランスがあ
り、作業効率を阻害するという課題がある。また、この
ような作業用足場の数を増やすにしても限度があり、た
とえ数を増やしても作業量のアンバランスは周辺に至る
に従い更に増大するという不都合が生ずる。[Problems to be Solved by the Invention] In the work scaffolds as described above, a significant difference occurs in the work area between the center portion of the roof and the outer peripheral portion. Even if the work is completed in the center portion, the work is still performed in the peripheral portion. Thus, there is a problem that the work amount is unbalanced and the work efficiency is hindered. In addition, there is a limit even if the number of such work scaffolds is increased, and even if the number is increased, the unbalance of the work amount increases further toward the periphery.
【0004】本考案の目的は、屋根内面に対する諸作業
量を全域にわたって均等割りつけし、更に保冷材ならび
にメンブレン付設作業は、付設作業架台を使用すること
で作業効率の向上と工期の短縮化を合理的に図らんとす
るものである。[0004] The purpose of the present invention is to distribute the amount of work on the inner surface of the roof evenly over the entire area, and to improve the work efficiency and shorten the construction period by using an attached work stand for the work of attaching the cooling material and the membrane. It is a reasonable attempt.
【0005】[0005]
【課題を解決するための手段】従来技術の課題を解決す
る本考案の構成は、屋根の内側に、該屋根の中心部から
半径方向に延びた作業用足場を旋回回動可能に配設した
大型貯槽であって、前記屋根の内側略全域にわたって2
条一組からなる複数組のレールを同心円状に配設し、こ
の各組のレールに夫々作業用足場を吊架するとともに、
中央部から外周部に至るに従い前記作業用足場の数を多
くしたこと、および、前記作業用足場上に、保冷材やメ
ンブレンなどの付設作業架台を移動可能に乗載したもの
である。According to the structure of the present invention, which solves the problems of the prior art, a work scaffold extending in the radial direction from the center of the roof is rotatably arranged inside the roof. A large storage tank that covers almost the entire area inside the roof;
A plurality of sets of rails consisting of one set are arranged concentrically, and a work scaffold is suspended on each set of rails,
The number of the work scaffolds is increased from the center to the outer periphery, and an additional work base such as a cold insulator or a membrane is movably mounted on the work scaffold.
【0006】[0006]
【作用】同心円状に配設された複数組のレール上にそっ
て旋回回動する作業用足場により、屋根内面に対する諸
作業が各別に行われる。屋根の外周辺に至るに従って作
業用足場の数が増大されるため、1台当りの作業面積が
均等化されるとともに、屋根内面全域の作業進行が各作
業用足場ごとに任意に行える。また、付設作業架台を作
業用足場上に配置することにより、屋根内面への保冷材
ならびにメンブレンの付設作業を省人化することが可能
である。According to the present invention, various works on the inner surface of the roof are performed separately by a work scaffold that turns and rotates along a plurality of sets of rails arranged concentrically. Since the number of work scaffolds is increased toward the outer periphery of the roof, the work area per vehicle is equalized, and work on the entire inner surface of the roof can be arbitrarily performed for each work scaffold. Further, by arranging the attached work base on the work scaffold, it is possible to save labor for attaching the cold insulator and the membrane to the inner surface of the roof.
【0007】[0007]
【実施例】次に、図面について本考案実施例の詳細を説
明する。図1は縦断正面図、図2は各組レールに吊架さ
れる作業用足場の配置例を示す平面図、図3は作業用足
場の吊架構造を示す要部の一部切欠正面図、図4は作業
足場上での付設作業架台を用いたメンブレン付設作業状
況の斜視図、図5は図4の断面図である。BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a longitudinal sectional front view, FIG. 2 is a plan view showing an example of the arrangement of a work scaffold suspended on each set rail, FIG. 3 is a partially cutaway front view of a main part showing a suspended structure of the work scaffold, FIG. 4 is a perspective view of a state of a membrane attaching operation using an attaching work stand on a work scaffold, and FIG. 5 is a sectional view of FIG.
【0008】図1について大型貯槽の構成を説明する。
図で示すAは、直径が50〜70mからなる大径のLN
G地下式貯槽で、該貯槽Aの屋根1は内部に鉄筋(図示
略)を配設埋入したコンクリート構造によって構成され
ている。そして当然のことながら、前記屋根1の内面に
は図3で示すように、この全域にわたって保冷材2が付
設され、更にその内面にはアンカー3に支持されたメン
ブレン4が張設されている。また、特に図示してない
が、前記貯槽Aを構成するコンクリート躯体5の内面、
および、コンクリート底版6の上面にも保冷材を付設
し、更にその内面にメンブレンが液密的に張設されてい
る。このように構成された貯槽Aに対してこの実施例
は、前記屋根1に、保冷材2を介して張設されるメンブ
レン4を取りつけるためのアンカー3が存在することに
着目し、このアンカー3を利用して後述する作業用足場
の吊架用レールを付設すること、および、屋根1の内側
全域に作業量が均等に割りづけされた作業用足場を吊架
したものである。Referring to FIG. 1, the configuration of a large storage tank will be described.
A shown in the figure is a large-diameter LN having a diameter of 50 to 70 m.
In the G underground storage tank, the roof 1 of the storage tank A has a concrete structure in which a reinforcing bar (not shown) is disposed and embedded. As a matter of course, as shown in FIG. 3, a cooling material 2 is provided on the entire inner surface of the roof 1, and a membrane 4 supported by the anchor 3 is stretched on the inner surface. Although not specifically shown, the inner surface of the concrete skeleton 5 constituting the storage tank A,
In addition, a cooling material is also provided on the upper surface of the concrete bottom slab 6, and a membrane is liquid-tightly stretched on the inner surface thereof. With respect to the storage tank A configured in this manner, this embodiment focuses on the fact that an anchor 3 for attaching a membrane 4 stretched through the cold insulator 2 to the roof 1 exists. A work scaffold, which will be described later, is additionally provided with a work scaffold suspension rail, and a work scaffold having a work amount equally distributed over the entire area inside the roof 1.
【0009】図1,図2に示すように、前記屋根1の内
側略全域に、2条一組からなる複数組のレール7を同心
円状に架設し、この各組のレール7に平面形状が長方形
状で、かつ、その長手軸線方向が屋根1の半径方向にそ
った作業用足場Bの両端四隅部を吊架する。また、図2
から明らかなように、中央部から外周部に至るに従い前
記作業用足場Bの数を多くし、各レールにおける作業用
足場Bによる作業量を略均等割りづけしたものである。
例えば図2のように、尾根1の全域を同心円状に中央
部,中間部,外周部の作業ゾーンa,b,cに分割し、
作業ゾーンaには2台の作業用足場Bを,作業ゾーンb
には4台の作業用足場Bを、作業ゾーンCには6台の作
業用足場Bを吊架配設することにより、各作業ゾーン
a,b,cにおける作業用足場Bの作業量は略均等化さ
れる。As shown in FIGS. 1 and 2, a plurality of sets of two rails 7 are concentrically provided around substantially the entire area inside the roof 1, and each set of rails 7 has a planar shape. The four corners at both ends of the work scaffold B, which is rectangular and whose longitudinal axis is along the radial direction of the roof 1, are suspended. FIG.
As is clear from FIG. 7, the number of the work scaffolds B is increased from the central portion to the outer peripheral portion, and the work amounts of the work scaffolds B on the respective rails are allocated substantially equally.
For example, as shown in FIG. 2, the entire area of the ridge 1 is concentrically divided into working zones a, b, and c of a central portion, an intermediate portion, and an outer peripheral portion.
In work zone a, two work scaffolds B are attached, and work zone b
, Four work scaffolds B are suspended in the work zone C, and six work scaffolds B are suspended in the work zone C, so that the work amount of the work scaffold B in each of the work zones a, b, c is substantially reduced. Equalized.
【0010】次に、図3について前記レール7の架設手
段について説明する。前記アンカー3はコンクリート構
造の屋根1の内面に埋入固設されている。アンカー3は
複数本のボルトによって構成され、アンカープレート8
を屋根1の内面に支持している。このアンカープレート
8には下部にボルト9を螺合する支持部材10が溶接し
てあり、この支持部材10に螺合される前記ボルト9に
よってメンブレン4の中央部が支持される。前述したよ
うに、メンブレン4を取りつけるためのアンカー3を利
用して前記作業用足場Bを吊架するレール7を付設する
ようにしたことから、図で示すように前記支持部材10
に前記ボルト9にて連結部材11を結合止着する。この
連結部材11はレール7に固着せしめられ、屋根1を中
心とした同心円状に前記レール7は付設される。レール
7はI型鋼構造であって、これの下辺両側には、チャン
ネル構造をした連結体12に設けた転輪13を乗載支持
する。この連結体12には前記作業用足場Bの四隅部に
垂設された柱杆14が固定してある。図3はその一部し
か示してないが、この図示構成が作業用足場Bの四隅部
に設けてあり、この作業用足場Bは平行する2条のレー
ル7間に走行可能に吊架される。また、前記レール7に
対する作業用足場Bの走行手段としては、作業者による
手作業,前記転輪13の軸にとりつけた滑車機構(図示
略)の操作による手段などが採用される。そして、前記
作業ゾーンa,b,cに配設された作業用足場が同一半
径方向に直列になった場合、各作業用足場Bを連結可能
とするとともに、中央部の作業用足場Bを屋根1の中心
に設けたマンホール15と連通させ、作業者が作業開
始,作業終了時に出入しうるようにしたものである。Next, the means for erection of the rail 7 will be described with reference to FIG. The anchor 3 is embedded and fixed on the inner surface of the roof 1 having a concrete structure. The anchor 3 is composed of a plurality of bolts, and an anchor plate 8
Is supported on the inner surface of the roof 1. A support member 10 for screwing a bolt 9 is welded to a lower portion of the anchor plate 8, and a central portion of the membrane 4 is supported by the bolt 9 screwed to the support member 10. As described above, since the rail 7 for suspending the work scaffold B is provided using the anchor 3 for attaching the membrane 4, the support member 10 is provided as shown in the drawing.
Then, the connecting member 11 is joined and fastened with the bolt 9. The connecting member 11 is fixed to the rail 7, and the rail 7 is attached concentrically around the roof 1. The rail 7 has an I-shaped steel structure, and on both lower sides thereof, a rolling wheel 13 provided on a connecting body 12 having a channel structure is mounted and supported. The connecting rods 12 are fixed with pillars 14 vertically extending from the four corners of the work scaffold B. FIG. 3 shows only a part thereof, but this configuration is provided at the four corners of the work scaffold B, and the work scaffold B is suspended between two parallel rails 7 so as to be able to travel. . As means for traveling the work scaffold B with respect to the rail 7, means by manual operation by an operator, means by operation of a pulley mechanism (not shown) attached to the shaft of the wheel 13, and the like are employed. When the work scaffolds arranged in the work zones a, b, and c are arranged in series in the same radial direction, the work scaffolds B can be connected, and the work scaffold B in the central portion can be roofed. 1 is connected to a manhole 15 provided at the center of the work 1 so that a worker can enter and exit at the start and end of work.
【0011】図4,図5について屋根保冷材ならびにメ
ンブレンの付設作業架台について説明すると、前記作業
用足場Bに半径方向に直線上に2条1組からなるレール
17を架設し、レール17に沿って移動可能な付設作業
架台16に備えつけられたジャッキ18によってメンブ
レン4を付設する。また、特に図示していないが、保冷
材2も同様に付設するものである。但し、メンブレン4
ならびに保冷材2は付設位置によって形状が異なるた
め、特に図示していないが、ジャッキ18は任意に位置
を変更できるものである。また、他の作業ゾーンに配置
された作業用足場に付設作業架台を移動させる場合は前
述のように作業用足場が同一半径方向に直列になった場
合に各作業用足場を連結させ、同様にレール17も他の
作業用足場のレールと連結させることにより、付設作業
架台が移動しうる様にしたものである。尚、この付設作
業架台16には他の支援設備を搭載することもある。Referring to FIGS. 4 and 5, a work stand for attaching a roof insulation material and a membrane will be described. A pair of rails 17 are installed on the work scaffold B in a straight line in the radial direction, and the rails 17 are extended along the rails 17. The membrane 4 is attached by a jack 18 provided on the attached work base 16 which is movable. Although not particularly shown, the cold insulator 2 is similarly attached. However, membrane 4
In addition, since the shape of the cold insulator 2 differs depending on the attachment position, the position of the jack 18 can be arbitrarily changed, although not particularly shown. In addition, when moving the attached work platform to a work scaffold arranged in another work zone, as described above, when the work scaffolds are arranged in series in the same radial direction, each work scaffold is connected, and similarly, The rail 17 is also connected to the rail of another work scaffold so that the attached work base can move. In addition, other supporting equipment may be mounted on the attached work base 16.
【0012】前述した実施例において、屋根1をコンク
リート構造としたが、鋼材による屋根であっても同様な
効果が得られることから、図示実施例のものに特定され
ることはない。また、レール7を架設する支持手段とし
てメンブレン4,支持用のアンカー3を利用することに
ついて述べたが、他の手段でも可能であるので、実施例
の構成に特定されるものでない。In the above-described embodiment, the roof 1 is made of a concrete structure. However, even if the roof is made of a steel material, similar effects can be obtained. In addition, the use of the membrane 4 and the support anchor 3 as support means for erection of the rail 7 has been described, but other means are also possible, and are not limited to the configuration of the embodiment.
【0013】[0013]
【考案の効果】上述のように本考案の構成によれば、次
のような効果が得られる。 (a)屋根の内側に複数組のレールを同心円状に配設
し、この各レールに夫々作業用足場を旋回回動可能に吊
架したことにより、夫々の作業用足場が独立して屋根内
面に対する諸作業をすることができ、作業効率の向上が
図れる。 (b)中央部から外周部に至るに従い作業用足場の数を
多くしたので、各作業用足場当りの作業面積が均等化す
ることができ、作業効率の向上と工期の短縮化が合理的
になしうる。 (c)保冷材ならびにメンブレン付設作業を、付設作業
架台を使用することにより作業を省人化することが可能
で、作業効率の向上と工期の短縮が合理的になしうる。According to the configuration of the present invention as described above, the following effects can be obtained. (A) A plurality of sets of rails are arranged concentrically inside the roof, and work scaffolds are suspended on each of the rails so as to be pivotable, so that each work scaffold is independently provided on the inner surface of the roof. And various operations can be performed, thereby improving the operation efficiency. (B) Since the number of work scaffolds is increased from the center to the outer periphery, the work area per work scaffold can be equalized, thereby improving work efficiency and shortening the construction period. I can do it. (C) It is possible to reduce labor required for the work of attaching the cold insulator and the membrane by using the attached work stand, and it is possible to rationally improve the work efficiency and shorten the construction period.
【図1】縦断正面図である。FIG. 1 is a vertical sectional front view.
【図2】各組レールに吊架される作業用足場の配置例を
示す平面図である。FIG. 2 is a plan view showing an example of an arrangement of a work scaffold suspended from each set rail.
【図3】作業用足場の吊架構造を示す要部の一部切欠正
面図である。FIG. 3 is a partially cutaway front view of a main part showing a suspension structure of a work scaffold.
【図4】作業足場上での付設作業架台を用いたメンブレ
ン付設作業状況の斜視図である。FIG. 4 is a perspective view of a state of a membrane attaching operation using an attaching work stand on a work scaffold.
【図5】作業足場上での付設作業架台を用いたメンブレ
ン付設作業状況の断面図である。FIG. 5 is a cross-sectional view of a state of a membrane attaching operation using an attaching work stand on a work scaffold.
A 貯槽 B 作業用足場 1 屋根 2 保冷材 3 アンカー 4 メンブレン 7 レール 8 アンカープレート 9 ボルト 10 支持部材 11 連結部材 12 連結体 13 転輪 14 柱杆 15 マンホール 16 付設作業架台 17 レール 18 ジャッキ Reference Signs List A Storage tank B Work scaffold 1 Roof 2 Cooling material 3 Anchor 4 Membrane 7 Rail 8 Anchor plate 9 Bolt 10 Support member 11 Connecting member 12 Connected body 13 Roller wheel 14 Pillar rod 15 Manhole 16 Attached work stand 17 Rail 18 Jack
───────────────────────────────────────────────────── フロントページの続き (72)考案者 後藤 智巳 千葉県野田市二ツ塚118番地 川崎重工 業株式会社 野田工場内 (72)考案者 山崎 将史 千葉県野田市二ツ塚118番地 川崎重工 業株式会社 野田工場内 (72)考案者 田實 修 千葉県野田市二ツ塚118番地 川崎重工 業株式会社 野田工場内 (72)考案者 大井 幸治 千葉県野田市二ツ塚118番地 川崎重工 業株式会社 野田工場内 (56)参考文献 特開 昭54−113512(JP,A) ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Tomomi Goto 118 Futatsuka Noda-shi, Chiba Kawasaki Heavy Industries, Ltd. Noda Plant (72) Inventor Masashi Yamazaki 118 Futatsuka, Noda-shi, Chiba Kawasaki Heavy Industries, Ltd. Inside the factory (72) Inventor Osamu Tami Minami 118 Notsuka, Noda City, Chiba Prefecture Inside the Noda Plant of Kawasaki Heavy Industries, Ltd. References JP-A-54-113512 (JP, A)
Claims (2)
方向に延びた作業用足場を旋回回動可能に配設した大型
貯槽であって、前記屋根の内側略全域にわたって2条一
組からなる複数組のレールを同心円状に配設し、この各
組のレールに夫々作業用足場を吊架するとともに、中央
部から外周部に至るに従い前記作業用足場の数を多くし
たことを特徴とする大型貯槽。1. A large storage tank in which a work scaffold extending in a radial direction from a center portion of a roof is rotatably arranged inside a roof, and a set of two strips is provided over substantially the entire area inside the roof. A plurality of sets of rails are concentrically arranged, and a work scaffold is suspended on each set of rails, and the number of the work scaffolds is increased from a central portion to an outer peripheral portion. Large storage tank.
ンなどの付設作業架台を移動可能に乗載したことを特徴
とする請求項1記載の大型貯槽。2. The large storage tank according to claim 1, wherein an additional work base such as a heat insulating material or a membrane is movably mounted on the work scaffold.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4662693U JP2552874Y2 (en) | 1993-08-03 | 1993-08-03 | Large storage tank |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4662693U JP2552874Y2 (en) | 1993-08-03 | 1993-08-03 | Large storage tank |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH0711645U JPH0711645U (en) | 1995-02-21 |
JP2552874Y2 true JP2552874Y2 (en) | 1997-10-29 |
Family
ID=12752508
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4662693U Expired - Fee Related JP2552874Y2 (en) | 1993-08-03 | 1993-08-03 | Large storage tank |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2552874Y2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2011231511A (en) * | 2010-04-27 | 2011-11-17 | Taisei Corp | Scaffold structure |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101998877B1 (en) * | 2018-11-05 | 2019-10-01 | 래피드컴 주식회사 | Prefabricated Catwalk and Installation Method Thereof |
CN113733021B (en) * | 2021-08-30 | 2023-05-09 | 上海卫星工程研究所 | Sinking type tool of nested propulsion system and construction method thereof |
-
1993
- 1993-08-03 JP JP4662693U patent/JP2552874Y2/en not_active Expired - Fee Related
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2011231511A (en) * | 2010-04-27 | 2011-11-17 | Taisei Corp | Scaffold structure |
Also Published As
Publication number | Publication date |
---|---|
JPH0711645U (en) | 1995-02-21 |
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