JPH0270862A - Construction method for steel plate-lined cylindrical reinforced concrete structures - Google Patents
Construction method for steel plate-lined cylindrical reinforced concrete structuresInfo
- Publication number
- JPH0270862A JPH0270862A JP22123088A JP22123088A JPH0270862A JP H0270862 A JPH0270862 A JP H0270862A JP 22123088 A JP22123088 A JP 22123088A JP 22123088 A JP22123088 A JP 22123088A JP H0270862 A JPH0270862 A JP H0270862A
- Authority
- JP
- Japan
- Prior art keywords
- steel plate
- yoke
- reinforced concrete
- outer formwork
- formwork
- 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
- 229910000831 Steel Inorganic materials 0.000 title claims description 49
- 239000010959 steel Substances 0.000 title claims description 49
- 238000010276 construction Methods 0.000 title claims description 15
- 239000011150 reinforced concrete Substances 0.000 title claims description 15
- 238000009415 formwork Methods 0.000 claims description 44
- 239000004567 concrete Substances 0.000 claims description 28
- 239000000463 material Substances 0.000 claims description 20
- 238000000034 method Methods 0.000 claims description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 230000003014 reinforcing effect Effects 0.000 description 3
- 239000002893 slag Substances 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Landscapes
- Movable Scaffolding (AREA)
- Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明はサイロ、煙突、給水塔等で、鋼板を内貼りした
筒状鉄筋コンクリート構造物の施工法に係るものである
。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a method of constructing a cylindrical reinforced concrete structure, such as a silo, a chimney, or a water tower, which is lined with steel plates.
（従来の技術）
従来、この種の施工法においては第１１図に示すように
、ジャンプアップ用油圧ジヤツキ（ａ）を装架した頂部
水平枠（ｂ）の両端より内外−双のヨーり材（ｃ）を垂
設してなる門型ヨークを所定位置に配設し、前記ジヤツ
キ（ａ）を作動して筒状の躯体コンクリート （ｃｌ）
に埋設されたロッド（ｅ）に反力をとって、前記ヨーク
材（ｃ）に装架された内外足場（ｆ） （ｇ）及び外型
枠（ｈ）を扛上させ、同外型枠（ｈ）と、下段の内張り
鋼板（ｉ）上に吊込まれて同ｆ！ｌ仮（ｉ）の上端縁に
溶接された上段の内張り鋼板（ｉ′）との間に躯体コン
クリートを打設し、以下前記同様の工程を繰返して鋼板
内張り筒状鉄筋コンクリート構造物を施工している。(Prior Art) Conventionally, in this type of construction method, as shown in Fig. 11, twin yaw members are installed inside and outside from both ends of the top horizontal frame (b) on which the jump-up hydraulic jack (a) is mounted. (c) is installed in a predetermined position, and the jack (a) is operated to form a cylindrical concrete frame (cl).
The rod (e) embedded in the rod (e) takes up a reaction force to lift up the inner and outer scaffolds (f) (g) and the outer formwork (h) mounted on the yoke material (c), and removes the same outer formwork. (h) and the same f! suspended above the lower lining steel plate (i)! Concrete is placed between the upper lining steel plate (i') welded to the upper edge of temporary (i), and the same process as above is repeated to construct a steel plate lining cylindrical reinforced concrete structure. There is.
図中（ｊ） （ｋ）は内外の吊足場である。In the figure, (j) and (k) are the internal and external hanging scaffolds.
なおこの際における力の釣合いは第１２図に示すとおり
である。Note that the balance of forces at this time is as shown in FIG.
（発明が解決しようとする課題）
前記従来の施工法は、−ＦＧの鉄筋コンクリート造のサ
イロ、煙突等の構築に適用されているが、内張り鉄板を
取付けるサイロ工法等に採用する場合、サイロ躯体内に
臨む凹型ヨークにおける内側のヨーク材が内張り鉄板の
吊込み時に邪魔になり、作業性が極めてよくない。(Problems to be Solved by the Invention) The above-mentioned conventional construction method is applied to the construction of reinforced concrete silos, chimneys, etc. of -FG, but when it is adopted for the silo construction method etc. in which inner lining iron plates are attached, The inner yoke material of the concave yoke facing the wall gets in the way when the lining iron plate is hung, making workability extremely difficult.
本発明は前記従来技術の有する問題点に鑑みて提案され
たもので、その目的とする処は、施工時における構造物
内部の作業性が向上された鋼板内張り筒状鉄筋コンクリ
ート構造物の施工法を提供する点にある。The present invention has been proposed in view of the problems of the prior art, and its purpose is to provide a method for constructing a steel plate-lined cylindrical reinforced concrete structure that improves workability inside the structure during construction. It is in the point of providing.
（課題を解決するための手段）
前記の目的を達成するため、本発明に係る鋼板内張り鉄
筋コンクリート構造物の施工法は、ジャンプアップ用油
圧ジヤツキを装架した頂部水平枠の外側端から外側ヨー
ク材を垂設してなる片持ヨークを所定位置に配置し、同
片持ヨークより懸吊された外型枠と、内張り鋼板との間
に打設された躯体コンクリートが固化したのち、上段の
内張り鋼板を吊込んで前記内張り鋼板に溶接し、次いで
前記油圧ジヤツキを作動してコンクリート躯体に埋設さ
れたロッドに反力をとって前記片持ヨークを前記外型枠
とともに所定高さ扛上したのち、同外型枠と前記上段の
内張り鋼板との間に躯体コンクリートを打設し、以下前
記の工程を繰返すように構成されている。(Means for Solving the Problems) In order to achieve the above-mentioned object, the construction method of the steel plate-lined reinforced concrete structure according to the present invention is such that the outer yoke material is A cantilevered yoke consisting of a vertically suspended yoke is placed in a predetermined position, and after the frame concrete poured between the outer formwork suspended from the cantilevered yoke and the lining steel plate has solidified, the upper lining is A steel plate is suspended and welded to the lining steel plate, and then the hydraulic jack is operated to take a reaction force to the rod embedded in the concrete frame and the cantilever yoke is lifted up to a predetermined height together with the outer formwork. , concrete is placed between the outer formwork and the upper lining steel plate, and the above steps are repeated.
この際、前記外側型枠の取付は、内部型枠を構成する内
張り鋼板を利用し、前記外型枠の下端部は前記内張り鋼
板に溶着されたインサートボルトを介してＩｉ’ｒｌ定
するとともに、上端部は、前記内張り′ＰＡ板の内側面
及び前記外型枠の外側面に夫々配設された内外両縦端大
材を緊□結するハイテンシコンボルトを介して固定する
ものである。At this time, the outer formwork is installed using a lining steel plate that constitutes the inner formwork, and the lower end of the outer formwork is fixed to Ii'rl via an insert bolt welded to the lining steel plate, and The upper end portion is fixed via a high-tensile bolt that fastens both the inner and outer vertical end members provided on the inner surface of the lining PA board and the outer surface of the outer formwork, respectively.
更に前記外型枠の上部に、クッション材を内蔵した目地
棒を、前記外型枠に着脱自在に装着された目地棒取付金
具を介して前記クッション材が外型枠の内側面に圧着す
るように取付けて、コンクリート打設後の浮き水、及び
ノロ等の流出を防止し、コンクリート表面の仕上り面の
美観が保たれるようにするものである。Furthermore, a joint bar containing a built-in cushioning material is placed on the upper part of the outer formwork so that the cushioning material is crimped to the inner surface of the outer formwork through a jointer attachment fitting that is detachably attached to the outer formwork. The concrete is installed to prevent floating water and slag from flowing out after concrete is poured, and to maintain the aesthetic appearance of the finished concrete surface.
（作用）
本発明によればヨークを構成するのに当り、ジャンプア
ップ用油圧ジヤツキを装架した頂部水平枠の内側端には
従来のように内側ヨーク材を配設することなく、外側端
からのみ外側ヨーク材を垂設することによって片持ちヨ
ークを構成し、同片持ヨークを所定位置に配置し、同片
持ヨークより懸吊された外型枠と内張り鋼板との間に打
設された躯体コンクリートが固化したのち、躯体内に上
段の内張り鋼板を吊込んで前記内張り鋼板の上段に？８
接する。(Function) According to the present invention, when configuring the yoke, the top horizontal frame on which the jump-up hydraulic jack is mounted is not provided with an inner yoke material at the inner end, but from the outer end. A cantilevered yoke is constructed by vertically suspending the outer yoke material, and the cantilevered yoke is placed in a predetermined position and is cast between the outer formwork suspended from the cantilevered yoke and the lining steel plate. After the concrete frame has solidified, the upper lining steel plate is suspended inside the frame and placed above the lining steel plate. 8
come into contact with
この際、前記ヨークは片持ちヨークに構成されていて、
内張りヨーク材がないので、前記上段の内張り鋼板の吊
込み及び溶接作業が簡単に行なわれる。At this time, the yoke is configured as a cantilevered yoke,
Since there is no lining yoke material, the lifting and welding work of the upper tier lining steel plate is easily performed.
この後、前記油圧ジヤツキを作動してコンクリート躯体
に埋設されたロッドに反力をとって前記片持ヨークを外
型枠とともに所定高さ扛上して、同外型枠と前記上段の
内張り鋼板との間に躯体コンクリートを打設し、以下前
記の工程を繰返して鋼板内張り筒状鉄筋コンクリート構
造物を構築するものである。After that, the hydraulic jack is operated to take a reaction force to the rod buried in the concrete frame, and lift the cantilever yoke together with the outer formwork to a predetermined height, and lift the cantilevered yoke together with the outer formwork and the upper lining steel plate. A concrete frame is poured between the two, and the above-mentioned steps are repeated to construct a steel plate-lined cylindrical reinforced concrete structure.
（実施例）
以下本発明を鋼板内張り鉄筋コンクリートサイロに適用
した図示の実施例について説明する。(Example) The illustrated example in which the present invention is applied to a steel plate-lined reinforced concrete silo will be described below.
（八）は片持ヨークで、ジャンプアップ用油圧ジヤツキ
（１）が装架された頂部水平枠（２）の外側端から外側
ヨーク材（３）が垂設されている。(8) is a cantilever yoke, and an outer yoke member (3) is hung from the outer end of a top horizontal frame (2) on which a jump-up hydraulic jack (1) is mounted.
前記片持ヨーク（Ａ）は第１図及び第６図に示すように
サイロ１基毎に数個所配置される。前記ヨーク（Ａ）の
数はサイロの規模により強度上、必要数配設される。ま
た上部補強リング（４）及び油圧ジヤツキ（１）並びに
片持ヨーク（＾）予め共に地組をしておき、同時に吊込
まれる。The cantilever yokes (A) are arranged at several locations for each silo, as shown in FIGS. 1 and 6. The number of yokes (A) is determined depending on the size of the silo and the required number for strength. In addition, the upper reinforcing ring (4), hydraulic jack (1), and cantilever yoke (^) are assembled together in advance and suspended at the same time.
なお外側足場（５）は片持ヨーク（Ａ）の外側ヨーク材
（３）に片持状に取付けられ、内部作業床（６）は内張
鋼板の内周面に配設された内部縦端太（７）より単管パ
イプによって取付けられる。更に前記頂部水平枠（２）
から外型枠（８）が懸吊され、同外型枠（８）には外部
腹起しく９）と外部縦端太（１０）とが一体に取付けら
れている。The outer scaffold (5) is attached in a cantilever manner to the outer yoke material (3) of the cantilever yoke (A), and the inner working platform (6) is attached to the inner vertical end arranged on the inner peripheral surface of the lining steel plate. It is attached by a thick (7) single pipe. Furthermore, the top horizontal frame (2)
An outer formwork (8) is suspended from the outer formwork (8), and an external riser 9) and an external vertical shaft (10) are integrally attached to the outer formwork (8).
前記ジヤツキ（１）の位置と一致する筒状躯体コンクリ
ートの中心部にロッド（１１）をセットし、外側足場（
５）には躯体コンクリートに衝接するガイドローラ（１
２）の支持桿（１３）を取付け、施工中に作業床、片持
ヨークに暴風、地震等による水平力が加わった場合に抵
抗せしめるもので、前記ガイドローラ（１２）はサイロ
ｌ ＪＪにつき、数箇所強度計算の上、決定する。The rod (11) is set in the center of the cylindrical concrete frame that matches the position of the jack (1), and the outer scaffold (
5) has a guide roller (1
The support rod (13) of 2) is installed to resist horizontal forces applied to the work floor or cantilever yoke during construction due to strong winds, earthquakes, etc. The guide roller (12) is attached to the silo l JJ. Determine after calculating the strength of several locations.
図中（１４）は吊足場である。In the figure (14) is a suspended scaffold.
而して前記外型枠（８）と下段の内張り綱板（Ｂ）内に
打設されたコンクリート（Ｃ）が硬化したのち、地トで
予め円筒型に溶接された上段の内張り綱板（Ｂ′）を吊
リング（１５）を介して吊込み、内部作業床（６）上で
円筒型の下段の内張り鋼板（Ｂ）と溶接（−）シ、溶接
完了後、溶接検査を行なう、（第２図参照）
図中（１６）は吊金具である。After the concrete (C) poured into the outer formwork (8) and the lower lining rope plate (B) has hardened, the upper lining rope plate (B), which has been previously welded into a cylindrical shape on the ground, is hardened. B') is suspended via the suspension ring (15) and welded (-) to the cylindrical lower lining steel plate (B) on the internal working floor (6). After welding is completed, welding inspection is carried out. (See Figure 2) In the figure, (16) is a hanging fitting.
次いで内部作業床（６）を前記上段の内張り鋼板（Ｂ）
に盛替える。（第３図参照）
更に外型枠（８）をコンクリート（Ｃ）より剥離し、油
圧ジヤツキ（１）を作動して前記ロッド（１１）に反力
をとって片持ヨーク（Ａ）を外型枠（８）、外側足場（
５）とともに扛上させながら鉄筋（１７）を取付ける。Next, the internal working floor (6) is covered with the upper lining steel plate (B).
Replace with. (Refer to Figure 3) Furthermore, the outer formwork (8) is peeled off from the concrete (C), and the cantilever yoke (A) is removed by operating the hydraulic jack (1) to take a reaction force to the rod (11). Formwork (8), outer scaffolding (
5) Attach the reinforcing bar (17) while lifting it up.
（第４図参照）
かくして片持ヨーク（Ａ）を所定高さ扛上させたのち、
外型枠（８）をセットする。(See Figure 4) After the cantilever yoke (A) is raised to a predetermined height,
Set the outer formwork (8).
同外型枠（８）のセットに際しては、同外型枠（８）の
下部を内張り鋼板（Ｂ′）に溶接によって植立されたイ
ンサートボルト（１８）の躯体より突出する部分に装架
された型枠押え金具（１９）によって固定し、上部は前
記内部縦端太（７）と外部沼端太（１０）とをテンショ
ンボルト（２０）によって連結し、位置調整をしながら
固定する。（第５図参照）
図中（２２）は腹起している。When setting the outer formwork (8), the lower part of the outer formwork (8) is mounted on the part protruding from the frame of the insert bolt (18) that is welded to the lining steel plate (B'). The upper part is fixed by a formwork holding metal fitting (19), and the inner vertical end (7) and the outer vertical end (10) are connected by a tension bolt (20), and the formwork is fixed while adjusting the position. (See Figure 5) In the figure, (22) is standing up.
かくして外型枠（８） のセットが完了すると、同外型
枠（８）の上部に鋼製目地棒（２３）を取付ける。When the outer formwork (8) is thus set, a steel joint rod (23) is attached to the upper part of the outer formwork (8).
同鋼製目地棒（２３）は外側面が開放された台形断面に
形成され、内腔部にクッション材（２４）が嵌装され、
接着剤（２５）で接着されている。（第７図参照）前記
目地棒（２３）の取付に当っては凹型の目地棒取付金具
（２６）の頂部水平片（２６ａ）と内側脚片（２６ｂ）
とで目地棒（２３）を抱持し、外側脚片（２６ｃ）を前
記外型枠（８）における頂部片に設ける透孔（８ａ）に
嵌入するとともに、外側脚片（２６ｃ）に螺挿した蝶ね
しく２７）で外型枠（８）の外側面を圧締することによ
って、前記目地棒（２３）とクッション材（２４）とを
外型枠に固定する。（第８図参照）
前記目地棒（２３）は目地としての本来の用を果たす他
に、クッション材（２４）によってコンクリート打設後
の浮き水、ノロ等の流出を防止する。The steel joint rod (23) has a trapezoidal cross section with an open outer surface, and a cushioning material (24) is fitted into the inner cavity.
It is bonded with adhesive (25). (See Figure 7) When installing the joint bar (23), the top horizontal piece (26a) and the inner leg piece (26b) of the concave joint bar mounting bracket (26) are attached.
Holding the joint bar (23) with the handles, insert the outer leg piece (26c) into the through hole (8a) provided in the top piece of the outer formwork (8), and screw into the outer leg piece (26c). The joint bar (23) and the cushioning material (24) are fixed to the outer form by pressing the outer surface of the outer form (8) with the clamps 27). (See Figure 8) In addition to fulfilling its original purpose as a joint, the joint rod (23) also serves as a cushioning material (24) to prevent floating water, slag, etc. from flowing out after concrete is poured.
次いで前記外型枠（８）と上段の内張り鋼板（Ｂ′）と
の間に、内部作業床（６）からコンクリート（Ｃ）を打
設し、同打設コンクリート（Ｃ）が所定のレベルに達す
ると、第９図に示すように螺ねじ（２７）をゆるめ、目
地棒取付金具（２６）を外型枠（８）より取外し、再使
用に供する。Next, concrete (C) is poured from the internal working floor (6) between the outer formwork (8) and the upper lining steel plate (B'), and the poured concrete (C) is brought to a predetermined level. Once reached, the screw (27) is loosened as shown in FIG. 9, and the joint bar mounting bracket (26) is removed from the outer formwork (8) for reuse.
このようにコンクリートの打設が完了した後、前記の工
程を繰返して鋼板内張り鉄筋コンクリートサイロを構築
する。After concrete placement is completed in this manner, the above steps are repeated to construct a steel plate-lined reinforced concrete silo.
なお第１０図は前記ジヤツキ（１）によって型枠をｔｒ
上する際の力の釣合いを示すものである。In addition, Fig. 10 shows the formwork being truncated by the jack (1).
This shows the balance of forces when lifting.
（発明の効果）
本発明によれば前記したように、ヨークに装架されたジ
ャンプアップ用油圧ジヤツキを作動してコンクリート躯
体に埋設されたロッドに反力をとって前記ヨークを扛上
しながら、同ヨークより懸吊された外型枠と、内張り鋼
板との間に躯体コンクリートを打設するジャンプアフプ
エ法による鋼板内張り筒状鉄筋コンクリート構造物の構
築法において、前記ヨークを油圧ジヤツキを装架した頂
部水平枠の外側端からのみヨーク材を垂設した片持ヨー
クとすることによって、筒状構造物内側の作業スペース
が広くとれ、内張り鋼板の吊込み、鉄筋の取付け、躯体
コンクリート打設等の作業が円滑に、効率よく行なわれ
、また従来の工法に比して作業人数も少なくて済み、工
期の短縮が図られる。(Effects of the Invention) According to the present invention, as described above, the yoke is lifted up by operating the jump-up hydraulic jack mounted on the yoke and taking reaction force from the rod buried in the concrete structure. , in a method for constructing a steel plate-lined cylindrical reinforced concrete structure by the jump apué method, in which concrete is cast between the outer formwork suspended from the yoke and the lining steel plate, the yoke is mounted with a hydraulic jack. By using a cantilevered yoke with yoke material suspended only from the outer edge of the horizontal frame at the top, a large working space can be secured inside the cylindrical structure, making it possible to hang lining steel plates, attach reinforcing bars, pour concrete for the frame, etc. The work can be carried out smoothly and efficiently, and compared to conventional construction methods, fewer workers are required, which shortens the construction period.
請求項２の発明は前記片持ヨークより懸吊された外型枠
の下端部を内張り鋼板に溶着されたインサートボルトを
介して固定し、上端部は前記内張り鋼板の内側面及び前
記外型枠の外側面に夫々配設された内外両線端太材を緊
結するハイテンンヨンボルトを介して固定し、内張り鋼
板を利用して簡単且つ確実に外型枠を所定位置にセット
するようにしたものである。In the invention of claim 2, the lower end of the outer form suspended from the cantilevered yoke is fixed via an insert bolt welded to the lining steel plate, and the upper end is fixed to the inner surface of the lining steel plate and the outer form. The outer formwork is fixed through high-tension bolts that fasten both the inner and outer wire ends arranged on the outer surface of the outer formwork, and the outer formwork is easily and securely set in the specified position using the lining steel plate. It is something.
請求項３の発明はクッション材を内蔵した目地棒を、前
記外型枠の上部に、同型枠に着脱自在に装着された目地
棒取付金具を介して、前記クッション材が外型枠の内側
面に圧着するように取付けたことによって、コンクリー
ト打設後の浮き水、ノロ等の流出を防止しうるちのであ
り、躯体コンクリート表面の仕上りは打放し仕上のまま
で十分であり、モルタル補修等の表面仕上の必要はない
。The invention as claimed in claim 3 provides a joint rod having a built-in cushioning material attached to the upper part of the outer form frame through a joint rod mounting bracket that is detachably attached to the upper part of the outer form frame, so that the cushion material is attached to the inner surface of the outer form frame. By crimping the concrete to the surface, it is possible to prevent floating water, slag, etc. from flowing out after concrete is poured, and it is sufficient to leave the surface of the concrete structure as an exposed finish. There is no need for finishing.
また前記目地棒取付金具は外型枠に着脱自在に装着され
ているので、再使用に供されるものである。Further, since the joint bar mounting bracket is removably attached to the outer frame, it can be reused.
第１図乃至第５図は本発明に係る鋼板内張り筒状鉄筋コ
ンクリート構造物の施工法の一実施例の工程を示すＮ断
面図、第６図は第１図の矢視Ｘ−Ｘ図、第７図は鋼製目
地棒の縦断面図、第８図及び第９図は夫々同目地棒の外
型枠に対する取付け、並びに取外し時の状態を示す縦断
面図、第１０図は本発明の工法における力の釣合い説明
図、第１１図は従来工法の実施状況を示す縦断面図、第
１２図は従来工法における力の釣合い説明図である。
（Ａ）−ｍ−片持ヨーク、 （Ｂ）−ｍ−下段の内張り
鋼板、ＣＢ’ ）−ｍ−上段の内張り鋼板、
（ＣＬ−−コンクリート、（１）−−一油圧ジャッキ、
（２）−一一頂部水平枠、 （３）−ｍ−外側ヨーク材
、（７）−−一内側［端太、 （８）−ｍ−外型枠、（
ＩＯＬ−一外側縦端太、（１１）−ｍ＝ロツド、（１８
）−一一インサートボルト、
（２０）−ｍ−テンションボルト、
（２３） −−一目地棒、 （２４）−ｍ−クッショ
ン材、（２Ｇ）−ｍ−目地棒取付金具
第５図
代理人 弁理士 開本 重文 外２名1 to 5 are N sectional views showing steps of an embodiment of the construction method for a steel plate-lined cylindrical reinforced concrete structure according to the present invention, and FIG. Figure 7 is a vertical cross-sectional view of a steel joint bar, Figures 8 and 9 are vertical cross-sectional views showing the joint bar installed and removed from the outer formwork, respectively, and Figure 10 is a construction method of the present invention. FIG. 11 is a longitudinal sectional view showing the state of implementation of the conventional construction method, and FIG. 12 is an illustration of the balance of forces in the conventional construction method. (A)-m-cantilever yoke, (B)-m-lower lining steel plate, CB')-m-upper lining steel plate, (CL--concrete, (1)--hydraulic jack,
(2)-11 top horizontal frame, (3)-m-outer yoke material, (7)--1 inner side [thickness, (8)-m-outer formwork, (
IOL - one outer vertical end, (11) - m = rod, (18
)-11 insert bolt, (20)-m-tension bolt, (23)--first joint bar, (24)-m-cushion material, (2G)-m-joint bar mounting bracket Figure 5 Agent Attorney 2 people including academician, important cultural property, etc.
Claims (3)
平枠の外側端から外側ヨーク材を垂設してなる片持ヨー
クを所定位置に配置し、同片持ヨークより懸吊された外
型枠と、内張り鋼板との間に打設された躯体コンクリー
トが固化したのち、上段の内張り鋼板を吊込んで前記内
張り鋼板に溶接し、次いで前記油圧ジャッキを作動して
コンクリート躯体に埋設されたロッドに反力をとって前
記片持ヨークを前記外型枠とともに所定高さ扛上したの
ち、同外型枠の前記上段の内張り鋼板との間に躯体コン
クリートを打設し、以下前記の工程を繰返すことを特徴
とする鋼板内張りの筒状鉄筋コンクリート構造物の施工
法。(1) A cantilevered yoke consisting of an outer yoke material suspended from the outer end of the top horizontal frame on which a jump-up hydraulic jack is mounted is placed in a predetermined position, and the outer formwork is suspended from the cantilevered yoke. After the structural concrete poured between the upper and lining steel plates has solidified, the upper lining steel plates are suspended and welded to the lining steel plates, and then the hydraulic jack is activated to connect the rods buried in the concrete structure. After removing the reaction force and lifting the cantilever yoke together with the outer formwork to a predetermined height, concrete for the frame is poured between the outer formwork and the upper lining steel plate, and the above steps are repeated. A construction method for a cylindrical reinforced concrete structure lined with steel plates.
れたインサートボルトを介して固定するとともに、上端
部は、前記内張り鋼板の内側面及び前記外型枠の外側面
に夫々配設された内外両縦端太材を緊結するハイテンシ
ョンボルトを介して固定する請求項１記載の鋼板内張り
筒状鉄筋コンクリート構造物の施工法。(2) The lower end of the outer form is fixed to the lining steel plate via an insert bolt welded to the inner steel plate, and the upper end is arranged on the inner surface of the lining steel plate and the outer surface of the outer form, respectively. 2. The method of constructing a steel plate-lined cylindrical reinforced concrete structure according to claim 1, wherein both the inner and outer longitudinal thick members are fixed using high tension bolts.
地棒を、前記外型枠に着脱自在に装着された目地棒取付
金具を介して前記クッション材が外型枠の内側面に圧着
するように取付ける請求項１記載の鋼板内張り筒状鉄筋
コンクリート構造物の施工法。(3) A joint rod containing a built-in cushioning material is placed on the upper part of the outer formwork, and the cushioning material is crimped to the inner surface of the outer formwork via a jointer mounting bracket that is removably attached to the outer formwork. 2. The method of constructing a steel plate-lined cylindrical reinforced concrete structure according to claim 1, wherein the steel plate-lined cylindrical reinforced concrete structure is installed in such a manner as to be installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63221230A JPH0663362B2 (en) | 1988-09-06 | 1988-09-06 | Construction method of tubular reinforced concrete structure lined with steel plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63221230A JPH0663362B2 (en) | 1988-09-06 | 1988-09-06 | Construction method of tubular reinforced concrete structure lined with steel plate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0270862A true JPH0270862A (en) | 1990-03-09 |
| JPH0663362B2 JPH0663362B2 (en) | 1994-08-22 |
Family
ID=16763508
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63221230A Expired - Fee Related JPH0663362B2 (en) | 1988-09-06 | 1988-09-06 | Construction method of tubular reinforced concrete structure lined with steel plate |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0663362B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07216822A (en) * | 1994-01-28 | 1995-08-15 | Kajima Corp | Pier and self-propelled formwork method |
| JPH08134839A (en) * | 1994-11-10 | 1996-05-28 | Ohbayashi Corp | Steel pipe-concrete composite-structure pier |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5032732A (en) * | 1973-06-15 | 1975-03-29 | Ahlgren Nils H | |
| JPS5247255A (en) * | 1975-10-08 | 1977-04-14 | Tatsumi Tanaka | Snake-travel preventing apparatus for an overhead travelling crane |
| JPS53148140A (en) * | 1977-05-31 | 1978-12-23 | Shimizu Construction Co Ltd | Apparatus for buildings silo |
-
1988
- 1988-09-06 JP JP63221230A patent/JPH0663362B2/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5032732A (en) * | 1973-06-15 | 1975-03-29 | Ahlgren Nils H | |
| JPS5247255A (en) * | 1975-10-08 | 1977-04-14 | Tatsumi Tanaka | Snake-travel preventing apparatus for an overhead travelling crane |
| JPS53148140A (en) * | 1977-05-31 | 1978-12-23 | Shimizu Construction Co Ltd | Apparatus for buildings silo |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07216822A (en) * | 1994-01-28 | 1995-08-15 | Kajima Corp | Pier and self-propelled formwork method |
| JPH08134839A (en) * | 1994-11-10 | 1996-05-28 | Ohbayashi Corp | Steel pipe-concrete composite-structure pier |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0663362B2 (en) | 1994-08-22 |
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