JP5131654B2 - Scaffolding device used for rotating renewal construction method of side wall of cylindrical structure - Google Patents
Scaffolding device used for rotating renewal construction method of side wall of cylindrical structure Download PDFInfo
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- 238000010276 construction Methods 0.000 title claims description 15
- 239000000463 material Substances 0.000 claims description 22
- 230000002093 peripheral effect Effects 0.000 claims description 21
- 238000002955 isolation Methods 0.000 claims description 3
- 230000000452 restraining effect Effects 0.000 claims 1
- 238000000034 method Methods 0.000 description 9
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000383 hazardous chemical Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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Description
この発明は、円筒形構造物の周囲の作業場所が狭く火気取扱いなどの安全面も厳しく制限されている場合に、作業性良く安全に円筒形構造物の側壁の回転更新施工を行う際に使用する足場装置に関するものである。 This invention is used when rotating and renewing the side wall of a cylindrical structure with good workability when the working area around the cylindrical structure is narrow and safety aspects such as handling of fire are severely restricted. The present invention relates to a scaffold device.
円筒形の鋼製の側壁を有する大型の貯槽等の円筒形構造物は、建設後長い年月を経過し老朽化すると、安全のために補修する必要が生じている。また、円筒形構造物の用途変更や立地条件等の変更によって、側壁の部分又は全体を更新する必要が生じている。 Cylindrical structures such as large storage tanks with cylindrical steel side walls need to be repaired for safety when they are aged for many years after construction. Moreover, it is necessary to update the side wall part or the whole due to changes in the use of the cylindrical structure, changes in location conditions, and the like.
従来一般の貯槽等の円筒形構造物を補修する場合は、図５に示すように、円筒形構造物の側壁の外周全体に隔離して固定足場２５を仮設し、その固定足場２５の上で作業者が側壁３をガス切断等で切断してブロック化し、そのブロック化した側板片をクレーン等の重機２４で吊り上げて降下し、高所より順次下部に向かって補修作業を行っている。 このように重機２４を使って高所より下部に向かって補修する方法は、円筒形構造物の周囲にわたって重機２４が移動する広い作業場所が必要であった。殊に、周囲に危険物を貯蔵する円筒形構造物、稼動設備などがある場所では、重機２４を使用する作業場所が制限され、火気の飛散対策などの大規模で厳重な安全対策も要求されている。 また、固定足場２５は壁つなぎ材２６によって側壁３へ固着しているため、周壁の補修の際に、その都度補修箇所の固定足場２５を撤去などする必要が生じた。 When repairing a conventional cylindrical structure such as a storage tank, as shown in FIG. 5, a fixed scaffold 25 is temporarily installed on the entire outer periphery of the side wall of the cylindrical structure. An operator cuts the side wall 3 by gas cutting or the like to make a block, and the blocked side plate piece is lifted and lowered by a heavy machine 24 such as a crane, and repair work is sequentially performed from a high place toward the lower part. Thus, the method of repairing from the high place to the lower part using the heavy machine 24 requires a wide working place where the heavy machine 24 moves around the periphery of the cylindrical structure. In particular, in places where there are cylindrical structures that store hazardous materials, operating facilities, etc., work places where heavy machinery 24 is used are restricted, and large-scale and strict safety measures such as measures against fire scattering are required. ing. Further, since the fixed scaffold 25 is fixed to the side wall 3 by the wall connecting material 26, it is necessary to remove the fixed scaffold 25 at the repair location each time the peripheral wall is repaired.
作業性と安全性を配慮した技術には、本出願人による特願２００６−１４９７７４号の「貯槽側板の更新施工法」の発明がある。この発明は、図４に示すように、屋根２と側壁３を備えた円筒形構造物１の通路２２の限られた作業エリア２３に、クレーンなどの重機２４を設置し、側回転ローラー４，４・・・を使用して側壁３を水平に回転させながら、側板片３Ｎの更新作業を行うリボルバー工法に関するものである。 As a technique considering workability and safety, there is an invention of “Renewal construction method of storage tank side plate” of Japanese Patent Application No. 2006-149774 by the present applicant. In the present invention, as shown in FIG. 4, a heavy machine 24 such as a crane is installed in a limited work area 23 of a passage 22 of a cylindrical structure 1 having a roof 2 and a side wall 3. 4 is used for the revolver method in which the side plate piece 3N is updated while rotating the side wall 3 horizontally.
従来一般の円筒形構造物の補修方法は、図５に示すように、円筒形構造物１の全周囲にわたってクレーン等大形の重機２４が移動する広い作業場所が必要であり、周囲が防液堤に囲われて狭い場合や周囲に危険物を貯蔵する円筒形構造物、稼動設備などがある場所では、作業場所が制限されていた。 また、補修箇所に位置する固定足場２５を順次取外し撤去しながら、側板片を搬入出するなどの作業も煩雑で大変であった。 さらに、重機２４の移動と吊上げ降下に伴う地盤の養生や火気の飛散対策などの大規模で厳重な安全対策も要求されていた。 As shown in FIG. 5, the conventional general cylindrical structure repair method requires a wide work place where a heavy machine 24 such as a crane moves around the entire circumference of the cylindrical structure 1. Work places were restricted in narrow spaces surrounded by a bank, or in places where there are cylindrical structures that store dangerous materials and operating facilities. Also, the work of carrying in and out the side plate pieces while removing and removing the fixed scaffold 25 located at the repair site in order is complicated and difficult. Furthermore, large-scale and strict safety measures such as ground curing and fire scattering measures associated with the movement and lifting of heavy equipment 24 have been required.
本出願人による特願２００６−１４９７７４号の「貯槽側板の更新施工法」の発明は、図４に示すように、所定エリアに吊上げ搬送用の重機２４を設置し、側壁３の下方全周に設置した側回転ローラー４，４・・・によって貯槽を回転させながら順次側板片３Ａの搬入、搬出を行うため、安全性に優れ作業性が良い施工法である。 しかしながら、外周に足場を設けて安全に作業効率良く更新施工を行う場合、側壁３を回転させながら施工するため、壁つなぎ材などによって外周足場を側壁３に固着することはできなかった。 また、外周足場を側壁３に固着することができないため、この外周足場を外側に広がらないように安定支持する必要が生じた。 As shown in FIG. 4, the invention of Japanese Patent Application No. 2006-149774 “Renewal Construction Method for Storage Tank Side Plates” by the present applicant is set up with a heavy machine 24 for lifting and transporting in a predetermined area, Since the side plate pieces 3A are sequentially carried in and out while rotating the storage tank by the installed side rotation rollers 4, 4,..., This is a construction method with excellent safety and good workability. However, when the scaffold is provided on the outer periphery and the renewal construction is performed safely and efficiently, the construction is performed while the side wall 3 is rotated. Therefore, the outer circumference scaffold cannot be fixed to the side wall 3 with a wall connecting material or the like. Further, since the outer periphery scaffold cannot be fixed to the side wall 3, it is necessary to stably support the outer periphery scaffold so as not to spread outward.
この発明の目的は、上述のような技術が有する問題点に鑑みてなされたもので、貯槽等の円筒形構造物の側壁を回転させて取替え更新施工する際に、外周の足場を側壁に固着することなく、側壁を回転可能にするとともに、外周足場が外側へ広がらないように安定支持し、側壁との当接部が摩擦することがない、安全性に優れ作業性が良い足場装置を提供するものである。 The object of the present invention has been made in view of the problems of the above-described technology. When the replacement structure is installed by rotating the side wall of a cylindrical structure such as a storage tank, the outer periphery scaffold is fixed to the side wall. This provides a scaffolding device that can rotate the side wall, stably support the outer periphery scaffold so that it does not spread outward, and does not rub against the abutting part with the side wall, and has excellent safety and workability. To do.
請求項１の発明に係る円筒形構造物の側壁の回転更新施工法に使用する足場装置は、円筒形構造物の所定エリアに吊上げ搬送用の重機を設置し、該円筒形構造物の側壁の下方全周に設置した側回転ローラーによって上方の側壁を回転させながら順次側板片を切断し、上記重機を使用して側板片を吊上げ搬送して更新側壁に取替える円筒形構造物の側壁の回転更新施工法において、円筒形構造物の側壁外周から外側に隔離して外周足場を設け、該外周足場は側壁から外側に環状に設ける枠組足場とその枠組足場の内側の適所に着脱自在に設けるブラケット足場とからなり、かつ外周足場から側壁へ水平に渡して外周足場と側壁との間の距離を所定間隔に保持する壁当り材を側壁の上下方向及び同一高さの円周方向に亘ってそれぞれ間隔をおいて設け、該壁当り材の先端に、側壁に対し水平円周方向に回転接触する回転部材を取り付けるとともに、外周足場の外周方向及び外側への動きを拘束する周長固定部材を、該外周足場の上下方向に間隔をおいてそれぞれ同一高さの外周足場の円周方向にそれぞれ設けたものである。
The scaffold device used for the rotation renewal construction method of the side wall of the cylindrical structure according to the invention of claim 1 is provided with a heavy machine for lifting and conveying in a predetermined area of the cylindrical structure, and the side wall of the cylindrical structure Rotating and renewing the side wall of a cylindrical structure that cuts the side plate pieces sequentially while rotating the upper side wall with the side rotation roller installed all around the lower side, and lifts and conveys the side plate pieces using the above heavy machinery and replaces them with the updated side wall. in construction methods, the outer peripheral scaffolding provided from the sidewall periphery of the cylindrical structure in isolation to the outside, the bracket scaffold outer peripheral scaffold provided detachably in place inside the framework scaffolding and framework scaffolding provided annularly outwardly from the side wall And a wall- to- wall material that passes horizontally from the outer periphery scaffold to the side wall and maintains the distance between the outer periphery scaffold and the side wall at a predetermined interval, is spaced apart in the vertical direction of the side wall and in the circumferential direction of the same height. Leave Only the tip of the wall per material, is attached a rotary member which rotates in contact with the horizontal circumferential direction relative to the side wall, the circumferential length fixing member that restrains the movement of the outer peripheral direction and an outer periphery scaffold, of the outer circumferential anchorage These are provided in the circumferential direction of the outer circumference scaffolding of the same height, with an interval in the vertical direction .
請求項１の発明に係る円筒形構造物の側壁の回転更新施工法に使用する足場装置は、円筒形構造物の所定エリアに吊上げ搬送用の重機を設置し、該円筒形構造物の側壁の下方全周に設置した側回転ローラーによって上方の側壁を回転させながら順次側板片を切断し、上記重機を使用して側板片を吊上げ搬送して更新側壁に取替える円筒形構造物の側壁の回転更新施工法において、円筒形構造物の側壁外周から外側に隔離して外周足場を設け、該外周足場は側壁から外側に環状に設ける枠組足場とその枠組足場の内側の適所に着脱自在に設けるブラケット足場とからなり、かつ外周足場から側壁へ水平に渡して外周足場と側壁との間の距離を所定間隔に保持する壁当り材を側壁の上下方向及び同一高さの円周方向に亘ってそれぞれ間隔をおいて設け、該壁当り材の先端に、側壁に対し水平円周方向に回転接触する回転部材を取り付けるとともに、外周足場の外周方向及び外側への動きを拘束する周長固定部材を、該外周足場の上下方向に間隔をおいてそれぞれ同一高さの外周足場の円周方向にそれぞれ設けたので、外周足場は側壁に固着されることなく自立状態となり、足場と側壁間を渡す壁当り材の先端当接部には摩擦抵抗を生じない回転部材を取付けているため、側壁を円滑に回転させることができる。
The scaffold device used for the rotation renewal construction method of the side wall of the cylindrical structure according to the invention of claim 1 is provided with a heavy machine for lifting and conveying in a predetermined area of the cylindrical structure, and the side wall of the cylindrical structure Rotating and renewing the side wall of a cylindrical structure that cuts the side plate pieces sequentially while rotating the upper side wall with the side rotation roller installed all around the lower side, and lifts and conveys the side plate pieces using the above heavy machinery and replaces them with the updated side wall. in construction methods, the outer peripheral scaffolding provided from the sidewall periphery of the cylindrical structure in isolation to the outside, the bracket scaffold outer peripheral scaffold provided detachably in place inside the framework scaffolding and framework scaffolding provided annularly outwardly from the side wall And a wall- to- wall material that passes horizontally from the outer periphery scaffold to the side wall and maintains the distance between the outer periphery scaffold and the side wall at a predetermined interval, is spaced apart in the vertical direction of the side wall and in the circumferential direction of the same height. Leave Only the tip of the wall per material, is attached a rotary member which rotates in contact with the horizontal circumferential direction relative to the side wall, the circumferential length fixing member that restrains the movement of the outer peripheral direction and an outer periphery scaffold, of the outer circumferential anchorage Since the outer scaffolds are provided in the circumferential direction at the same height and spaced apart from each other in the vertical direction , the outer scaffolds are in a self-supporting state without being fixed to the side walls, and the tip of the per-wall material passing between the scaffolds and the side walls. Since a rotating member that does not generate frictional resistance is attached to the contact portion, the side wall can be smoothly rotated.
また、請求項１の発明は、円筒形構造物の側壁外周から外側に隔離して外周足場を設け、該外周足場は側壁から外側に環状に設ける枠組足場とその枠組足場の内側の適所に着脱自在に設けるブラケット足場とからなり、かつ外周足場から側壁へ水平に渡して外周足場と側壁との間の距離を所定間隔に保持する壁当り材を側壁の上下方向及び同一高さの円周方向に亘ってそれぞれ間隔をおいて設け、該壁当り材の先端に、側壁に対し水平円周方向に回転接触する回転部材を取り付けるとともに、外周足場の外周方向及び外側への動きを拘束する周長固定部材を、該外周足場の上下方向に間隔をおいてそれぞれ同一高さの外周足場の円周方向にそれぞれ設けたので、側壁と外周足場との間の適所に渡す壁当り材の先端部に側壁の回動を案内する回転部材を設けるとともに、外周足場の外周方向への動きを拘束する周長固定部材を設けたので、外周足場は側壁に固着しないで壁当り材の先端当接部に摩擦抵抗を生じない回転部材を取付けているため側壁の回動をスムーズにするとともに、外周足場は周長固定部材で連結しているため外側へ広がることなく安定し固定支持能力が更に向上する。
According to the first aspect of the present invention, an outer periphery scaffold is provided separately from the outer periphery of the side wall of the cylindrical structure, and the outer periphery scaffold is attached to and detached from an appropriate position inside the frame scaffold and the frame scaffold provided in an annular shape outward from the side wall. A bracket scaffolding that can be freely provided, and a wall bearing member that holds the distance between the outer periphery scaffold and the side wall at a predetermined interval horizontally from the outer periphery scaffold to the side wall, and the circumferential direction of the same height. each spaced over the tip of the wall per material, circumferential to restrain movement of Rutotomoni mounting a rotary member which rotates in contact with the horizontal circumferential direction relative to the side wall, toward the outer periphery and outer periphery scaffold Since the long fixing member is provided in the circumferential direction of the outer periphery scaffold of the same height with an interval in the vertical direction of the outer periphery scaffold, the front end portion of the per-wall material passed to the appropriate position between the side wall and the outer periphery scaffold To guide the rotation of the side wall In addition to providing a member and a peripheral length fixing member that restrains the movement of the outer periphery scaffold in the outer peripheral direction, the outer periphery scaffold is not fixed to the side wall, and a rotating member that does not cause frictional resistance at the tip contact portion of the wall contact material is provided. Since it is attached, the rotation of the side wall is smoothed, and the outer periphery scaffold is connected by the peripheral length fixing member, so that it is stable without spreading outward and the fixed support capability is further improved.
この発明に係る円筒形構造物の側壁の回転更新施工法に使用する足場装置の実施形態を、図１乃至図３に基づいて説明する。 図１は、円筒形構造物の外周に足場を設けて、側壁を回転更新施工法によって交換している状況を示す全体説明図、図２は図１の平面説明図である。図３は、足場装置の部分を示す側面説明図である。 An embodiment of a scaffold device used in the rotation updating method for the side wall of a cylindrical structure according to the present invention will be described with reference to FIGS. 1 to 3. FIG. 1 is an overall explanatory view showing a situation in which a scaffold is provided on the outer periphery of a cylindrical structure and the side walls are exchanged by a rotational update method, and FIG. 2 is an explanatory plan view of FIG. FIG. 3 is an explanatory side view showing a part of the scaffold device.
貯槽等の円筒形構造物の上部側壁を回転させて更新する工法、つまりリボルバー工法で更新施工する場合、側回転ローラー４を使用して側壁３を水平に回転させ、所定箇所で重機２４を用いて側板片３Ｎの搬入、搬出をして、順次回転移動させて側壁３の取替え更新を行うものである。（図４に示して前記詳述） When renewing by rotating the upper side wall of a cylindrical structure such as a storage tank, that is, revolving by the revolver method, the side wall 3 is rotated horizontally using the side rotation roller 4 and a heavy machine 24 is used at a predetermined location. Then, the side plate pieces 3N are carried in and out, and are rotated and moved sequentially to replace and update the side walls 3. (Shown in detail in FIG. 4)
図１の全体説明図に示すように、円筒形構造物１の側壁３から外側に隔離して外周足場５を設け、安全性と作業性を向上させて、円筒形構造物１の上部側壁３を回転させて更新施工する。 外周足場５の所定箇所に設けた開口作業部９にて、重機２４を使用して側板片３Ｎの搬入、搬出を行う。 次いで、側回転ローラー４を使用して側壁３を水平に回転させて順次移動させ、上記操作を繰り返して、側壁３の取替え更新を行うものである。 As shown in the overall explanatory view of FIG. 1, an outer periphery scaffold 5 is provided outside the side wall 3 of the cylindrical structure 1 so as to improve safety and workability, and the upper side wall 3 of the cylindrical structure 1 is improved. Rotate and renew. In the opening work part 9 provided in the predetermined location of the outer periphery scaffold 5, the heavy machine 24 is used to carry in and carry out the side plate piece 3N. Next, the side rotation roller 4 is used to rotate the side wall 3 horizontally and sequentially move it, and the above operation is repeated to replace and update the side wall 3.
図１に示すように、外周足場５から側壁３へ渡して所定間隔を保持する壁当り材６を設ける。 この壁当り材６が当接する先端部には、コロ、ローラーなどの回転接触する回転部材８を取り付ける。 壁当り材６及び先端の回転部材８は、円周方向及び垂直方向の適所に隔離して設ける。 また、外周足場５の外側から棒材、管材、ワイヤロープなどの連続した周長固定部材７で、連結部７Ａ，７Ａ間を連結して内側に押え付け、外周足場５の広がりを拘束する。 この周長固定部材７は、上下に隔離し円周方向に複数本、巻きつけるように連結する。 As shown in FIG. 1, a wall contact material 6 is provided that extends from the outer periphery scaffold 5 to the side wall 3 and maintains a predetermined interval. A rotating member 8 such as a roller or a roller that is in rotational contact is attached to the front end of the wall contact material 6 that comes into contact. The wall contact material 6 and the rotating member 8 at the tip are provided separately at appropriate positions in the circumferential direction and the vertical direction. Further, the connecting portions 7A and 7A are connected and pressed inward by a continuous peripheral length fixing member 7 such as a bar, tube, or wire rope from the outside of the outer periphery scaffold 5 to restrain the outer periphery scaffold 5 from spreading. This circumferential length fixing member 7 is separated in the vertical direction and connected so as to be wound in a circumferential direction.
図２の全体平面図に示すように、円形の側壁３の外側に環状の外周足場５設ける。 ９は側板片の搬入、搬出を行う所定箇所に設けた開口作業部である。 外周足場５の適所、対称位置に、側壁３との間を渡すように壁当り材６を設ける。 この壁当り材６の外側位置の連結部７Ａ，７Ａ・・・間に周長固定部材７を連結し、壁当り材６の内側先端の側壁３に当接する位置に回転部材８を取り付ける。 As shown in the overall plan view of FIG. 2, an annular outer periphery scaffold 5 is provided outside the circular side wall 3. Reference numeral 9 denotes an opening working portion provided at a predetermined place where the side plate pieces are carried in and out. A wall contact member 6 is provided so as to pass between the side wall 3 and a suitable position of the outer periphery scaffold 5. The peripheral length fixing member 7 is connected between the connecting portions 7A, 7A... At the outer position of the wall-contacting material 6, and the rotating member 8 is attached at a position where it abuts on the side wall 3 at the inner end of the wall-contacting material 6.
図３に示すように、外周足場５は、側壁３から外側に環状に設ける枠組足場５Ａと、その内側の適所に着脱自在に設けるブラケット足場５Ｂとからなる。 壁当り材６は、枠組足場５Ａを貫通し水平に渡して設け、その外側位置７Ａに周長固定部材７を連結する。 回転部材８は、壁当り材６の内側先端の側壁３に当接する位置に、水平円周方向に回転するように取り付ける。 ブラケット足場５Ｂは、側壁３に接触しないように枠組足場５Ａの内側適所に着脱自在に取り付ける。 As shown in FIG. 3, the outer periphery scaffold 5 includes a frame scaffold 5 </ b> A that is annularly provided on the outer side from the side wall 3, and a bracket scaffold 5 </ b> B that is detachably provided at an appropriate position on the inner side. The wall contact material 6 is provided so as to pass through the frame scaffold 5A and horizontally, and the peripheral length fixing member 7 is connected to the outer position 7A. The rotating member 8 is attached so as to rotate in the horizontal circumferential direction at a position in contact with the side wall 3 at the inner front end of the wall contact member 6. The bracket scaffold 5B is detachably attached to an appropriate position inside the frame scaffold 5A so as not to contact the side wall 3.
上記のように、回転する側壁３へ外周足場５を固着することなく、当接する壁当り材６の先端に回転接触する回転部材８を取り付けているので、側壁３は円滑に回転するため足場上での作業性が良く安全性を確保する。 As described above, since the rotating member 8 that is in rotational contact is attached to the tip of the abutting wall member 6 without fixing the outer periphery scaffold 5 to the rotating side wall 3, the side wall 3 rotates smoothly, so Workability at the site is good and safety is ensured.
また、外周足場５は外側から周長固定部材７で押し付けて広がりを拘束しているため、側壁３に対して動くことなく間隔を保持し安定化する。 Moreover, since the outer periphery scaffold 5 is pressed from the outside by the peripheral length fixing member 7 and restrains the spread, the distance is maintained and stabilized without moving with respect to the side wall 3.
上述のように、外周足場５は周長固定部材７で連結しているため、外側へ広がることなく安定化し、この外周足場５は側壁３に固着していないで、壁当り材６の先端当接部に回転部材８を取付けているため、摩擦抵抗を生ずることなく円滑に側壁３を回転させることができ、安全作業で作業性良く側壁３を取替え更新施工することができる。 As described above, since the outer periphery scaffold 5 is connected by the peripheral length fixing member 7, the outer periphery scaffold 5 is stabilized without spreading to the outside, and the outer periphery scaffold 5 is not fixed to the side wall 3, so Since the rotating member 8 is attached to the contact portion, the side wall 3 can be smoothly rotated without generating frictional resistance, and the side wall 3 can be replaced and renewed with good workability in a safe operation.
この発明に係る円筒形構造物の回転更新施工法に用いる足場装置は、周囲が狭く限られた場所や周囲に危険物などがある貯槽等、円筒形の種々の構築物などの限られた修復作業において、壁当り材と回転部材及び周長固定部材を備えた作業性のよい足場装置として使用することができる。 Scaffolding device used in the method of rotating and renewing a cylindrical structure according to the present invention is a limited repair work for various cylindrical structures such as a storage space where the surroundings are narrow and limited and dangerous materials are present in the surroundings. In the above, it can be used as a scaffold device with good workability provided with a wall contact material, a rotating member and a circumferential length fixing member.
１円筒形構造物 ２屋根 ３側壁 ３Ｎ側板片 ４側回転ローラー ５外周足場 ５Ａ組枠足場 ５Ｂブラケット足場 ６壁当り材 ７周長固定部材 ７Ａ連結部 ８回転部材 ９開口作業部 ２１防液堤 ２２通路 ２３作業エリア ２４重機 ２５固定足場 ２６壁つなぎ材 1 Cylindrical Structure 2 Roof 3 Side Wall 3N Side Plate 4 Side Rotating Roller 5 Outer Perimeter Scaffolding 5A Assembly Frame Scaffold 5B Bracket Scaffold 6 Wall Perimeter 7 Peripheral Long Fixed Member 7A Connecting Portion 8 Rotating Member 9 Opening Work Portion 21 Breakwater 22 Passage 23 Work area 24 Heavy machine 25 Fixed scaffold 26 Wall connecting material
Claims (1)
A heavy machine for lifting and conveying is installed in a predetermined area of the cylindrical structure, and the side plate pieces are sequentially cut while rotating the upper side wall by a side rotation roller installed on the entire lower side of the side wall of the cylindrical structure. in rotational update construction methods of the sidewall of the cylindrical structure to replace the transport to update sidewall lifting the plate piece using heavy equipment, the outer peripheral scaffolding provided from the sidewall periphery of the cylindrical structure in isolation to the outside, the outer peripheral scaffold given the distance between the framework scaffolding with inner place in consists of a detachably provided bracket scaffold, and the outer peripheral anchorage and the side wall from the outer scaffolding pass horizontally to the side walls of the framework scaffolding provided annularly outwardly from sidewall Rotating the wall-supporting material held at intervals in the vertical direction of the side wall and the circumferential direction of the same height at intervals, and rotating at the tip of the wall-contacting material in rotational contact with the side wall in the horizontal circumferential direction. take the member Kicking with, that the circumferential length fixing member for restraining the movement of the outer peripheral direction and an outer periphery scaffold, respectively provided in the circumferential direction of the outer peripheral scaffold each flush with an interval in the vertical direction of the outer circumferential anchorage Scaffolding device used for the rotating renewal construction method of the side wall of the cylindrical structure which is characterized.
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