JP3170670B2 - Construction method for floating structures - Google Patents
Construction method for floating structuresInfo
- Publication number
- JP3170670B2 JP3170670B2 JP12460294A JP12460294A JP3170670B2 JP 3170670 B2 JP3170670 B2 JP 3170670B2 JP 12460294 A JP12460294 A JP 12460294A JP 12460294 A JP12460294 A JP 12460294A JP 3170670 B2 JP3170670 B2 JP 3170670B2
- Authority
- JP
- Japan
- Prior art keywords
- support base
- formwork
- piles
- space
- floating
- 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
- Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、水上構造物の施工方法
に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for constructing a floating structure.
【０００２】[0002]
【従来の技術】図６に示すように、杭Ｐ群の上端を縦横
の粱で連結し、この粱ＢによってスラブＳを支持するよ
うな水上構造物の構築が存在する。これらの構造物を施
工するに際して、粱ＢとスラブＳを形成する型枠を杭Ｐ
群の間の空間にセットする必要がある。そのために支保
架台の上に型枠を取り付け、支保架台とともの型枠を吊
り上げて杭Ｐ間の中空に支持し、この上にコンクリート
を打設する方法が存在する。2. Description of the Related Art As shown in FIG. 6, there is an overwater structure in which the upper ends of piles P are connected by vertical and horizontal beams, and a slab S is supported by the beams B. When constructing these structures, the formwork that forms the beam B and the slab S is
Must be set in the space between groups. For this purpose, there is a method of mounting a formwork on the support base, lifting the formwork together with the support base, supporting the formwork in the hollow space between the piles P, and casting concrete thereon.
【０００３】[0003]
【発明が解決しようとする問題点】前記したような従来
の水上構造物の施工方法にあっては、型枠兼用の支保架
台を水上の杭Ｐ間まで運搬するためには特別な台船やフ
ロートを配置し、このフロートを使用して順次運搬、移
動を行わなければならないという不経済な問題点があっ
た。また、従来は型枠の形状が箱型あるために、脱型の
際に型枠とコンクリート粱の側面とが接触してしまいス
ムーズな脱型が行い難い場合があった。According to the above-mentioned conventional method for constructing a waterborne structure, a special barge or a special barge is required to transport the support frame, which also serves as a form, between the piles P on the water. There is an uneconomical problem that the float must be arranged and transported and moved sequentially using the float. Conventionally, since the shape of the mold is box-shaped, the mold may come into contact with the side surface of the concrete beam at the time of demolding, and it may be difficult to perform smooth demolding.
【０００４】[0004]
【本発明の目的】本発明は上記したような従来の問題を
解決するためになされたもので、水上構造物の施工に際
して特別な構造のフロートを必要とせずに順次型枠を移
動して施工することのできる、水上構造物の施工方法を
提供することを目的とする。また本発明は水上構造物の
施工に際して、型枠をコンクリート部材からスムーズに
脱型して施工することのできる、水上構造物の施工方法
を提供することを目的とする。SUMMARY OF THE INVENTION The object of the present invention is to solve the above-mentioned conventional problems. In the construction of a floating structure, the formwork is sequentially moved without requiring a specially structured float. It is an object of the present invention to provide a method for constructing a floating structure, which can be performed. Another object of the present invention is to provide a method for constructing a floating structure, which can smoothly remove a formwork from a concrete member when constructing the floating structure.
【０００５】[0005]
【問題点を解決するための手段】上記のような目的を達
成するために、本発明の水上構造物の施工方法は、支保
架台に搭載したドーム構造の型枠を密閉状態に形成し、
この型枠搭載支保架台を浮遊状態で杭間まで曵航し、そ
の後に杭によって空中に吊り上げ、支保架台で支持した
型枠上にコンクリートを打設して構造物を構築する、水
上構造物の施工方法を特徴としたものである。[MEANS FOR SOLVING THE PROBLEMS] In order to achieve the above-mentioned object, a method of constructing a floating structure according to the present invention comprises forming a form of a dome structure mounted on a support frame in a sealed state,
This form-mounted support base is towed to the space between the piles in a floating state, then lifted up in the air by a pile, and concrete is cast on the formwork supported by the support base to construct a structure on water. It features a construction method.
【０００６】[0006]
【本発明の構成】以下図面を参照しながら本発明の水上
構造物の施工方法の実施例について説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a method for constructing a floating structure according to the present invention will be described below with reference to the drawings.
【０００７】＜イ＞使用する型枠（図１、２） 本発明の施工方法においては密閉型の型枠１を使用す
る。この型枠１は、支保架台２上に搭載する。支保架台
２は縦横に組み立てた支持部材よりなり、その表面に型
枠１を取り付けてある。そして少なくとも型枠１の天井
部と側面部を密閉状態に形成し、かつ天井部の寸法を裾
部の寸法よりも狭く形成する。したがってこの型枠１は
裾広がりのドーム型に形成されるから、バケツのような
容器を裏返しにした状態で支保架台２の上に搭載される
ことになる。そしてこの密閉空間には外部に配置したコ
ンプレッサーＣの作動によって、圧縮空気を供給するこ
とができ、バルブを介して自由に排気ができるように構
成してある。<A> Formwork to be used (FIGS. 1 and 2) In the construction method of the present invention, a closed formwork 1 is used. The form 1 is mounted on a support base 2. The support base 2 is composed of support members assembled vertically and horizontally, and the formwork 1 is attached to the surface thereof. Then, at least the ceiling part and the side parts of the mold 1 are formed in a sealed state, and the dimension of the ceiling part is formed smaller than the dimension of the hem part. Therefore, since the mold 1 is formed in a dome shape with a widened skirt, it is mounted on the support base 2 with the container such as a bucket turned upside down. Compressed air can be supplied to the closed space by the operation of a compressor C disposed outside, and the air can be freely exhausted through a valve.
【０００８】＜ロ＞杭間型枠 密閉型枠１を支持する支保架台２の側端には、杭間型枠
３を取り付ける。この杭間型枠３は、杭Ｐ間の空間を閉
塞するために設けるもので、杭Ｐの断面だけを切り抜い
た形状の板体である。このような形状の板体を、支保架
台２の側面にヒンジを介して回転自在に取り付けてあ
る。<B> Pile Form Form A pile form 3 is attached to a side end of the support base 2 supporting the closed form 1. The pile-to-pile form 3 is provided to close the space between the piles P, and is a plate body having a shape obtained by cutting out only the cross section of the pile P. A plate having such a shape is rotatably attached to a side surface of the support base 2 via a hinge.
【０００９】＜ハ＞曵航（図３） 実際の施工に際しては事前に多数本の杭Ｐを正確な間隔
で水上から水底にむけて打設しておく。一方、上記の型
枠１は現場付近の海岸、川岸のドックにおいて製造し、
杭Ｐ群に向けて曵航する。この型枠１を搭載した支保架
台２を曵航するには、密閉状態の型枠１内に圧縮空気を
供給することのよって浮力を調整して行うことができ、
気象状況が悪ければ沈没状態にして退避させることも、
沈没状態で曵航することも可能である。<C> Towing (FIG. 3) In actual construction, a large number of piles P are previously driven from the water to the water bottom at accurate intervals. On the other hand, the above-mentioned formwork 1 is manufactured on the coast near the site and on the dock near the riverbank.
Towing to P pile group. Towing the gantry 2 on which the form 1 is mounted can be performed by adjusting the buoyancy by supplying compressed air into the closed form 1,
If the weather conditions are bad, you can evacuate by sinking,
It is also possible to tow in the sinking state.
【００１０】＜ニ＞杭Ｐ間への吊り上げ（図４） 浮遊状態で杭Ｐ間まで曵航したら、クレーン、レバーブ
ロックなどによって支保架台２および型枠１を空中に吊
り上げる。そして杭Ｐに反力を取って鋼棒、鋼線、など
を利用して空中に固定する。支保架台２の端部には杭間
型枠３がヒンジによって回転自在に取り付けてあるか
ら、支保架台２を吊り上げると、杭間型枠３は垂れ下が
ることになる。そこでこれらの杭間型枠３を水平に引き
起こし、杭間型枠３群によって杭Ｐ間の空間を閉塞す
る。（図５）<D> Lifting between piles P (FIG. 4) When the boat is towed between the piles P in a floating state, the support base 2 and the formwork 1 are lifted in the air by a crane, a lever block, or the like. Then, the pile P is fixed in the air by taking a reaction force and using a steel rod, a steel wire, or the like. Since the inter-pile form 3 is rotatably attached to the end of the support base 2 by a hinge, when the support base 2 is lifted, the inter-pile form 3 hangs down. Therefore, these pile-forms 3 are raised horizontally, and the space between the piles P is closed by the group 3 of pile-forms. (Fig. 5)
【００１１】＜ホ＞コンクリートの打設 支保架台２で支持した型枠１、および杭間型枠３の上に
鉄筋を組み立て、コンクリートを打設して構造物を構築
する。コンクリートが硬化したら、支保架台２、型枠１
を自重によって脱型し、再び水面に下ろす。前記したよ
うに型枠１は密封状態であるから水面に下ろせば浮力に
応じた水位において浮遊している。これを次の杭Ｐ間に
移動して同様の順序で構造物の施工を行う。<E> Casting of concrete A reinforcing bar is assembled on the formwork 1 supported by the support base 2 and the formwork 3 between piles, and concrete is cast to construct a structure. When the concrete has hardened, the support base 2 and formwork 1
Is removed by its own weight and lowered again to the surface of the water. As described above, since the mold 1 is in a sealed state, if it is lowered on the water surface, it floats at a water level corresponding to the buoyancy. This is moved between the following piles P, and construction of a structure is performed in the same order.
【００１２】[0012]
【発明の効果】本発明の水上構造物の施工方法は以上説
明したようになるから次のような効果を得ることができ
る。 ＜イ＞型枠１と支保架台２とが一体であり、かつ浮力の
調整が自由であるから、作業が迅速で経済的である。 ＜ロ＞型枠１兼支保架台２の吊り上げと吊り下ろし、移
動の作業だけで連続して施工することができるから、工
期短縮を図ることができる。 ＜ハ＞型枠１の解体のためにその下の狭い空間に作業員
が立ち入る必要がなく、安全に施工することができる。 ＜ニ＞型枠の形状が箱型ではなくドーム型に形成してあ
る。そのために脱型に際して型枠とコンクリートの側面
とが接触することがなくスムーズな脱型作業を行うこと
ができる。As described above, the method for constructing a floating structure according to the present invention has the following advantages. <A> Since the form 1 and the support base 2 are integrated and the buoyancy can be freely adjusted, the operation is quick and economical. <B> Since the work can be continuously performed only by lifting and lowering the formwork 1 and the support base 2 and moving the work, the construction period can be shortened. <C> There is no need for an operator to enter the narrow space below the formwork 1 for dismantling, and the construction can be performed safely. <D> The shape of the mold is not a box but a dome. Therefore, when the mold is removed, the mold and the side surface of the concrete do not come into contact with each other, so that a smooth removal operation can be performed.
【図１】本発明の水上構造物の施工に使用する型枠の実
施例の説明図FIG. 1 is an explanatory view of an embodiment of a formwork used for construction of a floating structure according to the present invention.
【図２】水上構造物の施工方法の実施例の説明図FIG. 2 is an explanatory view of an embodiment of a construction method of a floating structure.
【図３】水上構造物の施工方法の実施例の説明図FIG. 3 is an explanatory view of an embodiment of a construction method of a floating structure.
【図４】水上構造物の施工方法の実施例の説明図FIG. 4 is an explanatory view of an embodiment of a method for constructing a floating structure.
【図５】水上構造物の施工方法の実施例の説明図FIG. 5 is an explanatory view of an embodiment of a method for constructing a floating structure.
【図６】水上構造物の説明図FIG. 6 is an explanatory view of a floating structure.
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.7，ＤＢ名) E02B 17/00 E04G 11/20 ──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. 7 , DB name) E02B 17/00 E04G 11/20
Claims (4)
閉状態に形成し、 この型枠搭載支保架台を浮遊状態で杭間まで曵航し、 その後に杭によって空中に吊り上げ、 支保架台で支持した型枠上にコンクリートを打設して構
造物を構築する、 水上構造物の施工方法1. A dome-shaped formwork mounted on a support base is formed in a sealed state, and the formmount-supported support base is towed to a space between piles in a floating state, and then lifted up in the air by a pile. Construction method for floating structures, where concrete is cast on a supported formwork to build a structure
閉状態に形成し、 この型枠搭載支保架台を浮遊状態で杭間まで曵航し、 その後に杭によって空中に吊り上げ、 支保架台に取り付けた底板群を展開して杭間の空間を閉
塞し、 支保架台で支持した型枠、および底板の上にコンクリー
トを打設して構造物を構築する、 水上構造物の施工方法2. A dome-structured formwork mounted on a support base is formed in a sealed state, and the form-supported support base is towed to a space between the piles in a floating state, and then lifted up in the air by the piles. A method for constructing a floating structure, in which a group of attached bottom plates is unfolded to block the space between the piles, a formwork supported by a shoring support, and a structure constructed by casting concrete on the bottom plate
閉状態に形成し、 支保架台の側面には底板群を回転自在に取り付けてお
き、 この型枠搭載支保架台を浮遊状態で杭間まで曵航し、 その後に杭によって空中に吊り上げ、 支保架台に取り付けた底板群を展開して杭間の空間を閉
塞し、 支保架台で支持した型枠、および底板の上にコンクリー
トを打設して構造物を構築する、 水上構造物の施工方法3. A dome-shaped formwork mounted on a support base is formed in a sealed state, and a bottom plate group is rotatably mounted on a side surface of the support base. Towing to the air, and then lifted up in the air by a pile, deploying the bottom plate group attached to the support base, closing the space between the piles, and placing concrete on the formwork supported by the support base and the bottom plate. Construction method for floating structures
閉状態に形成し、 その密閉空間には圧縮空気を供給、排気自在に構成し、 支保架台の側面には底板群を回転自在に取り付けてお
き、 この型枠搭載支保架台を浮遊状態で杭間まで曵航し、 その後に杭によって空中に吊り上げ、 支保架台に取り付けた底板群を展開して杭間の空間を閉
塞し、 支保架台で支持した型枠、および底板の上にコンクリー
トを打設して構造物を構築する、 水上構造物の施工方法4. A dome-shaped formwork mounted on a support base is formed in a sealed state, and compressed air is supplied to and exhausted from the closed space, and a bottom plate group is rotatable on a side surface of the support base. This form-mounted support base is towed to the space between the piles in a floating state, and then lifted up in the air by the piles. Construction method of a floating structure, where concrete is cast on the formwork and bottom plate supported by
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12460294A JP3170670B2 (en) | 1994-05-13 | 1994-05-13 | Construction method for floating structures |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12460294A JP3170670B2 (en) | 1994-05-13 | 1994-05-13 | Construction method for floating structures |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH07305331A JPH07305331A (en) | 1995-11-21 |
| JP3170670B2 true JP3170670B2 (en) | 2001-05-28 |
Family
ID=14889508
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12460294A Expired - Fee Related JP3170670B2 (en) | 1994-05-13 | 1994-05-13 | Construction method for floating structures |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3170670B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4745496B2 (en) * | 2000-11-09 | 2011-08-10 | 大成建設株式会社 | Floating formwork support and construction method of water structure |
-
1994
- 1994-05-13 JP JP12460294A patent/JP3170670B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH07305331A (en) | 1995-11-21 |
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