JPH03114992A - Construction method for ocean floating structure - Google Patents
Construction method for ocean floating structureInfo
- Publication number
- JPH03114992A JPH03114992A JP1172557A JP17255789A JPH03114992A JP H03114992 A JPH03114992 A JP H03114992A JP 1172557 A JP1172557 A JP 1172557A JP 17255789 A JP17255789 A JP 17255789A JP H03114992 A JPH03114992 A JP H03114992A
- Authority
- JP
- Japan
- Prior art keywords
- concrete
- joint end
- jointing
- joint
- steel material
- 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
- 238000007667 floating Methods 0.000 title claims abstract description 28
- 238000010276 construction Methods 0.000 title description 2
- 239000004567 concrete Substances 0.000 claims abstract description 49
- 239000000463 material Substances 0.000 claims abstract description 17
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 13
- 239000010959 steel Substances 0.000 claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 11
- 238000012856 packing Methods 0.000 claims abstract description 10
- 238000000034 method Methods 0.000 claims abstract description 8
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 210000002435 tendon Anatomy 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 238000010926 purge Methods 0.000 abstract 1
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 238000005192 partition Methods 0.000 description 2
- 239000011178 precast concrete Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Landscapes
- Bridges Or Land Bridges (AREA)
- Revetment (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は水面上に浮かべて浮桟橋や浮防波堤等として使
用する洋上浮游構造物の建造方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a method of constructing an offshore floating structure that is floated on the water surface and used as a floating pier, floating breakwater, or the like.
（従来の技術）
従来の浮桟橋や浮防波堤等の洋上浮游構造物は、工場や
ドック等において四角箱状に一体形成された中空状の鉄
筋コンクリート製の浮体を海や湖等の現場へ運搬し、ア
ンカーと連結した係留チェノの一端が四隅に固着して係
留されている。(Conventional technology) Conventional offshore floating structures such as floating piers and floating breakwaters are constructed by transporting a hollow reinforced concrete floating body integrally formed into a rectangular box shape at a factory or dock to a site in the sea, lake, etc. , One end of the mooring chain connected to the anchor is fixed and moored at the four corners.
（発明が解決しようとする課題）
このような従来の浮部構造物は、全体を工場のケーソン
製作ヤードやドック内で製造しているものであるため、
大型化するとその製造が大がかりとなり、コスト高とな
るとともに曳船時にも大型の曳き船が必要になり、経費
が大きくなるという問題がある。(Problems to be Solved by the Invention) Such conventional floating structures are manufactured entirely in a factory's caisson manufacturing yard or dock;
As the size increases, manufacturing becomes large-scale, which increases costs, and also requires a large towboat for towing, which increases costs.
本発明はこのような従来の問題にかんがみ、大型で強度
的に安定度が高いコンクリート製浮瀞構造物が低コスト
にて建造できる洋上浮游構造物の建造方法の提供を目的
としたものである。In view of these conventional problems, the present invention aims to provide a method for constructing a floating structure on the ocean that can be constructed at a low cost by constructing a large concrete floating structure with high strength and stability. .
（課題を解決するための手段）
上述の如き目的を達成するための本発明の洋上浮游構造
物の建造方法の特徴は、多角リング型の各辺を構成し、
両端に互いに突き合わせ配置になる角度をなす接合端面
を有する複数の中空状をしたコンクリートユニットをそ
れぞれ別々に成形し、その各コンクリートユニットの端
部外側に仮結合用の仮緊張支持部を設けておき、該コン
クリートユニットを水上に浮上させ、各接合端面の周縁
部に弾性止水パツキンを介在させて互いに隣り合うコン
クリートユニットの接合端面間を対向させるとともに、
その両コンクリートユニットの仮緊張支持部に緊張材の
両端を支持させてこれを緊張することにより各コンクリ
ートユニット間を仮結合させ、その後、前記弾性止水パ
ツキンにて囲まれる接合端面間の空間に連結部コンクリ
ートを打設するとともに、互いに対向配置の接合端面壁
及び前記連結部コンクリートを貫通させてＰＣ＃材を貫
通させ、前記連結部コンクリートの固化後、ＰＣ鋼材を
緊張して接合端面壁間を一体構造化させてリング状をし
な浮部構造物となすことにある。(Means for Solving the Problems) The feature of the method for constructing an offshore floating structure of the present invention for achieving the above-mentioned objects is that each side of a polygonal ring shape is configured,
A plurality of hollow concrete units having joint end faces at both ends that form an angle butt against each other are formed separately, and a temporary tension support part for temporary connection is provided on the outside of the end of each concrete unit. , the concrete unit is floated on water, and an elastic water-stop packing is interposed at the peripheral edge of each joint end face so that the joint end faces of adjacent concrete units face each other,
Both ends of the tendons are supported by the temporary tension support parts of both concrete units and are tensioned to temporarily connect each concrete unit, and then the space between the joint end faces surrounded by the elastic water-stop packing is Concrete for the joint is poured, and the PC# material is penetrated through the joint end walls arranged opposite to each other and the concrete for the joint, and after the concrete for the joint is solidified, the PC steel material is tensioned to connect the joint end walls. The purpose is to form a ring-shaped flexible floating part structure by integrating the structure.
（作用）
この洋上浮游構造物の建造方法では、工場のケーソン製
作ヤードや小型ドックにおいて中空状のコンクリートユ
ニットが成形され、その各コンクリートユニットを自ら
の浮力によって洋上に浮べ、定置箇所まで曵航する。定
置箇所もしくはその近くにおいて、各コンクリートユニ
ットを接合させる。接合に際し、止水パツキンを介して
接合端面を対向させ、外面の仮緊張支持部間の緊張材を
緊張して仮結合することにより、止水パツキンと両接合
端面によって囲まれる部分が密閉されることとなり、内
部の水を排出することによってドライな空間が成形され
る。その後、接合端面壁間にこのドライな空間をも貫通
させてＰＣ＠材を貫通させ、コンクリート打設後、ＰＣ
鋼材の両端を接合端面壁に支持させて緊張することによ
り、両接合端面壁及びその間に打設された連結部コンク
リートが剛構造に一体化される。(Function) In this method of constructing offshore floating structures, hollow concrete units are formed in a factory's caisson production yard or small dock, and each concrete unit is floated on the ocean by its own buoyancy and towed to its fixed location. . Each concrete unit is joined at or near its permanent location. When joining, the joint end surfaces are placed opposite to each other via the water-stop gasket, and the tension material between the temporary tension support parts on the outer surface is tensed and temporarily joined, thereby sealing the area surrounded by the water-stop gasket and both joint end surfaces. By draining the water inside, a dry space is created. After that, this dry space is also penetrated between the joint end walls to penetrate the PC@ material, and after concrete is poured, the PC
By supporting both ends of the steel material on the joint end walls and applying tension, both the joint end walls and the connecting concrete placed therebetween are integrated into a rigid structure.
（実施例） 次に本発明の実施の一例を図面について説明する。(Example) Next, an example of implementation of the present invention will be described with reference to the drawings.
第１図、第２図は本発明によって建造される洋上浮游構
造物を示している。この構造物Ａは全体が六角形をした
リング状をなしており、その六角形の各辺を個別のプレ
キャストコンクリートユニット１．１・・・・・・をも
って構成している。各コンクリートユニット１はそれ自
体で洋上に浮上する浮力を有するように中空の密閉構造
になっており、これらを互いに連結してリング状の構造
物Ａとしている。1 and 2 show an offshore floating structure constructed according to the present invention. This structure A has a hexagonal ring shape as a whole, and each side of the hexagon is constituted by an individual precast concrete unit 1.1. Each concrete unit 1 has a hollow sealed structure so as to have buoyancy to float on the ocean by itself, and is connected to each other to form a ring-shaped structure A.
次にこの構造物Ａの建造について説明する。Next, construction of this structure A will be explained.
まず各コンクリートユニット１．１′・・・・・・を端
面が互いに対向し、互いに隣り合うもの同志が所定の角
度をなすように成形する。その成形は、例えば洋上に滑
り込ませるための斜路を有する海浜のケーソン製作ヤー
ド、船舶やケーソンを製作するためのドライドツク、そ
の他の浮ドツク等を使用して行う、このコンクリートユ
ニット１は、第３図に示すように内部には複数の仕切２
．２・旧・・によって仕切られた空室３．３・・・・・
・を有し、周壁内には通常の鉄筋の他にＰＣ鋼線を挿通
してこれを緊張させ、縦横にプレストレスを付与したＰ
Ｃ構造となす、また、接合端面壁４．４にはあらかじめ
コンクリートユニット１間の連結のためのＰＣ鋼材挿通
孔５．５・・・・・・をあけておき、栓６をもって水密
性を維持させている。また、コンクリートユニット１の
接合端部の各両側壁外には、その側縁に沿って仮緊張支
持部７を成形しておく、この仮緊張支持部７は、例えば
第３図、第４図に示すように断面りの金具をボルト８ａ
によりアンカーナツト８ｂに固定したもの、第５図に示
すようにコンクリートユニット１の側面に凹部９を形成
し、その凹部９から接合端面４ａに到る貫通孔１ｏを開
口させたもの等、各種の構造とし得る。First, each concrete unit 1.1'... is formed so that its end faces face each other and adjacent ones form a predetermined angle. The concrete unit 1 is formed using, for example, a caisson manufacturing yard on the beach that has a ramp for sliding into the ocean, a dry dock for manufacturing ships and caissons, and other floating docks.This concrete unit 1 is shown in FIG. As shown in the figure, there are multiple partitions 2 inside.
．． 2. Vacant room partitioned by 3.3...
・In addition to regular reinforcing bars, PC steel wires are inserted into the surrounding wall to tension it, and prestress is applied vertically and horizontally.
C structure, and the joint end wall 4.4 is pre-drilled with a PC steel insertion hole 5.5 for connecting the concrete units 1, and a plug 6 is used to maintain watertightness. I'm letting you do it. In addition, a temporary tension support part 7 is formed outside each side wall of the joint end of the concrete unit 1 along the side edge thereof. Attach the cross-sectional metal fittings to the bolts 8a as shown in
There are various types of concrete units, such as one fixed to an anchor nut 8b by a concrete unit, and one in which a recess 9 is formed in the side surface of the concrete unit 1 and a through hole 1o is opened from the recess 9 to the joint end surface 4a, as shown in FIG. It can be a structure.
次いでこのように成形されたコンクリートユニット１．
１・・・・・・を洋上に浮べ構造物Ａが係留される場所
近くまで曳船し、洋上にて各コンクリートユニット１．
１・・・・・・間を連結させる。この連結に際しては、
第６図に示すように互いに接合しようとする再接合端面
４ａ、４ａの周囲の上縁を除く三方縁にゴム材等の弾性
を有する止水パツキン１１．１１を接着剤あるいは仮止
め具をもって貼着し、その両正水パツキン１１．１１が
互いに接合するように接合端面４ａ、４ａ間を対向させ
、仮緊張支持部７．７間に仮結合用のＰＣ鋼材１２．１
２・・・・・・を挿通し、両端をその仮緊張支持Ｍ７．
７に支持させて緊張する。これによって接合端面４ａ、
４ａ間に止水パツキン１１．１１が介在されて仮結合さ
せる。Next, the concrete unit formed in this way 1.
1 on the ocean and towed it near the place where floating structure A is moored, and each concrete unit 1.
1... Connect between. In this connection,
As shown in FIG. 6, waterproof packing 11.11 made of elastic material such as rubber is pasted with adhesive or temporary fasteners on three sides of the rejoining end surfaces 4a, 4a to be joined together, excluding the upper edges. The joint end surfaces 4a, 4a are made to face each other so that the two positive water packings 11.11 are joined to each other, and the PC steel material 12.1 for temporary connection is placed between the temporary tension support portions 7.7.
2..., and temporarily tension support M7.
I get nervous because I have 7 supporting me. As a result, the joint end surface 4a,
Water-stop gaskets 11 and 11 are interposed between 4a to temporarily connect them.
然る後、止水パツキン１１．１１によって囲まれる接合
端面間の接合部空間１３内の水をポンプにて抜き取りド
ライ空間を形成する。Thereafter, the water in the joint space 13 between the joint end faces surrounded by the water-stop gaskets 11, 11 is extracted by a pump to form a dry space.
次いで作業者が両コンクリートユニット１．１及び必要
によっては接合部空間１３内に入り、栓６を外して各Ｐ
Ｃ鋼材挿通孔５．５・・・・・・を開口させ、両接合端
面壁に貫通させて本結合用のＰＣａＣ工材、１４・・・
・・・を配設する。Next, the worker enters both concrete units 1.1 and, if necessary, the joint space 13, removes the plugs 6, and closes each P.
C steel material insertion holes 5.5... are opened and penetrated through both joint end walls to PCaC material for main bonding, 14...
... will be installed.
このようにしてＰＣ鋼材１−４１．１４・・団・を配設
した後、接合部空間１３内にコンクリート１５を打設し
、その固化を待って各２０ｍ材１４．１４・・・・・・
を緊張し、コンクリートユニット１．１間の結合を完了
する。After arranging the PC steel materials 1-41.14 in this way, concrete 15 is placed in the joint space 13, and after waiting for it to solidify, each 20m material 14.14...・
tension and complete the bond between concrete units 1.1.
なお、この連結作業は複数箇所を同時に進行させてもよ
く、一箇所づつ行ってもよい。Note that this connection work may be performed at a plurality of locations simultaneously, or may be performed one location at a time.
このようにして各コンクリートユニットｌ、１・・・・
・・間を結合させて六角形のリング状に組み立て、仮結
合用の部材を外し、所定場所に曳船し、係留して浮桟橋
やその他の洋上浮游構造物として使用する。In this way, each concrete unit l, 1...
...assembled into a hexagonal ring by connecting the parts, removing the temporary connecting members, towing it to a designated location, mooring it, and using it as a floating pier or other offshore floating structure.
（発明の効果）
上述の如く本発明の洋上浮游構造物の建造方法では、各
コンクリートユニットを互いに連結させてリング状の構
造物となるなめ、全体として安定性が良くなり、連結部
に大きな強度を要しなくなり、低コストにて浮部構造物
が建造できることとなったものであり、また小型のコン
クリートユニットを連結することによって大型の構造物
となすものであるため、大面積のコンクリート構造物製
作ヤードが不要となり、小型のドックやゲーソン製作ヤ
ードにて製作が可能になり、低コストにて安定性の高い
大型浮潜楕遺物の建造ができることとなったものである
。(Effects of the Invention) As described above, in the method of constructing an offshore floating structure of the present invention, each concrete unit is connected to each other to form a ring-shaped structure, which improves the stability as a whole and provides great strength to the connected parts. This eliminates the need for floating structures, making it possible to construct floating structures at low cost.Also, since a large structure can be constructed by connecting small concrete units, it is possible to construct a large-area concrete structure. This eliminates the need for a production yard, allowing production to be carried out at a small dock or geison production yard, making it possible to construct large floating elliptical relics with high stability at low cost.
更に本発明の方法では、各コンクリートユニットの連結
作業において止水パツキンを使用するとともに仮結合用
の緊張材を使用してドライな結合部空間を形成して本結
合を行うため、結合部分の品質の性状が良くなり、しか
も水中作業が少いため、作業の安全性が高い等の効果が
ある。Furthermore, in the method of the present invention, water-stop packing is used in the connection work of each concrete unit, and tension material for temporary bonding is used to form a dry joint space for final bonding, which improves the quality of the bonded parts. The properties of the water are improved, and because less work is required underwater, the work is safer.
図面は本発明の実施例を示すもので、第１図は建造され
る洋上浮游構造物の平面図、第２図は同側面図、第３図
はコンクリート二二゛ットの横断面図、第４図、第５図
は仮緊張支持部の別々の例の部分断面図、第６図は仮結
合状態の横断面図、第７図は本結合状態の＃［ｒ面図で
ある。
Ａ・・・・・・洋上浮游構造物、
１・・・・・・プレキャストコンクリートユニット、２
・・・・・・仕切、３・旧・・空室、４′・・団・接合
端面壁、４ａ・・・・・・接合端面、５・旧・・ＰＣ＠
材挿通挿通孔・・・・・・栓、７・・・・・・仮緊張支
持部、１１・・・・・・止水パツキン、
１２・・・・・・仮結合用のＰＣ鋼材、１３・・・・・
・接合端面間の接合部空間、１４・・・・・・本結合用
のＰＣ鋼材。The drawings show an embodiment of the present invention; Fig. 1 is a plan view of the offshore floating structure to be constructed, Fig. 2 is a side view of the same, Fig. 3 is a cross-sectional view of a 22-foot concrete structure; 4 and 5 are partial cross-sectional views of different examples of the temporary tension support portion, FIG. 6 is a cross-sectional view of the temporarily connected state, and FIG. 7 is a #[r side view of the fully connected state. A...Ocean floating structure, 1...Precast concrete unit, 2
・・・・・・Partition, 3・Old・・Vacant room, 4′・・Group・Joint end wall, 4a・・・Joint end face, 5・Old・・PC@
Material insertion hole...Plug, 7...Temporary tension support part, 11...Water stop packing, 12...PC steel material for temporary connection, 13・・・・・・
・Joint space between joint end faces, 14...PC steel material for main connection.
Claims (1)
配置になる角度をなす接合端面を有する複数の中空状を
したコンクリートユニットをそれぞれ別々に成形し、そ
の各コンクリートユニットの端部外側に仮結合用の仮緊
張支持部を設けておき、該コンクリートユニットを水上
に浮上させ、各接合端面の周縁部に弾性止水パッキンを
介在させて互いに隣り合うコンクリートユニットの接合
端面間を対向させるとともに、その両コンクリートユニ
ットの仮緊張支持部に緊張材の両端を支持させてこれを
緊張することにより各コンクリートユニット間を仮結合
させ、その後、前記弾性止水パッキンにて囲まれる接合
端面間の空間に連結部コンクリートを打設するとともに
、互いに対向配置の接合端面壁及び前記連結部コンクリ
ートを貫通させてＰＣ鋼材を貫通させ、前記連結部コン
クリートの固化後、ＰＣ鋼材を緊張して接合端面壁間を
一体構造化させてリング状をした浮游構造物となすこと
を特徴としてなる洋上浮游構造物の建造方法。A plurality of hollow concrete units forming each side of a polygonal ring shape and having joint end surfaces at both ends that form an angle butt each other are formed separately, and temporarily joined to the outside of the end of each concrete unit. A provisional tension support section is provided for use, and the concrete unit is floated above the water, and an elastic water-stop packing is interposed at the peripheral edge of each joint end surface to make the joint end surfaces of adjacent concrete units face each other. Each concrete unit is temporarily joined by supporting both ends of the tendon material on the temporary tension support parts of both concrete units and tensioning it, and then connected to the space between the joint end surfaces surrounded by the elastic water-stop packing. At the same time, the PC steel material is penetrated through the joint end walls and the joint concrete that are arranged opposite to each other, and after the joint concrete has solidified, the PC steel material is tensed to integrate the joint end walls. A method for constructing an offshore floating structure characterized by structuring it into a ring-shaped floating structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1172557A JPH068116B2 (en) | 1989-07-04 | 1989-07-04 | Offshore floating structure construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1172557A JPH068116B2 (en) | 1989-07-04 | 1989-07-04 | Offshore floating structure construction method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03114992A true JPH03114992A (en) | 1991-05-16 |
| JPH068116B2 JPH068116B2 (en) | 1994-02-02 |
Family
ID=15944064
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1172557A Expired - Lifetime JPH068116B2 (en) | 1989-07-04 | 1989-07-04 | Offshore floating structure construction method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH068116B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08156878A (en) * | 1994-12-05 | 1996-06-18 | Ohbayashi Corp | Method for connecting floating body structure |
| CN113529648A (en) * | 2021-07-17 | 2021-10-22 | 包文峰 | Municipal administration is ponding drainage device for flood discharge |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015094196A (en) * | 2013-11-14 | 2015-05-18 | ゼニヤ海洋サービス株式会社 | Joint part cut-off material for segment frame and joining method of segment frame using cut-off material |
-
1989
- 1989-07-04 JP JP1172557A patent/JPH068116B2/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08156878A (en) * | 1994-12-05 | 1996-06-18 | Ohbayashi Corp | Method for connecting floating body structure |
| CN113529648A (en) * | 2021-07-17 | 2021-10-22 | 包文峰 | Municipal administration is ponding drainage device for flood discharge |
| CN113529648B (en) * | 2021-07-17 | 2022-09-20 | 新疆凯悦鑫工程建设有限责任公司 | Municipal administration is ponding drainage device for flood discharge |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH068116B2 (en) | 1994-02-02 |
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| EXPY | Cancellation because of completion of term |