JPH0724412Y2 - Floating body of a breakwater - Google Patents
Floating body of a breakwaterInfo
- Publication number
- JPH0724412Y2 JPH0724412Y2 JP1988171237U JP17123788U JPH0724412Y2 JP H0724412 Y2 JPH0724412 Y2 JP H0724412Y2 JP 1988171237 U JP1988171237 U JP 1988171237U JP 17123788 U JP17123788 U JP 17123788U JP H0724412 Y2 JPH0724412 Y2 JP H0724412Y2
- Authority
- JP
- Japan
- Prior art keywords
- floating body
- concrete
- plate
- upper plate
- 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
Description
【考案の詳細な説明】 ［産業上の利用分野］ 本考案は、養殖施設等の消波を目的とする漁場整備、漁
船等の保護を目的とする漁港整備等に用いられる浮防波
堤の浮体に関するものである。[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a floating body of a floating breakwater used for maintenance of fishing grounds for the purpose of breaking waves in aquaculture facilities, and maintenance of fishing ports for the protection of fishing boats. It is a thing.
［従来の技術］ 浮防波堤は、第５図に示す様に、水面ａに浮かぶ浮体ｂ
を海底に固定したアンカーｃに係留索ｄを介して係留
し、進入する波ｅを前記浮体ｂにより消波しているが、
一般に波の周期が短い短波長波を消波対象とする場合、
浮体ｂの波ｅの進入方向断面形状を箱形に形成してい
る。而して、従来の箱形断面形状の浮体には鋼板製のも
の及びコンクリート製のものがある。[Prior Art] As shown in FIG. 5, a floating breakwater is a floating body b floating on a water surface a.
Is moored to an anchor c fixed to the seabed via a mooring line d, and the incoming wave e is extinguished by the floating body b.
Generally, when a short wavelength wave with a short cycle is targeted for extinction,
The cross section of the floating body b in the wave e direction is formed in a box shape. Thus, conventional floating bodies having a box-shaped cross-section include those made of steel plate and those made of concrete.
従来の鋼板製の箱形断面形状の浮体ｂを、第３図により
説明すると、底板ｆ及び４面に配置された側板ｈ並に上
部板ｇにより四角形の箱形の外殻ｓを製作し、外殻ｓ内
部に中空部ｉを形成すると共に、外殻ｓ内面に沿い補強
用の桁材ｊを固着する。A conventional floating body b having a box-shaped cross-section made of steel plate will be described with reference to FIG. 3. A rectangular box-shaped outer shell s is manufactured by a bottom plate f and side plates h arranged on four sides and an upper plate g. A hollow portion i is formed inside the outer shell s, and a reinforcing beam j is fixed along the inner surface of the outer shell s.
図中ｋは補剛材、ｌは柱材である。In the figure, k is a stiffening material, and 1 is a pillar material.
従来のコンクリート製の箱形断面形状の浮体ｂを第４図
により説明すると、浮体ｂは、外殻ｔ及び外殻ｔの内部
中空部ｎに設けられ上部ｏ及び底部ｐ並に側部ｑを連結
するようにした連結材ｒが鉄筋コンクリート、プレスト
レスコンクリート等のコンクリートにより一体に形成さ
れている。A conventional floating body b having a box-shaped cross section made of concrete will be described with reference to FIG. 4. The floating body b is provided in an outer shell t and an inner hollow portion n of the outer shell t, and includes a top portion o, a bottom portion p, and side portions q. The connecting material r that is connected is integrally formed of concrete such as reinforced concrete or prestressed concrete.
［考案が解決しようとする課題］ しかしながら、上述の従来の箱形断面形状の浮体ｂに
は、下記の様な問題があった。[Problems to be Solved by the Invention] However, the above-described conventional floating body b having a box-shaped cross section has the following problems.
（Ｉ）鋼板製の浮体ｂの場合、浮体ｂが海上及び海中に
設置されているため、特に海上の飛沫帯に露出している
部分の鋼材の腐食が激しく、事前に多くの腐食代を見込
んだ鋼材量を必要とし、又、頻繁な塗装を必要とするた
め保守費が増大し、更に、消波性能上の望ましい重心高
さを得るための構造を必要とすること等により不経済で
ある。(I) In the case of the steel plate floating body b, since the floating body b is installed on the sea or in the sea, the corrosion of the steel material particularly in the part exposed to the splash zone on the sea is severe, and a large amount of corrosion allowance is expected in advance. It is uneconomical because it requires a large amount of steel material and requires frequent coating, which increases maintenance costs and requires a structure to obtain the desired height of the center of gravity in terms of wave-dissipation performance. .
（II）コンクリート製の浮体ｂの場合、コンクリートに
ひび割れを生じて浮体内部が浸水し沈没する恐れがあ
り、このひび割れを防止するための品質管理上のコスト
が増大し、又製造には型枠を必要とするため、これもコ
スト増大の原因となっている。(II) In the case of a concrete-made floating body b, there is a risk that the concrete will crack and the interior of the floating body will be submerged and sink, which will increase the cost in quality control for preventing this cracking, and the formwork for manufacturing. This also causes an increase in cost.
（III）鋼板製、コンクリート製の何れの浮体ｂでも、
その大きさ、重量がフローティングクレーン等の揚重機
の制限を超えると、ドックで製作して進水させなければ
ならず、製作場所の制限を受けることが多い。(III) In any floating body b made of steel plate or concrete,
When the size and weight exceed the limits of lifting machines such as floating cranes, they have to be built in a dock for launching, which often limits the place of production.
従って、本考案は、上述の実情に鑑み、鋼板製の浮体及
びコンクリート製の浮体が夫々有する上述の問題点を解
決することを目的としてなしたものである。Therefore, the present invention has been made in view of the above circumstances and has as its object to solve the above-mentioned problems that a floating body made of a steel plate and a floating body made of concrete have respectively.
［課題を解決するための手段］ 本考案は、底板及び側板並に上部板により断面形状が箱
形の中空状の鋼材製外殻を形成し、前記上部板上面に、
前記浮体の喫水、重心高さを調整し得る様に、所定の厚
さのコンクリートを打設したことを特徴とするものであ
る。[Means for Solving the Problem] The present invention forms a hollow steel outer shell having a box-shaped cross section by a bottom plate, a side plate, and an upper plate, and the upper plate has an upper surface,
It is characterized in that concrete having a predetermined thickness is placed so that the draft and height of the center of gravity of the floating body can be adjusted.
［作用］ 上部板の上面にコンクリート材が打設されているため上
部板上面の腐食が防止され、又上部板上面のコンクリー
ト打設量、或いは上部板上面と底板内面のコンクリート
打設量を調整することにより、消波性能上必要な喫水、
重心高さを容易に定めることが出来、上部板上のコンク
リートにひび割れが生じても上部板により浸水を防止し
浮体の沈没を回避することができ、浮防波堤の寿命を延
ばすことができる。喫水、重心高さの調整は、底板内面
に砂、石材等コンクリート以外の材料を入れる場合はこ
の材料の量を調整することにより行う。[Operation] Since concrete material is placed on the upper surface of the upper plate, corrosion of the upper plate is prevented, and the amount of concrete placed on the upper surface of the upper plate or the amount of concrete placed on the inner surfaces of the upper plate and the bottom plate is adjusted. By doing so, the draft required for wave-dissipating performance,
The height of the center of gravity can be easily determined, and even if the concrete on the upper plate is cracked, the upper plate prevents water from entering and the sinking of the floating body can be avoided, and the life of the floating breakwater can be extended. The draft and height of the center of gravity are adjusted by adjusting the amount of this material when sand, stone or other material other than concrete is put on the inner surface of the bottom plate.
［実施例］ 以下、図面に基づき本考案の実施例を説明する。[Embodiment] An embodiment of the present invention will be described below with reference to the drawings.
第１図は本考案の一実施例を示したもので、所定の上下
間隔で平行に水平方向に延びる鋼材製矩形平板状の底板
１及び上部板２の周縁部４面に、垂直方向に延びる鋼材
製側板４を溶接等により固着することにより外殻14を形
成し、前記側板４の上端を前記上部板２よりも上方に延
ばし、該延長部と上部板２上との間の空間にコンクリー
ト６を打設し、前記外殻14の内側に形成された中空部７
に補強用の桁材９を固着し、前記底板１上面にコンクリ
ート10を打設する。FIG. 1 shows an embodiment of the present invention, in which a rectangular plate-like bottom plate 1 and an upper plate 2 made of a steel material extending horizontally in parallel at predetermined vertical intervals extend vertically to the peripheral surface 4 surface. An outer shell 14 is formed by fixing the steel side plate 4 by welding or the like, the upper end of the side plate 4 is extended above the upper plate 2, and concrete is provided in a space between the extension and the upper plate 2. 6 is cast, and a hollow portion 7 formed inside the outer shell 14
The reinforcing girder material 9 is fixedly attached to the bottom plate 1, and concrete 10 is placed on the upper surface of the bottom plate 1.
なお、11は補剛材、12は底板１と上部板２とを結合する
柱材である。Reference numeral 11 is a stiffening material, and 12 is a pillar material for connecting the bottom plate 1 and the upper plate 2.
浮体５の鋼材製の上部板２は、コンクリート６により覆
われているため、直接海上の飛沫帯に露出することが無
く、上部板２の表面の腐食を防止することが出来る。
又、消波性能上必要な喫水、重心高さは、上部板２及び
底板１上のコンクリート6,10の量と配分とを調整するこ
とにより鋼材の量と関係なく容易に定めることが可能と
なる。更に、上部板２上のコンクリート６にひび割れが
生じても鋼材製の上部板２により防水するので漏水が中
空部７に侵入することによる浮体の沈没を回避すること
が出来る。Since the steel upper plate 2 of the floating body 5 is covered with the concrete 6, it is not directly exposed to the splash zone on the sea, and the corrosion of the surface of the upper plate 2 can be prevented.
Further, the draft and the height of the center of gravity required for wave-dissipating performance can be easily determined by adjusting the amount and distribution of the concrete 6 and 10 on the upper plate 2 and the bottom plate 1 regardless of the amount of steel material. Become. Further, even if the concrete 6 on the upper plate 2 is cracked, the upper plate 2 made of steel is used for waterproofing, so that it is possible to prevent sinking of the floating body due to water leakage entering the hollow portion 7.
第２図は本考案の他の実施例を示したもので、上部板13
の上面を凹凸状に形成し、コンクリート６を打設し得る
ようにすると共に、上部板13の強度を高め得る様にした
ものである。FIG. 2 shows another embodiment of the present invention, which is an upper plate 13
The upper surface of the upper plate 13 is formed in an uneven shape so that the concrete 6 can be poured and the strength of the upper plate 13 can be increased.
該実施例でも、第１図の実施例の場合と同様な作用をも
たらすことが出来る。Also in this embodiment, the same operation as in the case of the embodiment of FIG. 1 can be brought about.
なお、底板１上のコンクリート10は底板１の腐食止に役
立つが、底板１は上部板２と比較して本来腐食の量が少
ない部分であるので、コンクリート10はバラストの目的
で用いられることが多く、従ってこの目的の場合には、
コンクリート10の代りに他の材料、例えば砂、石材等コ
ンクリート以外の材料にすることが可能であり、又、コ
ンクリート6,10の中に補強のための配筋を施工し上部板
２、底板１を更に経済的に設計することも出来る。The concrete 10 on the bottom plate 1 is useful for preventing corrosion of the bottom plate 1, but since the bottom plate 1 is a portion that originally has a smaller amount of corrosion than the upper plate 2, the concrete 10 may be used for the purpose of ballast. Many, and therefore for this purpose,
Instead of concrete 10, it is possible to use other materials such as sand, stone, etc. other than concrete. Moreover, reinforcing bars are installed in concrete 6 and 10 to provide top plate 2 and bottom plate 1. Can be designed more economically.
［考案の効果］ 本考案によれば、下記の様な種々の優れた効果を奏し得
る。[Effects of the Invention] According to the present invention, various excellent effects as described below can be obtained.
（Ｉ）鋼材の腐食の激しい部分である上部板の腐食を防
止出来るので、使用鋼材量が減少し経済性を高め得る。(I) Since it is possible to prevent corrosion of the upper plate, which is a portion where the steel material is severely corroded, the amount of steel material used can be reduced and the economic efficiency can be improved.
（II）浮体の喫水、重心高さを安価なコンクリート、
砂、石材等で容易且つ正確に調整出来るので、消波性能
を確保し得ると共に経済的にも有利となる。(II) Draft of floating body, concrete with low height of center of gravity,
Since it can be easily and accurately adjusted with sand, stone, etc., it is possible to ensure the wave-dissipating performance and also be economically advantageous.
（III）鉄筋コンクリート、プレストレストコンクリー
ト製浮体の様なひび割れによる漏水の心配が無く、浮防
波堤の寿命を延ばすことができる。(III) It is possible to extend the life of the floating breakwater without fear of water leakage due to cracks such as reinforced concrete and prestressed concrete floating bodies.
（IV）揚重機の制限を超える大きさ、重さの浮体を製作
する場合、鋼材製外殻部を岸壁等の陸上で作り、それを
フローティングクレーンで海に浮上させた後にコンクリ
ートを打設することが可能なので、従来の浮体よりも相
当大きなものまでをドックを使用しないで製作が可能と
なり、製作場所の制限が少なくなり、必要な揚重機も小
さなものですむ。(IV) When manufacturing a floating body with a size and weight that exceeds the limit of a lifting machine, a steel outer shell is made on land such as a quay, and it is floated to the sea by a floating crane before placing concrete. Therefore, it is possible to manufacture a much larger floating body than the conventional floating body without using a dock, and there are fewer restrictions on the manufacturing location, and a small lifting machine is required.
（Ｖ）コンクリートの打設は、従来の鉄筋コンクリー
ト、プレストレストコンクリート製浮体と異なり、型枠
を用いなくて行えるので施工が容易になり、コストも安
くなる。(V) Unlike conventional reinforced concrete and prestressed concrete floating bodies, concrete pouring can be performed without using a formwork, which facilitates construction and reduces costs.
【図面の簡単な説明】 第１図は本考案の浮防波堤の浮体の一実施例の部分断面
図、第２図は本考案の浮防波堤の浮体の他の実施例の部
分断面図、第３図は従来の浮防波堤の浮体の一例の部分
断面図、第４図は従来の浮防波堤の他の例の部分断面
図、第５図は箱型断面形状の浮体を用いた一般的な浮防
波堤の斜視図である。 図中１は底板、2,13は上部板、３は水面、４は側板、５
は浮体、6,10はコンクリート、14は外殻を示す。BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a partial sectional view of an embodiment of a floating breakwater floating body according to the present invention, and FIG. 2 is a partial sectional view of another embodiment of a floating breakwater floating body according to the present invention. Figure is a partial sectional view of an example of a conventional floating breakwater, Figure 4 is a partial sectional view of another example of a conventional floating breakwater, and Figure 5 is a general floating breakwater using a box-shaped floating body. FIG. In the figure, 1 is a bottom plate, 2 and 13 are upper plates, 3 is a water surface, 4 is a side plate, 5
Is a floating body, 6 and 10 are concrete, and 14 is an outer shell.
Claims (3)
箱形の中空状の鋼材製外殻を形成し、前記上部板上面
に、前記浮体の喫水、重心高さを調整し得る様に、所定
の厚さのコンクリートを打設したことを特徴とする浮防
波堤の浮体。1. A bottom shell, a side plate, and an upper plate as well as a hollow shell made of a steel material having a box-shaped cross-section, and the draft and the height of the center of gravity of the floating body can be adjusted on the upper surface of the upper plate. A floating body of a breakwater, which is made by placing concrete of a predetermined thickness.
箱形の中空状の鋼材製外殻を形成し、前記上部板上面及
び底板内面に、前記浮体の喫水、重心高さを調整し得る
様に、所定の厚さのコンクリートを打設したことを特徴
とする浮防波堤の浮体。2. A hollow steel shell having a box-shaped cross section is formed by a bottom plate, a side plate, and an upper plate, and the draft and height of the center of gravity of the floating body are adjusted on the upper plate upper surface and the bottom plate inner surface. A floating body of a breakwater, which is made by placing concrete of a predetermined thickness so as to obtain.
え、前記底板内面に砂、石材等コンクリート以外の材料
を収納したことを特徴とする請求項２記載の浮防波堤の
浮体。3. The floating body of the floating breakwater according to claim 2, wherein a material other than concrete such as sand or stone is stored on the inner surface of the bottom plate instead of the concrete cast on the inner surface of the bottom plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988171237U JPH0724412Y2 (en) | 1988-12-29 | 1988-12-29 | Floating body of a breakwater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988171237U JPH0724412Y2 (en) | 1988-12-29 | 1988-12-29 | Floating body of a breakwater |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0293333U JPH0293333U (en) | 1990-07-25 |
| JPH0724412Y2 true JPH0724412Y2 (en) | 1995-06-05 |
Family
ID=31462890
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988171237U Expired - Fee Related JPH0724412Y2 (en) | 1988-12-29 | 1988-12-29 | Floating body of a breakwater |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0724412Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107600345A (en) * | 2017-09-22 | 2018-01-19 | 上海电力设计院有限公司 | Armored concrete surface floating body and water surface floating platform |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5934579Y2 (en) * | 1980-01-21 | 1984-09-25 | 日立造船株式会社 | floating wave bank |
-
1988
- 1988-12-29 JP JP1988171237U patent/JPH0724412Y2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0293333U (en) | 1990-07-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP3276086B1 (en) | Gravity foundation for the installation of offshore wind turbines | |
| US3022759A (en) | Concrete floating wharf | |
| EP0807052A1 (en) | A floating device | |
| JPH0724412Y2 (en) | Floating body of a breakwater | |
| JP2012077578A (en) | Work scaffolding and method for constructing the same | |
| US4157695A (en) | Construction unit, such as quay, container or platform | |
| JP2021147946A (en) | Jacket, jacket structure, and jacket structure construction method | |
| US4037423A (en) | Process for producing a connecting construction unit, such as a quay, container or platform | |
| JP3212514B2 (en) | Environmentally friendly floating structure and method of manufacturing the same | |
| KR102681814B1 (en) | pier for marine bridge having spiral protrusion and manufacturing method thereof | |
| KR102551516B1 (en) | Floating body | |
| CN1175232A (en) | Floating device | |
| KR20230039911A (en) | Installation structure of sinker chain for sunken ship | |
| KR100911836B1 (en) | High strength barge | |
| JPH039252B2 (en) | ||
| JPH0444511A (en) | Construction of breakwater | |
| JPH0726531A (en) | Building method of maritime landing bridge | |
| KR100386973B1 (en) | The sea floor base concrete construction and method of building the same | |
| JPS6042121Y2 (en) | Piles for constructing underwater structures | |
| JP3380341B2 (en) | Repair method for floating structures | |
| JP2561176B2 (en) | Vertical mooring template installation method for floating structures | |
| JPH039251B2 (en) | ||
| JPH0526094Y2 (en) | ||
| JPH0841893A (en) | Manufacture of caisson bottom slab section and bottom slab section structure of caisson | |
| KR20240040523A (en) | pier for marine bridge having spiral protrusion and manufacturing method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |