JPH06101215A - Supporting structure for pontoon by use of outside coating steel pipe pile - Google Patents
Supporting structure for pontoon by use of outside coating steel pipe pileInfo
- Publication number
- JPH06101215A JPH06101215A JP24608792A JP24608792A JPH06101215A JP H06101215 A JPH06101215 A JP H06101215A JP 24608792 A JP24608792 A JP 24608792A JP 24608792 A JP24608792 A JP 24608792A JP H06101215 A JPH06101215 A JP H06101215A
- Authority
- JP
- Japan
- Prior art keywords
- steel pipe
- pipe pile
- layer
- resin
- hardness
- 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
Landscapes
- Revetment (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
Description
【0001】[0001]
【産業上の利用分野】本発明は、浮桟橋の外面被覆鋼管
杭による支持構造に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a support structure of a floating jetty with an outer surface coated steel pipe pile.
【0002】[0002]
【従来の技術】従来、海洋、港湾等の杭として使用され
る鋼材は、厳しい使用環境にさらされ、その中でも干満
帯の腐食は深刻な問題である。そのために、ポリオレフ
イン樹脂や熱硬化性樹脂の重防食被覆鋼材が広く市販さ
れるようになった。これらの重防食被覆鋼材は防食性の
みならず流木等の衝撃にも充分耐えられるような機械的
性質を保持する必要がある。ところで近年有脚浮体式係
船岸用支持杭として、この重防食被覆鋼材が使用される
ようになり、浮体式係船岸の支持ローラーが接触する部
分は局部的に大荷重がかかり、塗膜が剥離するという問
題がある。2. Description of the Related Art Conventionally, steel materials used for piles in the ocean, harbors, etc. are exposed to a severe environment of use, and corrosion of tidal zones is a serious problem. Therefore, heavy-corrosion coated steel materials such as polyolefin resins and thermosetting resins have been widely marketed. These heavy anticorrosion coated steel materials are required to have not only anticorrosion properties but also mechanical properties that can sufficiently withstand the impact of driftwood and the like. By the way, in recent years, this heavy anticorrosion coated steel material has come to be used as a support pile for a floating mooring berth, and a large load is locally applied to the part where the supporting roller of the floating mooring shore comes into contact, and the coating film peels There is a problem of doing.
【0003】そこで、支持杭の外観を保持し、かつ被覆
の耐久性を向上させるために、特開平4−71842号
公報のように、ポリオレフイン樹脂もしくは熱硬化性樹
脂を防食被覆層とし、この防食被覆層の表面に強度プラ
スチックを被覆してなる強化プラスチック複合被覆鋼材
において、防食被覆層と強度プラスチックとの界面に介
在させる植毛材として無機系繊維若しくは有機系繊維を
散布量に用いることによって、衝撃、磨耗等の機械的作
用に起因する防食被覆層の損傷を防止した複合被覆鋼材
が知られている。Therefore, in order to maintain the appearance of the support pile and improve the durability of the coating, a polyolefin resin or a thermosetting resin is used as an anticorrosion coating layer as disclosed in Japanese Patent Laid-Open No. 4-71842. In a reinforced plastic composite coated steel material in which the surface of the coating layer is coated with a strength plastic, by using an inorganic fiber or an organic fiber as a flocking material to intervene at the interface between the anticorrosion coating layer and the strength plastic, the impact is improved. A composite coated steel material in which damage to the anticorrosion coating layer due to mechanical action such as abrasion is prevented is known.
【0004】[0004]
【発明が解決しようとする課題】しかしながら、上記し
たような複合被覆鋼材においては、確かに衝撃、磨耗等
の機械的作用による損傷は防止することが出来るが、浮
体式係船岸の支持ローラーにて保持する構造においては
接触する部分は局部的に大荷重がかかり、そのために支
持ローラーの硬度が高いと支持杭を前述複合被覆して
も、一方が硬いために被覆が損傷を起こすという問題が
あった。However, in the composite coated steel material as described above, it is possible to prevent damage due to mechanical action such as impact and abrasion, but it is possible to use the support roller on the floating mooring shore. In the holding structure, a large load is locally applied to the contacting part.Therefore, if the hardness of the supporting roller is high, even if the supporting pile is compositely coated as described above, there is a problem that the coating is damaged because one side is hard. It was
【0005】[0005]
【課題を解決するための手段】このような問題を解消せ
るべく、本発明者らは鋭意開発を重ねた結果、鋼管杭と
樹脂ローラーとの硬度の調和により、両者の関係を明確
にすることで、耐久性の向上を図ることを提供するもの
である。その発明の要旨とするところは、下地処理層、
防食被覆層及び塗膜硬度ショアーD硬度55以上の高強
度保護層を順次積層した外面被覆鋼管杭を支持杭とし、
ショアーD硬度35〜50の樹脂ロールを浮桟橋に取付
け、該支持杭と接触させて保持させたことを特徴とする
浮桟橋の外面被覆鋼管杭による支持構造にある。[Means for Solving the Problems] In order to solve such a problem, the inventors of the present invention have made earnest developments, and as a result, clarified the relationship between the steel pipe pile and the resin roller by harmony of the hardness. Therefore, it is intended to improve the durability. The gist of the invention is that a base treatment layer,
An outer surface coated steel pipe pile in which a high-strength protective layer having a corrosion protection coating layer and a coating hardness Shore D hardness of 55 or more is sequentially laminated is used as a support pile,
A support structure is provided by an outer surface covered steel pipe pile of a floating pier, characterized in that a resin roll having a Shore D hardness of 35 to 50 is attached to the floating pier and held in contact with the supporting pile.
【0006】以下本発明について図面に従って実施例に
て詳細に説明する。図1は浮桟橋の概略図である。図1
に示すように浮桟橋7を海岸2中に鋼管杭1によって保
持させて浮体式係船岸として浮上させ、船3の停泊する
場所を構成するものである。図2は本発明に係る浮桟橋
用高強度鋼管杭の説明図である。図において、1は鋼管
杭、4は高強度被覆層、8は樹脂ローラー、7は浮桟橋
である。このように浮桟橋用高強度鋼管杭は鋼管杭の表
面の樹脂ローラーが接触して、波や海水の満潮、干潮に
よって、水位が上下する関係から常に上下動するもので
ある。The present invention will be described below in detail with reference to the accompanying drawings. FIG. 1 is a schematic view of a floating jetty. Figure 1
As shown in (1), the floating pier 7 is held in the shore 2 by the steel pipe piles 1 to be levitated as a floating mooring berth, and constitutes a place for the ship 3 to anchor. FIG. 2 is an explanatory view of a high-strength steel pipe pile for a floating pier according to the present invention. In the figure, 1 is a steel pipe pile, 4 is a high-strength coating layer, 8 is a resin roller, and 7 is a floating jetty. In this way, the high-strength steel pipe pile for a floating pier constantly moves up and down because the resin roller on the surface of the steel pipe pile contacts and the water level rises and falls due to waves, seawater high tide, and low tide.
【0007】図3は浮桟橋の支持構造を示す詳細断面図
である。図に示すように鋼管杭1を囲んで4箇所の樹脂
ローラー8によって支持され、浮桟橋7を横方向に固定
されると共に上下に移動するように構成されている。符
号6は浮桟橋7に流木等の衝撃を防ぐための保護材であ
り、また5は樹脂ローラー8の波等による鋼管杭1への
衝撃を防ぎ、しかも鋼管杭1と樹脂ローラー8とが柔ら
かく接触保持するためのクッション材である。FIG. 3 is a detailed sectional view showing the support structure of the floating pier. As shown in the figure, the steel pipe pile 1 is surrounded and supported by four resin rollers 8, and the floating pier 7 is fixed laterally and moved vertically. Reference numeral 6 is a protective material for preventing the floating pier 7 from impact such as driftwood, and reference numeral 5 prevents impact on the steel pipe pile 1 due to waves of the resin roller 8, and the steel pipe pile 1 and the resin roller 8 are soft. A cushioning material for holding in contact.
【0008】図4は鋼管杭の重防食被覆材の一部断面図
である。図4に示すように鋼管杭1の表面上にプライマ
ー層である下地処理層9を設け、その上にウレタンエラ
ストマー樹脂層から成る防食被覆層10、高強度保護層
11を設けた浮桟橋用高強度鋼管杭である。このように
4層タイプとした理由は下地処理層9とウレタンエラス
トマー樹脂層から成る防食被覆層10で付着性、耐水
性、耐衝撃性、絶縁抵抗性を保有し、高強度保護層11
で耐荷重衝撃性を特に重要視し、それぞれ優れた性質を
付与させたものである。各々4層の好適な被覆厚さとし
ては、下地処理層9が15〜60μm、防食被覆層10
が2〜6mm、高強度保護層11は1〜10mmであ
る。FIG. 4 is a partial sectional view of a heavy anticorrosion coating material for a steel pipe pile. As shown in FIG. 4, a base treatment layer 9 which is a primer layer is provided on the surface of the steel pipe pile 1, and an anticorrosion coating layer 10 made of a urethane elastomer resin layer and a high-strength protection layer 11 are provided on the surface treatment layer 9 for a floating bridge. It is a steel pipe pile. The reason why the four-layer type is used is that the undercoating layer 9 and the anticorrosion coating layer 10 made of a urethane elastomer resin layer have adhesiveness, water resistance, impact resistance, and insulation resistance, and the high-strength protective layer 11
In particular, the load-bearing impact resistance is given special importance and excellent properties are given to each. The preferable coating thickness of each of the four layers is 15 to 60 μm for the base treatment layer 9 and the anticorrosion coating layer 10.
Is 2 to 6 mm, and the high-strength protective layer 11 is 1 to 10 mm.
【0009】被覆の方法は、鋼管杭の防食面をグリット
ブラスト、サンドブラスト等のブラスト処理を行い、清
浄にした後、下地処理層9を被覆する。下地処理層9は
鋼管杭表面と防食被覆層10、例えばウレタンエラスト
マー樹脂層との間の接着剤である。被覆材料はエポキシ
樹脂プライマーまたはウレタン樹脂プライマー等の有機
樹脂プライマーで、ウレタンエラストマー樹脂層との密
着性に優れたものが用いられる。ウレタンエラストマー
樹脂層は長期防食層である。高強度保護層11は耐荷重
衝撃保護層である。この高強度保護層11は浮桟橋を支
える樹脂ローラーが接触する鋼管杭の被覆部にのみ用い
るものである。As a coating method, the anticorrosive surface of the steel pipe pile is blasted by grit blasting, sand blasting or the like to clean it, and then the undercoating layer 9 is coated. The base treatment layer 9 is an adhesive between the surface of the steel pipe pile and the anticorrosion coating layer 10, for example, a urethane elastomer resin layer. The coating material is an organic resin primer such as an epoxy resin primer or a urethane resin primer, which has excellent adhesion to the urethane elastomer resin layer. The urethane elastomer resin layer is a long-term anticorrosion layer. The high-strength protective layer 11 is a load-bearing impact protective layer. This high-strength protective layer 11 is used only for the coating portion of the steel pipe pile which is in contact with the resin roller supporting the floating jetty.
【0010】高強度保護層11は塗膜硬度がショアーD
55以上の高強度ウレタンエラストマー樹脂または、繊
維強化ウレタンエラストマー樹脂等の外荷重及び衝撃力
に耐える高強度材料を用いる。高強度保護層11は、本
発明の性能を損な和無ければ美観を保つ意味で、着色を
施す等を行っても、全く差しつかえない。また、仮に防
食被覆層10が、ショアーD55以上の高強度であれ
ば、高強度保護層11の要求性能も持ち合わせているの
で、防食被覆層10のみでも充分な耐久性を有する。The coating strength of the high-strength protective layer 11 is Shore D.
A high-strength urethane elastomer resin having a strength of 55 or more, or a high-strength material capable of withstanding an external load and an impact force such as a fiber-reinforced urethane elastomer resin is used. The high-strength protective layer 11 can be colored at all in order to maintain its aesthetic appearance unless the performance of the present invention is impaired. Further, if the anticorrosion coating layer 10 has a high strength of Shore D55 or higher, the anticorrosion coating layer 10 alone has sufficient durability because it has the required performance of the high strength protective layer 11.
【0011】一方、樹脂ロールも同様の樹脂を用い、し
かも前記した鋼管杭の被覆より、少し柔らかい程度の被
覆材を用いるのが望ましい。すなわち、樹脂ローラーの
塗膜硬度はショアー硬度Dが35〜50の樹脂ロールを
使用する必要がある。この理由は樹脂ローラーの塗膜硬
度はショアー硬度Dが50を超え、しかも鋼管杭の被覆
層の塗膜硬度を55超えると両者の関係から鋼管杭の被
覆層も損傷することになる。また、逆に樹脂ロールのシ
ョアー硬度Dが35未満であると樹脂ローラーが短時間
で損傷し、従ってロール交換を頻繁に行なわなければコ
スト高となる。On the other hand, it is desirable to use the same resin for the resin roll and to use a coating material that is a little softer than the coating of the steel pipe pile described above. That is, it is necessary to use a resin roll having a Shore hardness D of 35 to 50 as the coating film hardness of the resin roller. The reason for this is that if the coating hardness of the resin roller exceeds 50 Shore Shore D and exceeds 55 the coating hardness of the coating layer of the steel pipe pile, the coating layer of the steel pipe pile will also be damaged due to the relationship between the two. On the other hand, if the Shore hardness D of the resin roll is less than 35, the resin roller will be damaged in a short time, and therefore the cost will increase if the rolls are not replaced frequently.
【0012】更に樹脂ロールと鋼管杭被覆層共に塗膜硬
度を35未満、55未満のより柔らくすると、変形が大
きく損傷が頻繁に行われるし、逆に共に硬い状態にする
と、変形は少ないが共に損傷は行われ、大波波浪時の衝
撃にて、割れを生ずることになる。従って、本発明にお
いては、鋼管杭被覆層の塗膜硬度をショアー硬度D55
以上の高強度保護層を用い、かつ、鋼管杭を支持する樹
脂ロールのショアー硬度Dが35〜50の範囲のものを
使用することによって耐久性を向上させるものである。Further, if the coating hardness of both the resin roll and the steel pipe pile coating layer is less than 35 and less than 55, the deformation is large and the damage is frequent, and conversely, when both are hard, the deformation is small. Both of them will be damaged and will be cracked by the impact of the large waves. Therefore, in the present invention, the coating hardness of the steel pipe pile coating layer is the Shore hardness D55.
The durability is improved by using the above-mentioned high-strength protective layer and by using the resin roll supporting the steel pipe pile whose Shore hardness D is in the range of 35 to 50.
【0013】[0013]
【実施例】表1に実施例1〜3及び比較例1〜3の保護
層、ロール強度及び性能試験結果を示す。鋼板(500
×150×9mm)をグリットブラスト処理し、有機系
プライマーを塗布後、ポリウレタン樹脂を膜厚2.5m
mにスプレー塗装し、防食被覆層とした。防食被覆層が
完全に硬化後、被覆層としてガラスフレーク入りビニル
エステルを膜厚2.2mmに塗装したもの(実施例1)
または、グリットブラスト処理し、クロメート、有機系
プライマー及び接着剤を塗布後、ポリウレタン樹脂をT
ダイにより膜厚2.5mmに押し出し被覆し、被覆後1
〜3分のまだ未硬化時に植毛材として径2〜25μm、
長さ2〜10mmの無機系繊維を散布し、防食被覆層が
完全に硬化後、被覆層としてガラスフレーク入りビニル
エステルを膜厚2.2mmに塗装したもの(実施例2)
更には実施例1と同様の防食被覆層に接着剤を塗布後、
ポリウレタン保護層を形成したもの(実施例3)。ロー
ルはストローク長さ300mm、ロール100Φ×10
0mm厚さに樹脂被覆したもので、これを試験用評価装
置を用いて30tの荷重を付加したときのストローク回
数及び皮膜状態等の評価結果を表1に示す。この結果よ
りわかるように本発明においては比較例に比べてストロ
ーク回数も極めて多く、かつ被覆状態及びロール状態も
健全な状態を保持している。EXAMPLES Table 1 shows the protective layer, roll strength and performance test results of Examples 1 to 3 and Comparative Examples 1 to 3. Steel plate (500
X150 × 9mm) is grit blasted, coated with an organic primer, and then coated with polyurethane resin to a film thickness of 2.5m.
m was spray-painted to form an anticorrosion coating layer. After the anticorrosion coating layer is completely cured, a vinyl ester containing glass flakes is coated as the coating layer to a thickness of 2.2 mm (Example 1).
Alternatively, after grit blasting, applying chromate, an organic primer and an adhesive, the polyurethane resin is applied with T
Extrusion coating with a die to a film thickness of 2.5 mm and after coating 1
2 ~ 25μm diameter as flocking material when uncured for ~ 3 minutes,
Inorganic fibers having a length of 2 to 10 mm are sprinkled, and after the anticorrosion coating layer is completely cured, a glass flake-containing vinyl ester is coated as the coating layer to a film thickness of 2.2 mm (Example 2).
Furthermore, after applying an adhesive to the same anticorrosion coating layer as in Example 1,
A polyurethane protective layer was formed (Example 3). Roll has a stroke length of 300 mm, roll 100Φ × 10
Table 1 shows the evaluation results of the number of strokes, the film state, etc. when a resin of 0 mm thickness was applied and a load of 30 t was applied using a test evaluation device. As can be seen from these results, in the present invention, the number of strokes is much larger than that of the comparative example, and the covered state and the rolled state are maintained in a healthy state.
【0014】[0014]
【表1】 [Table 1]
【0015】[0015]
【発明の効果】以上述べたように、本発明による鋼管杭
と樹脂ローラーとの硬度の調和により、両者の関係を明
確にすることで、耐久性を向上させることが出来る極め
て優れた効果を奏するものである。As described above, by harmonizing the hardness of the steel pipe pile and the resin roller according to the present invention, by clarifying the relationship between them, the durability can be improved, which is an extremely excellent effect. It is a thing.
【図1】浮桟橋の概略図[Fig. 1] Schematic of the floating pier
【図2】本発明に係る浮桟橋用高強度鋼管杭の説明図FIG. 2 is an explanatory view of a high-strength steel pipe pile for a floating pier according to the present invention.
【図3】浮桟橋の支持構造を示す詳細断面図FIG. 3 is a detailed cross-sectional view showing a support structure for a floating jetty.
【図4】鋼管杭の重防食被覆材の一部断面図である。FIG. 4 is a partial cross-sectional view of a heavy anticorrosion coating material for a steel pipe pile.
【符号の説明】 1 鋼管杭 2 海岸 3 船 4 高強度被覆層 5 クッション材 6 保護材 7 浮桟橋 8 樹脂ローラー 9 下地処理層 10 防食被覆層 11 高強度保護層[Explanation of code] 1 Steel pipe pile 2 Coast 3 Ship 4 High-strength coating layer 5 Cushion material 6 Protective material 7 Floating pier 8 Resin roller 9 Base treatment layer 10 Anticorrosion coating layer 11 High-strength protective layer
Claims (1)
ョアーD硬度55以上の高強度保護層を順次積層した外
面被覆鋼管杭を支持杭とし、ショアーD硬度35〜50
の樹脂ロールを浮桟橋に取付け、該支持杭と接触させて
保持させたことを特徴とする浮桟橋の外面被覆鋼管杭に
よる支持構造。1. An outer surface-coated steel pipe pile in which a base treatment layer, an anticorrosive coating layer, and a high-strength protective layer having a coating hardness Shore D hardness of 55 or more are sequentially laminated as a support pile, and a Shore D hardness of 35 to 50.
A support structure using an outer surface coated steel pipe pile of a floating pier, characterized in that the resin roll is attached to the floating pier and held in contact with the supporting pile.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP24608792A JP2561204B2 (en) | 1992-09-16 | 1992-09-16 | Support structure of steel pipe piles on the outside of floating pier |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP24608792A JP2561204B2 (en) | 1992-09-16 | 1992-09-16 | Support structure of steel pipe piles on the outside of floating pier |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH06101215A true JPH06101215A (en) | 1994-04-12 |
JP2561204B2 JP2561204B2 (en) | 1996-12-04 |
Family
ID=17143301
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP24608792A Expired - Fee Related JP2561204B2 (en) | 1992-09-16 | 1992-09-16 | Support structure of steel pipe piles on the outside of floating pier |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2561204B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003096715A (en) * | 2001-09-26 | 2003-04-03 | Sumitomo Rubber Ind Ltd | Method for reinforcing in-river concrete pier |
-
1992
- 1992-09-16 JP JP24608792A patent/JP2561204B2/en not_active Expired - Fee Related
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003096715A (en) * | 2001-09-26 | 2003-04-03 | Sumitomo Rubber Ind Ltd | Method for reinforcing in-river concrete pier |
Also Published As
Publication number | Publication date |
---|---|
JP2561204B2 (en) | 1996-12-04 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN101538828B (en) | Floating type composite material pier energy dissipation and collision prevention combined device | |
US4659255A (en) | Marine structure of precoated corrosion resistant steel pipe piles | |
JP6728818B2 (en) | Multi-layer polyurethane coated steel | |
JP2561204B2 (en) | Support structure of steel pipe piles on the outside of floating pier | |
CN201432786Y (en) | Connection structure between wharfboat and guide pile | |
Yeomans | Galvanized reinforcement in bridge and coastal construction | |
JP2003096715A (en) | Method for reinforcing in-river concrete pier | |
GB2349611A (en) | Sizing of tension lines for a tension leg platform | |
CN214882907U (en) | Underwater pier protection system | |
JPH0726511A (en) | Surface coating steel pipe pile for supporting pile of floating pier | |
JP2922021B2 (en) | Floating type mooring support pile | |
JP2023043574A (en) | Anti-corrosion coating structure and marine structure comprising the anti-corrosion coating structure | |
JP2874820B2 (en) | High-strength heavy-duty coated steel pipe pile | |
CN216809870U (en) | Ocean piling bar multiple-layer cladding anticorrosion structure | |
Marsh | Reinforced plastics prevail on the waterfront | |
JPH0615220B2 (en) | Reinforced plastic composite coated steel | |
JPH06343922A (en) | Heavy duty coated steel plate | |
KR100365999B1 (en) | Reinforcing panel and Method of reinforcing the edges of the construction of harbor | |
CN217438901U (en) | Anti-floating ice corrosion-proof anti-collision offshore steel pipe pile | |
CN217395863U (en) | Coiled material with anti-corrosion function for ocean engineering | |
JPH0324355Y2 (en) | ||
JP2503126B2 (en) | Method for manufacturing reinforced plastic composite coated steel | |
JPH04247267A (en) | Production of reinforced plastic coated composite steel material | |
JPH0253516B2 (en) | ||
CN207608884U (en) | A kind of quick plain type is by/heaving pile pier structure |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 19960702 |
|
LAPS | Cancellation because of no payment of annual fees |