JPH0358410B2 - - Google Patents
Info
- Publication number
- JPH0358410B2 JPH0358410B2 JP22101484A JP22101484A JPH0358410B2 JP H0358410 B2 JPH0358410 B2 JP H0358410B2 JP 22101484 A JP22101484 A JP 22101484A JP 22101484 A JP22101484 A JP 22101484A JP H0358410 B2 JPH0358410 B2 JP H0358410B2
- Authority
- JP
- Japan
- Prior art keywords
- cover
- corrosion
- flanges
- steel pipe
- split
- 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
Links
- 238000005260 corrosion Methods 0.000 claims description 22
- 229910000831 Steel Inorganic materials 0.000 claims description 19
- 239000010959 steel Substances 0.000 claims description 19
- 238000000465 moulding Methods 0.000 claims description 4
- 230000007797 corrosion Effects 0.000 description 4
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 239000000945 filler Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 229920002292 Nylon 6 Polymers 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000003365 glass fiber Substances 0.000 description 2
- 239000004570 mortar (masonry) Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/60—Piles with protecting cases
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L58/00—Protection of pipes or pipe fittings against corrosion or incrustation
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- Protection Of Pipes Against Damage, Friction, And Corrosion (AREA)
- Preventing Corrosion Or Incrustation Of Metals (AREA)
Description
【発明の詳細な説明】
〔発明の利用分野〕
本発明は、桟橋支柱等の既設鋼管を被覆防食す
るのに用いられる割型防食カバーの連結機構に関
する。DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to a connection mechanism for a split anti-corrosion cover used to coat and protect existing steel pipes such as pier supports.
港湾等に見られる桟橋支柱等の鋼管は、その干
満域及び飛沫域がマクロ電池の作用によつて集中
的に腐食することが知られている。この腐食を防
止するため、従来からＦ・Ｒ・Ｐ等の耐食性カバ
ーにて鋼管を被覆し、鋼管とカバー間にモルタル
やコンクリートの充填材を注入固化させることが
行なわれている。
It is known that steel pipes such as pier supports found in ports and harbors are subject to intensive corrosion in their tidal and splash areas due to the action of macro batteries. In order to prevent this corrosion, a conventional practice has been to cover the steel pipe with a corrosion-resistant cover such as F.R.P., and to inject and harden a filling material such as mortar or concrete between the steel pipe and the cover.
ところが既設鋼管の場合には、上方へコンクリ
ートが構築されているので円筒形カバーを鋼管へ
挿通させることができない。このため、カバーを
一対の半体に分割して各端縁に長手方向に延びる
フランジを形成し、鋼管の外側から各カバー半体
を対向させてフランジ同士を連結する構造が多用
されている。また、フランジの連結手段として
は、ボルト締めと、重ね合わせたフランジを外側
から挾持するホルダー（例えば実公昭52−52435
号）との２種類がある。 However, in the case of an existing steel pipe, the cylindrical cover cannot be inserted into the steel pipe because concrete is built upward. For this reason, a structure is often used in which the cover is divided into a pair of halves, a flange extending in the longitudinal direction is formed on each end edge, and the flanges are connected by facing each cover half from the outside of the steel pipe. In addition, as a means of connecting flanges, bolt tightening and a holder (for example, Utility Model Publication No. 52-52435
There are two types:
しかし、前者は現場において多数のボルト締め
を行なう必要があつてかなりの手間を必要とし、
後者は防食カバーが大きくなると所定のフランジ
挾持力が得られない難点がある。 However, the former method requires a large number of bolts to be tightened on site, which requires considerable effort.
The latter has the disadvantage that a predetermined flange clamping force cannot be obtained when the anti-corrosion cover becomes large.
本発明はかかる事情に鑑みてなされたものであ
り、その目的は、作業員が現場で簡単にフランジ
を連結し得るような割型防食カバーの連結機構を
提供することにある。
The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a connecting mechanism for split anti-corrosion covers that allows a worker to easily connect flanges on site.
上記目的を達成するため、本発明では、カバー
半体の対向する両フランジを重ね合わせるだけで
弾性的に係合する形状とすることにより、従来の
ボルト、ナツトやホルダーを省略できるように構
成している。
In order to achieve the above object, the present invention is configured so that conventional bolts, nuts, and holders can be omitted by forming the opposing flanges of the cover halves into a shape that allows them to be elastically engaged simply by overlapping them. ing.
第１図には、本発明の連結機構が採用された防
食カバー１０が示されている。
FIG. 1 shows an anti-corrosion cover 10 that employs the coupling mechanism of the present invention.
この防食カバー１０は、Ｆ・Ｒ・Ｐ等の耐食材
料にて形成され、第２図から判るようにカバー半
体１０ａ，１０ｂを対向させた状態で鋼管１２へ
取付けられる。各カバー半体１０ａ，１０ｂの縦
方向寸法は、鋼管１２の干満域及び飛沫域を完全
に被覆し得る程度とする。 The anti-corrosion cover 10 is made of a corrosion-resistant material such as F.R.P, etc., and is attached to the steel pipe 12 with the cover halves 10a and 10b facing each other as shown in FIG. The vertical dimension of each cover half body 10a, 10b is such that it can completely cover the ebb and flow area and the splash area of the steel pipe 12.
この実施例では、鋼管１２の上方外面へ溶接さ
れた吊り金具１４によつて防食カバー１０が支持
されているが、受台（図示せず）を鋼管１４へ設
けて防食カバー１０の下方を支持する構造として
もよい。 In this embodiment, the anti-corrosion cover 10 is supported by a hanging fitting 14 welded to the upper outer surface of the steel pipe 12, but a pedestal (not shown) is provided on the steel pipe 14 to support the lower part of the anti-corrosion cover 10. It is also possible to have a structure in which
鋼管１２の上方にはコンクリート１６が構築さ
れ、全体として桟橋をなしている。 Concrete 16 is constructed above the steel pipe 12, forming a pier as a whole.
各カバー半体１０ａ，１０ｂの両端には、第２
図に示すようにフランジ１８ａ，１８ｂが設けら
れ、各フランジ１８ａ，１８ｂは一旦外側へ屈曲
した後、再び接近する方向へ屈曲している。 At both ends of each cover half 10a, 10b, a second
As shown in the figure, flanges 18a, 18b are provided, and each flange 18a, 18b is once bent outward and then bent in the direction toward which it approaches again.
フランジ１８の内面には雄形部材２０が固着さ
れ、一方フランジ１８ｂの内面には雌形部材２２
が固着されている。また、雄形部材２０の外側に
は歯２４が複数設けられ、雌形部材２２の孔２８
内には、歯２４と咬合する内歯２６が刻設されて
いる。これらの歯２４及び内歯２６は傾斜させて
設けられ、両者が一旦咬合した後は抜けない形状
となつている。 A male member 20 is fixed to the inner surface of the flange 18, while a female member 22 is fixed to the inner surface of the flange 18b.
is fixed. Further, a plurality of teeth 24 are provided on the outside of the male member 20, and the holes 28 of the female member 22 are provided with a plurality of teeth 24.
Internal teeth 26 are carved inside to engage with the teeth 24. These teeth 24 and internal teeth 26 are provided at an angle, and have a shape that prevents them from coming out once they are in occlusion.
雄形部材２０及び雌形部材２２は、所定の強度
及び可撓性を有する材料、例えばガラス繊維強化
ナイロン６にて製作するのが望ましい。 Preferably, the male member 20 and the female member 22 are made of a material having a certain strength and flexibility, such as glass fiber reinforced nylon 6.
雄形部材２０の中央には溝３０が形成され、雄
形部材２０が雌形部材２２へ係合する際に若干変
形して挿入力が軽減されるようになつている。一
方、雌形部材２２の外側（第２図右側）にはモー
ル３２が一体に形成され、これは両フランジ１８
ａ，１８ｂが結合した際に生ずる継目を覆う役割
を果たす。更に、フランジ１８ａと雄形部材２０
との隙間、フランジ１８ｂと雌形部材２２との隙
間には、接着剤またはポリパテ等の詰物３４を充
填するのが望ましい。 A groove 30 is formed in the center of the male member 20, so that when the male member 20 engages with the female member 22, it deforms slightly to reduce the insertion force. On the other hand, a molding 32 is integrally formed on the outside of the female member 22 (on the right side in FIG. 2), and this molding 32 is formed on both flanges 18
It serves to cover the seam that occurs when a and 18b are joined. Furthermore, the flange 18a and the male member 20
It is desirable to fill the gap between the flange 18b and the female member 22 with a filler 34 such as adhesive or poly putty.
この実施例では、雄形部材２０及び雌形部材２
２がフランジ１８ａ，１８ｂの縦方向全長に亘つ
て設けられているが、防食カバーが小型でフラン
ジ１８ａ，１８ｂの結合に大きな力を要しない場
合は、複数の雄形部材及び雌形部材をフランジの
上下２〜３箇所に取付けてもよい。 In this embodiment, a male member 20 and a female member 2
2 is provided over the entire length of the flanges 18a, 18b in the longitudinal direction. However, if the anti-corrosion cover is small and does not require a large force to connect the flanges 18a, 18b, a plurality of male members and female members may be attached to the flange. It may be attached at 2 to 3 locations above and below.
本実施例の防食カバー１０は、次の順序で施工
される。まず、カバー半体１０ａ，１０ｂを対向
させた状態で鋼管１２を被覆し、互いのフランジ
１８ａ，１８ｂを押圧することにより両者を結合
させる。次に、防食カバー１０が鋼管１２の干満
域及び飛沫域を完全に覆うように上下位置を調整
した後、カバーの上方内面に設けられた吊り金具
１４を鋼管１２へ溶接する。次いで、防食カバー
１０と鋼管１２間に充填材３６（第２図）を注入
して固化させる。尚、図示してないが、防食カバ
ー１０の底部と鋼管１２との間には所定のシール
が設けられているから、充填材３６が洩れるおそ
れはない。 The anti-corrosion cover 10 of this embodiment is constructed in the following order. First, the steel pipe 12 is covered with the cover halves 10a and 10b opposed to each other, and the flanges 18a and 18b are pressed to join them together. Next, the vertical position of the anti-corrosion cover 10 is adjusted so as to completely cover the ebb and flow area and the splash area of the steel pipe 12, and then the hanging fitting 14 provided on the upper inner surface of the cover is welded to the steel pipe 12. Next, a filler 36 (FIG. 2) is injected between the anticorrosive cover 10 and the steel pipe 12 and solidified. Although not shown, a predetermined seal is provided between the bottom of the anti-corrosion cover 10 and the steel pipe 12, so there is no risk of the filler 36 leaking.
充填材３６にモルタルコンクリートを使用する
と固化後に膨張して両フランジ１８ａ，１８ｂを
離反させようとするが、雄形部材２０の歯２４と
雌形部材２２の内歯２６とが両者の抜止めを行な
う。また、雄形部材２０及び雌形部材２２にガラ
ス繊維強化ナイロン６を用いるとこれは水分を吸
収して若干膨張し、歯２４と内歯２６との咬合力
を強化させる。必要以上に両部材２０，２２が膨
張した場合でも、雄形部材２０の溝３０が過膨張
分を吸収するから破損のおそれはない。 If mortar concrete is used as the filler 36, it will expand after solidifying and try to separate the flanges 18a, 18b, but the teeth 24 of the male member 20 and the inner teeth 26 of the female member 22 prevent them from coming out. Let's do it. Further, when glass fiber reinforced nylon 6 is used for the male member 20 and the female member 22, it absorbs moisture and expands slightly, thereby strengthening the occlusal force between the teeth 24 and the internal teeth 26. Even if both members 20 and 22 expand more than necessary, there is no risk of damage because the grooves 30 of the male member 20 absorb the excess expansion.
更に、雌形部材２２の外側へ一体的にモール３
２を形成したことによつて両フランジ１８ａ，１
８ｂの継目が覆われると共に、両フランジ１８
ａ，１８ｂの形状及び寸法を同一にできる利点も
ある。 Furthermore, a molding 3 is integrally attached to the outside of the female member 22.
By forming 2, both flanges 18a, 1
8b is covered, and both flanges 18
There is also an advantage that the shapes and dimensions of a and 18b can be made the same.
叙上の如く、本発明の連結機構によれば、ボル
ト締めやホルダーを要せずして、割型防食カバー
の両フランジを確実に結合できる効果がある。
As described above, the coupling mechanism of the present invention has the effect of reliably coupling both flanges of the split anti-corrosion cover without requiring bolt tightening or a holder.
第１図は、本発明の連結機構が採用された割型
防食カバーの取付け状態を示す側面図、第２図は
第１図−線に沿う拡大断面図である。
１０……防食カバー、１０ａ，１０ｂ……カバ
ー半体、１２……鋼管、１８ａ，１８ｂ……フラ
ンジ、２０……雄形部材、２２……雌形部材、２
４……歯、２６……内歯、３０……溝。
FIG. 1 is a side view showing the installed state of a split anti-corrosion cover employing the coupling mechanism of the present invention, and FIG. 2 is an enlarged sectional view taken along the line shown in FIG. 1. 10... Anti-corrosion cover, 10a, 10b... Half cover, 12... Steel pipe, 18a, 18b... Flange, 20... Male member, 22... Female member, 2
4...teeth, 26...internal teeth, 30...groove.
Claims (1)
するのに用いられ一対のカバー半体から構成され
る割型防食カバーの連結機構において、前記各カ
バー半体の対向する両フランジを弾性係合させた
ことを特徴とする割型防食カバーの連結機構。 ２ 前記フランジの一方が雄形部材、他方が雌形
部材を有すると共に、これら雄形部材及び雌形部
材には両フランジ結合後の抜落ちを防止する咬合
歯が設けられている特許請求の範囲第１項に記載
の割型防食カバーの連結機構。 ３ 前記雄形部材には、上下方向に延びる溝が形
成されている特許請求の範囲第２項に記載の割型
防食カバーの連結機構。 ４ 前記雌形部材には、両フランジの衝合部を覆
うモールが一体に形成されている特許請求の範囲
第２項または第３項に記載の割型防食カバーの連
結機構。[Scope of Claims] 1. In a connecting mechanism for a split anti-corrosion cover that is used to cover the tidal and splash areas of an existing steel pipe from the outside and is composed of a pair of cover halves, the opposing A connecting mechanism for a split anti-corrosion cover characterized by elastically engaging both flanges. 2. Claims in which one of the flanges has a male member and the other has a female member, and these male and female members are provided with occlusal teeth to prevent them from falling out after both flanges are joined. A connection mechanism for the split anti-corrosion cover according to item 1. 3. The split anti-corrosion cover connection mechanism according to claim 2, wherein the male member is formed with a groove extending in the vertical direction. 4. The split corrosion-proof cover connection mechanism according to claim 2 or 3, wherein the female member is integrally formed with a molding that covers the abutting portions of both flanges.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22101484A JPS6198831A (en) | 1984-10-20 | 1984-10-20 | Coupling mechanism for split type corrosionproof cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22101484A JPS6198831A (en) | 1984-10-20 | 1984-10-20 | Coupling mechanism for split type corrosionproof cover |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6198831A JPS6198831A (en) | 1986-05-17 |
| JPH0358410B2 true JPH0358410B2 (en) | 1991-09-05 |
Family
ID=16760122
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22101484A Granted JPS6198831A (en) | 1984-10-20 | 1984-10-20 | Coupling mechanism for split type corrosionproof cover |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6198831A (en) |
-
1984
- 1984-10-20 JP JP22101484A patent/JPS6198831A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6198831A (en) | 1986-05-17 |
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