JPS5910606A - Fixing of column of rig and pontoon - Google Patents

Fixing of column of rig and pontoon

Info

Publication number
JPS5910606A
JPS5910606A JP11989282A JP11989282A JPS5910606A JP S5910606 A JPS5910606 A JP S5910606A JP 11989282 A JP11989282 A JP 11989282A JP 11989282 A JP11989282 A JP 11989282A JP S5910606 A JPS5910606 A JP S5910606A
Authority
JP
Japan
Prior art keywords
deck
column
pontoon
outer plate
fixed
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
Application number
JP11989282A
Other languages
Japanese (ja)
Other versions
JPS617481B2 (en
Inventor
Mitsuharu Seko
世古 光春
Shinichi Hashimoto
慎一 橋本
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsui Engineering and Shipbuilding Co Ltd
Mitsui Zosen KK
Original Assignee
Mitsui Engineering and Shipbuilding Co Ltd
Mitsui Zosen KK
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mitsui Engineering and Shipbuilding Co Ltd, Mitsui Zosen KK filed Critical Mitsui Engineering and Shipbuilding Co Ltd
Priority to JP11989282A priority Critical patent/JPS5910606A/en
Publication of JPS5910606A publication Critical patent/JPS5910606A/en
Publication of JPS617481B2 publication Critical patent/JPS617481B2/ja
Granted legal-status Critical Current

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02BHYDRAULIC ENGINEERING
    • E02B17/00Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor

Abstract

PURPOSE:To safely and exactly support a platform by fixing the outer plate of a column extended to beam parts through the deck of a floating body at the contact point between the deck and the beam parts. CONSTITUTION:The outer plate 21 of a column (pillar) 2 is extended to a beam part 6 supported by a beam pole 5 through the deck 3 of a floating body (pontoon) 1, and the outer plate 21 is fixed at the contact point 7 with the deck 3 and the contact point 8 with the beam part 6. Even when the force (arrow mark) in the thick wise direction of the plate is applied, since the force is shared by the outer plate 21, the occurrence of lamellar-tiering phenomenon in the deck 3 can thus be prevented, and also since the column 3 is strongly fixed to the pontoon 1, the platform can be supported safely and exactly. Therefore, the separation in the thickwise direction of the steel plate can be prevented.

Description

【発明の詳細な説明】 に使用するリグの、コラムとポンノ−ンの有利な固着方
法に関するものである。
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an advantageous method of fixing a column and a ponnon for a rig used in the invention.

近時、石油の枯渇に伴なって、海底油田の開発が活発に
行なわれているが、この海底油田の採掘には、海上作業
台であるリグが使用されている。
In recent years, with the depletion of oil, development of offshore oil fields has been actively carried out, and rigs, which are offshore work platforms, are used to mine these offshore oil fields.

このリグは、第1図に示すように、浮体即ちボンノーン
1と、このポンツーン1の上部に植立した複数の柱体即
ちコラム2と、このコラム2の」二部に設けたプラット
ホーム(図示省略)とから構成されている。なお、3は
ボンノーン1の甲板である。
As shown in Fig. 1, this rig consists of a floating body or bonnon 1, a plurality of pillars or columns 2 planted on top of the pontoon 1, and a platform (not shown) provided on the second part of the column 2. ). Note that 3 is the deck of Bonnon 1.

従来、コラム2と甲板6の固着部分は、第2図に示すよ
うに、コラム2の外板21と、甲板下部文月4とが、甲
板6を介して分離して設けられ、隅肉溶接によって甲板
6に固着されている。
Conventionally, as shown in FIG. 2, the fixed part of the column 2 and the deck 6 was provided by separating the outer panel 21 of the column 2 and the lower deck part 4 through the deck 6, and by fillet welding. It is fixed to deck 6 by.

しかして、コラム2に横方向の外力が加わった場合、甲
板6には、コラム2の径方向の一方の側の外板による板
厚方向の引張力と、他方の側の外板による板厚方向の圧
縮力が作用し、板厚方向に引張力が作用する部分で、甲
板6が剥離する現象即ちラメラ−ティア−61が生じる
という問題点がある。これを改良するだめ、従来、耐ラ
メラーテイア−鋼(通称、Z鋼)が用いられているが、
特別に製造された高級な鋼板であるだめ、コスト的に不
利であるという問題点がある。更に、このようなラメラ
−ティア−61が生ずることにより、コラム2の上部に
設けたプラットホームが危険にさらされるという問題点
がある。
Therefore, when a lateral external force is applied to the column 2, the deck 6 receives a tensile force in the thickness direction due to the skin on one side of the column 2 in the radial direction, and a thickness due to the skin on the other side. There is a problem in that a phenomenon in which the deck 6 peels off, that is, a lamellar tear 61 occurs at a portion where a compressive force acts in the direction and a tensile force acts in the thickness direction. In order to improve this, lamellar tear-resistant steel (commonly known as Z steel) has been used.
Since it is a specially manufactured high-grade steel plate, there is a problem in that it is disadvantageous in terms of cost. Furthermore, the formation of such a lamellar tear 61 poses a problem in that the platform provided at the top of the column 2 is exposed to danger.

本発明は、前記従来の問題点を排除したリグのコラムと
ポンツーンの有利な固着方法を提供することを目的とす
るもので、その要旨は、コラムの外板をポンツーンの甲
板を貫通して、桁桐部分捷で延長すると共に、その外板
を、甲板および権利部分との当接部で固着することを特
゛徴とするリグのコラムとポンツーンの固着方法である
An object of the present invention is to provide an advantageous method for fixing a column and a pontoon of a rig that eliminates the above-mentioned conventional problems. This is a method for fixing a pontoon to a column of a rig, which is characterized by extending the column with a girder section and fixing the outer plate at the part where it abuts with the deck and the right part.

以下、本発明の実施例を図面に基づいて説明する。Embodiments of the present invention will be described below based on the drawings.

本発明は、第3図、第4図に示すように、コラム2の外
板21を甲板6を貫通して、梁柱5で支持される桁材部
分6まで延長し、その外板21を甲板6との当接部7お
よび桁材部分6との当接部8で固着するようにしたもの
である。
As shown in FIGS. 3 and 4, the present invention extends the outer panel 21 of the column 2 through the deck 6 to the girder section 6 supported by the beam column 5. It is fixed at the abutting part 7 with the deck 6 and the abutting part 8 with the girder part 6.

しかして、本発明による、コラム2と甲板6の固着部分
は、第3図に示すように、コラム2の外板21が甲板3
を貫通し、前記第2図の甲板下部支材4に該当する部分
が外板21の延長部分となって、甲板6に固着されてい
る。したがって、板厚方向の力(矢印)が作用した場合
でも、外板21がこれを負担するため、甲板3には曲げ
方向の力たけ作用することになり、甲板乙のラメラ−テ
ィア−現象が避けられる。しかも、この外板21が桁材
部分6まで延長して、該部分6との当接部でも固着され
るので、コラム2がポンツーン1にしっかりと固定され
、プラットホームを安全かつ確実に支持することができ
る。
According to the present invention, as shown in FIG.
The portion corresponding to the deck lower support member 4 in FIG. 2 is an extension of the outer skin 21 and is fixed to the deck 6. Therefore, even if a force in the thickness direction (arrow) is applied, the outer skin 21 bears this force, and the force in the bending direction will act on the deck 3, causing the lamella tear phenomenon of the deck A. can avoid. Moreover, since this outer plate 21 extends to the girder section 6 and is fixed at the contact portion with the section 6, the column 2 is firmly fixed to the pontoon 1 and supports the platform safely and reliably. I can do it.

また、コラム2の外板21が甲板6を貫通して、桁材部
分6まで延長しているので、その軸力を梁体5により有
効にポンツーン1の下部に伝えることができる。なお、
第4図(B)において、9゜10は桁材部分6を構成す
るガーダ−等の権利であり、図面では縦、横各−列を代
表して示しであるが、この列数は適宜に選定することが
できる。
Further, since the outer plate 21 of the column 2 penetrates the deck 6 and extends to the girder portion 6, the axial force can be effectively transmitted to the lower part of the pontoon 1 by the beam body 5. In addition,
In Fig. 4(B), 9°10 is the right of the girder etc. that constitutes the girder part 6, and in the drawing, it is shown to represent each vertical and horizontal row, but the number of rows can be changed as appropriate. can be selected.

本発明によれば、コラムの外板をポンツーンの甲板を貫
通して、桁材部分まで延長すると共に、その外板を、甲
板および桁材部分との当接部で固着するようにしだので
、甲板のラメラ−ティブー(すなわち、鋼板の板厚方向
の剥離現象)の発生を防止することができる。したがっ
て、従来のように耐ラメラ−ティア−鋼を用いる必要が
ないので、経済的である。まだ、コラムの外板が、この
ように甲板を貫通した状態で、甲板および桁材部分との
当接部で固着されているので、コラムがポンツーンにし
っかりと固定され、プラットホームを安全かつ確実に支
持することができる。更に、コラムの外板が甲板を貫通
して桁材部分まで延長しているので、その軸力を梁体に
より有効にポンツーンの下部に伝えることができる等の
効果がある。
According to the present invention, the outer panel of the column passes through the deck of the pontoon and extends to the girder portion, and the outer plate is fixed at the contact portion with the deck and the girder portion. It is possible to prevent the occurrence of lamellae (that is, a peeling phenomenon of the steel plate in the thickness direction) of the deck. Therefore, there is no need to use lamellar tear-resistant steel as in the past, which is economical. Still, the outer skin of the column penetrates the deck in this way and is fixed at the contact points with the deck and girder parts, so the column is firmly fixed to the pontoon and the platform can be safely and securely secured. can be supported. Furthermore, since the outer plate of the column penetrates the deck and extends to the girder, the axial force can be effectively transmitted to the lower part of the pontoon by the beam.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図はポンツーンの全体図、第2図は従来のコラムと
甲板の固着部分を示す断面図、第3図は本発明によるコ
′ラムと甲板の固着部分を示す断面図、第4図はコラム
と甲板との貫通、固着状態を示す図である。 1・・・ポンツーン、2・・・コラム、3・・・甲板、
6・・・桁材部分、21・・・外板。 代理人 弁理士 小 川 信 − 弁理士 野 口 賢 照 弁理士 斎 下 和 彦
Fig. 1 is an overall view of the pontoon, Fig. 2 is a sectional view showing the conventional column and deck fixed part, Fig. 3 is a sectional view showing the column and deck fixed part according to the present invention, and Fig. 4 is a sectional view showing the fixed part of the column and deck according to the present invention. It is a figure which shows the penetration and fixed state of a column and a deck. 1... Pontoon, 2... Column, 3... Deck,
6... Girder material part, 21... Outer plate. Agent: Patent Attorney Makoto Ogawa − Patent Attorney: Ken Noguchi Patent Attorney: Kazuhiko Saishita

Claims (1)

【特許請求の範囲】[Claims] コラムの外板をポンツーンの甲板を貫通して、桁拐部分
まで延長すると共に、その外板を、甲板および桁材部分
との当接部で固着することを特徴とするリグのコラムと
ポンツーンの固着方法。
A rig column and pontoon characterized in that the outer plate of the column extends through the deck of the pontoon to the girder part, and the outer plate is fixed at the abutting part with the deck and the girder part. Fixation method.
JP11989282A 1982-07-12 1982-07-12 Fixing of column of rig and pontoon Granted JPS5910606A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11989282A JPS5910606A (en) 1982-07-12 1982-07-12 Fixing of column of rig and pontoon

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11989282A JPS5910606A (en) 1982-07-12 1982-07-12 Fixing of column of rig and pontoon

Publications (2)

Publication Number Publication Date
JPS5910606A true JPS5910606A (en) 1984-01-20
JPS617481B2 JPS617481B2 (en) 1986-03-06

Family

ID=14772805

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11989282A Granted JPS5910606A (en) 1982-07-12 1982-07-12 Fixing of column of rig and pontoon

Country Status (1)

Country Link
JP (1) JPS5910606A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6914535B2 (en) 2002-01-11 2005-07-05 Hochiki Corporation Light scattering type smoke sensor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6914535B2 (en) 2002-01-11 2005-07-05 Hochiki Corporation Light scattering type smoke sensor

Also Published As

Publication number Publication date
JPS617481B2 (en) 1986-03-06

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