JP6535931B2 - Ship - Google Patents

Ship Download PDF

Info

Publication number
JP6535931B2
JP6535931B2 JP2017133837A JP2017133837A JP6535931B2 JP 6535931 B2 JP6535931 B2 JP 6535931B2 JP 2017133837 A JP2017133837 A JP 2017133837A JP 2017133837 A JP2017133837 A JP 2017133837A JP 6535931 B2 JP6535931 B2 JP 6535931B2
Authority
JP
Japan
Prior art keywords
ship
upper deck
arc
hull
independent
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.)
Active
Application number
JP2017133837A
Other languages
Japanese (ja)
Other versions
JP2019014400A (en
Inventor
龍祐 高田
龍祐 高田
康充 久間
康充 久間
宏章 敷根
宏章 敷根
坪内　大泉
大泉 坪内
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.)
Mitsubishi Shipbuilding Co Ltd
Original Assignee
Mitsubishi Shipbuilding Co Ltd
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 Mitsubishi Shipbuilding Co Ltd filed Critical Mitsubishi Shipbuilding Co Ltd
Priority to JP2017133837A priority Critical patent/JP6535931B2/en
Priority to KR1020180015065A priority patent/KR102051734B1/en
Publication of JP2019014400A publication Critical patent/JP2019014400A/en
Application granted granted Critical
Publication of JP6535931B2 publication Critical patent/JP6535931B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B25/00—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby
    • B63B25/02—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods
    • B63B25/08—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid
    • B63B25/12—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid closed
    • B63B25/16—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid closed heat-insulated
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B3/00—Hulls characterised by their structure or component parts
    • B63B3/14—Hull parts
    • B63B3/48—Decks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B25/00—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby
    • B63B25/02—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods
    • B63B25/08—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid
    • B63B2025/087—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid comprising self-contained tanks installed in the ship structure as separate units

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)

Description

本発明は、船舶に関する。   The present invention relates to a ship.

例えば、液化天然ガス等を輸送する船舶等には、船体内に設けられた独立タンクのうち、上甲板から上方に向けて突出する上部を覆う独立カバーが設けられている。そして、下記特許文献１には、上甲板の下面における独立カバーの下端に対応する位置に、上甲板を支持する縦通隔壁と船幅方向に接続されるとともに、独立カバーの荷重を支持する複数のブラケット部材が設けられた構成が開示されている。この構成では、ブラケット部材は独立カバーの下端に沿って断続的に複数設けられている。   For example, a ship or the like that transports liquefied natural gas or the like is provided with an independent cover that covers an upper portion protruding upward from the upper deck, of the independent tanks provided in the hull. Then, in Patent Document 1 below, a plurality of longitudinal bulkheads that support the upper deck and a plurality of loads that support the loads of the independent covers are supported at positions corresponding to the lower ends of the independent covers on the lower surface of the upper deck. And a bracket member is provided. In this configuration, a plurality of bracket members are intermittently provided along the lower end of the independent cover.

特開２０１０−２３５７３号公報Unexamined-Japanese-Patent No. 2010-23573

しかしながら、特許文献１に記載の技術では、ブラケット部材が、上甲板の下面における独立カバーの下端に対応する位置に、独立カバーの下端に沿って断続的に設けられているので、独立カバーを支持する上甲板の強度に改善の余地があった。   However, in the technique described in Patent Document 1, since the bracket member is intermittently provided along the lower end of the independent cover at a position corresponding to the lower end of the independent cover on the lower surface of the upper deck, the independent cover is supported. There is room for improvement in the strength of the upper deck.

本発明は、上記課題を解決するためになされたものであって、上甲板の強度を確保することができる船舶を提供することを目的とする。   The present invention was made in order to solve the above-mentioned subject, and an object of the present invention is to provide the ship which can secure the intensity of an upper deck.

上記課題を解決するために、本発明は以下の手段を採用している。
すなわち、本発明の一態様に係る船舶は、船体と、該船体に設けられた上甲板と、前記船体の上甲板に形成された上面視円形状を呈する開口部から上部が突出するように前記船体に設けられた独立タンクと、前記独立タンクの上部を覆うとともに、下端が前記開口部に沿って前記上甲板上に設けられた独立カバーと、前記船体内に設けられ、前記上甲板における前記開口部の船幅方向の外側で、船首尾方向に延びて前記上甲板を下方から支持する縦通隔壁と、前記上甲板の下面における前記独立カバーの下端に対応する位置から下方に向けて突出するとともに、上面視における前記独立タンクの中心を通り、かつ船幅方向に延びるホールド中央線を、船首尾方向に挟む位置に跨って前記開口部の周方向に延び、円弧状をなす円弧状ガーダーと、前記円弧状ガーダーにおける前記縦通隔壁に最も近接する部分を含む周方向の所定領域を除く部分に設けられて、前記縦通隔壁と前記円弧状ガーダーとを船幅方向に接続する複数の支持ブラケットと、を備えている。 In order to solve the above-mentioned subject, the present invention adopts the following means.
That is, the ship according to one aspect of the present invention includes the hull, the upper deck provided on the hull, and the upper portion projecting from the opening having a circular top view formed on the upper deck of the hull. An independent tank provided on the hull, an upper part of the independent tank, an independent cover provided on the upper deck along the opening, and a lower end provided on the upper body, and the upper deck provided on the upper deck A longitudinal bulkhead extending in the ship's forward direction and supporting the upper deck from the lower side outside the opening in the width direction of the vessel and projecting downward from a position corresponding to the lower end of the independent cover on the lower surface of the upper deck. And a holding center line extending in the ship's width direction, passing through the center of the independent tank in top view and extending in the circumferential direction of the opening across the position sandwiching it in the ship's forward direction. When A plurality of support brackets provided in a portion excluding a predetermined region in the circumferential direction including a portion closest to the longitudinal bulkhead in the circular arc girder, and connecting the longitudinal bulkhead and the arcuate girder in the ship width direction And have.

この構成によれば、円弧状ガーダーが、上甲板の下面における独立カバーの下端に対応する位置から下方に向けて突出するとともに、ホールド中央線を船首尾方向に挟む位置に跨って周方向に沿って円弧状に延びている。このため、独立カバーを支持する上甲板が上下方向に撓み変形するのを、円弧状ガーダーにより抑えることができる。これにより、上甲板および独立カバーの強度を確保することができる。   According to this configuration, the arc-shaped girder protrudes downward from a position corresponding to the lower end of the independent cover on the lower surface of the upper deck, and extends circumferentially across the hold center line in the direction of the boat It extends in an arc shape. Therefore, it is possible to suppress the bending deformation of the upper deck supporting the independent cover in the vertical direction by the arc-shaped girders. Thereby, the strength of the upper deck and the independent cover can be secured.

また、上記の船舶は、前記円弧状ガーダーのうち、前記所定領域に位置する部分は、前記支持ブラケットが設けられた部分よりも、下方に向けた突出量が小さくてもよい。   In the above-mentioned vessel, the amount of protrusion of the portion positioned in the predetermined area of the circular arc girder may be smaller toward the lower side than the portion provided with the support bracket.

この構成によれば、円弧状ガーダーのうち、支持ブラケットが設けられず、独立カバーの荷重を直接支持することのない所定領域に位置する部分の下方に向けた突出量を小さくすることで、円弧状ガーダー全体の体積を小さくすることが可能になる。これにより、円弧状ガーダーにより上甲板の強度を確保しながら、船舶全体の重量が大きくなるのを抑えることができる。   According to this configuration, of the arc-shaped girders, the support bracket is not provided, and the amount of downward protrusion of the portion positioned in the predetermined area that does not directly support the load of the independent cover is reduced. It is possible to reduce the volume of the entire arc-shaped girder. Thereby, it is possible to suppress an increase in the weight of the entire ship while securing the strength of the upper deck by the arc-shaped girder.

また、上記の船舶は、前記縦通隔壁に直交して接続され、かつ前記縦通隔壁に沿って上下方向に延びるとともに、船首尾方向に互いに間隔をあけて設けられた複数の支持フレームを備え、前記所定領域の船首尾方向の大きさは、互いに隣り合う前記支持フレーム同士の間の間隔の半分以上であってもよい。   Further, the above-described vessel is provided with a plurality of support frames which are orthogonally connected to the longitudinal bulkhead and extend in the vertical direction along the longitudinal bulkhead, and are spaced apart from each other in the ship's direction. The size of the predetermined direction may be half or more of a distance between the support frames adjacent to each other.

この構成によれば、所定領域の船首尾方向の大きさが、互いに隣り合う支持フレーム同士の間の間隔の半分以上となっているので、円弧状ガーダーのうち、縦通隔壁に最も近接する部分の周辺に支持ブラケットを設ける必要が無い。このため、縦通隔壁との船幅方向の距離が小さい部分に、例えば溶接作業等により支持ブラケットを接続する作業を行う必要が無く、支持ブラケットを円弧状ガーダーおよび縦通隔壁に接続する際の作業性を確保することができる。   According to this configuration, since the size of the predetermined direction in the direction of the ship is at least half the distance between the adjacent support frames, a portion of the arc-shaped gard that is closest to the longitudinal bulkhead There is no need to provide support brackets around the For this reason, there is no need to perform work of connecting the support bracket by, for example, a welding operation or the like at a portion where the distance in the ship width direction to the longitudinal bulkhead is small, and connecting the support bracket to the arc girder and longitudinal bulkhead Workability can be secured.

本発明の船舶によれば、上甲板の強度を確保することができる。   According to the ship of the present invention, the strength of the upper deck can be secured.

本発明の一実施形態に係る船舶の上面図である。It is a top view of the ship concerning one embodiment of the present invention. 図１に示す船舶の（ａ）Ａ部の拡大図、（ｂ）（ａ）におけるＢ矢視図である。It is an enlarged view of (a) A part of the ship shown in FIG. 1, (b) It is a B arrow line view in (a). 図２（ａ）に示す船舶のＣ−Ｃ端面図である。It is a CC end view of the ship shown in Drawing 2 (a). 図２（ａ）に示す船舶のＤ−Ｄ端面図である。It is a DD end view of the ship shown to Fig.2 (a).

以下、本発明の実施の形態について、図１から図４を参照して説明する。
図１に示すように、本発明の一実施形態に係る船舶１は、船体１０と、船体１０に設けられた上甲板１１と、船体１０の上甲板１１に形成された上面視円形状を呈する開口部１１Ａから上部が突出するように船体１０に設けられた独立タンク１２と、独立タンク１２の上部を覆うとともに、下端が開口部１１Ａに沿って上甲板１１上に設けられた独立カバー１３と、を備えている。 Hereinafter, embodiments of the present invention will be described with reference to FIGS. 1 to 4.
As shown in FIG. 1, the ship 1 according to an embodiment of the present invention has a hull 10, an upper deck 11 provided on the hull 10, and a circular top view formed on the upper deck 11 of the hull 10. The independent tank 12 provided on the hull 10 so that the upper part protrudes from the opening 11A, and the independent cover 13 covering the upper part of the independent tank 12 and having the lower end provided on the upper deck 11 along the opening 11A And.

以下の説明において、船体１０における船首１０Ａと船尾１０Ｂとを結ぶ方向を船首尾方向Ｘ、上面視で船首尾方向Ｘと直交する方向を船幅方向Ｙ、船首尾方向Ｘおよび船幅方向Ｙの双方と直交する方向を上下方向Ｚという。また、船首尾方向Ｘおよび船幅方向Ｙにおいて、船体１０の外側を向く方向を外側といい、船体１０の内側を向く方向を内側という。また、上面視で開口部１１Ａの各中心軸Ｏ１回りに周回する方向を周方向という。   In the following description, the direction connecting the bow 10A and the stern 10B in the hull 10 is the ship's direction X, the direction orthogonal to the ship's direction X in the top view is the ship's width Y, the ship's direction X The direction orthogonal to both is referred to as the vertical direction Z. Further, in the direction of ship X and in the direction of ship width Y, the direction facing the outside of the hull 10 is called the outside, and the direction facing the inside of the hull 10 is called the inside. Further, the direction of circling around each central axis O1 of the opening 11A in a top view is referred to as a circumferential direction.

上甲板１１の開口部１１Ａは、船体１０における船幅方向Ｙの中央部に位置している。
独立タンク１２は球体状を呈し、船体１０に複数設けられている。図示の例では、船首尾方向Ｘに沿って３つの独立タンク１２が船体１０に配置されている。なお、独立タンク１２は２つ以下であってもよいし、４つ以上であってもよい。
独立カバー１３は上面視で円形状を呈している。複数の独立カバー１３は、複数の独立タンク１２の上部を各別に覆っている。上面視で、独立タンク１２および独立カバー１３は、中心軸Ｏ１と同軸に配置されている。 The opening 11A of the upper deck 11 is located at the center of the hull 10 in the width direction Y.
The independent tank 12 has a spherical shape, and a plurality of independent tanks 12 are provided on the hull 10. In the illustrated example, three independent tanks 12 are disposed on the hull 10 along the ship's forward direction X. The number of independent tanks 12 may be two or less, or four or more.
The independent cover 13 has a circular shape in top view. The plurality of independent covers 13 cover the tops of the plurality of independent tanks 12 separately. In top view, the independent tank 12 and the independent cover 13 are arranged coaxially with the central axis O1.

船体１０内には、船首尾方向Ｘに延びる縦通隔壁１４が設けられている。縦通隔壁１４は、上甲板１１における開口部１１Ａの船幅方向Ｙの外側で、上甲板１１を支持している。縦通隔壁１４は、上甲板１１の下面と、例えば船体１０の底部の上面と、を接続している。なお、縦通隔壁１４は船体１０内に設けられた中甲板等と接続されてもよい。
図２に示すように、縦通隔壁１４は、船体１０内のうち、上甲板１１における開口部１１Ａの船幅方向Ｙの両外側に設けられている。縦通隔壁１４の船幅方向Ｙの外側には、互いに船幅方向に間隔をあけて配置され、船首尾方向Ｘに延びる複数の縦通骨材１８が設けられている。縦通隔壁１４は、開口部１１Ａの船幅方向Ｙの両外側に各別に設けられている。 In the hull 10, there is provided a longitudinal bulkhead 14 extending in the ship's forward direction X. The longitudinal bulkhead 14 supports the upper deck 11 at the outer side of the opening 11 </ b> A of the upper deck 11 in the ship width direction Y. The longitudinal bulkhead 14 connects the lower surface of the upper deck 11 and the upper surface of the bottom of the hull 10, for example. The longitudinal bulkhead 14 may be connected to a mid deck or the like provided in the hull 10.
As shown in FIG. 2, the longitudinal bulkheads 14 are provided inside the hull 10 on both sides of the opening 11 </ b> A in the upper deck 11 in the width direction Y of the hull. On the outer side of the longitudinal direction bulkhead 14 in the widthwise direction Y, a plurality of longitudinal grids 18 which are spaced apart from each other in the widthwise direction and extend in the longitudinal direction X are provided. The longitudinal bulkheads 14 are separately provided on both outer sides in the width direction Y of the opening 11A.

縦通隔壁１４には、縦通隔壁１４に沿って上下方向Ｚに延びる支持フレーム１５が接続されている。支持フレーム１５は、縦通隔壁１４に直交して接続されるとともに、船首尾方向Ｘに互いに間隔をあけて複数設けられている。
支持フレーム１５は複数の縦通隔壁１４それぞれに接続されるとともに、船体１０における船側外板１０Ｃに接続されている。複数の支持フレーム１５は、船首尾方向Ｘに間隔をあけて配置されている。なお、複数の支持フレーム１５同士の間は、互いに等間隔をなしてもよい。 A support frame 15 extending in the vertical direction Z along the longitudinal partition 14 is connected to the longitudinal partition 14. The support frames 15 are connected to the longitudinal bulkheads 14 at right angles, and a plurality of support frames 15 are provided spaced apart from each other in the ship passing direction X.
The support frame 15 is connected to each of the plurality of longitudinal bulkheads 14 and is connected to the ship-side outer plate 10C of the hull 10. The plurality of support frames 15 are spaced apart in the ship's forward direction X. The plurality of support frames 15 may be equally spaced from one another.

図２および図３に示すように、上甲板１１の下面における独立カバー１３の下端に対応する部分には、下方に向けて突出する円弧状ガーダー１６が設けられている。円弧状ガーダー１６は、周方向に延び、円弧状をなしている。円弧状ガーダー１６は、上面視で独立カバー１３の下端の一部と重複する位置に設けられている。
円弧状ガーダー１６は周方向に間隔をあけて複数設けられている。本実施形態では、円弧状ガーダー１６は２つ設けられ、上面視で中心軸Ｏ１を船幅方向Ｙに挟む位置に各別に配置されている。
円弧状ガーダー１６は、上面視における独立タンク１２の中心を通り、かつ船幅方向Ｙに延びるホールド中央線Ｌ１を船首尾方向Ｘに挟む位置に跨っている。円弧状ガーダー１６の船首尾方向Ｘの中央部が、上面視でホールド中央線Ｌ１と重なっている。 As shown in FIGS. 2 and 3, an arc-shaped girder 16 projecting downward is provided at a portion of the lower surface of the upper deck 11 corresponding to the lower end of the independent cover 13. The arc-shaped girder 16 extends in the circumferential direction and has an arc shape. The arc-shaped girder 16 is provided at a position overlapping a part of the lower end of the independent cover 13 in top view.
A plurality of arc-shaped girders 16 are provided at intervals in the circumferential direction. In the present embodiment, two arc-shaped girders 16 are provided, and are separately disposed at positions sandwiching the central axis O1 in the boat width direction Y in top view.
The arc-shaped girder 16 passes the center of the independent tank 12 in a top view, and straddles a hold center line L1 extending in the ship width direction Y in the ship passing direction X. The central portion of the arc-shaped girder 16 in the direction of ship X overlaps with the hold center line L1 in top view.

図２（ｂ）に示すように、円弧状ガーダー１６の下方に向けた突出量は、船首尾方向Ｘの位置により異なっている。円弧状ガーダー１６は、船幅方向Ｙから見た側面視で、開口部１１Ａの中心軸Ｏ１を船首尾方向Ｘに挟んで対称な形状をなしている。円弧状ガーダー１６の下方に向けた突出量は、前記側面視で、開口部１１Ａの中心軸Ｏ１と重なる船首尾方向Ｘの中央部分１６Ａで最も小さく、中心軸Ｏ１から船首尾方向Ｘの外側に向かうに従い、段階的に大きくなっている。   As shown in FIG. 2 (b), the amount of downward protrusion of the arc-shaped girder 16 differs depending on the position in the ship's forward direction X. The arc-shaped girder 16 has a symmetrical shape sandwiching the central axis O1 of the opening 11A in the ship passing direction X in a side view as viewed in the ship width direction Y. The amount of downward protrusion of the arc-shaped girder 16 is the smallest at the central portion 16A in the boat passing direction X overlapping the central axis O1 of the opening 11A in the side view, and is outside the boat passing direction X from the central axis O1. As you head, it is getting bigger gradually.

円弧状ガーダー１６のうち、船首尾方向Ｘの中央部分１６Ａに対して船首尾方向Ｘの両外側に位置する中間部分１６Ｂの下方に向けた突出量、および船首尾方向Ｘの中間部分１６Ｂに対して船首尾方向Ｘの両外側に位置する周端部分１６Ｃの下方に向けた突出量はそれぞれ、中央部分１６Ａの下方に向けた突出量よりも大きくなっている。周端部分１６Ｃの下方に向けた突出量は、中間部分１６Ｂの下方に向けた突出量よりも大きくなっている。
本実施形態では、中央部分１６Ａの船首尾方向Ｘの大きさＨ１は、中間部分１６Ｂの船首尾方向Ｘの大きさＨ２よりも大きくなっている。中間部分１６Ｂおよび周端部分１６Ｃそれぞれの船首尾方向Ｘの大きさＨ２、Ｈ３は、互いに同等となっている。 Of the arc-shaped girder 16, the amount of downward protrusion of the middle portion 16B located on the both sides of the ship direction X with respect to the center portion 16A in the ship direction X and the middle portion 16B of the ship direction X The amount of downward protrusion of the circumferential end portions 16C located on both outer sides in the boat passing direction X is larger than the amount of downward protrusion of the central portion 16A. The downward protrusion amount of the circumferential end portion 16C is larger than the downward protrusion amount of the middle portion 16B.
In the present embodiment, the size H1 in the ship-going direction X of the central portion 16A is larger than the size H2 in the ship-going direction X of the middle portion 16B. The magnitudes H2 and H3 of the ship-going direction X of the middle portion 16B and the circumferential end portion 16C are equal to each other.

円弧状ガーダー１６の中央部分１６Ａにおいて、中間部分１６Ｂとの接続部分の下端部は、前記側面視で上方に向けて窪む曲線状に形成されている。中間部分１６Ｂにおいて、周端部分１６Ｃとの接続部分の下端部は、前記側面視で上方に向けて窪む曲線状に形成されている。
なお、このような態様に限られず、円弧状ガーダー１６の形状は任意に変更可能である。 In the central portion 16A of the arc-shaped girder 16, the lower end portion of the connecting portion with the intermediate portion 16B is formed in a curved shape that is recessed upward in the side view. In the middle portion 16B, the lower end portion of the connection portion with the peripheral end portion 16C is formed in a curved shape that is recessed upward in the side view.
In addition, it is not restricted to such an aspect, the shape of the circular arc girder 16 can be arbitrarily changed.

図２および図４に示すように、船舶１は、縦通隔壁１４と円弧状ガーダー１６とを船幅方向Ｙに接続する複数の支持ブラケット１７を備えている。支持ブラケット１７は、１つの円弧状ガーダー１６に対して船首尾方向Ｘに間隔をあけて複数設けられている。
支持ブラケット１７は、円弧状ガーダー１６における縦通隔壁１４に最も近接する部分（以下、近接部Ｐ１という）を含む周方向の所定領域Ｋを除く部分に設けられている。近接部Ｐ１は、前記側面視でホールド中央線Ｌ１と重なる部分に位置している。図示の例では、所定領域Ｋが、前述した中央部分１６Ａと一致している。 As shown to FIG. 2 and FIG. 4, the ship 1 is provided with the several support bracket 17 which connects the longitudinal partition 14 and the circular arc girder 16 in the ship width direction Y. As shown in FIG. A plurality of support brackets 17 are provided at intervals in the ship passing direction X with respect to one arc-shaped girder 16.
The support bracket 17 is provided in a portion excluding a predetermined region K in the circumferential direction including a portion closest to the longitudinal partition 14 (hereinafter referred to as the proximity portion P1) in the arc-shaped girder 16. The proximity portion P1 is located at a portion overlapping the hold center line L1 in the side view. In the illustrated example, the predetermined area K coincides with the central portion 16A described above.

支持ブラケット１７は、船幅方向Ｙの片側に位置する複数の縦通隔壁１４のうち、船幅方向Ｙの内側に位置する縦通隔壁１４に接続されている。
円弧状ガーダー１６における所定領域Ｋは、近接部Ｐ１を中心として船首尾方向Ｘに延びている。なお、このような態様に限られず、所定領域Ｋは、中心軸Ｏ１を中心とせずに船首尾方向Ｘに延びてもよい。 The support bracket 17 is connected to the longitudinal bulkhead 14 located inside the transverse direction Y among the longitudinal bulkheads 14 located on one side in the lateral direction Y of the ship.
The predetermined area K of the arc-shaped girder 16 extends in the ship's direction X about the proximity portion P1. In addition, it is not restricted to such an aspect, the predetermined | prescribed area | region K may be extended in the ship passing direction X, without centering on the central axis O1.

図４に示すように、支持ブラケット１７は、表裏面が船首尾方向Ｘを向くとともに、船首尾方向Ｘから見た正面視で台形状をなす板状部材である。
支持ブラケット１７の側縁部のうち、台形状の上底をなし、船幅方向Ｙの内側を向く内側縁部は、円弧状ガーダー１６に溶接等により接続されている。支持ブラケット１７の側縁部のうち、台形状の下底をなし、船幅方向Ｙの外側を向く外側縁部は、縦通隔壁１４に溶接等により接続されている。
支持ブラケット１７の側縁部のうち、台形状の脚をなし、上方を向く上側縁部は、上甲板１１の下面に溶接等により接続されている。なお、台形状の脚をなし、下方を向く下側縁部は、前記正面視で下方に向けて突出する曲線状に形成されてもよい。 As shown in FIG. 4, the support bracket 17 is a plate-like member that has a trapezoidal shape in a front view as viewed from the ship-up direction X, while the front and back faces face the ship-up direction X.
Of the side edges of the support bracket 17, an inner edge that forms a trapezoidal upper bottom and faces inward in the boat width direction Y is connected to the arc-shaped girder 16 by welding or the like. Out of the side edges of the support bracket 17, the outer edge facing the outer side in the boat width direction Y is trapezoidal and is connected to the longitudinal bulkhead 14 by welding or the like.
Among the side edges of the support bracket 17, a trapezoidal leg is formed, and the upper edge facing upward is connected to the lower surface of the upper deck 11 by welding or the like. In addition, a trapezoidal leg may be formed, and the lower edge portion facing downward may be formed in a curved shape that protrudes downward in the front view.

図２（ａ）に示すように、複数の支持ブラケット１７は、船首尾方向Ｘの位置により大きさが互いに異なっている。すなわち、上面視でホールド中央線Ｌ１から船首尾方向Ｘの外側に向けて、縦通隔壁１４と円弧状ガーダー１６との間の船幅方向Ｙの大きさが大きくなるのに伴って、支持ブラケット１７の船幅方向Ｙの大きさが大きくなっている。複数の支持ブラケット１７は、近接部Ｐ１（ホールド中央線Ｌ１）を船首尾方向Ｘに挟む位置に対称に配置されている。   As shown in FIG. 2 (a), the plurality of support brackets 17 are different in size depending on the position in the ship passing direction X. That is, as the size in the width direction Y between the longitudinal bulkhead 14 and the arc-shaped girder 16 increases from the hold center line L1 to the outside in the ship-going direction X in top view, the support bracket The size of 17 in the width direction Y is large. The plurality of support brackets 17 are symmetrically disposed at positions sandwiching the proximity portion P1 (hold center line L1) in the ship passing direction X.

円弧状ガーダー１６のうち、所定領域Ｋに位置する部分は、支持ブラケット１７が設けられた部分よりも下方に向けた突出量が小さくなっている。
円弧状ガーダー１６の所定領域Ｋの船首尾方向Ｘの大きさは、互いに隣り合う支持フレーム１５同士の間の間隔の半分以上となっている。図示の例では、円弧状ガーダー１６の中央部分１６Ａにおける船首尾方向Ｘの両端部に、支持フレーム１５が各別に接続されている。すなわち、所定領域Ｋの船首尾方向Ｘの大きさと、互いに隣り合う支持フレーム１５同士の間の間隔と、が互いに一致している。 The portion of the arc-shaped girder 16 located in the predetermined region K has a smaller amount of downward protrusion than the portion where the support bracket 17 is provided.
The size in the ship-going direction X of the predetermined area K of the arc-shaped girder 16 is half or more of the distance between the adjacent support frames 15. In the illustrated example, support frames 15 are separately connected to both ends of the center direction 16A of the arc-shaped girder 16 in the boat passing direction X, respectively. In other words, the size of the predetermined direction K in the ship-succeeding direction X and the distance between the supporting frames 15 adjacent to each other coincide with each other.

以上説明したように、本実施形態に係る船舶１によれば、円弧状ガーダー１６が、上甲板１１の下面における独立カバー１３の下端に対応する位置から下方に向けて突出するとともに、ホールド中央線Ｌ１を船首尾方向Ｘに挟む位置に跨って周方向に円弧状に延びている。このため、独立カバー１３を支持する上甲板１１が上下方向Ｚに撓み変形するのを、円弧状ガーダー１６により抑えることができる。これにより、上甲板１１および独立カバー１３の強度を確保することができる。   As described above, according to the ship 1 according to the present embodiment, the arc-shaped girder 16 protrudes downward from the position corresponding to the lower end of the independent cover 13 on the lower surface of the upper deck 11, and It extends in a circular arc shape in the circumferential direction across the position where L1 is sandwiched in the ship passing direction X. For this reason, it is possible to suppress the bending deformation of the upper deck 11 supporting the independent cover 13 in the vertical direction Z by the arc-shaped girders 16. Thereby, the strength of the upper deck 11 and the independent cover 13 can be secured.

また、円弧状ガーダー１６のうち、所定領域Ｋに位置する部分は、支持ブラケット１７が設けられた部分よりも下方に向けた突出量が小さくなっている。このため、円弧状ガーダー１６のうち、支持ブラケット１７が設けらず、独立カバー１３の荷重を直接支持することのない所定領域Ｋに位置する部分の下方に向けた突出量を小さくすることで、円弧状ガーダー１６全体の体積を小さくすることが可能になる。これにより、円弧状ガーダー１６により上甲板１１の強度を確保しながら、船舶１全体の重量が大きくなるのを抑えることができる。   Further, the portion of the arc-shaped girder 16 located in the predetermined region K has a smaller amount of downward protrusion than the portion where the support bracket 17 is provided. Therefore, by reducing the amount of downward protrusion of a portion of the arc-shaped girder 16 which is not provided with the support bracket 17 and does not directly support the load of the independent cover 13 and which is located in the predetermined area K, It is possible to reduce the overall volume of the arc-shaped girder 16. Thereby, it is possible to suppress an increase in the weight of the entire ship 1 while securing the strength of the upper deck 11 by the arc-shaped girder 16.

また、所定領域Ｋの船首尾方向Ｘの大きさが、互いに隣り合う支持フレーム１５同士の間の間隔の半分以上となっているので、円弧状ガーダー１６のうち、縦通隔壁１４に最も近接する近接部Ｐ１の周辺に支持ブラケット１７を設ける必要が無い。このため、縦通隔壁１４との船幅方向Ｙの距離が小さい部分に、例えば溶接作業等により支持ブラケット１７を接続する作業を行う必要が無く、支持ブラケット１７を円弧状ガーダー１６および縦通隔壁１４に接続する際の作業性を確保することができる。
また、縦通隔壁１４との船幅方向Ｙの距離が小さいために、支持ブラケット１７を設けることが難しい所定範囲Ｋ内においても、円弧状ガーダー１６が下方に向けて突出していることにより、上甲板１１のうち、所定範囲Ｋと上面視で重なる部分の強度を確実に確保することができる。 In addition, since the size of the predetermined direction K in the ship's passing direction X is half or more of the interval between the support frames 15 adjacent to each other, the arcuate girder 16 is closest to the longitudinal bulkhead 14. There is no need to provide the support bracket 17 around the proximity portion P1. For this reason, there is no need to connect the support bracket 17 by welding or the like at a portion where the distance in the boat width direction Y to the longitudinal partition 14 is short, for example. The workability at the time of connecting to 14 can be secured.
Further, since the distance between the longitudinal bulkhead 14 and the widthwise direction Y is small, the arc-shaped girder 16 protrudes downward also within the predetermined range K where it is difficult to provide the support bracket 17. The strength of the portion of the deck 11 overlapping with the predetermined range K in top view can be reliably ensured.

以上、本発明の実施の形態について図面を参照して詳述したが、具体的な構成はこの実施の形態に限られるものではなく、本発明の要旨を逸脱しない範囲の設計変更等も含まれる。
例えば、上記実施形態では、円弧状ガーダー１６のうち、所定領域Ｋに位置する部分は、支持ブラケット１７が設けられた部分よりも下方に向けた突出量が小さい構成を示したが、このような態様に限られない。円弧状ガーダー１６のうち、所定領域Ｋに位置する部分は、支持ブラケット１７が設けられた部分よりも下方に向けた突出量が大きくてもよいし、周方向の全域にわたって、下方に向けた突出量が同等であってもよい。 The embodiment of the present invention has been described in detail with reference to the drawings, but the specific configuration is not limited to this embodiment, and design changes and the like within the scope of the present invention are also included. .
For example, in the above embodiment, the portion of the arc-shaped girders 16 located in the predetermined region K has a configuration in which the amount of downward protrusion is smaller than that of the portion where the support bracket 17 is provided. It is not limited to the aspect. The portion of the arc-shaped girder 16 located in the predetermined area K may have a large amount of downward protrusion below the portion provided with the support bracket 17 or may be downwardly protruding over the entire circumferential direction. The amounts may be equal.

また、上記実施形態では、所定領域Ｋの船首尾方向Ｘの大きさが、互いに隣り合う支持フレーム同士の間の間隔の半分以上である構成を示したが、このような態様に限られない。
所定領域Ｋの船首尾方向Ｘの大きさは、互いに隣り合う支持フレーム同士の間の間隔の半分未満であってもよい。 Moreover, in the said embodiment, although the magnitude | size of the ship direction X of predetermined area | region K showed the structure which is more than half of the space | interval between the support frames which adjoin mutually, it is not restricted to such an aspect.
The size of the predetermined direction K in the ship's passing direction X may be less than half of the distance between adjacent support frames.

また、上記実施形態では、円弧状ガーダー１６が、上面視で中心軸Ｏ１を船幅方向Ｙに挟む位置に２つ設けられた構成を示したが、このような態様に限られない。円弧状ガーダー１６は３つ以上設けられてもよい。   Moreover, in the said embodiment, although the circular arc girder 16 showed the structure provided in the position which pinches | interposes the central axis O1 in the ship width direction Y by upper surface view, it is not restricted to such an aspect. Three or more arc-shaped girder 16 may be provided.

１ 船舶
１０ 船体
１１ 上甲板
１１Ａ 開口部
１２ 独立タンク
１３ 独立カバー
１４ 縦通隔壁
１５ 支持フレーム
１６ 円弧状ガーダー
１７ 支持ブラケット
１８ 縦通骨材
Ｋ 所定領域
Ｌ１ ホールド中央線 1 Vessel 10 Hull 11 Upper Deck 11A Opening 12 Independent Tank 13 Independent Cover 14 Longitudinal Partition 15 Support Frame 16 Arc Girder 17 Support Bracket 18 Longitudinal Material K Specified Area L1 Hold Central Line

Claims (3)

船体と、
該船体に設けられた上甲板と、
前記船体の上甲板に形成された上面視円形状を呈する開口部から上部が突出するように前記船体に設けられた独立タンクと、
前記独立タンクの上部を覆うとともに、下端が前記開口部に沿って前記上甲板上に設けられた独立カバーと、
前記船体内に設けられ、前記上甲板における前記開口部の船幅方向の外側で、船首尾方向に延びて前記上甲板を下方から支持する縦通隔壁と、
前記上甲板の下面における前記独立カバーの下端に対応する位置から下方に向けて突出するとともに、少なくとも１つが、上面視における前記独立タンクの中心を通り、かつ船幅方向に延びるホールド中央線を、船首尾方向に挟む位置に跨って前記開口部の周方向に延び、円弧状をなす複数の円弧状ガーダーと、
前記円弧状ガーダーにおける前記縦通隔壁に最も近接する部分を含む周方向の所定領域を除く部分に設けられて、前記縦通隔壁と前記円弧状ガーダーとを船幅方向に接続する複数の支持ブラケットと、を備える船舶。 The hull,
An upper deck provided on the hull;
An independent tank provided on the hull so that an upper portion thereof protrudes from an opening having a circular top view formed on an upper deck of the hull;
An independent cover which covers the upper part of the independent tank and whose lower end is provided on the upper deck along the opening;
A longitudinal bulkhead provided inside the hull and extending in the direction of the ship's flight outside the widthwise direction of the opening in the upper deck to support the upper deck from below;
A hold center line projecting downward from a position corresponding to the lower end of the independent cover on the lower surface of the upper deck, and at least one passing through the center of the independent tank in top view and extending in the ship width direction, A plurality of arc-shaped girders extending in the circumferential direction of the opening and straddling a position sandwiching in the ship's direction;
A plurality of support brackets provided in a portion excluding a predetermined region in the circumferential direction including a portion closest to the longitudinal bulkhead in the circular arc girder, and connecting the longitudinal bulkhead and the arcuate girder in the ship width direction And ships. 前記円弧状ガーダーのうち、前記所定領域に位置する部分は、前記支持ブラケットが設けられた部分よりも、下方に向けた突出量が小さい請求項１に記載の船舶。   The ship according to claim 1, wherein a portion of the arc-shaped girder located in the predetermined area has a smaller amount of downward protrusion than a portion provided with the support bracket. 前記縦通隔壁に直交して接続され、かつ前記縦通隔壁に沿って上下方向に延びるとともに、船首尾方向に互いに間隔をあけて設けられた複数の支持フレームを備え、
前記所定領域の船首尾方向の大きさは、互いに隣り合う前記支持フレーム同士の間の間隔の半分以上である請求項１又は２に記載の船舶。 A plurality of support frames are connected to the longitudinal bulkhead perpendicularly and extend in the vertical direction along the longitudinal bulkhead, and are spaced from each other in the direction of the ship.
The ship according to claim 1 or 2, wherein the size of the predetermined direction in the forward direction is half or more of the distance between the adjacent support frames.
JP2017133837A 2017-07-07 2017-07-07 Ship Active JP6535931B2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2017133837A JP6535931B2 (en) 2017-07-07 2017-07-07 Ship
KR1020180015065A KR102051734B1 (en) 2017-07-07 2018-02-07 Ship

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2017133837A JP6535931B2 (en) 2017-07-07 2017-07-07 Ship

Publications (2)

Publication Number Publication Date
JP2019014400A JP2019014400A (en) 2019-01-31
JP6535931B2 true JP6535931B2 (en) 2019-07-03

Family

ID=65280909

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2017133837A Active JP6535931B2 (en) 2017-07-07 2017-07-07 Ship

Country Status (2)

Country Link
JP (1) JP6535931B2 (en)
KR (1) KR102051734B1 (en)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR790001748B1 (en) * 1973-04-13 1979-12-16 졸탄 와아라 세실 Load bearers for bearing solid of revolution tanks having vertical axis of revolution on board ships
JPH01164696A (en) * 1987-09-16 1989-06-28 Mitsubishi Heavy Ind Ltd Ship with dome on upper deck
JP5139902B2 (en) 2008-07-16 2013-02-06 川崎重工業株式会社 Load carrier

Also Published As

Publication number Publication date
KR102051734B1 (en) 2019-12-03
KR20190005711A (en) 2019-01-16
JP2019014400A (en) 2019-01-31

Similar Documents

Publication Publication Date Title
JP5403900B2 (en) Liquefied gas carrier
CN111788115B (en) Ship with a detachable cover
KR20230058351A (en) Container ship
JP2017087992A (en) Ship
JP6535931B2 (en) Ship
JP2018140723A (en) Installation structure of deck crane and marine vessel
KR20180040887A (en) Container Ship
KR101897727B1 (en) Hull support structure for liquefied gas tank, and liquefied gas carrier vessel
KR200487091Y1 (en) Degassing duct fixing apparatus for gas dome of lng carrier
JP6139957B2 (en) Sphere support structure for liquefied gas carrier
KR101727765B1 (en) Lashing bridge for container ship
CN103661793A (en) Ship based oblique double-bottom arc-shaped bilge
JP2012224354A (en) Method for reducing air resistance of container and ship
WO2019044194A1 (en) Riser pipe support structure
KR102179904B1 (en) Container Ship
JP6650781B2 (en) Ship
JP5139902B2 (en) Load carrier
KR101985453B1 (en) Structure of water duct for an anti-rolling tank
KR20190036786A (en) Ship
KR101552925B1 (en) Ship which load cargo and method of loading
JP4786671B2 (en) Ship passage, ship and method for manufacturing ship passage
JP6578580B2 (en) Ship
KR101940307B1 (en) Ship Having Short Bulbous Bow
KR101973373B1 (en) Ship
JP2017149293A (en) Connection component, mast, and ship

Legal Events

Date Code Title Description
A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20190311

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20190507

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20190514

R150 Certificate of patent or registration of utility model

Ref document number: 6535931

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150