JP3634302B2 - Girder structure of vehicle deck of car carrier - Google Patents

Girder structure of vehicle deck of car carrier Download PDF

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Publication number
JP3634302B2
JP3634302B2 JP2001366545A JP2001366545A JP3634302B2 JP 3634302 B2 JP3634302 B2 JP 3634302B2 JP 2001366545 A JP2001366545 A JP 2001366545A JP 2001366545 A JP2001366545 A JP 2001366545A JP 3634302 B2 JP3634302 B2 JP 3634302B2
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Japan
Prior art keywords
ship
vehicle deck
girder
deck
cross
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
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JP2001366545A
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Japanese (ja)
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JP2003165483A (en
Inventor
義雄 田中
真矢 森永
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Shin Kurushima Dockyard Co Ltd
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Shin Kurushima Dockyard Co Ltd
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Filing date
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Priority to JP2001366545A priority Critical patent/JP3634302B2/en
Publication of JP2003165483A publication Critical patent/JP2003165483A/en
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Expired - Fee Related legal-status Critical Current

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  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
  • Body Structure For Vehicles (AREA)

Description

【0001】
【発明の属する技術分野】
本発明は、自動車運搬船における船側ウエブフレームと車両甲板の横桁とを接合する桁構造の改良に関する。
【0002】
【従来の技術】
この種の自動車運搬船の車両甲板の桁構造は、自動車運搬船における船側ウエブフレームと車両甲板の横桁とを接合する構造として知られている。
図4および図5は、従来の自動車運搬船の車両甲板の桁構造を説明するためのものであり、図4が同構造を示す断面図、図5が図4のA−A線に沿う断面図である。
【0003】
これらの図において、従来の自動車運搬船の車両甲板の桁構造101は、船側外板102の内面壁102aに最上層甲板から船底側に向けて配置されている略T字形状をした船側ウエブフレーム103と車両甲板104の横桁105とを同一断面内に配置し、前記船側ウエブフレーム103のフェイス面103aと横桁105のフェイス面105aとを接合してなるものである(第1の従来技術)。また、前記各横桁105,105,…の上には、車両甲板104が敷設されている。なお、ウエブフレーム103の側にはブラケット106が設けられている。図6ないし図8は従来の他の自動車運搬船の車両甲板の桁構造を説明するためものであり、図6が同構造の断面図、図7が図6のB−B線断面図、図8が図6のC−C線断面図である。
【0004】
これらの図において、従来の他の自動車運搬船の車両甲板の桁構造船側201は、船側外板202の内面壁202aに設けたウエブフレーム203に短い追加横桁204を固定し、この追加横桁204の先端に追加縦桁205を固定し、この追加縦桁205に当該追加横桁204,204,…と車両甲板206の横桁207,207,…とが互い違いになるように配置してなるものである(特開2001−180572号公報(第2の従来技術)。なお、ウエブフレーム203の側にはブラケット208が設けられている。
この第2の従来技術では、自動車運搬船の車両甲板の桁構造201を柔構造にし、ラッキング力に対応させている。なお、ラッキング力とは、四角の構造体を菱形に変形させる力のことをいう。
【0005】
【発明が解決しようとする課題】
第1の従来技術によれば、ラッキング力について何らの対策もしていないため、船体が波浪あるいは船体の傾斜運動により生じる積載荷物の水平方向慣性力によりラッキング変形すると、ウエブフレーム103と車両甲板104の横桁の変形差により、外板102、車両甲板104、フェイス面103a、ブラケット106によって囲まれた部分に大きな剪断力が働き、当該構造が破損する恐れがあった。
また、第2の従来技術によれば、当該構造部の追加縦桁205の部分がヒンジになり、回転するため、横桁207の撓みが大きくなり、クリアハイトを保つためには甲板間高さを大きくとる必要がある。その結果、船体型深さが深くなり、船体重量の増加およびスタビリティの悪化の原因となっていた。
本発明は、従来の上述した不都合を解消し、船体のラッキング変形による損傷を防止し、かつ、横桁の撓みを抑えた自動車運搬船の車両甲板の桁構造を提供することを目的としている。
【0006】
【課題を解決するための手段】
上記目的を達成するために、請求項1記載の発明に係る自動車運搬船の車両甲板の桁構造は、自動車運搬船における船側ウエブフレームと車両甲板の横桁とを接合する桁構造において、船側外板の内面壁に最上層甲板から船底側に向けて配置されている前記船側ウエブフレームと車両甲板の横桁とを同一断面内に配置してなり、かつ、前記船側ウエブフレームと車両甲板の横桁との交差部から船側外板の間に船舶前後方向にボックスガーダを配置してなることを特徴とする。
【0007】
【発明の実施の形態】
以下、本発明の実施の形態について図面を参照して説明する。
図1ないし図3は本発明の実施の形態を説明するためのものである。ここに、図1は、本発明の実施の形態に係る自動車運搬船の車両甲板の桁構造が適用された自動車運搬船を示す横置断面図である。図2は、本発明の実施の形態に係る自動車運搬船の車両甲板の桁構造を示す図1のA部拡大図である。図3は、図2のD−D線に沿う断面図である。
【0008】
この図1において、自動車運搬船1の貨物区域を横置断面で示したものであって、船側外板2の内面壁2aとピラー3との間に多層の車両甲板4を設けた構造をしており、船底側面側に船側タンク5が設けられている。また、自動車運搬船1は、図示しないが、船首タンク、居室、操舵室、機関室、その他が設けられている。
【0009】
次に、自動車運搬船の車両甲板の桁構造について図2および図3を参照して説明する。図2および図3において、本発明の実施の形態に係る自動車運搬船の車両甲板の桁構造11は、船側外板2の内面壁2aに最上層甲板から船底側に向けて垂直に配置されている前記船側ウエブフレーム12と、車両甲板4の横桁13とを同一断面内に配置してなり、かつ、前記船側ウエブフレーム12と車両甲板4の横桁13との交差部から船側外板2の内面壁2aとの間にボックスガーダ14を配置してなるものである。
【0010】
このボックスガーダ14の寸法は、深さdが前記車両甲板4の横桁13の深さと同じに形成されており、幅wが船側外板2の内面壁2aから前記船側ウエブフレーム12の深さにフェイス面12aの深みを加えたものと同じ長さに形成されており、かつ、長さl(エル)が前記船側ウエブフレーム12,12の間の長さに形成されており、しかも、船側ウエブフレーム12に対して直角方向に設けられている。
【0011】
このような自動車運搬船の車両甲板の桁構造によれば、船体が、波浪あるいは慣性力によりラッキング変形しても、船側ウエブフレーム12の変形と車両甲板4の横桁13の変形との差がボックスガーダ14によって緩和されることになり、船側外板2、車両甲板4、ボックスガーダ14に囲まれた部分に発生する剪断力が小さくなり、構造の破損を防止できる。
また、船側ウエブフレーム12と車両甲板4の横桁13との接合は剛構造になっているため、貨物積載時の横桁13の撓みを小さくすることができ、甲板間ひいては船体型深さを浅く、船体重量の軽量化およびスタビリティの向上を図ることができる。
【0012】
【発明の効果】
以上説明したように本発明によれば、船側外板の内面壁に最上層甲板から船底側に向けて配置されている前記船側ウエブフレームと車両甲板の横桁とを同一断面内に配置してなり、かつ、前記船側ウエブフレームと車両甲板の横桁との交差部から船側外板の間にボックスガーダを配置してなるので、次のような効果がある。
【0013】
(1)この自動車運搬船の車両甲板の桁構造によれば、船体が風あるいは慣性力によりラッキング変形しても、船側ウエブフレームの変形と車両甲板の横桁の変形との差がボックスガーダによって緩和されることになり、船側外板、車両甲板、ボックスガーダに囲まれた部分の剪断力が小さくなり、構造の破損を防止できる。
(2)船側ウエブフレームと車両甲板の横桁との接合は剛構造になっているため、貨物積載時の横桁の撓みを小さくすることができ、甲板間ひいては船体型深さを浅く、船体重量の軽量化およびスタビリティの向上を図ることができる。
【図面の簡単な説明】
【図1】本発明の実施の形態に係る自動車運搬船の車両甲板の桁構造が適用された自動車運搬船を示す横置断面図である。
【図2】本発明の実施の形態に係る自動車運搬船の車両甲板の桁構造を示す断面図である。
【図3】図2のD−D線に沿う断面図である。
【図4】従来の自動車運搬船の車両甲板の桁構造を示す断面図である。
【図5】図4のA−A線に沿う断面図である。
【図6】従来の他の自動車運搬船の車両甲板の桁構造を示す断面図である。
【図7】図6のB−B線断面図である。
【図8】図6のC−C線断面図である。
【符号の説明】
1 自動車運搬船
2 船側外板
3 ピラー
4 車両甲板
11 自動車運搬船の車両甲板の桁構造
12 船側ウエブフレーム
13 横桁
14 ボックスガーダ
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an improvement in a girder structure that joins a ship side web frame and a cross girder of a vehicle deck in a car carrier.
[0002]
[Prior art]
The girder structure of the vehicle deck of this kind of car carrier is known as a structure that joins the ship side web frame and the cross girder of the car deck in the car carrier.
4 and 5 are for explaining a girder structure of a vehicle deck of a conventional car carrier, FIG. 4 is a cross-sectional view showing the structure, and FIG. 5 is a cross-sectional view taken along the line AA of FIG. It is.
[0003]
In these drawings, a vehicle deck girder structure 101 of a conventional automobile carrier has a substantially T-shaped ship-side web frame 103 arranged on the inner wall 102a of the ship-side outer plate 102 from the uppermost deck to the ship bottom side. And the cross beam 105 of the vehicle deck 104 are arranged in the same cross section, and the face surface 103a of the ship-side web frame 103 and the face surface 105a of the cross beam 105 are joined (first prior art). . Further, a vehicle deck 104 is laid on each of the cross beams 105, 105,. A bracket 106 is provided on the web frame 103 side. FIGS. 6 to 8 are for explaining the girder structure of the vehicle deck of another conventional car carrier. FIG. 6 is a cross-sectional view of the structure, FIG. 7 is a cross-sectional view taken along the line BB of FIG. These are CC sectional view taken on the line of FIG.
[0004]
In these figures, a girder structure 201 of a vehicle deck of another conventional car carrier has a short additional cross beam 204 fixed to a web frame 203 provided on an inner wall 202a of the ship side outer plate 202, and this additional cross beam 204 is fixed. The additional stringer 205 is fixed to the front end of the vehicle, and the additional stringer 204 is arranged so that the additional stringers 204, 204,... And the beam beams 207, 207,. (Japanese Unexamined Patent Publication No. 2001-180572 (second prior art)) A bracket 208 is provided on the web frame 203 side.
In the second prior art, the girder structure 201 of the vehicle deck of the car carrier is made flexible so as to cope with the racking force. Note that the racking force refers to a force that deforms a square structure into a rhombus.
[0005]
[Problems to be solved by the invention]
According to the first prior art, since no measures are taken with respect to the racking force, the web frame 103 and the vehicle deck 104 are deformed when the hull is deformed by the horizontal inertial force of the load caused by waves or the tilting motion of the hull. Due to the difference in deformation of the cross beams, a large shearing force is applied to the portion surrounded by the outer plate 102, the vehicle deck 104, the face surface 103a, and the bracket 106, and the structure may be damaged.
In addition, according to the second prior art, the portion of the additional stringer 205 of the structure portion becomes a hinge and rotates, so that the deflection of the beam 207 increases, and the height between decks is maintained in order to maintain a clear height. It is necessary to take a large. As a result, the hull form depth was increased, which caused an increase in hull weight and deterioration of stability.
SUMMARY OF THE INVENTION An object of the present invention is to provide a girder structure for a vehicle deck of an automobile carrier ship that eliminates the above-mentioned inconveniences, prevents damage due to racking deformation of the hull, and suppresses the bending of the horizontal girder.
[0006]
[Means for Solving the Problems]
In order to achieve the above object, the girder structure of the vehicle deck of the car carrier according to the invention described in claim 1 is a girder structure in which the ship side web frame and the cross girder of the vehicle deck in the car carrier ship are joined. The ship side web frame arranged on the inner wall from the uppermost deck toward the ship bottom side and the cross beam of the vehicle deck are arranged in the same cross section, and the ship side web frame and the cross beam of the vehicle deck A box girder is arranged in the ship front-rear direction between the crossing section and the ship side skin.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
1 to 3 are for explaining an embodiment of the present invention. FIG. 1 is a horizontal sectional view showing an automobile carrier to which a vehicle deck girder structure of an automobile carrier according to an embodiment of the present invention is applied. FIG. 2 is an enlarged view of a part A in FIG. 1 showing the girder structure of the vehicle deck of the car carrier according to the embodiment of the present invention. FIG. 3 is a cross-sectional view taken along the line DD in FIG.
[0008]
In FIG. 1, a cargo section of an automobile carrier 1 is shown in a transverse section, and a multi-layer vehicle deck 4 is provided between an inner wall 2 a of a ship-side outer plate 2 and a pillar 3. The ship side tank 5 is provided on the ship bottom side surface side. In addition, the car carrier 1 is provided with a bow tank, a living room, a steering room, an engine room, and the like (not shown).
[0009]
Next, the girder structure of the vehicle deck of the car carrier will be described with reference to FIGS. 2 and 3, the vehicle deck girder structure 11 of the car carrier according to the embodiment of the present invention is vertically arranged on the inner wall 2a of the ship side skin 2 from the uppermost deck to the ship bottom side. The ship side web frame 12 and the cross beam 13 of the vehicle deck 4 are arranged in the same cross section, and the ship side outer plate 2 is formed from the intersection of the ship side web frame 12 and the cross beam 13 of the vehicle deck 4. A box girder 14 is arranged between the inner wall 2a.
[0010]
The size of the box girder 14 is such that the depth d is the same as the depth of the cross beam 13 of the vehicle deck 4, and the width w is the depth of the ship side web frame 12 from the inner wall 2 a of the ship side skin 2. And the depth of the face surface 12a is added to the same length, and the length l (el) is formed between the ship-side web frames 12 and 12, and the ship side It is provided in a direction perpendicular to the web frame 12.
[0011]
According to the girder structure of the vehicle deck of such a car carrier, even if the hull is deformed by racking due to waves or inertia, the difference between the deformation of the ship-side web frame 12 and the deformation of the horizontal girder 13 of the vehicle deck 4 is a box. The girder 14 reduces the shearing force generated in the portion surrounded by the ship side outer plate 2, the vehicle deck 4, and the box girder 14, thereby preventing structural damage.
Moreover, since the joint between the ship side web frame 12 and the cross beam 13 of the vehicle deck 4 has a rigid structure, the bending of the cross beam 13 during cargo loading can be reduced, and the depth between the decks and the hull form depth can be reduced. It is shallow and can reduce hull weight and improve stability.
[0012]
【The invention's effect】
As described above, according to the present invention, the ship-side web frame arranged on the inner wall of the ship-side outer plate from the uppermost deck to the ship bottom side and the cross beam of the vehicle deck are arranged in the same cross section. Since the box girder is arranged between the ship side outer plate and the crossing portion of the ship side web frame and the cross beam of the vehicle deck, the following effects are obtained.
[0013]
(1) According to the girder structure of the vehicle deck of this car carrier, even if the hull is racked and deformed by wind or inertia, the difference between the deformation of the ship side web frame and the deformation of the cross of the vehicle deck is mitigated by the box girder. As a result, the shearing force of the portion surrounded by the ship side skin, the vehicle deck, and the box girder is reduced, and damage to the structure can be prevented.
(2) Since the joint between the ship side web frame and the cross beam on the vehicle deck has a rigid structure, it is possible to reduce the deflection of the cross beam when loading cargo, and between the decks, and thus the hull form depth is shallow. The weight can be reduced and the stability can be improved.
[Brief description of the drawings]
FIG. 1 is a transverse sectional view showing an automobile carrier to which a vehicle deck girder structure of an automobile carrier according to an embodiment of the present invention is applied.
FIG. 2 is a cross-sectional view showing a girder structure of a vehicle deck of an automobile carrier according to an embodiment of the present invention.
FIG. 3 is a cross-sectional view taken along the line DD of FIG.
FIG. 4 is a cross-sectional view showing a girder structure of a vehicle deck of a conventional automobile carrier.
5 is a cross-sectional view taken along line AA in FIG.
FIG. 6 is a cross-sectional view showing a girder structure of a vehicle deck of another conventional car carrier.
7 is a cross-sectional view taken along line BB in FIG.
8 is a cross-sectional view taken along the line CC of FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Car carrier 2 Ship side skin 3 Pillar 4 Vehicle deck 11 Girder structure of vehicle deck of car carrier 12 Ship side web frame 13 Cross girder 14 Box girder

Claims (1)

自動車運搬船における船側ウエブフレームと車両甲板の横桁とを接合する桁構造において、
船側外板の内面壁に最上層甲板から船底側に向けて配置されている前記船側ウエブフレームと車両甲板の横桁とを同一断面内に配置してなり、かつ、前記船側ウエブフレームと車両甲板の横桁との交差部から船側外板の間に船舶前後方向にボックスガーダを配置してなることを特徴とする自動車運搬船の車両甲板の桁構造。
In a girder structure that joins a ship side web frame and a car deck cross beam in an automobile carrier ship,
The ship side web frame arranged on the inner wall of the ship side outer plate from the uppermost deck to the ship bottom side and the cross beam of the vehicle deck are arranged in the same cross section, and the ship side web frame and the vehicle deck A girder structure for a vehicle deck of an automobile carrier ship, in which a box girder is arranged in the front-rear direction of the ship between the crossing with the horizontal girder and the ship side skin.
JP2001366545A 2001-11-30 2001-11-30 Girder structure of vehicle deck of car carrier Expired - Fee Related JP3634302B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2001366545A JP3634302B2 (en) 2001-11-30 2001-11-30 Girder structure of vehicle deck of car carrier

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Application Number Priority Date Filing Date Title
JP2001366545A JP3634302B2 (en) 2001-11-30 2001-11-30 Girder structure of vehicle deck of car carrier

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Publication Number Publication Date
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JP3634302B2 true JP3634302B2 (en) 2005-03-30

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Publication number Priority date Publication date Assignee Title
JP5613288B1 (en) * 2013-05-21 2014-10-22 株式会社新来島どっく Cargo hold structure of chip carrier
JP2016128282A (en) * 2015-01-09 2016-07-14 株式会社新来島どっく Intra-warehouse structure of car carrier
JP6055855B2 (en) * 2015-02-23 2016-12-27 株式会社新来島どっく How to determine the depth of a web carrier's web frame.
JP6962679B2 (en) * 2016-10-28 2021-11-05 三井E&S造船株式会社 Liquefied gas fuel ship
CN116902130B (en) * 2023-09-06 2023-12-05 招商局金陵船舶(威海)有限公司 Deck skeleton for reinforcing cabin of PCTC (prestressed concrete cylinder pipe) ship

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