JPH0840360A - Crane barge with float - Google Patents
Crane barge with floatInfo
- Publication number
- JPH0840360A JPH0840360A JP6197434A JP19743494A JPH0840360A JP H0840360 A JPH0840360 A JP H0840360A JP 6197434 A JP6197434 A JP 6197434A JP 19743494 A JP19743494 A JP 19743494A JP H0840360 A JPH0840360 A JP H0840360A
- Authority
- JP
- Japan
- Prior art keywords
- crane barge
- floating body
- crane
- trim
- barge
- 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
- Jib Cranes (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は浮体付クレーンバージに
関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a crane barge with a floating body.
【０００２】[0002]
【従来の技術】従来のクレーンバージの吊り上げ前後の
トリム状態を図６説明図により説明すると、同図(II)に
示すように、クレーンバージ０１の荷役クレーン０２で
重量物０３を吊り上げると船首トリムＴが発生するの
で、同図（I)に示すように、予めカウンターバラストを
漲り吊り上げ前に船尾トリムをつけておき、重量物を吊
り上げた状態で許容内船首トリムに収まるような操作を
している。しかしながらカウンターバラスト方式のみで
は、重量物吊り上げ時のトリムやスタビリティー性能を
満足させるためにバージ船体の主寸法がほぼ一義的に決
定される。従って吊り荷重を大きくするためにはバージ
船体を大型化する必要がある。また図７説明図に示すよ
うに、初期船尾トリムをつけることにより吊りフックと
船体の距離が縮まるので、必要なアウトリーチを確保す
るためにクレーンジブの長さを予め船尾トリムの影響を
考慮して決定する必要がある。2. Description of the Related Art A conventional crane barge trimming state before and after hoisting will be described with reference to FIG. 6 which illustrates a bow trim when a heavy cargo 03 is hoisted by a cargo handling crane 02 of a crane barge 01 as shown in FIG. Since T occurs, as shown in (I) of the same figure, operate the counter ballast in advance to attach the stern trim before lifting, and hold the heavy object in the allowable inner bow trim while lifting it. There is. However, with the counter ballast method alone, the main dimensions of the barge hull are almost uniquely determined in order to satisfy trim and stability performance when lifting heavy objects. Therefore, in order to increase the suspension load, it is necessary to upsize the barge hull. Also, as shown in the explanatory diagram in Fig. 7, the distance between the suspension hook and the hull is shortened by adding the initial stern trim. Therefore, in order to secure the necessary outreach, consider the effect of the stern trim in advance on the length of the crane jib. Need to decide.
【０００３】[0003]
【発明が解決しようとする課題】本発明は、このような
事情に鑑みて提案されたもので、重量物吊り上げによる
トリム，スタビリティーやアウトリーチの問題を軽減す
ることができる浮体付クレーンバージを提供することを
目的とする。SUMMARY OF THE INVENTION The present invention has been proposed in view of the above circumstances, and provides a crane barge with a floating body which can alleviate the problems of trim, stability and outreach caused by lifting a heavy object. The purpose is to provide.
【０００４】[0004]
【課題を解決するための手段】そのために本発明は、ク
レーンバージの船首部にクレーンバージを着水させ無負
荷状態での吃水線より上方に位置するように船体中央部
の船幅より両舷に張り出した形状とした張り出し浮体を
設けたことを特徴とする。To this end, the present invention is designed to place the crane barge on the bow of the crane barge so that the crane barge is positioned above the dwarf line in the unloaded state on both sides of the ship. It is characterized in that an overhanging floating body having a projecting shape is provided.
【０００５】[0005]
【作用】本発明浮体付クレーンバージにおいては、船首
部両側の張り出し部分が重量物を吊り上げた時に発生す
るトリム，ヒールによって水に浸り、従来の船型より大
きな浮力でトリム，ヒールを打ち消す力が発生する。ま
た水線面形状が船首部で幅広となるため、水線面での断
面二次モーメントが増加し復原力が増す。In the crane barge with a floating body of the present invention, the overhanging portions on both sides of the bow are immersed in water by the trim and heel generated when a heavy object is lifted, and a force to cancel the trim and heel is generated with a larger buoyancy than the conventional hull form. To do. In addition, since the waterline surface shape becomes wider at the bow, the moment of inertia of area at the waterline surface increases and the restoring force increases.
【０００６】[0006]
【実施例】本発明浮体付クレーンバージの実施例を図面
について説明すると、図１は本クレーンバージの実施例
１の側面図、図２は同上の平面図、図３は同上の張り出
し浮体の詳細図、図４は実施例２の張り出し浮体の詳細
図、図５は本クレーンバージの作動の説明図である。ま
ず図１〜図３の実施例１において、クレーンバージ１の
船首部１ａに、船体中央部の船幅より両舷に張り出した
形状の直方体形の張り出し浮体２を左右均等に設置して
あり、この張り出し浮体２は、クレーンバージ１を着水
させた状態で無負荷時のバージ吃水線Ｃより上部に設置
される。これは、重量物吊り上げ前のクレーンバージ１
の位置決め，吊点のセンター合わせの際に、クレーンバ
ージ１の没水部分を小さくし、クレーンバージ１の操船
を容易にするためである。換言すれば、吊り上げ前から
没水部分が大きい場合には、波潮流等によるクレーンバ
ージ１への作用力が大きくなり操船上不具合となるから
である。なおコントロール室４で操作される荷役クレー
ン３のクレーンブーム３ａは、張り出し浮体２の首尾線
方向長さｌの１／２位置又はその前方に設けている。Embodiments of the crane barge with a floating body of the present invention will be described with reference to the drawings. FIG. 1 is a side view of the first embodiment of the crane barge of the present invention, FIG. 2 is a plan view of the same as above, and FIG. FIG. 4, FIG. 4 is a detailed view of the overhanging floating body of the second embodiment, and FIG. 5 is an explanatory view of the operation of the crane barge. First, in the first embodiment of FIGS. 1 to 3, on the bow 1a of the crane barge 1, the rectangular parallelepiped projecting floating bodies 2 having a shape projecting on both sides from the ship width at the center of the hull are installed evenly on the left and right sides, The overhanging floating body 2 is installed above the barge waterline C when the crane barge 1 is in contact with water when there is no load. This is the crane barge 1 before lifting heavy objects
This is to make the submerged portion of the crane barge 1 small and facilitate the maneuvering of the crane barge 1 at the time of positioning and centering of the suspension point. In other words, when the submerged portion is large before the hoisting, the acting force on the crane barge 1 due to the wave current and the like becomes large, which causes a problem in maneuvering. The crane boom 3a of the cargo handling crane 3 operated in the control chamber 4 is provided at a position 1/2 of the length l of the overhanging floating body 2 in the direction of the tail line or in front thereof.
【０００７】またこのようなクレーンバージ１において
は、曳航時においても、船首部１ａの没水面積が小さい
ので船体抵抗が小さくて操船上有効であり、なお図５に
示すような吊り上げ前の状態において、海面と張り出し
浮体２の隙間は吊り荷の重量物５の重量により調整さ
れ、吊り荷の地切り前に張り出し浮体２が着水し、地切
り時においてクレーンバージ１に充分な浮力を与えるよ
うになっている。なお図５に示すように初期トリム減小
により、吊り上げ重量物５のサイズ制限を緩和すること
ができる。Also, in such a crane barge 1, even during towing, the submerged area of the bow 1a is small, so that the hull resistance is small and it is effective in maneuvering, and the state before lifting as shown in FIG. In, the clearance between the sea surface and the overhanging floating body 2 is adjusted by the weight of the heavy object 5 of the suspended load, and the overhanging floating body 2 lands on the ground before unloading the suspended load, and gives sufficient buoyancy to the crane barge 1 when unloading the ground. It is like this. As shown in FIG. 5, by reducing the initial trim, the size restriction of the heavy lifting object 5 can be relaxed.
【０００８】次に図４の実施例２は、張り出し浮体２′
の形状を、船底部から上甲板にかけて突出すように傾斜
をつけた構造としたものであり、この場合、実施例１に
比べて、吊り荷の地切りまでの間に、徐々に船体が沈む
間に水線面積が増え、地切りまでのクレーンバージ１の
吃水の変化が一定であり、荷役クレーン３の操作は容易
となるが、張り出し浮体２′の没水体積が少ないため実
施例１よりも、張り出し浮体２′による浮力は小さくな
る。またこの実施例２においては、張り出し浮体２′の
後方は更にその一部を切り取り、船体抵抗を軽減してい
る。Next, a second embodiment shown in FIG. 4 is a projecting floating body 2 '.
Has a structure in which it is inclined so as to project from the bottom of the ship to the upper deck. In this case, compared with the first embodiment, the hull gradually sinks before the ground cutting of the suspended load. In the meantime, the water line area increases, the change in water drainage of the crane barge 1 until the ground cutting is constant, and the operation of the cargo handling crane 3 is easy, but since the submerged volume of the overhanging floating body 2'is smaller than in Example 1. However, the buoyancy of the overhanging floating body 2'is reduced. Further, in the second embodiment, a part of the rear portion of the overhanging floating body 2'is cut off to reduce the hull resistance.
【０００９】従ってクレーンバージ１が大型の場合は実
施例１が適当であり、小型の場合は実施例２が適当であ
る。なお張り出し浮体２，２′の容量は吊荷重の使用目
的により自由に設計できるものとする。またクレーンバ
ージ１は船首部１ａに張り出し浮体２，２′及びクレー
ンブーム３ａを設けているので、船首部１ａが重たくな
りトリムが発生する傾向にあるが、バージ着水状態にお
いてトリムが発生しないように設計が可能である。Therefore, when the crane barge 1 is large, the first embodiment is suitable, and when it is small, the second embodiment is suitable. The capacities of the overhanging floating bodies 2 and 2'can be freely designed according to the purpose of using the hanging load. Further, since the crane barge 1 is provided with the overhanging floats 2 and 2'and the crane boom 3a on the bow 1a, the bow 1a tends to become heavy and trim occurs, but the trim does not occur when the barge is in contact with water. Can be designed into
【００１０】かくしてこのようなクレーンバージ１によ
れば、重量物５を吊り上げることによって起こる船首ト
リムを減小できるので、予め船尾トリムを生じさせるカ
ウンターバラストの量を減小させることができるととも
に、船型を小型化でき経済的メリットがでる。また吊り
上げ重量重心の船体中心線からのずれによって生ずるヒ
ールを減小できる。更に初期トリム減小による吊り上げ
重量物５のサイズ制限の緩和ができる。Thus, according to such a crane barge 1, since the bow trim caused by lifting the heavy object 5 can be reduced, the amount of the counter ballast which causes the stern trim in advance can be reduced and the hull form can be reduced. Can be downsized, and there are economic advantages. Further, the heel caused by the deviation of the center of gravity of the lifting weight from the center line of the hull can be reduced. Further, the size limitation of the heavy lifting object 5 can be relaxed by reducing the initial trim.
【００１１】[0011]
【発明の効果】要するに本発明によれば、クレーンバー
ジの船首部にクレーンバージを着水させ無負荷状態での
吃水線より上方に位置するように船体中央部の船幅より
両舷に張り出した形状とした張り出し浮体を設けたこと
により、重量物吊り上げによるトリム，スタビリティー
やアウトリーチの問題を軽減することができる浮体付ク
レーンバージを得るから、本発明は産業上極めて有益な
ものである。EFFECTS OF THE INVENTION According to the present invention, in short, the crane barge is landed on the bow of the crane barge, and the crane barge is projected to both sides from the width of the center of the hull so as to be positioned above the dwarf line in the unloaded state. By providing the projecting floating body having a shape, a crane barge with a floating body which can alleviate the problems of trim, stability and outreach due to lifting of heavy objects is obtained, and therefore the present invention is extremely useful industrially.
【図１】本発明浮体付クレーンバージの実施例１の側面
図である。FIG. 1 is a side view of a crane barge with a floating body according to a first embodiment of the present invention.
【図２】同上の平面図である。FIG. 2 is a plan view of the above.
【図３】同上の張り出し浮体の詳細図である。FIG. 3 is a detailed view of the above-mentioned overhanging floating body.
【図４】実施例２の張り出し浮体の詳細図である。FIG. 4 is a detailed view of an overhanging floating body according to a second embodiment.
【図５】本浮体付クレーンバージの作動の説明図であ
る。FIG. 5 is an explanatory diagram of an operation of the crane barge with the present floating body.
【図６】従来のクレーンバージの作動の説明図である。FIG. 6 is an explanatory view of the operation of the conventional crane barge.
【図７】従来のクレーンバージの作動の説明図である。FIG. 7 is an explanatory view of the operation of the conventional crane barge.
１ クレーンバージ １ａ 船首部 ２，２′ 張り出し浮体 ３ 荷役クレーン ３ａ クレーンブーム ４ コントロール室 ５ 重量物 1 Crane barge 1a Bow 2,2 'Overhanging float 3 Cargo handling crane 3a Crane boom 4 Control room 5 Heavy goods
Claims (3)
ジを着水させ無負荷状態での吃水線より上方に位置する
ように船体中央部の船幅より両舷に張り出した形状とし
た張り出し浮体を設けたことを特徴とする浮体付クレー
ンバージ。1. A projecting floating body having a shape projecting to both sides of the ship width in the center of the hull so that the crane barge is landed on the bow bar of the crane barge and is positioned above the waterline in an unloaded state. A crane barge with a floating body.
甲板にかけ突出すように傾斜を付けたことを特徴とする
請求項１の浮体付クレーンバージ。2. The crane barge with a floating body according to claim 1, wherein both sides of the overhanging floating body are inclined so as to project from the bottom of the ship to the upper deck.
方向長さの１／２位置又はその前方に設けたことを特徴
とする請求項１，２の浮体付クレーンバージ。3. The crane barge with a floating body according to claim 1, wherein the crane boom is provided at a position half of the length of the overhanging floating body in the direction of the tail line or in front thereof.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19743494A JP3238286B2 (en) | 1994-07-29 | 1994-07-29 | Crane barge with floating body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19743494A JP3238286B2 (en) | 1994-07-29 | 1994-07-29 | Crane barge with floating body |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0840360A true JPH0840360A (en) | 1996-02-13 |
| JP3238286B2 JP3238286B2 (en) | 2001-12-10 |
Family
ID=16374454
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19743494A Expired - Fee Related JP3238286B2 (en) | 1994-07-29 | 1994-07-29 | Crane barge with floating body |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3238286B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10181682A (en) * | 1996-12-24 | 1998-07-07 | M Ii C Eng Service Kk | Wave-resistant type grabdredger |
| CN101850833A (en) * | 2010-05-17 | 2010-10-06 | 大连华锐股份有限公司 | Swing arm type crane barge for mounting wind power equipment |
| CN103963931A (en) * | 2014-04-20 | 2014-08-06 | 中交一航局第二工程有限公司 | Large component semi-submersible water transport installation system and construction method |
| CN106495027A (en) * | 2016-12-27 | 2017-03-15 | 江苏金风科技有限公司 | Lifting, unloading goods method, system and loop wheel machine platform are compensated automatically with wave |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5349793A (en) * | 1976-10-04 | 1978-05-06 | Tax Hans | Crane ship |
| JPS6485894A (en) * | 1987-09-28 | 1989-03-30 | Toshiba Corp | Offshore float stabilizer |
-
1994
- 1994-07-29 JP JP19743494A patent/JP3238286B2/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5349793A (en) * | 1976-10-04 | 1978-05-06 | Tax Hans | Crane ship |
| JPS6485894A (en) * | 1987-09-28 | 1989-03-30 | Toshiba Corp | Offshore float stabilizer |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10181682A (en) * | 1996-12-24 | 1998-07-07 | M Ii C Eng Service Kk | Wave-resistant type grabdredger |
| CN101850833A (en) * | 2010-05-17 | 2010-10-06 | 大连华锐股份有限公司 | Swing arm type crane barge for mounting wind power equipment |
| CN103963931A (en) * | 2014-04-20 | 2014-08-06 | 中交一航局第二工程有限公司 | Large component semi-submersible water transport installation system and construction method |
| CN106495027A (en) * | 2016-12-27 | 2017-03-15 | 江苏金风科技有限公司 | Lifting, unloading goods method, system and loop wheel machine platform are compensated automatically with wave |
| CN106495027B (en) * | 2016-12-27 | 2020-03-10 | 江苏金风科技有限公司 | Method and system for hoisting and unloading goods with automatic wave compensation and crane platform |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3238286B2 (en) | 2001-12-10 |
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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: 20010905 |
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| LAPS | Cancellation because of no payment of annual fees |