CN106741624B - Bulk cargo ship hatch coaming and ship opening longitudinal girder with total strength being completely taken into account - Google Patents
Bulk cargo ship hatch coaming and ship opening longitudinal girder with total strength being completely taken into account Download PDFInfo
- Publication number
- CN106741624B CN106741624B CN201611123886.4A CN201611123886A CN106741624B CN 106741624 B CN106741624 B CN 106741624B CN 201611123886 A CN201611123886 A CN 201611123886A CN 106741624 B CN106741624 B CN 106741624B
- Authority
- CN
- China
- Prior art keywords
- hatch
- longitudinal
- hatch coaming
- bulk cargo
- stringer
- 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
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B19/00—Arrangements or adaptations of ports, doors, windows, port-holes, or other openings or covers
- B63B19/08—Ports or like openings in vessels' sides or at the vessels' bow or stern
-
- 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
- B63B3/54—Hatch openings
Abstract
The invention discloses a bulk cargo ship hatch coaming and a ship port longitudinal girder, which completely take total strength into account, and comprises: a longitudinal hatch coaming, which is continuous along the ship length direction, the material elastic yield limit of the longitudinal hatch coaming is increased by 16% relative to the material elastic yield limit of the main deck, and the height of the longitudinal hatch coaming is reduced to be less than 600mm at the cross bulkhead; a hatch stringer having a hatch stringer height less than a conventional hatch stringer height. The invention can improve the rigidity of the hull beam structure, improve the fatigue life of the hatch corner, improve the cargo hold volume, and reduce the weight of the longitudinal member structure in the cargo hold area by more than 3 percent on average.
Description
Technical Field
The invention relates to the technical field of hatch coamings, in particular to a hatch coaming of a bulk cargo ship and a fore-aft longitudinal girder.
Background
The longitudinal hatch coamings of the traditional bulk cargo ship are generally designed into discontinuous structural patterns, and the total longitudinal strength of a hull beam cannot be counted in the standard calculation. The actual situation is that the hatch coaming has a small part to participate in the total strength, which is too conservative for the main hull structure compared to the actual situation, whereas it is dangerous for the hatch coaming itself. In addition, the height of the conventional hatch longitudinal girder of the small and medium-sized bulk cargo ship is generally higher, so that the inclined plate of the whole top side cabin is slightly close to the neutral axis, and meanwhile, the volume of a part of the cargo hold is lost.
Disclosure of Invention
In view of the above problems, it is an object of the present invention to provide a hatch coaming and fore-aft stringer for a bulk cargo ship, which fully take into account the total strength.
In order to achieve the purpose, the invention adopts the technical scheme that:
a bulk cargo ship hatch coaming and fore-aft stringer with total incorporated strength, comprising: a longitudinal hatch coaming, which is continuous along the ship length direction, the material elastic yield limit of the longitudinal hatch coaming is increased by 16% relative to the material elastic yield limit of the main deck, and the height of the longitudinal hatch coaming is reduced to be less than 600mm at the cross bulkhead; a hatch stringer having a hatch stringer height less than a conventional hatch stringer height.
The bulk cargo ship hatch coaming and fore-aft stringer fully including the total strength is described, wherein the deck longitudinal ribs closest to the longitudinal hatch coaming are locally variable in spacing.
The above is fully incorporated into the bulk cargo ship hatch coaming and fore-aft stringers of total strength, wherein the deck stringers closest to the longitudinal hatch coaming are upturned above the main deck.
The above bulk cargo ship hatch coaming and fore-aft stringer, which are fully incorporated into the overall strength, wherein the longitudinal hatch coaming forms an inverted trapezoidal groove at the transverse bulkhead.
The hatch coaming and the fore-aft stringer of the bulk cargo ship are completely taken into account of the total strength, and are suitable for medium-sized bulk cargo ships and small-sized bulk cargo ships.
The invention has the positive effect compared with the prior art because of adopting the technology
(1) The invention can improve the rigidity of the hull beam structure, improve the fatigue life of the hatch corner, improve the cargo hold volume, and reduce the weight of the longitudinal member structure in the cargo hold area by more than 3 percent on average.
Drawings
FIG. 1 is a schematic illustration of bulk cargo ship hatch coaming and fore-aft stringers of the present invention, fully incorporated for overall strength.
FIG. 2 is a schematic illustration of the bulk cargo ship hatch coaming and fore-aft stringers of the present invention fully incorporated for overall strength.
In the drawings: 1. a longitudinal hatch coaming; 11. a reversed trapezoidal groove; 2. a main deck; 3. a hatch stringer; 4. the longitudinal bone of the nail plate.
Detailed Description
The invention is further described with reference to the following drawings and specific examples, which are not intended to be limiting.
Fig. 1 is a schematic view of a bulk cargo ship hatch coaming and fore-aft girder fully including total strength according to the present invention, and fig. 2 is a schematic view of a bulk cargo ship hatch coaming and fore-aft girder fully including total strength according to the present invention, and fig. 1 and 2 show a preferred embodiment of a bulk cargo ship hatch coaming and fore-aft girder fully including total strength, comprising: longitudinal hatch coaming 1, longitudinal hatch coaming 1 is continuous along the length direction of the ship. The material elastic yield limit of the longitudinal hatch coaming 1 is increased by 16% in relation to the material elastic yield limit of the main deck 2, from the point of view of controlling the weight of the empty ship. The height of the longitudinal hatch coaming 1 is reduced to below 600mm at the transverse bulkhead for facilitating personnel access and mooring equipment placement.
In addition, as a preferred embodiment, the bulk cargo ship hatch coaming and fore-aft stringer fully taking into account the total strength further comprises: hatch stringer 3, hatch stringer 3 being of slightly lower height than conventional hatch stringers. The height of the conventional hatch stringers ranges from 700mm to 800mm, while the modified hatch stringers 3 are reduced by 200mm to 400mm compared to the conventional hatch stringers.
Further, in a preferred embodiment, the longitudinal frame of the deck closest to the longitudinal hatch coaming 1 is locally spaced to make room for construction.
Further, in the preferred embodiment, the deck longitudinals closest to the longitudinal hatch coamings 1 are either upturned above the main deck 2 to allow room for construction.
Still further, as a preferred embodiment, it is also possible to suitably increase the distance between the deck stringers 4 and the hatch stringers 3 closest to the ship, the increased distance between the deck stringers and the hatch stringers ranging from 100mm to 200 mm.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope and the implementation manner of the present invention.
The present invention also has the following embodiments in addition to the above:
in a further embodiment of the invention, and with continued reference to fig. 1, the longitudinal hatch coaming 1 forms an inverted trapezoidal groove 11 at the transverse bulkhead.
In a further embodiment of the invention, the longitudinal hatch coaming 1 fully accounts for the total strength, since the longitudinal hatch coaming 1 is continuous in the direction of the length of the ship.
In a further embodiment of the present invention, the material of the longitudinal hatch coaming 1 and the main deck 2 is selected according to the change of the elastic yield limit, for example, if the material of the main deck 2 is H36 steel, the longitudinal hatch coaming 1 is H47 steel; if the main deck 2 is made of H32 steel, the longitudinal hatch coaming 1 is made of H40 steel.
In a further embodiment of the invention, the continuity feature of the longitudinal hatch coaming 1 also improves the shear resistance of the hatch longitudinal girder 3, thus having the possibility of reducing the height of the hatch longitudinal girder 3 on the premise of ensuring the local construction space.
In a further embodiment of the invention, the height of the hatch stringers 3 should be as small as possible in order to increase the contribution of the top deck swash plate structure to the hull beam section modulus and to increase the cargo compartment volume.
In a further embodiment of the invention, the bulk cargo ship hatch coaming and fore-aft stringer, which are fully integrated in the overall strength, are suitable for medium-sized bulk cargo ships and small-sized bulk cargo ships.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention.
Claims (3)
1. A bulk cargo ship hatch coaming and fore-aft stringer with total strength being fully accounted for, comprising:
a longitudinal hatch coaming, which is continuous along the ship length direction, the material elastic yield limit of the longitudinal hatch coaming is increased by 16% relative to the material elastic yield limit of the main deck, and the height of the longitudinal hatch coaming is reduced to be less than 600mm at the cross bulkhead;
a hatch stringer having a height of less than 700 mm;
the deck longitudinal bones closest to the longitudinal hatch coamings adopt local variable spacing;
the deck longitudinals closest to the longitudinal hatch coamings are upturned above the main deck.
2. Bulk cargo ship hatch coaming and transom stringer with total incorporated strength as claimed in claim 1, wherein said longitudinal hatch coaming forms an inverted trapezoidal groove at the transverse bulkhead.
3. The bulk cargo ship hatch coaming and fore-aft stringer with full integrated total strength of claim 1, wherein said stringer is suitable for medium and small bulk cargo ships.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611123886.4A CN106741624B (en) | 2016-12-08 | 2016-12-08 | Bulk cargo ship hatch coaming and ship opening longitudinal girder with total strength being completely taken into account |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611123886.4A CN106741624B (en) | 2016-12-08 | 2016-12-08 | Bulk cargo ship hatch coaming and ship opening longitudinal girder with total strength being completely taken into account |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106741624A CN106741624A (en) | 2017-05-31 |
| CN106741624B true CN106741624B (en) | 2020-04-24 |
Family
ID=58877493
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611123886.4A Active CN106741624B (en) | 2016-12-08 | 2016-12-08 | Bulk cargo ship hatch coaming and ship opening longitudinal girder with total strength being completely taken into account |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106741624B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108945314B (en) * | 2018-07-06 | 2020-05-22 | 中国船舶工业集团公司第七0八研究所 | Cargo hold area structure of oil supply ship |
| CN111634366B (en) * | 2020-06-05 | 2021-12-17 | 中国船舶工业集团公司第七0八研究所 | Typical cargo hold layout of large bulk carrier |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS517673Y2 (en) * | 1971-01-13 | 1976-03-01 | ||
| JPS5336891A (en) * | 1976-09-14 | 1978-04-05 | Hitachi Zosen Corp | Expansible and contractible hold port for cargo ship |
| CN202541781U (en) * | 2012-03-15 | 2012-11-21 | 上海船厂船舶有限公司 | Novel hatch coaming |
-
2016
- 2016-12-08 CN CN201611123886.4A patent/CN106741624B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS517673Y2 (en) * | 1971-01-13 | 1976-03-01 | ||
| JPS5336891A (en) * | 1976-09-14 | 1978-04-05 | Hitachi Zosen Corp | Expansible and contractible hold port for cargo ship |
| CN202541781U (en) * | 2012-03-15 | 2012-11-21 | 上海船厂船舶有限公司 | Novel hatch coaming |
Non-Patent Citations (1)
| Title |
|---|
| 4900t散货船总体及结构设计特点;蒋肇曦等;《江苏船舶》;20160430;第5-7页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106741624A (en) | 2017-05-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| RU108411U1 (en) | INLAND VESSEL WITH VARIABLE LOAD CAPACITY | |
| CN111284631B (en) | Bow structure of ship and ship | |
| CN108349570B (en) | Ship with a detachable cover | |
| CN208306931U (en) | Elevator landing structure peculiar to vessel | |
| CN106741624B (en) | Bulk cargo ship hatch coaming and ship opening longitudinal girder with total strength being completely taken into account | |
| RU2624142C2 (en) | Hybrid single-body glassing vessel | |
| US20130247813A1 (en) | Elevated walkway for improved cabin height | |
| AU2016374621A1 (en) | Stabilized hull for a keeled monohull sailboat or sail and motor boat | |
| CN106476985B (en) | Bulk cargo ship hatch coaming with partial total strength and ship opening longitudinal girder | |
| CN208602640U (en) | Naval vessel heavy duty deck sandwich | |
| CN208993868U (en) | A kind of lashing bridge of the container ship with superstructure integrated design | |
| CN105620655B (en) | A kind of double bottom structure of LNG carrier | |
| US20150144049A1 (en) | Buoyant, Variably Buoyant and Non-Buoyant Foil Structures for Marine Vessels and Watercraft | |
| CN109018191A (en) | A kind of novel freighter stem | |
| CN107745781A (en) | A kind of fertile large transport ship of rise of floor or deadrise | |
| US9751593B2 (en) | Wave piercing ship hull | |
| CN104520180A (en) | Ship | |
| CN208233288U (en) | Cabin structure and cattle-ship | |
| CN114313098A (en) | Structural style for improving total longitudinal strength of large opening area on ship strong deck lower side | |
| CN107585257A (en) | A kind of kiloton bulk freighter ship type | |
| CN107128438A (en) | A kind of longitudinal framed plate structure applied to Large Container Ship | |
| CN219506186U (en) | Hatch coaming structure capable of counting total longitudinal strength | |
| CN109866871A (en) | A kind of full ship anti-collision structure of ship topside | |
| EP2647564B1 (en) | Floating vessel | |
| CN114919690B (en) | Roll-on-roll-off ship superstructure vibration damping structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |