CN102328727B

CN102328727B - Segmenting methods of chassis of heavy oceaneering crane of deepwater pipe-lay crane vessel

Info

Publication number: CN102328727B
Application number: CN201110144786.0A
Authority: CN
Inventors: 边道田; 贾琪琳
Original assignee: 江苏熔盛造船有限公司; 江苏熔盛重工有限公司; 江苏熔盛船舶工程研究设计院有限公司
Priority date: 2011-06-01
Filing date: 2011-06-01
Publication date: 2014-03-12
Also published as: CN102328727A

Abstract

The invention discloses segmenting methods of a chassis of a heavy oceaneering crane of a deepwater pipe-lay crane vessel. The bottom of the chassis is installed on the deck floor of a deepwater pipe-lay crane vessel, and the upper part of the chassis respectively penetrates through a main deck and a deck A. The invention provides the following three subsection methods that the chassis is divided into three parts by the main deck and the deck A; or the part below the deck A is divided into two parts, namely a left part and a right part, and the part above the 301A of the deck A is an independent segment; or the lower two parts divided in the first method are divided into a left part and a right part. The invention has the advantages that, by adoption of the segmenting methods, accuracy can be controlled very well and a vertical stiffener of the cylindrical chassis cannot broken, the strength of the chassis can be ensured and the segmental hoisting can be realized effectively, difficulty in overturn is reduced, installation efficiency is improved and the overall quality and accuracy can be ensured.

Description

The segmentation method of the heavy sea crane base of deep water pipe laying crane ship

Technical field

The present invention relates to a kind of heavy sea crane base segmentation method of deep water pipe laying crane ship, specifically a kind of to precision control well, the vertical stiffener of cylindrical base do not disconnect, when guaranteeing itself intensity, can also effectively realize handling subsection, reduce the heavy sea crane base segmented mode of the deep water pipe laying crane ship that stands up difficulty.

Background technology

On large-scale deep water pipe laying crane ship, build at present the heavy sea crane base of 813.20 tons of weighing also do not have can reference technique, due to bulky, base out of roundness suitable for reading requires high, can not adopt traditional integral installation method; If disassemble rear assembling completely, work capacity is too large, and the assembly precision of various piece can not guarantee, affects total quality.

Summary of the invention

Main task of the present invention is to provide a kind of heavy sea crane base segmentation method of deep water pipe laying crane ship, specifically a kind of precision is controlled, can also effectively guarantee well the heavy sea crane base of the deep water pipe laying crane ship that base intensity is not damaged divides segment process.

In order to solve above technical matters, the segmentation method of the heavy sea crane base of a kind of deep water pipe laying crane ship of the present invention, its base bottom is arranged on above the platform deck of 9100mm of hull, top is respectively through the A deck of main deck and the 20300mm of 14000mm, it is characterized in that: by this base segment section from described platform deck to main deck is divided into, be designated as 301B; Segment section from this main deck to this A deck being, is designated as 301A; Above this 301A segmentation, it is TUB segmentation.

Also the 301A section of base and 301B section can be divided into 2 segmentations in left and right, dividing range is the 200mm place apart from hull center line face at larboard, the middle part of larboard one side and bottom are respectively 301AC and 301BC section, and the middle part of starboard one side and bottom are respectively 301AD and 301BD section; 301A section be above TUB section still as an independently segmentation, no longer carry out segmentation, and this TUB section is built after the dock of the left and right segmentation of lift-launch 301A, 301B closes up.

Another program is: a kind of segmentation method of heavy sea crane base of deep water pipe laying crane ship, its base bottom is arranged on above the platform deck of 9100mm of hull, top is respectively through the A deck of main deck and the 20300mm of 14000mm, it is characterized in that: this base is drawn and is longitudinally divided into 2 segmentations in left and right, dividing range is the 200mm place apart from hull center line face at larboard, larboard one side is left side segmentation from this platform deck to this A deck, is designated as 301C; Starboard one side is right side segmentation from this platform deck to this A deck, is designated as 301D; The TUB section that to be positioned at part above A deck be this base, still as an independently segmentation, no longer carry out segmentation, and this TUB section is built after the dock that carries the left and right segmentation of 301A, 301B closes up.

The invention has the advantages that: adopt above segmentation, to precision control well, the vertical stiffener of cylindrical base do not disconnect, and when guaranteeing itself intensity, can also effectively realize handling subsection, reduce and stand up difficulty, improve installation effectiveness, guaranteed total quality and precision.

Accompanying drawing explanation

Fig. 1 is the perspective view of the upright state of base of the present invention;

Fig. 2 is the perspective view of base handstand state of the present invention;

Fig. 3 is the present invention's the first scheme segmented mode schematic diagram;

Fig. 4 is alternative plan segmented mode schematic diagram of the present invention;

Fig. 5 is third party's case segmented mode schematic diagram of the present invention.

The specific embodiment

Referring to Fig. 1-Fig. 5, the present invention plans to build heavy sea crane base and is positioned at hull afterbody, and hoisting crane own wt is 4000 tons.During stern fixed mode, radius of turn is 43m, and load-carrying ability is 4000 tons; During full circle swinging pattern, radius of turn 33m, load-carrying ability is 3500 tons.

Planning to build hoist base is that diameter is the cylinder type of 24.3m, and it is highly 13.40m, and cylindrical shell top is that wall thickness is that 45mm material is the steel plate of EH36-Z35, and bottom is the steel plate that thickness of slab 30mm and 45mm material are EH36.Cylinder body bottom is welded on the platform 14 of baseline 9100mm, and the barrel wall that 2.2m is high is still arranged on A deck 2 at its top.

Due to 813.20 tons of hoist base structure gross weights of the present invention, when dock carries, safe load-carrying ability can reach 700 tons, for guaranteeing safe construction, the base of cylinder type must be carried out to sectional construction, this segmentation should guarantee precision, guarantees that again the intensity of cylinder self is unaffected, also will consider technique and lifting while building.It is the main and normal mode combining of building that the build process of whole cylinder type base of the present invention has been defined as counter making.

Understructure of the present invention is as depicted in figs. 1 and 2: base radius of turn is 33m, and take main deck 1 and A deck 2 is the end, is divided into three layers.Every one deck is equipped with deck base plate 3 in its bottom, the equidistant reinforced rib 4 that is provided with on deck base plate 3, and be equipped with crossbeam 5 at the horizontal direction of deck base plate 3, on crossbeam 5, vertically weld transcerse bulkhead 6; Longitudinal direction at deck base plate 3 is laid longeron 7, is vertically welded with longitudinal bulkhead 8 on longeron 7.

Outer at above-mentioned base radius is established stiffener 9 straight up, and at stiffener upper berth barrel plate 10, at base top hoop, has ring stiffener 11.

For main deck 1 can connect, on the cylinder type base on main deck 1 top, have bottom, arch ，Gong hole, hole and lay one deck pipe laying slideway 13.

During fabrication, two schemes are proposed:

The first scheme, as shown in Figure 3: by cylindrical shell segmentation by carrying out up and down segmentation division, from 9100mm A/B platform deck to 14000mm A/B(main deck 1) be segment section, be designated as 301B section; From 14000mm A/B main deck to 20300mmA/B(A deck 2) be segment section, be designated as 301A section.Part more than 301A section is TUB section, and TUB section is also as an independently segmentation, and it is built after closing up in 301A, the lift-launch of 301B section dock, sees Fig. 3.Another pipe laying slideway structure, also as a segmentation, is finally built.

The advantage of this scheme is that 301A section is done as a whole construction, and precision is controlled can be better, and in addition, its height dimension drops to 6.3m, and handling and sectional turn-over are convenient.Shortcoming is that vertical stiffener 9 has been disconnected at segmentation seam place.

Alternative plan, as shown in Figure 4: tube structure is carried out to segmentation division by left and right, from 9100mmA/B platform deck to 20300mm A/B(A deck 2) tube structure be divided into left and right 2 segmentations, dividing range is the 200mm place apart from hull center line face at larboard, larboard one side is 301C section, and starboard one side is 301D section.The TUB section of more than 2 part in A deck is identical with the first scheme.

This scheme advantage is that vertical stiffener 9 does not disconnect, and shortcoming is handling subsection, stand up and increased difficulty.

One of above two scheme are that upper and lower segmentation, one are left and right segmentations, and it has limitation, and impact is built.Finally, the first two scheme is merged, compromise and the 3rd scheme, as shown in Figure 5:

Be mainly base in the segmentation of carrying out with A deck 2 and 1 two basal planes of main deck, its division step is as follows:

By the lower segment section 301B section of the 14000mmA/B main deck of the tube structure shown in Fig. 31 to 9100A/B platform deck, be divided into 2 segmentations in left and right, its dividing range is at larboard apart from hull center line face 200mm place, and larboard one side is 301BC section, and starboard one side is 301BD section.

By the 14000mmA/B of the tube structure shown in Fig. 3 (main deck 1) to 20300mmA/B(A deck 2) upper segment section 301A section, be divided into equally 2 segmentations in left and right, its dividing range is at larboard apart from hull center line face 200mm place, and larboard one side is 301AC section, and starboard one side is 301AD section.

301AC section and the part above 301AD section, 20300mmA/B(A deck 2) above part is as a TUB section independently, no longer divides.

This scheme can be take 4 segmentations respectively the main deck 1 of 14000mm and the A deck 2 of 20300mm as basal plane construction, then two of the left side sections of 301BC sections and 301AC are first assembled, utilize the vertical stiffener structure of hoist base self as template barrel plate 9 in bulk, after standing up, be lifted on hull platform, then two of assembled the right segmentation 301BD sections and 301AD section, after standing up, be lifted on hull platform, then left and right two parts are merged as cylindric; Finally, on the cylindric base of moulding, take A deck 2 as bottom, accurately locate vertical stiffener, take vertical stiffener as template TUB segmentation in bulk barrel plate, complete TUB section and build.

This segmentation method had both solved builds choosing of basal plane, saved the material of extra template, guarantee the intensity of base, solved again the difficult problem of standing up difficulty, lifting difficulty, easily causing the distortion of base out of roundness, effectively realized the accurate construction of manufacturing the segmentation of goliath base.

Claims

1. the sectional construction method of the heavy sea crane base of a deep water pipe laying crane ship, its base bottom is arranged on above the platform deck of 9100mm of hull, top is respectively through the A deck of main deck and the 20300mm of 14000mm, it is characterized in that: by this base segment section from described platform deck to main deck is divided into, be designated as 301B; Segment section from this main deck to this A deck being, is designated as 301A; Above this 301A section, it is TUB section; The 301A section of base and 301B section are respectively divided into 2 segmentations in left and right, and dividing range is the 200mm place apart from hull center line face at larboard, and the middle part of larboard one side and bottom are respectively 301AC and 301BC section, and the middle part of starboard one side and bottom are respectively 301AD and 301BD section; 301A section be above this TUB section still as an independently segmentation, no longer carry out segmentation, and this TUB section is carried construction on laggard navigating at the left and right of 301A, 301B segmentation dock;

It is that basal plane is built that above-mentioned 301AC section, 301BC section, 301AD and 301BD section be take respectively the main deck of 14000mm and the A deck of 20300mm, then two of the left side sections of 301BC sections and 301AC are first assembled, utilize the vertical stiffener structure of hoist base self as template barrel plate in bulk, after standing up, be lifted on hull platform, then two of assembled the right segmentation 301BD sections and 301AD section, after standing up, be lifted on hull platform, then left and right two parts are merged as cylindric; Finally, on the cylindric base of moulding, take A deck as bottom, accurately locate vertical stiffener, take vertical stiffener as template TUB segmentation in bulk barrel plate, complete TUB section and build.

2. the sectional construction method of the heavy sea crane base of a deep water pipe laying crane ship, its base bottom is arranged on above the platform deck of 9100mm of hull, top is respectively through the A deck of main deck and the 20300mm of 14000mm, it is characterized in that: this base is drawn and is longitudinally divided into 2 segmentations in left and right, dividing range is the 200mm place apart from hull center line face at larboard, larboard one side is left side segmentation from this platform deck to this A deck, is designated as 301C; Starboard one side is right side segmentation from this platform deck to this A deck, is designated as 301D; The TUB section that to be positioned at part above A deck be this base, still as an independently segmentation, no longer carry out segmentation, and this TUB section is built after the dock that carries the left and right segmentation of 301C, 301D closes up;

After left side segmentation 301C and right side segmentation 301D are stood up, be lifted on hull platform, then left and right two parts are merged as cylindric; Finally, on the cylindric base of moulding, take A deck as bottom, accurately locate vertical stiffener, take vertical stiffener as template TUB segmentation in bulk barrel plate, complete TUB section and build.