CN112027020A - Building method of three-step ladder type subsection - Google Patents
Building method of three-step ladder type subsection Download PDFInfo
- Publication number
- CN112027020A CN112027020A CN202010691904.9A CN202010691904A CN112027020A CN 112027020 A CN112027020 A CN 112027020A CN 202010691904 A CN202010691904 A CN 202010691904A CN 112027020 A CN112027020 A CN 112027020A
- Authority
- CN
- China
- Prior art keywords
- platform
- plate
- segment
- platform segment
- welding
- 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
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B73/00—Building or assembling vessels or marine structures, e.g. hulls or offshore platforms
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B73/00—Building or assembling vessels or marine structures, e.g. hulls or offshore platforms
- B63B73/10—Building or assembling vessels from prefabricated hull blocks, i.e. complete hull cross-sections
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B73/00—Building or assembling vessels or marine structures, e.g. hulls or offshore platforms
- B63B73/40—Building or assembling vessels or marine structures, e.g. hulls or offshore platforms characterised by joining methods
- B63B73/43—Welding, e.g. laser welding
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Ladders (AREA)
Abstract
The invention relates to a three-step ladder type subsection building method, which is characterized in that a three-step ladder type subsection to be built is divided into an upper platform section, a middle platform section and a lower platform section, the three sections are respectively built and molded on a plane jig frame, then the middle platform section and the lower platform section are reversely folded by taking the middle platform section as a base surface, the two sections are welded to form two step sections, the two step sections are normally placed on a linear jig frame by turning over 180 degrees, then the upper platform section and the two step sections are normally folded, and the three-step ladder type subsection is integrally welded to obtain the three-step ladder type subsection. The implementation of the invention solves the problems that the three-step ladder type subsection is directly reversely folded and molded on the plane jig frame and the manufacturing height of the jig frame is too high, and the sectional construction is adopted on the construction mode, so that the height of the jig frame is reduced, the construction risk is greatly reduced and the construction efficiency is improved.
Description
Technical Field
The invention relates to the technical field of ship subsection construction, in particular to a three-step ladder type subsection construction method.
Background
In the existing container ship cargo hold, due to the fact that linear shrinkage of an outer plate part is large in a head area, in the design process, a step-type design is basically adopted, in order to reduce the number of segmentation, three-step ladder-type segmentation often occurs in the construction process, and the existing container ship cargo hold is usually formed by combining three layers of platforms which are all flat surfaces and are parallel to each other. For the construction of a three-step ladder section, the prior art will typically suffer from the following disadvantages:
(1) the platform directly above the whole subsection is constructed in a reverse state by taking the base surface as the base surface, the height of the jig frame is set to be too high, and the potential safety hazard of construction exists.
(2) The platform directly above the whole subsection is constructed in a reverse state by taking the base plane as the base plane, a large amount of overhead welding work exists between the platform and the rib plate part, and the welding efficiency is low.
(3) The whole subsection is directly built in a reverse state by taking the upper platform as a base surface, and after the subsection is folded and welded, the whole turnover difficulty is large, and certain safety risk exists.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a building method of a three-step ladder-shaped subsection, which solves the problems of overhigh manufacturing height, large construction risk, low building efficiency and the like of a moulding bed when the existing subsection is directly reversely folded and formed on a plane moulding bed, and the technical purpose of the invention is realized by the following technical scheme:
a three-step ladder type sectional construction method, comprising the following steps:
dividing a three-step trapezoidal segmented platform plate into an upper platform segment, a middle platform segment and a lower platform segment according to the position of the three-step trapezoidal segmented platform plate, and respectively building the upper platform segment, the middle platform segment and the lower platform segment on a planar jig;
step two, taking a middle platform plate of the middle platform segment as a base surface and placing the middle platform plate on a plane jig frame, and carrying and folding the lower platform segment on the upper end of the middle platform segment to obtain two step-shaped segments;
step three, turning over the two step-shaped segments for 180 degrees and horizontally placing the two step-shaped segments on a linear jig frame;
and step four, turning the upper platform segment 180 degrees, normally placing the upper platform segment on the two step-shaped segments, and completing positioning and welding.
Further, the upper platform segment, the middle platform segment and the lower platform segment are identical in structure and comprise small platform plate assemblies, rib plates, longitudinal girder components, outer plate longitudinal ribs and outer plates, and the method comprises the following steps when the upper platform segment is built:
and 3, installing a plurality of outer plate longitudinal ribs on one side of the rib plate component, and installing and welding outer plates on the outer sides of the outer plate longitudinal ribs after positioning is completed.
And 4, respectively building a middle platform segment and a lower platform segment according to the methods in the steps 1-3.
Further, the small assembly of the platform plate comprises the platform plate and the platform longitudinal ribs, the platform plate is used as a base surface during construction, the platform plate is horizontally placed on the plane jig frame, and then the platform longitudinal ribs are welded at the upper end of the platform plate.
Furthermore, after the longitudinal girder components are horizontally welded and formed, the whole body is turned over for 90 degrees and is folded on the small assembly of the platform plate on one side of the ribbed slab component.
Furthermore, when the lower platform segment and the middle platform segment are folded, carrying and positioning are firstly carried out, welding is carried out after the positioning is finished, the rib plate part of the middle platform segment and the platform plate of the lower platform segment are firstly welded, and then butt welding is carried out between the outer plate of the middle platform segment and the outer plate of the lower platform segment; when the upper platform segment and the two stepped segments are folded, positioning is firstly carried out, welding is then carried out, welding between the rib plate part of the middle platform segment and the platform plate of the upper platform segment is firstly carried out, and butt welding between the outer plate of the middle platform segment and the outer plate of the upper platform segment is then carried out.
Further, the linear jig includes a straight portion supported at the lower end of the rib plate member and an outer plate portion supported at the lower end of the outer plate.
Furthermore, the plane bed-jig includes the angle steel stand that a plurality of equidistance set up, and the angle steel stand height is the same, and angle steel stand upper end still is equipped with the bed-jig.
Compared with the prior art, the invention has the beneficial effects that: dividing a three-step type subsection to be built into an upper platform section, a middle platform section and a lower platform section, respectively building and forming on a plane jig frame, reversely folding the two sections of the middle platform section and the lower platform section by taking the middle platform section as a base surface, welding to form two step sections, normally placing the two step sections on the linear jig frame by turning over for 180 degrees, normally folding the upper platform section and the two step sections, and integrally welding to obtain the three-step type subsection. The implementation of the invention solves the problems that the three-step ladder type subsection is directly reversely folded and molded on the plane jig frame and the manufacturing height of the jig frame is too high, and the sectional construction is adopted on the construction mode, so that the height of the jig frame is reduced, the construction risk is greatly reduced and the construction efficiency is improved.
Drawings
Fig. 1 is a schematic diagram of the three-level ladder type segmentation of the present invention.
FIG. 2 is a schematic view of the upper platform segment build flow of the present invention.
Fig. 3 is a close up schematic of the upper, middle and lower platform segments of the present invention.
In the figure, 1, the upper platform segment; 2. a middle platform segment; 3. a lower platform segment; 4. a platform plate; 5. a platform longitudinal bone; 6. a rib plate member; 7. a stringer component; 8. an outer plate; 9. an outer plate longitudinal frame; 10. a straight portion; 11. an outer plate portion; 12. and (4) a plane jig frame.
Detailed Description
The technical solution of the present invention is further described below with reference to specific embodiments:
a method of building a three-step ladder section, as shown in fig. 1-3, comprising the steps of:
step one
Dividing a three-step ladder type subsection to be built into an upper platform section 1, a middle platform section 2 and a lower platform section 3 according to the position of a platform plate, as shown in figure 1; the upper platform segment 1, the middle platform segment 2 and the lower platform segment 3 respectively comprise a platform plate 4, a platform longitudinal rib 5, a rib plate component 6, a longitudinal truss component 7, an outer plate 8 and an outer plate longitudinal rib 9, the three segments of the upper platform segment 1, the middle platform segment 2 and the lower platform segment 3 are respectively built, the upper platform segment 1 is taken as an example, and during building:
the flat bed plate 4 is used as a base surface, the flat bed jig is horizontally placed on the flat bed jig 12, the flat bed jig 12 is composed of a plurality of angle steel stand columns, the height of each angle steel stand column is 800mm, the distance between any two angle steel stand columns is 1m, and the bed plate is arranged at the upper end of each stand column.
After the platform plate 4 is laid on the plane jig 12, the platform longitudinal ribs 5 are installed on the platform plate 4, the platform plate 4 and the platform plate longitudinal ribs 5 form a small platform plate assembly, rib plate components 6 are installed in sequence after welding is completed, longitudinal truss components 7 are firstly welded horizontally and formed, then the whole body is turned over for 90 degrees and folded on one side of the rib plate component 6 at the upper end of the small platform plate assembly, finally, a plurality of outer plate longitudinal ribs 9 are installed on one side of the rib plate component 6 in sequence, after the outer plate longitudinal ribs 9 are positioned, outer plates 8 are pasted on the outer sides of the outer plate longitudinal ribs 9, the whole welding is completed and forming is completed, and the upper platform segment 1 is built; the middle deck plate segment 2 and the lower deck plate segment 3 are built on the flat bed frame 12 in the same way.
Step two
The middle platform segment 2 is placed on a plane jig frame 12 by taking a platform plate 4 as a base surface, the lower platform segment 3 and the middle platform segment 2 are folded, welding construction is carried out after positioning is completed, welding between a rib plate part 6 of the middle platform segment 2 and the platform plate 4 of the lower platform segment 3 is carried out firstly during welding, butt welding between an outer plate 8 of the middle platform segment 2 and an outer plate 8 of the lower platform segment 3 is carried out, and two stepped segments are obtained after welding is completed.
Step three
Turn over two notch cuttype sections 180 after, the level is shelved on the line type bed-jig, as shown in fig. 3, the line type bed-jig includes straight part 10 and planking part 11, and straight part 10 is unified to be formed by the high round steel of 300mm, and the round steel supports in the below of every grade of floor part 6, and every grade of floor part 6 below is provided with two round steels, and floor part 6 adopts welded fastening with the round steel. The outer plate part 11 is composed of a round pipe with the same height as the lower platform segment and a round pipe with the same height as the middle platform segment, the round pipes are supported below the outer plate 8 and are respectively arranged at the intersection positions of the outer plates 8 of the middle platform plate segment 2 and the lower platform segment 3, and the two step-shaped segments are welded and fixed with the linear jig frame.
Step four
The upper platform segment 1 is turned over for 180 degrees and normally placed on the two ladder-shaped segments, after positioning is finished, welding is started, the welding sequence is that the rib plate part 6 of the middle platform segment 2 and the platform plate 4 of the upper platform segment 1 are welded firstly, then butt welding between the outer plate 8 of the middle platform segment 2 and the outer plate 8 of the upper platform segment 1 is carried out, and finally three-step ladder-shaped segmentation is finished.
The present invention is further explained and not limited by the embodiments, and those skilled in the art can make various modifications as necessary after reading the present specification, but all the embodiments are protected by the patent law within the scope of the claims.
Claims (7)
1. A three-step ladder type sectional construction method is characterized by comprising the following steps:
dividing a three-step trapezoidal segmented platform plate into an upper platform segment, a middle platform segment and a lower platform segment according to the position of the three-step trapezoidal segmented platform plate, and respectively building the upper platform segment, the middle platform segment and the lower platform segment on a planar jig;
step two, taking a middle platform plate of the middle platform segment as a base surface and placing the middle platform plate on a plane jig frame, and carrying and folding the lower platform segment on the upper end of the middle platform segment to obtain two step-shaped segments;
step three, turning over the two step-shaped segments for 180 degrees and horizontally placing the two step-shaped segments on a linear jig frame;
and step four, turning the upper platform segment 180 degrees, normally placing the upper platform segment on the two step-shaped segments, and completing positioning and welding.
2. The method for constructing a three-step ladder section as claimed in claim 1, wherein the upper platform section, the middle platform section and the lower platform section are identical in structure and comprise small platform plate assemblies, rib plates, stringer members, outer plate stringers and outer plates, and the method for constructing the upper platform section comprises the following steps:
step 1, a small platform plate assembly is used as a base surface on a plane jig frame, and rib plate components are welded on the small platform plate assembly;
step 2, welding and forming the longitudinal girder component, and then folding the longitudinal girder component, the platform plate small assembly and the rib plate component;
step 3, installing a plurality of outer plate longitudinal bones on one side of the rib plate component, and installing and welding outer plates on the outer sides of the outer plate longitudinal bones after positioning is finished;
and 4, respectively building a middle platform segment and a lower platform segment according to the methods in the steps 1-3.
3. The method as claimed in claim 2, wherein the platform board is constructed by using the platform board as a base surface, placing the platform board on the flat jig horizontally, and welding the platform stringers to the upper end of the platform board.
4. The method as claimed in claim 2, wherein the stringer members are welded horizontally and turned over 90 ° to be folded over the small platform plate assembly on one side of the rib plate members.
5. The method as claimed in claim 2, wherein the lower and middle platform segments are assembled by first performing the mounting and positioning, and then performing the welding, and the rib plate of the middle platform segment is welded to the platform plate of the lower platform segment, and then the outer plate of the middle platform segment is butt-welded to the outer plate of the lower platform segment; when the upper platform segment and the two stepped segments are folded, positioning is firstly carried out, welding is then carried out, welding between the rib plate part of the middle platform segment and the platform plate of the upper platform segment is firstly carried out, and butt welding between the outer plate of the middle platform segment and the outer plate of the upper platform segment is then carried out.
6. The method of building a triple step ladder section of claim 2, wherein the linear jig frame includes a straight portion supported at lower ends of the rib plate members and an outer plate portion supported at lower ends of the outer plate members.
7. The method for building a three-step ladder type subsection as claimed in claim 1, 2 or 3, wherein the planar jig frame comprises a plurality of angle steel upright columns arranged at equal intervals, the angle steel upright columns have the same height, and a jig plate is further arranged at the upper ends of the angle steel upright columns.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010691904.9A CN112027020B (en) | 2020-07-17 | 2020-07-17 | Three-step ladder type sectional construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010691904.9A CN112027020B (en) | 2020-07-17 | 2020-07-17 | Three-step ladder type sectional construction method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112027020A true CN112027020A (en) | 2020-12-04 |
| CN112027020B CN112027020B (en) | 2022-12-02 |
Family
ID=73579205
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010691904.9A Active CN112027020B (en) | 2020-07-17 | 2020-07-17 | Three-step ladder type sectional construction method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112027020B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113212691A (en) * | 2021-06-17 | 2021-08-06 | 江南造船(集团)有限责任公司 | Ship curved section construction method |
| CN115370201A (en) * | 2021-05-19 | 2022-11-22 | 南通振华重型装备制造有限公司 | Modular construction process for upper module of converter station |
| CN115610614A (en) * | 2022-10-20 | 2023-01-17 | 沪东中华造船(集团)有限公司 | Step type segmented construction precision control method for container ship |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6012388A (en) * | 1983-06-30 | 1985-01-22 | Ishikawajima Harima Heavy Ind Co Ltd | Building method of bulbous bow in bow part |
| JPH05270480A (en) * | 1992-03-23 | 1993-10-19 | Ishikawajima Harima Heavy Ind Co Ltd | Assembling method double hull construction of ship |
| CN101407248A (en) * | 2008-11-14 | 2009-04-15 | 大连船舶重工集团有限公司 | Integrated building method of shipboard subsection in shipbuilding process |
| CN101596925A (en) * | 2009-07-23 | 2009-12-09 | 上海江南长兴重工有限责任公司 | The prepackage technology of bow lateral thruster on body section |
| KR20120140357A (en) * | 2011-06-21 | 2012-12-31 | 현대중공업 주식회사 | Improved outfitting installation process in passage way |
| KR20130069166A (en) * | 2011-12-16 | 2013-06-26 | 현대중공업 주식회사 | Support for saddle block and ship construction method using the same |
| KR20140072306A (en) * | 2012-11-30 | 2014-06-13 | 현대중공업 주식회사 | A Method for Assembling Blocks |
| CN109895945A (en) * | 2019-04-02 | 2019-06-18 | 上海外高桥造船有限公司 | A kind of pre-assembled method of bulkhead in length and breadth of ore in sand form board block |
| CN110937079A (en) * | 2019-10-24 | 2020-03-31 | 上海江南长兴造船有限责任公司 | Double-layer bottom box position precision control method for large container ship |
-
2020
- 2020-07-17 CN CN202010691904.9A patent/CN112027020B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6012388A (en) * | 1983-06-30 | 1985-01-22 | Ishikawajima Harima Heavy Ind Co Ltd | Building method of bulbous bow in bow part |
| JPH05270480A (en) * | 1992-03-23 | 1993-10-19 | Ishikawajima Harima Heavy Ind Co Ltd | Assembling method double hull construction of ship |
| CN101407248A (en) * | 2008-11-14 | 2009-04-15 | 大连船舶重工集团有限公司 | Integrated building method of shipboard subsection in shipbuilding process |
| CN101596925A (en) * | 2009-07-23 | 2009-12-09 | 上海江南长兴重工有限责任公司 | The prepackage technology of bow lateral thruster on body section |
| KR20120140357A (en) * | 2011-06-21 | 2012-12-31 | 현대중공업 주식회사 | Improved outfitting installation process in passage way |
| KR20130069166A (en) * | 2011-12-16 | 2013-06-26 | 현대중공업 주식회사 | Support for saddle block and ship construction method using the same |
| KR20140072306A (en) * | 2012-11-30 | 2014-06-13 | 현대중공업 주식회사 | A Method for Assembling Blocks |
| CN109895945A (en) * | 2019-04-02 | 2019-06-18 | 上海外高桥造船有限公司 | A kind of pre-assembled method of bulkhead in length and breadth of ore in sand form board block |
| CN110937079A (en) * | 2019-10-24 | 2020-03-31 | 上海江南长兴造船有限责任公司 | Double-layer bottom box position precision control method for large container ship |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115370201A (en) * | 2021-05-19 | 2022-11-22 | 南通振华重型装备制造有限公司 | Modular construction process for upper module of converter station |
| CN113212691A (en) * | 2021-06-17 | 2021-08-06 | 江南造船(集团)有限责任公司 | Ship curved section construction method |
| CN115610614A (en) * | 2022-10-20 | 2023-01-17 | 沪东中华造船(集团)有限公司 | Step type segmented construction precision control method for container ship |
| CN115610614B (en) * | 2022-10-20 | 2024-06-11 | 沪东中华造船(集团)有限公司 | Control method for stepped sectional construction precision of container ship |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112027020B (en) | 2022-12-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112027020B (en) | Three-step ladder type sectional construction method | |
| CN105735129B (en) | Full-welding truss section modularized splicing method | |
| CN108103938B (en) | A kind of double deck module solid trial assembly method of large steel girder | |
| CN109625157B (en) | Method for integrally constructing wing bridge sections of large container ship | |
| WO2019019459A1 (en) | Device for transporting ship superstructure as a whole | |
| CN112550611A (en) | Method for building bilge part of fuel tank of dual-fuel container ship in segmented mode | |
| CN112027022B (en) | Ultra-wide bilge section construction method | |
| CN110588884A (en) | High-precision allowance-free control process for large bow | |
| CN112124526A (en) | Method for manufacturing connecting bridge segment | |
| CN210712558U (en) | Orthotropic steel bridge deck structure with full-belly type inner partition plate | |
| CN112078751B (en) | Construction method for lower pier seat section of FLNG ship | |
| CN109131738B (en) | Method for manufacturing bulbous bow | |
| CN115107952A (en) | Method for building ship sheet block | |
| CN212530010U (en) | Special template jig frame for sectional construction of outer plate of engine room | |
| CN116620506A (en) | Method for constructing segmented positive tire of large linear step of ship | |
| CN210002576U (en) | connection structure of oblique steel skeleton column and oblique steel skeleton beam | |
| CN219821710U (en) | Integral sectional assembly structure of movable ship section | |
| CN220828104U (en) | Frame structure of tower garage | |
| CN219157425U (en) | Steel truss girder cable-stayed bridge deck plate assembly jig frame | |
| CN115610614B (en) | Control method for stepped sectional construction precision of container ship | |
| CN116280081A (en) | Construction method of movable ship section | |
| CN213358352U (en) | Support for bridge construction crossing railway line | |
| CN217869992U (en) | Steel truss girder lower chord member connecting operation platform | |
| CN216379182U (en) | Steel box girder supporting system | |
| CN219175491U (en) | Continuous beam column node reinforcing device |
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 |