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1、 GUIDE FOR SHIPBUILDING AND REPAIR QUALITY STANDARD FOR HULL STRUCTURES DURING CONSTRUCTION MARCH 2007 American Bureau of Shipping Incorporated by Act of Legislature of the State of New York 1862 Copyright 2007 American Bureau of Shipping ABS Plaza 16855 Northchase Drive Houston, TX 77060 USA Copyri
2、ght American Bureau of Shipping Provided by IHS under license with ABS Licensee=Boeing Co/5910770001 Not for Resale, 08/07/2008 20:19:22 MDTNo reproduction or networking permitted without license from IHS -,-,- This Page Intentionally Left Blank Copyright American Bureau of Shipping Provided by IHS
3、under license with ABS Licensee=Boeing Co/5910770001 Not for Resale, 08/07/2008 20:19:22 MDTNo reproduction or networking permitted without license from IHS -,-,- ABS GUIDE FOR SHIPBUILDING AND REPAIR QUALITY STANDARD FOR HULL STRUCTURES DURING CONSTRUCTION . 2007 iii Foreword This Guide contains in
4、formation obtained from IACS Recommendation No. 47 “Shipbuilding and Repair Quality Standard”. In order to be consistent with ABS requirements, some specific standards have been modified from the original. The modified standards are indicated in the “Remarks” column of the tables, along with the Rul
5、e reference. This second edition of the Guide, developed based on IACS Recommendation No. 47 (Rev. 3, Nov. 2006), supersedes the first edition published in July 1998. Copyright American Bureau of Shipping Provided by IHS under license with ABS Licensee=Boeing Co/5910770001 Not for Resale, 08/07/2008
6、 20:19:22 MDTNo reproduction or networking permitted without license from IHS -,-,- This Page Intentionally Left Blank Copyright American Bureau of Shipping Provided by IHS under license with ABS Licensee=Boeing Co/5910770001 Not for Resale, 08/07/2008 20:19:22 MDTNo reproduction or networking permi
7、tted without license from IHS -,-,- ABS GUIDE FOR SHIPBUILDING AND REPAIR QUALITY STANDARD FOR HULL STRUCTURES DURING CONSTRUCTION . 2007 v GUIDE FOR SHIPBUILDING AND REPAIR QUALITY STANDARD FOR HULL STRUCTURES DURING CONSTRUCTION CONTENTS 1 Applicability1 2 Scope 1 3 General Requirements.2 4 Qualif
8、ication of Personnel and Procedures 2 4.1 Qualification of Welders.2 4.2 Qualification of Welding Procedures2 4.3 Qualifications of NDE Operators2 5 Materials2 5.1 Materials for Structural Members.2 5.2 Details, Standards and Tolerance Limits.2 TABLE 1 Flanged Longitudinals and Flanged Brackets4 TAB
9、LE 2 Built-up Sections5 TABLE 3 Corrugated Bulkheads.6 TABLE 4 Pillars, Brackets and Stiffeners7 TABLE 5 Maximum Heating Temperature on Surface for Line Heating.8 TABLE 6 Block Assembly9 TABLE 7 Special Sub-Assembly.10 TABLE 8 Shape.11 TABLE 9 Shape.12 TABLE 10 Fairness of Plating Between Frames.13
10、TABLE 11 Fairness of Plating with Frames.14 TABLE 12 Alignment.15 TABLE 13 Alignment.16 TABLE 14 Alignment.17 TABLE 15 Typical Butt Plate Edge Preparation (Manual Welding).18 TABLE 16 Typical Butt Plate Edge Preparation (Manual Welding).19 Copyright American Bureau of Shipping Provided by IHS under
11、license with ABS Licensee=Boeing Co/5910770001 Not for Resale, 08/07/2008 20:19:22 MDTNo reproduction or networking permitted without license from IHS -,-,- vi ABS GUIDE FOR SHIPBUILDING AND REPAIR QUALITY STANDARD FOR HULL STRUCTURES DURING CONSTRUCTION . 2007 TABLE 17 Typical Fillet Weld Plate Edg
12、e Preparation (Manual Welding).20 TABLE 18 Typical Fillet Weld Plate Edge Preparation (Manual Welding).21 TABLE 19 Typical Butt and Fillet Weld Profile (Manual Welding).22 TABLE 20 Distance Between Welds.23 TABLE 21 Automatic Welding.24 TABLE 22 Typical Misalignment Repair25 TABLE 23 Typical Misalig
13、nment Repair26 TABLE 24 Typical Misalignment Repair27 TABLE 25 Typical Butt Weld Plate Edge Preparation Repair (Manual Welding).28 TABLE 26 Typical Butt Weld Plate Edge Preparation Repair (Manual Welding).29 TABLE 27 Typical Fillet Weld Plate Edge Preparation Repair (Manual Welding).30 TABLE 28 Typi
14、cal Fillet Weld Plate Edge Preparation Repair (Manual Welding).31 TABLE 29 Typical Fillet Weld Plate Edge Preparation Repair (Manual Welding).32 TABLE 30 Typical Fillet and Butt Weld Plate Edge Preparation Repair (Manual Welding).33 TABLE 31 Distance Between Welds Repair .34 TABLE 32 Erroneous Hole
15、Repair 35 TABLE 33 Repair by Insert Plate 36 TABLE 34 Weld Surface Repair37 Copyright American Bureau of Shipping Provided by IHS under license with ABS Licensee=Boeing Co/5910770001 Not for Resale, 08/07/2008 20:19:22 MDTNo reproduction or networking permitted without license from IHS -,-,- ABS GUI
16、DE FOR SHIPBUILDING AND REPAIR QUALITY STANDARD FOR HULL STRUCTURES DURING CONSTRUCTION . 2007 1 1 Applicability This Guide provides guidance on shipbuilding quality standards for the hull structure during construction. Whereas the standard generally applies to: Conventional ship types Hull structur
17、es constructed from normal and higher strength hull structural steel, the applicability of the standard is in each case to be agreed upon by the Bureau The standard generally does not apply to the new construction of: Special types of ships as, e.g., gas tankers Structures fabricated from stainless
18、steel or other, special types or grades of steel Details relevant to structures or fabrication procedures not covered by this standard are to be approved on a case-by-case basis of procedure qualifications and/or recognized national standards. 2 Scope The standard covers typical construction methods
19、 and gives guidance on quality standards for the most important aspects of such construction. Unless explicitly stated elsewhere in the standard, the level of workmanship reflected herein will in principle be acceptable for primary and secondary structure of conventional designs. A more stringent st
20、andard may however be required for critical and highly stressed areas of the hull, and this is to be agreed with the Bureau in each case. It is intended that these standards provide guidance where established shipbuilding or national standards accepted by the Bureau do not exist. For use of this sta
21、ndard, fabrication fit-ups, deflections and similar quality attributes are intended to be uniformly distributed about the nominal values. The shipyard is to take corrective action to improve work processes that produce measurements where a skewed distribution is evident. Relying upon remedial steps
22、that truncate a skewed distribution of the quality attribute is unacceptable. In this standard, both a “Standard” range and a “Limit” range are listed. The “Standard” range represents the target range expected to be met in regular work under normal circumstances. The “Limit” range represents the max
23、imum allowable deviation from the “Standard” range. Work beyond the “Standard” range but within the “Limit” range is acceptable. Copyright American Bureau of Shipping Provided by IHS under license with ABS Licensee=Boeing Co/5910770001 Not for Resale, 08/07/2008 20:19:22 MDTNo reproduction or networ
24、king permitted without license from IHS -,-,- 2 ABS GUIDE FOR SHIPBUILDING AND REPAIR QUALITY STANDARD FOR HULL STRUCTURES DURING CONSTRUCTION . 2007 3 General Requirements In general, the work is to be carried out in accordance with the Rules and to the satisfaction of attending Surveyor. Provision
25、s are to be made for proper accessibility, staging, lighting and ventilation. Welding operations are to be carried out under shelter from rain, snow and wind. Welding of hull structures is to be carried out by qualified welders, according to approved and qualified welding procedures and with welding
26、 consumables approved by the Bureau. Welding operations are to be carried out under proper supervision by the shipbuilder. 4 Qualification of Personnel and Procedures 4.1 Qualification of Welders Welders are to be qualified in accordance with 2-4-3/11 of the ABS Rules for Materials and Welding (Part
27、 2). Subcontractors are to keep records of welders qualification and, when required, furnish valid approval test certificates. Welding operators using fully mechanized or fully automatic processes generally need not pass approval testing provided that the production welds made by the operators are o
28、f the required quality. However, operators are to receive adequate training in setting or programming and operating the equipment. Records of training and production test results shall be maintained on individual operators files and records, and be made available to the Bureau for inspection when re
29、quested. 4.2 Qualification of Welding Procedures Welding procedures are to be qualified in accordance with 2-4-1/1.7 of the ABS Rules for Materials and Welding (Part 2). The welding procedure should be supported by a welding procedure qualification record. The specification is to include the welding
30、 process, types of electrodes, weld shape, edge preparation, welding techniques and positions. 4.3 Qualifications of NDE Operators Personnel performing nondestructive examination for the purpose of assessing quality of welds in connection with new construction covered by this Guide are to be qualifi
31、ed in accordance with the applicable Bureaus requirements or to a recognized national or international qualification scheme. Records of operators and their current certificates are to be kept and made available to the Surveyor for inspection. 5 Materials 5.1 Materials for Structural Members All mate
32、rials, including weld consumables, to be used for the structural members are to be in accordance with Bureau approved construction plans and with the ABS Rules for Materials and Welding (Part 2). 5.2 Details, Standards and Tolerance Limits Details, standards and tolerance limits may be found in the
33、following Tables: Copyright American Bureau of Shipping Provided by IHS under license with ABS Licensee=Boeing Co/5910770001 Not for Resale, 08/07/2008 20:19:22 MDTNo reproduction or networking permitted without license from IHS -,-,- ABS GUIDE FOR SHIPBUILDING AND REPAIR QUALITY STANDARD FOR HULL S
34、TRUCTURES DURING CONSTRUCTION . 2007 3 Detail Table # Fabrication and Fairness Flanged Longitudinals and Flanged Brackets Built-Up Sections Corrugated Bulkheads Pillars, Brackets And Stiffeners Maximum Heating Temperature On Surface For Line Heating Block Assembly Special sub-assembly Shape Fairness
35、 of Plating Between Frames Fairness of Plating with Frames 1 2 3 4 5 6 7 8 and 9 10 11 Alignment Quality Standards of Hull Structural Components During New Construction 12, 13 and 14 The Bureau may require a closer construction tolerance in areas requiring special attention, as follows: - Regions ex
36、posed to high stress concentrations - Fatigue prone area - Detail design block erection joints - Higher tensile steel regions Welding Details Typical Butt Plate Edge Preparation (Manual Welding) Typical Fillet Weld Plate Edge Preparation (Manual Welding) Typical Butt and Fillet Weld Profile (Manual
37、Welding) Distance Between Welds Automatic Welding 15 and 16 17 and 18 19 20 21 Repair Typical Misalignment Repair Typical Butt Weld Plate Edge Preparation Repair (Manual Welding) Typical Fillet Weld Edge Preparation Repair (Manual Welding) Typical Fillet and Butt Weld Profile Repair (Manual Welding)
38、 Distance Between Welds Repair Erroneous Hole Repair Repair By Insert Plate Weld Surface Repair 22 to 24 25 and 26 27 to 29 30 31 32 33 34 Copyright American Bureau of Shipping Provided by IHS under license with ABS Licensee=Boeing Co/5910770001 Not for Resale, 08/07/2008 20:19:22 MDTNo reproduction
39、 or networking permitted without license from IHS -,-,- 4 ABS GUIDE FOR SHIPBUILDING AND REPAIR QUALITY STANDARD FOR HULL STRUCTURES DURING CONSTRUCTION . 2007 TABLE 1 Flanged Longitudinals and Flanged Brackets Detail Standard Limit Remarks Breadth of flange a b Compared to correct size 3 mm 5 mm An
40、gle between flange and web a Compared to template 3 mm 5 mm per 100 mm of a Straightness in plane of flange and web 10 mm 25 mm per 10 m Copyright American Bureau of Shipping Provided by IHS under license with ABS Licensee=Boeing Co/5910770001 Not for Resale, 08/07/2008 20:19:22 MDTNo reproduction o
41、r networking permitted without license from IHS -,-,- ABS GUIDE FOR SHIPBUILDING AND REPAIR QUALITY STANDARD FOR HULL STRUCTURES DURING CONSTRUCTION . 2007 5 TABLE 2 Built-up Sections Detail Standard Limit Remarks Frames and longitudinal a 1.5 mm 3 mm per 100 mm of a Distortion of face plate a d d 3
42、 + a/100 mm d 5 + a/100 mm Distortion of built-up longitudinal, girder, and transverse at upper edge and flange 10 mm 25 mm per 10 m in length Copyright American Bureau of Shipping Provided by IHS under license with ABS Licensee=Boeing Co/5910770001 Not for Resale, 08/07/2008 20:19:22 MDTNo reproduc
43、tion or networking permitted without license from IHS -,-,- 6 ABS GUIDE FOR SHIPBUILDING AND REPAIR QUALITY STANDARD FOR HULL STRUCTURES DURING CONSTRUCTION . 2007 TABLE 3 Corrugated Bulkheads Detail Standard Limit Remarks Mechanical bending t R R 3t mm 2t Material to be suitable for cold flanging (
44、forming) and welding in way of radius Depth of corrugation 3 mm 6 mm Breadth of corrugation 3 mm 6 mm Pitch and depth of swedged corrugated bulkhead compared with correct value h PP h: 2.5 mm Where it is not aligned with other bulkheads P: 6 mm Where it is aligned with other bulkheads P: 2 mm h: 5 m
45、m Where it is not aligned with other bulkheads P: 9 mm Where it is aligned with other bulkheads P: 3 mm Copyright American Bureau of Shipping Provided by IHS under license with ABS Licensee=Boeing Co/5910770001 Not for Resale, 08/07/2008 20:19:22 MDTNo reproduction or networking permitted without li
46、cense from IHS -,-,- ABS GUIDE FOR SHIPBUILDING AND REPAIR QUALITY STANDARD FOR HULL STRUCTURES DURING CONSTRUCTION . 2007 7 TABLE 4 Pillars, Brackets and Stiffeners Detail Standard Limit Remarks Pillar (between decks) 4 mm 6 mm Cylindrical structure diameter (pillars, masts, posts, etc.) D D/200 mm
47、 max. + 5 mm D/150 mm max. 7.5 mm Tripping bracket and small stiffener, distortion at the part of free edge a t a t/2 mm t Snipe end of secondary face plates and stiffeners See 3-1-2/15.3 of the ABS Rules for Building and Classing Steel Vessels Copyright American Bureau of Shipping Provided by IHS under license with ABS Licensee=Boeing Co/5910770001 Not for Resale, 08/07/2008 20:19:22 MDTNo reproduction or networking permitted without license from IHS -,-,