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Position: Chinese Standard in English/GB 50661-2011
GB 50661-2011   Code for welding of steel structures (English Version)
Standard No.: GB 50661-2011 Status:valid remind me the status change

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Language:English File Format:PDF
Word Count: 33000 words Price(USD):140.0 remind me the price change

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Implemented on:2012-8-1 Delivery: via email in 1 business day
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Standard No.: GB 50661-2011
English Name: Code for welding of steel structures
Chinese Name: 钢结构焊接规范
Professional Classification: GB    National Standard
Issued by: MOHURD
Issued on: 2011-12-05
Implemented on: 2012-8-1
Status: valid
Superseding:自《钢结构通用规范》GB 55006-2021实施之日起,该标准相关强制性条文第4.0.1、5.7.1、6.1.1、8.1.8条同时。
Language: English
File Format: PDF
Word Count: 33000 words
Price(USD): 140.0
Delivery: via email in 1 business day
1.0.1 This code is formulated with view to implementing national technical and economic policies in the steel structure welding, to achieving technical advancement, economic rationality, safety and usability, and to ensuring quality and energy conservation and environmental protection. 1.0.2 This code is applicable to the welding of structures bearing static load or dynamic load and with steel thickness not less than 3mm in industrial and civil steel structure engineering. The applicable welding methods in this code include shielded metal arc welding, gas-shielded arc welding, flux cored wire selfshield arc welding, submerged-arc welding, ESW, EGW, stud welding and their combination. 1.0.3 Steel structure welding must comply with the current relevant provisions of the nation on safety technology and labor protection, etc. 1.0.4 Steel structure welding shall not only comply with this code, but also shall comply with those specified in the in the current relevant standards of the nation. 2 Terms and Symbols 2.1 Terms 2.1.1 Hydrogen relief heat treatment The post-weld heat treatment method in which the welding joints of the structural steel, which is likely to have cold crack, are heated to certain temperature (250℃~350℃) after welding and held for a while so as to accelerate the diffusion of hydrogen in the welding joints and delayed crack due to the accumulation of diffusible hydrogen. 2.1.2 Stress relief heat treatment The post-weld heat treatment method in which the welding joints are heated to the certain temperature (550℃~650℃) below the base metal Ac1 line after welding and held for a while so as to reduce welding residual stress and improve joint structure property. 2.1.3 Weld access hole The weld penetrating hole which is set at the corresponding position at the cross of member welds in order to guarantee continuity of main weld and facilitate to welding operation. 2.1.4 Prequalification of WPS The welding procedures that the provisions in this code may be adopted without passing welding procedure qualification test, under the conditions of meeting some specific welding methods, parameters, steels, joint form and welding consumable combination correspondingly specified in this code. 2.1.5 Temperature of welding circumstance The temperature of the surrounding environment of weldment during welding. 2.1.6 Flux cored wire selfshield arc welding The method that the weld zone is protected by the slag and gas formed by the reaction of welding wire flux core at high temperature, without additionally adding gas or welding flux for protection. 2.1.7 Testing The technical operation composed of testing of one or several properties of a given product, test treatment or services providing according to specified procedures. 2.1.8 Inspection The checking of materials, staff, procedures, process or results and the determination of its compliance to the specific requirement or that to general requirement on the basis of professional judgment.
1 General Provisions 2 Terms and Symbols 2.1 Terms 2.2 Symbols 3 Basic Requirement 4 Materials 5 Design of Welding Connections 5.1 General Requirements 5.2 Form and Size of Weld Groove 5.3 Theoretical Throat of Weld 5.4 Welding Nodal Points of Combined Welding Member 5.5 Technics for Avoiding the Nodal Point of Lamellar Tearing 5.6 Welding Connection Design of Member Production and Field Installation 5.7 Design of Welding Connections Bearing Dynamic Load and Anti-earthquake 6 Welding Procedure Qualification 6.1 General Requirement 6.2 Substitute Principles of Welding Procedure Qualification 6.3 Requalification 6.4 Preparation of Test Pieces and Samples 6.5 Testing 6.6 Prequalification of WPS 7 Welding Procedures 7.1 Preparation of Base Metal 7.2 Requirement of Welding Consumables 7.3 Assemble Requirement of Welding Joint 7.4 Tack Weld 7.5 Welding Environment 7.6 Preheat and Interpass Temperature Control 7.7 Post-weld Hydrogen Relief Heat Treatment 7.8 Post-weld Stress Relief Treatment 7.9 Weld Tab and Backing 7.10 Technic Requirement of Welding Procedure 7.11 Control of Welding Deformation 7.12 Repairs 7.13 Correction 7.14 Back Gouging 7.15 Temporary Welds 7.16 Striking and Extinguish of Arc 7.17 ESW and EGW 8 Inspection 8.1 General Requirement 8.2 Weld Inspection of Structure Bearing Static Load 8.3 Weld Inspection of Structure Requiring Fatigue Assessment 9 Weld Strengthening and Reinforcement Appendix A Form, Size and Marking Method for Welding Joint Groove of Steel Structure Appendix B Format of WPQR Appendix C Testing of ESW Weld of Box Members Explanation of Wording in This Code List of Quoted Standards
Referred in GB 50661-2011:
*GB 50011-2010(2016) Code for Seismic Design of Buildings (2016)
*GB 50046-2008 Code for Anticorrosion Design of Industrial Constructions
*GB/T 50105-2010 Standard for Structural Drawings
*GB 50550-2010 Code for acceptance of constructional guality of strengthening building structures
*GB 226-1991 Etch test for macrostructure and defect of steels
*GB/T 324-2008 Weld Symbolic Representation on Drawings
*GB/T 2650-2008 Impact test methods on welded joints
*GB/T 2651-2008 Tensile test method on welded joints
*GB/T 2653-2008 Bend test methods on welded joints
*GB/T 2654-2008 Hardness test methods on welded joints
*GB/T 3323-2005 Radiographic examination of fusion welded joints in metallic materials
*GB/T 4842-2006 Argon
*GB/T 5117-2012 Covered electrodes for manual metal arc welding of non-alloy and fine grain steels
*GB/T 5118-2012 Covered electrodes for manual metal arc welding of creep-resisting steels
*GB/T 5293-1999 Carbon steel electrodes and fluxs for submerged arc welding
*GB/T 5313-2010 Steel plates with through-thickness characteristics
*GB/T 8110-2008 Welding electrodes and rods for gas shielding arc welding of carbon and low alloy steel
*GB/T 9445-2015 Non-destructive testing―Qualification and certification of NDT personnel
*GB 9448-1999 Safety in welding and cutting
*GB/T 10045-2001 Carbon steel flux cored electrodes for arc welding
*GB/T 10433-2002 Cheese head studs for arc stud welding
*GB 11345-1989
*GB/T 12470-2003 Low-alloy steel electrodes and fluxes for submerged arc welding
*GB/T 14957-1994 Steel wires for melt welding
*GB/T 17493-2008 Low alloy steel flux cored electrodes for arc welding
*JG/T 203-2007 Method for Ultrasonic Testing and Gradeification for Steel Structu
*JB/T 6046-1992 Welding Assembly for Carbon Steel and Low Alloy Steel Post-welding Heat Treatment Method
*JB/T 6061-2007 Non-Destructive Testing—Magnetic Particle Testing of Welds
*JB/T 6062-2007 Non-Destructive Testing—Penetrant Testing of Welds
*JB/T 10045.3-1999 Thermal cutting - Quality and demensional deviation in the gas cutting
*JB/T 10375-2002 Recommended practice for vibration stress relief on welding structure
*HG/T 2537-1993 Carbon Dioxide for Welding Usage
GB 50661-2011 is referred in:
* GB 50755-2012 Code for Construction of Steel Structures
* DL/T 5154-2012 Technical Code for the Design of Tower and Pole Structures of Overhead Transmission Line
* GB 50936-2014
* DL/T 5154-2012 Technical Code for the Design of Tower and Pole Structures of Overhead Transmission Line
* GB 50755-2012 Code for Construction of Steel Structures
* GB/T 50934-2013 Technical Code for Seepage Prevention in Petrochemical Engineering
* GB/T 50934-2013 Technical Code for Seepage Prevention in Petrochemical Engineering
* GB 51022-2015 Technical Code for Steel Structure of Light-weight Building with Gabled Frames
*GB 50233-2014 Code for Construction and Acceptance of 110kV~750kV Overhead Transmission Line
*JGJ 138-2016 Code for design of composite structures
*JG/T 490-2016 General Specification of Bracket for Solar Photovoltaic System
*GB 50017-2017 Code for design of steel structures
*GB 50901-2013 Code for Construction of Steel-Concrete Composite Structures
*DBJ/T 15-148-2018 Technical specifications for metal roofing system in areas prone to strong winds
*GB 40160-2021 Safety rules for elevating work platforms
*GB 50205-2020 Standard for acceptance of construction quality of steel structures
*NB/T 47043-2014 Technical specification for manufacture of boiler steel structures
*GB/T 22395-2022 Specification for design of boiler steel structures
Code of China
Standard
GB 50661-2011  Code for welding of steel structures (English Version)
Standard No.GB 50661-2011
Statusvalid
LanguageEnglish
File FormatPDF
Word Count33000 words
Price(USD)140.0
Implemented on2012-8-1
Deliveryvia email in 1 business day
Detail of GB 50661-2011
Standard No.
GB 50661-2011
English Name
Code for welding of steel structures
Chinese Name
钢结构焊接规范
Chinese Classification
Professional Classification
GB
ICS Classification
Issued by
MOHURD
Issued on
2011-12-05
Implemented on
2012-8-1
Status
valid
Superseded by
Superseded on
Abolished on
Superseding
自《钢结构通用规范》GB 55006-2021实施之日起,该标准相关强制性条文第4.0.1、5.7.1、6.1.1、8.1.8条同时。
Language
English
File Format
PDF
Word Count
33000 words
Price(USD)
140.0
Keywords
GB 50661-2011, GB/T 50661-2011, GBT 50661-2011, GB50661-2011, GB 50661, GB50661, GB/T50661-2011, GB/T 50661, GB/T50661, GBT50661-2011, GBT 50661, GBT50661
Introduction of GB 50661-2011
1.0.1 This code is formulated with view to implementing national technical and economic policies in the steel structure welding, to achieving technical advancement, economic rationality, safety and usability, and to ensuring quality and energy conservation and environmental protection. 1.0.2 This code is applicable to the welding of structures bearing static load or dynamic load and with steel thickness not less than 3mm in industrial and civil steel structure engineering. The applicable welding methods in this code include shielded metal arc welding, gas-shielded arc welding, flux cored wire selfshield arc welding, submerged-arc welding, ESW, EGW, stud welding and their combination. 1.0.3 Steel structure welding must comply with the current relevant provisions of the nation on safety technology and labor protection, etc. 1.0.4 Steel structure welding shall not only comply with this code, but also shall comply with those specified in the in the current relevant standards of the nation. 2 Terms and Symbols 2.1 Terms 2.1.1 Hydrogen relief heat treatment The post-weld heat treatment method in which the welding joints of the structural steel, which is likely to have cold crack, are heated to certain temperature (250℃~350℃) after welding and held for a while so as to accelerate the diffusion of hydrogen in the welding joints and delayed crack due to the accumulation of diffusible hydrogen. 2.1.2 Stress relief heat treatment The post-weld heat treatment method in which the welding joints are heated to the certain temperature (550℃~650℃) below the base metal Ac1 line after welding and held for a while so as to reduce welding residual stress and improve joint structure property. 2.1.3 Weld access hole The weld penetrating hole which is set at the corresponding position at the cross of member welds in order to guarantee continuity of main weld and facilitate to welding operation. 2.1.4 Prequalification of WPS The welding procedures that the provisions in this code may be adopted without passing welding procedure qualification test, under the conditions of meeting some specific welding methods, parameters, steels, joint form and welding consumable combination correspondingly specified in this code. 2.1.5 Temperature of welding circumstance The temperature of the surrounding environment of weldment during welding. 2.1.6 Flux cored wire selfshield arc welding The method that the weld zone is protected by the slag and gas formed by the reaction of welding wire flux core at high temperature, without additionally adding gas or welding flux for protection. 2.1.7 Testing The technical operation composed of testing of one or several properties of a given product, test treatment or services providing according to specified procedures. 2.1.8 Inspection The checking of materials, staff, procedures, process or results and the determination of its compliance to the specific requirement or that to general requirement on the basis of professional judgment.
Contents of GB 50661-2011
1 General Provisions 2 Terms and Symbols 2.1 Terms 2.2 Symbols 3 Basic Requirement 4 Materials 5 Design of Welding Connections 5.1 General Requirements 5.2 Form and Size of Weld Groove 5.3 Theoretical Throat of Weld 5.4 Welding Nodal Points of Combined Welding Member 5.5 Technics for Avoiding the Nodal Point of Lamellar Tearing 5.6 Welding Connection Design of Member Production and Field Installation 5.7 Design of Welding Connections Bearing Dynamic Load and Anti-earthquake 6 Welding Procedure Qualification 6.1 General Requirement 6.2 Substitute Principles of Welding Procedure Qualification 6.3 Requalification 6.4 Preparation of Test Pieces and Samples 6.5 Testing 6.6 Prequalification of WPS 7 Welding Procedures 7.1 Preparation of Base Metal 7.2 Requirement of Welding Consumables 7.3 Assemble Requirement of Welding Joint 7.4 Tack Weld 7.5 Welding Environment 7.6 Preheat and Interpass Temperature Control 7.7 Post-weld Hydrogen Relief Heat Treatment 7.8 Post-weld Stress Relief Treatment 7.9 Weld Tab and Backing 7.10 Technic Requirement of Welding Procedure 7.11 Control of Welding Deformation 7.12 Repairs 7.13 Correction 7.14 Back Gouging 7.15 Temporary Welds 7.16 Striking and Extinguish of Arc 7.17 ESW and EGW 8 Inspection 8.1 General Requirement 8.2 Weld Inspection of Structure Bearing Static Load 8.3 Weld Inspection of Structure Requiring Fatigue Assessment 9 Weld Strengthening and Reinforcement Appendix A Form, Size and Marking Method for Welding Joint Groove of Steel Structure Appendix B Format of WPQR Appendix C Testing of ESW Weld of Box Members Explanation of Wording in This Code List of Quoted Standards
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Keywords:
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