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JGJ227-2011 PDF EnglishSearch result: JGJ227-2011
JGJ227-2011: PDF in EnglishJGJ 227-2011 JGJ INDUSTRIAL STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA UDC Registration number J 1162-2011 Technical specification for low-rise cold-formed thin-walled steel buildings ISSUED ON. JANUARY 28, 2011 IMPLEMENTED ON. DECEMBER 01, 2011 Issued by. Ministry of Housing and Urban-Rural Development of the People's Republic of China INDUSTRIAL STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA Technical specification for low-rise cold-formed thin-walled steel buildings Approved by. Ministry of Housing and Urban-Rural Development of the People's Republic of China Date of implementation. December 01, 2011 China Building Industry Press 2011 Beijing Announcement of Ministry of Housing and Urban-Rural Development of the People's Republic of China No.903 Announcement on the release of industry standard “Technical specification for low-rise cold-formed thin-walled steel buildings” The “Technical specification for low-rise cold-formed thin-walled steel buildings” is hereby approved as an industry standard, numbered as JGJ 227-2011, AND implemented from December 01, 2011. In this standard, Clause 3.2.1, 4.5.3 and 12.0.2 are mandatory, which must be strictly enforced. This specification is released by China Building Industry Press under the organization of the Standard Quota Institute of the Ministry of Housing and Urban-Rural Development of the People's Republic of China. Ministry of Housing and Urban-Rural Development of the People's Republic of China January 28, 2011 Foreword In accordance with the requirements of the original Ministry of Construction of the Notice on the Printing and Issuing of the Establishment and Revision Plan of 2007 Engineering Building Standards (Batch 1) (JB [2007] No.125), the specification compilation group compiles this specification through extensive investigation and study, carefully summarizing practical experiences, making reference with relevant international standards and advanced foreign standards, AND based on the wide solicitation of opinions. The provisions indicated in boldface in this specification are mandatory, which must be strictly enforced. As for this specification, the Ministry of Housing and Urban-Rural Development of the People's Republic of China is responsible for the management and the interpretation of the mandatory provisions, AND the China Building Standards Design Institute is responsible for the interpretation of specific technical content. Any comments or suggestions during the implementation of this specification please send to China Building Standard Design Institute (No.2 International Building, No.9, Shouti South Road, Haidian District, Beijing 100048, China). The responsible drafting organizations of this specification. China Building Standard Design and Research Institute The participating drafting organizations of this specification. Xi'an University of Architecture and Technology Tongji University Changan University Tsinghua University Ministry of Public Security Tianjin Fire Research Institute BlueScope Steel (China) Shanghai Meijian Steel Structure Co., Ltd North New Housing Co., Ltd Shanghai Green Building System Co., Ltd Owens Corning (China) Investment Co., Ltd Beijing Hostec Steel Structure Co., Ltd China Construction Metal Structure Association Construction Steel Structure Committee Zhejiang Hangxiao Steel Structure Co., Ltd Shanghai Beststeel Structure Building Co., Ltd The main drafter of this specification. Shen Zuyan, He Baokang, Yu Yinquan, Zhou Tianhua, Shen Lin, Li Yuanqi, Guo Yanlin, Wang Yanmin, Liu Chengzong, Su Mingzhou, Qin Yafei, Wang Zongcun, Zhang Yuefeng, Zhang Zhongquan, Jiang Tao, Yang Pengfei, Yang Jiayi, Du Zhaoyu, Li Zhengchun, Yang Qiangyue, Wu Shuchong The main reviewer of the specification. Zhang Yaochun, Zhou Xuhong, Chen Xueting, Xu Houjun, Jiang Xueshi, Guo Yaojie, Gu Qiang, Li Zhiming, Guo Bing Contents 1 General provisions ... 8 2 Terms and symbols ... 8 2.1 Terms ... 8 3 Materials and design indices ... 14 3.1 Material selection ... 14 3.2 Design indices ... 16 4 Basic design requirements ... 17 4.1 Design principles ... 17 4.2 Loads and actions ... 18 4.3 Architectural design and structural layout ... 19 4.4 Allowable value for deformation of structures and structural members ... 22 4.5 General requirements for detailing ... 23 5 Structural analysis ... 26 5.1 Calculation principles of structures ... 26 5.2 Analysis of horizontal load effects ... 27 6 Calculation of members and connections ... 29 6.1 Calculation of members ... 29 6.2 Calculation and detailing of connections ... 36 7 Floor systems ... 37 7.1 General requirements ... 37 7.2 Detailing of floor systems ... 38 8 Wall framing systems ... 45 8.1 General provisions ... 45 8.2 Calculation of wall framings ... 47 8.3 Requirements for detailing ... 51 9 Roof systems ... 56 9.1 General requirements ... 56 9.2 Calculation of roof systems ... 57 9.3 Requirements for detailing of roof joints ... 59 10 Fabrication, coating, erection and acceptance ... 61 10.1 Fabrication ... 61 10.2 Coating works of anticorrosion ... 61 10.3 Erection ... 62 10.4 Final acceptance ... 63 11 Heat preservation and insulation, damp proof ... 65 11.1 General requirements ... 65 11.2 Detailing of heat preservation and insulation ... 66 11.3 Detailing of damp proof ... 66 12 Fireproofing ... 67 13 Testing... 68 13.1 General requirements ... 68 13.2 Performance testing ... 68 Appendix A Test method on design shear strength of screws ... 71 Appendix B Test method on shear strength of wall framings ... 74 Appendix C Calculation on distortional buckling stress of C shape members 77 Explanation of wording in this specification ... 80 List of quoted standards ... 81 [Translator note. Above “Contents” is the original contents from the Chinese version] Technical specification for low-rise cold-formed thin-walled steel buildings 1 General provisions 1.0.1 This specification is established for the purposes of standardizing the design, fabrication, erection and acceptance of low-rise cold-formed thin-walled steel buildings, in order to realize advanced technology, reasonable economics, safety and applicability, and high quality. 1.0.2 This specification is applicable to the design, construction and acceptance of low-rise buildings with cold-formed thin-walled steel as the main bearing steel-members [Translator note. For the purpose of this standard, “steel-” is additionally prefixed in front of “member”, hereafter the same], having not more than 3 floors, AND with the eave height not more than 12m. 1.0.3 This specification is established in accordance with the principles as specified in current national standards “Unified standard for reliability design of building structures” GB 50068, “Load code for the design of building structures” GB 50009, “Code for seismic design buildings” GB 50011, “Code for design of steel structures” GB 50017, “Technical code of cold-formed thin-wall steel structures” GB 50018, and “Code for acceptance of construction quality of steel structures” GB 50205, and so on, AND combining with the low-rise cold-formed thin-walled steel building characteristics. 1.0.4 When designing the low-rise cold-formed thin-walled steel buildings, it shall reasonably select the materials, structural programs and construction measures, AND ensure the structures comply with the strength, stability, and rigidity requirements, as well as the fireproofing and anticorrosion requirements. 1.0.5 The design, construction and acceptance of low-rise cold-formed thin-walled steel buildings shall, in addition to complying with this specification, also comply with the provisions of the relevant current national standards. 2 Terms and symbols 2.1 Terms 2.1.1 Web stiffener [Translator note. This term, in bold, is the original English term in the Chinese version, hereafter the same] It refers to the steel-member connected to the web to prevent buckling of the web. 2.1.2 Blocking It refers to the steel-member that is connected to the structural steel-member to transmit the lateral force out of the structural steel-member plane AND to provide the lateral support to the supported steel-member. 2.1.3 Built-up member It refers to the I-shaped or box-shaped steel-member composed of channel steel-member or curling channel steel-member through connection. 2.1.4 Clip angle It refers to the steel-member usually bent to 90° for the purposes of steel-member connection. 2.1.5 Eave overhang It refers to the horizontal distance from the structural edge of the exterior wall to the structural edge of the roof. 2.1.6 Flat strap It refers to the strap steel-member of certain width which is cut from steel plate, AND used as the brace for supporting purposes OR used to transmit tensile force. 2.1.7 Floor joist It refers to the horizontal steel-member used to support the floor load. 2.1.8 Header It refers to the horizontal steel-member at the opening of the wall or roof which is mainly used to transmit the vertical load to the adjacent vertical bearing steel-members. 2.1.9 Wall stud It refers to the vertical bearing steel-member which makes up the wall unit. 2.1.10 Rafter It refers to the roof steel-member which is arranged in in inclined manner along the roof slope to support the roof load. 2.1.11 Gable overhang It refers to the horizontal distance from the structural edge of the gable to the structural edge of the roof. 2.1.12 Stressed skin action It refers to the capability of the structural sheet system which is reliably connected to the supporting steel-member to resis... .......Source: https://www.ChineseStandard.net/PDF.aspx/JGJ227-2011 |