Specification for fastener scaffold

People's Republic of China (PRC) industry standard * * Safety technical standard of fastener-type steel pipe scaffold for building construction JJ/T23 1-202 1 caseNo. j1128-202/People's Republic of China (PRC) approved * * * Implementation date of the Ministry of Housing and Urban-Rural Development of the People's Republic of China: 2002/. Kloc-0/0 65448 The announcement of the Ministry of Housing and Urban-Rural Development of the People's Republic of ChinaNo. 1 13 on the release of the industry standard "Safety Technical Standard for Socket Steel Pipe Scaffolding for Building Construction" is now approved as the industry standard, and the number is JJ/T231-2021. The original industry standard JGJ23 1-20 10 "Safety Technical Specification for Socket Steel Pipe Supports for Building" shall be abolished at the same time. This standard is published on the portal website of the Ministry of Housing and Urban-Rural Development (www.mohurd.gov.cn), and published by China Construction Publishing Media Co., Ltd. organized by the Institute of Standards and Quotas of the Ministry of Housing and Urban-Rural Development. The Ministry of Housing and Urban-Rural Development of the People's Republic of China revised this standard on June 30th, 20021year according to the requirements of the Notice of the Ministry of Housing and Urban-Rural Development on Printing and Distributing (Ministry of Housing and Urban-Rural Development [2015] No.274), on the basis of extensive investigation and study, earnestly summing up practical experience, referring to relevant international standards and advanced foreign standards, and extensively soliciting opinions. The main technical content of this standard is: 1. General principles; 2. Terminology and symbols; 3. Basic provisions; 4 load; 5. Structural design; 6. Structural requirements; 7. Installation and removal; 8. Inspection and acceptance; 9. Safety management and maintenance. The main technical contents of this standard revision are as follows: 1. It is clear that the socket fastener type steel pipe scaffold can be divided into support frame and operation frame according to its use. 2. Modify part of the load factor; 3. The structural importance coefficient and the adjustment coefficient of bearing capacity design value are increased; 4. The formula for calculating the length of the vertical pole of the support frame is revised; 5. The structural requirements of diagonal arrangement of support frames are modified. This standard is centralized by the Ministry of Housing and Urban-Rural Development, and Nantong Xinhua Construction Group Co., Ltd. is responsible for the interpretation. If you have any comments or suggestions during the implementation, please send them to Nantong Xinhua Construction Group Co., Ltd. (Address: No.34 Xinjin Road, Tongzhou District, Nantong City, Jiangsu Province, 226300). Editor-in-chief of this standard: Nantong Xinhua Construction Group Co., Ltd. and Jiangsu Su Jie Mould Base Technology Co., Ltd. Participation criteria: Wuxi Sujian Scaffolding Engineering Technology Co., Ltd. of Southeast University, Wuxi Xishan Sanjian Industrial Co., Ltd. Jiangsu Suchuang Aluminum Co., Ltd. China Construction Second Bureau Third Construction Engineering Co., Ltd. Hefei University of Technology Tianjin Dingweigu Formwork Engineering Co., Ltd. China Railway Electrification Bureau Group Beijing Construction Engineering Co., Ltd. China Construction Seventh Bureau Co., Ltd. Co., Ltd. Beijing Yi 'an Mould Base Engineering Technology Co., Ltd. Hunan Wu Heng Formwork Co., Ltd. Shanghai Architectural Engineering Design and Research Institute Co., Ltd. Yunnan Shen Dali Metal Component Co., Ltd. Anhui Zhuoliang New Materials Co., Ltd. Wuxi Ganyou Engineering Consulting and Testing Co., Ltd. China Institute of Building Science Co., Ltd. Luoyang Yuanda Construction Equipment Co., Ltd. Beijing Huasheng Tiancheng Engineering Technology Co., Ltd. China Infrastructure Material Leasing Contract Association Chongqing Construction Engineering First Municipal Project has Limited company and main drafters of this standard: Guo Zhengxing Xinhua Zou Gaochuan Yuan Hongyang sent troops to Liu Qingyang Jia Ning Zhan Biaowen Xue Bing Tang Kunlin Zhang Jingyi Zhao Qingguo Wu Xiaocong Fei Xiayan Shen Changsheng Yao Kai Wu Yajin Li Luoling Ye Tao Bai Yi Zhu Jun Huang Xiaoxia Lu Tianzhu Nan Xuefei Yang Chengli Main reviewers of this standard: Hua Jianmin, Chen Chunlei, Liu Xinyu, Zhuo Xin, Yan Qi and Guan Xiaoli. 1 general rules 1.0. 1 This standard is formulated for the design, installation, dismantling, use and management of socket-type fastener steel pipe scaffolding with advanced technology. 1.0.2 this standard is applicable to the design, installation, demolition, use and management of socket-type fastener steel pipe scaffolding in construction and municipal engineering. 1.0.3 The design, installation, dismantling, use and management of steel pipe scaffold with socket fasteners shall conform to the current relevant national standards in addition to this standard.