DB44/T 2773-2025 建筑施工悬挑式脚手架安全技术标准

ICs 91.220 CCS P 96 0844 广 东省地 方 标准 DB44/T 2773—2025 建筑施工悬挑式脚手架安全技术标准 Technical standard for safety of cantilever scaffolding in construction 2025-11-25发布 2026-02-25实施 广东省市场监督管理局 发布 0844/1 27732025 目次 言 1总则 2术语和符号 2.1术语 2.2符号 3基本规定， 4材料与构配件 5荷载 51荷载分类 5.2荷载标准 5.3荷载组合 设计计算 11 6.1一般规定 11 6.2悬挑支承结构设计计算 12 6.3钢管脚于架设计计算 21 7构造婴求 26 7.1一般规定 26 7.2悬魏支承结构 27 7.3钢管脚于架 33 8搭设、使用与拆除 36 8.1一般规定 36 8.2 搭迎 37 8.3使用 38 84拆除 39 9检查与验收， 40 91构配件检查与验收 40 9.2脚于架检查 9.3脚于架验收 41 10安全管理与维护 43 10.1安全管理 43 10.2维护保养 44 附录A风压高度变化系数 45 附示B悬挑式脚手架荷载计算常用数据 46 附录C悬桃式脚于架常用材料力学特征 47 附录D轴心受压构件的稳定系数 48 附录E悬挑式脚于架构造图 50 附示F悬桃脚手架主要构件计算范例 52 附录G悬挑脚于架检查验收表 58 本标准用词说明 66 引用标准名录 67 0844/T 2773-2025 Contents IGeneral prorisios 2 Ters aad Syabols 2.1Ters 2.2 Syabols 3 Basic Requireeats 4 Materials aad Accessory 7 5 Strectural Actioas 5.I Classification of Aetioas 8.2 Noral Valees of ctioes 8 5.3 Coabination of Actions Design Calcalation 11 6.I General Regalation 11 6.2 Design of Cantilever Spport Structure 12 6.3 Design of Steel Pipe Scaffolding 21 7 Detailing Requireeats 26 7.I General Repalation 26 7.2 Cantilerer Support Structure . 27 7.3 Steel Pipe Scaffolding Structur 33 8 Erecticm, Use and Disasseabl 36 8.I General Regalation 36 8.2 Erectiom 37 8.3 Use 38 8.4 Disasseably 39 9 Check aad Accopt 40 9.I Check aad Accept of Accessory 40 9.2 Check of Steel Pipe Soaffolding 40 9.3 Accept of Steel Pipe Scaffolding 41 1o Safety Mamageaent and Maintenanc 43 10.I Safety Masagcent 43 10.2 Maintemanc 44 Appendix A Beight Variation Coefficient of Wind Pressure 45 ppendix B Comanly Used Data for Laad Calcalation of Cantilever Scaffolds 46 Appendix C Mechanical Properties of Comoaly Used Materials for Cantilerer Scaffolds47 Appendix D Stability Factor of Asially Loaded eabers 48 Arpendix E Acceptance Coestruction Diagram for Cantilever Scaffolds 50 Appendix F Calculatioa Examples for Main Componeats of Cantilever Scaffolds 52 Appendix G Acceptance Cbecklist for Cantilerer Scaffolds 58 Explmaticn of Termisology lsed in This Regalation 66 List Quoted Standards 67