ICS 91.220 CCS P 96 44 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 广东省市场监督管理局 发布 2026 - 02 - 25实施 2025 - 11 - 25发布 DB44/T 2773 —2025 I 目 次 前言 ................................ ................................ ........... Ⅲ 1 总则 ................................ ................................ .......... 1 2 术语和符号 ................................ ................................ .... 2 2.1 术语 ................................ ................................ ...... 2 2.2 符号 ................................ ................................ ...... 2 3 基本规定 ................................ ................................ ...... 6 4 材料与构配件 ................................ ................................ .. 7 5荷载 ................................ ................................ ........... 8 5.1 荷载分类 ................................ ................................ .. 8 5.2 荷载标准值 ................................ ................................ 8 5.3 荷载组合 ................................ ................................ .. 9 6 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 钢管脚手架设计计算 ................................ ....................... 21 7 构造要求 ................................ ................................ ..... 26 7.1 一般规定 ................................ ................................ . 26 7.2 悬挑支承结构 ................................ ............................. 27 7.3 钢管脚手架 ................................ ............................... 33 8 搭设、使用与拆除 ................................ ............................. 36 8.1 一般规定 ................................ ................................ . 36 8.2 搭设 ................................ ................................ ..... 37 8.3 使用 ................................ ................................ ..... 38 8.4 拆除 ................................ ................................ ..... 39 9 检查与验收 ................................ ................................ ... 40 9.1 构配件检查与验收 ................................ ......................... 40 9.2 脚手架检查 ................................ ............................... 40 9.3 脚手架验收 ................................ ............................... 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 附录B 悬挑式脚手架荷载计算常用数据 ................................ ............ 46 附录C 悬挑式脚手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 悬挑式脚手架构造图 ................................ ...................... 50 附录F 悬挑脚手架主要构件计算范例 ................................ .............. 52 附录G 悬挑脚手架检查验收表 ................................ .................... 58 本标准用词说明 ................................ ................................ . 66 引用标准名录 ................................ ................................ ... 67 DB44/T 2773 -2025 II Contents 1 General provisions ................................ ................................ 1 2 Terms and Symbols ................................ ................................ . 2 2.1 Terms ................................ ................................ ......... 2 2.2 Symbols ................................ ................................ ....... 2 3 Basic Requirements ................................ ................................ 6 4 Materials