ICS13.220CCSC80DB42湖北省地方标准DB42/T2013—2023城市道路隧道防排烟设计规程Codeofpracticefordesignofsmokecontrolandexhaustofurbanroad2023-05-16发布2023-09-16实施湖北省住房和城乡建设厅联合发布湖北省市场监督管理局DB42/T2013—2023I目次前言................................................................................III1范围...............................................................................12规范性引用文件.....................................................................13术语和定义.........................................................................14防烟系统设计.......................................................................2一般规定.......................................................................2疏散通道防烟设计...............................................................2避难间防烟设计.................................................................3双层隧道疏散楼梯间防烟设计.....................................................3防烟设施.......................................................................35排烟系统设计.......................................................................4一般规定.......................................................................4自然排烟设计...................................................................4纵向排烟设计...................................................................5重点排烟设计...................................................................6隧道专用电缆廊道灾后通风设计...................................................7排烟设施.......................................................................76防排烟系统控制.....................................................................8一般规定.......................................................................8系统控制要求...................................................................8条文说明.............................................................................10DB42/T2013—2023III前言本文件按照GB/T1.1...
