中庭烟气分层及其与排烟设计相关性问题探讨
Discussion on smoke stratification and its correlation with smoke exhaust design in atriums
摘要：
追溯了烟气分层的定义及相关问题的由来，讨论了建筑中庭发生烟气分层的条件和表现形式及其预估方式，分析了分层对排烟系统设计的影响。认为GB 51251—2017《建筑防烟排烟系统技术标准》中有关中庭烟气分层的条文及其说明有不恰当之处。
关键词：中庭,烟气分层,排烟设计,相关性,预估,修改
Abstract：
Traces the definition of smoke stratification and the context of related issues, discusses the conditions and manifestations of smoke stratification in atriums and their prediction methods, and analyses the influence of smoke stratification on the design of smoke exhaust systems. Considers that some provisions and their explanations of atrium smoke stratification in GB 51251-2017 Technical standard for smoke management systems in buildings are inappropriate.
Keywords:atrium, smoke stratification, smoke exhaust design, correlation, prediction, amendment