Discussion on smoke stratification and its correlation with smoke exhaust design in atriums

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.