探讨了单层大空间民用建筑设置防排烟设施的必要性 ,认为在此类建筑的防排烟设计中应考虑烟气控制 ,建议采用机械排烟系统 ,并尽量使其简单实用以便与大空间建筑的特点相匹配。 The necessity of installing smoke control facilities in single-storey large-scale civil buildings is discussed. It is considered that flue gas control should be considered in the design of smoke control and exhaust ventilation of such buildings. Mechanical smoke exhaust system is suggested and should be as simple and practical as possible The characteristics of space architecture match.