在某民用建筑平时地下室防烟排烟系统设计中:(1)两层地下室采用了共用窗井开窗自然排烟,从图面上看似满足规范要求,而在实际情况下是达不到能够安全疏散的理想效果。(2)地下部分的防烟楼梯间及其前室、合用前室利用窗井自然排烟防烟,无规范可依。(3)自然排烟受风向、热压、密闭性影响较大,必须有较好的气流组织才可以实现,对这种生搬硬套规范及不合理做法提出了自己的观点。 In a civil building usually basement smoke and smoke exhaust system design: (1) The two basement with a common window to open the window of natural smoke exhaust, from the surface seemingly to meet regulatory requirements, but in reality is not up to The ideal effect of being able to evacuate safely. (2) The underground part of the smoke stairwell and its antechamber, co-use of the former window window natural smoke and smoke, no norms can be. (3) Natural smoke exhaust is greatly affected by the wind direction, hot pressing and airtightness, and it is necessary to have a better air flow organization before it can be realized. This paper puts forward its own viewpoints on such standardized practices and irrational practices.