目前,我国建筑市场行为不够规范,建筑物质量水平参差不齐,对于防止控制火灾方面,甚至有些因素会助长火灾蔓延。建筑工程中,由于很多管线、管道(如通风空调系统的风管、水管,消防水管,强弱电线槽线管,以及给排水管道等)要穿墙或梁,楼板等,常常会预留孔洞。而在管线管道安装之后,却没有对这些孔洞的剩余空隙进行封闭。这就导致了火灾中烟气的流通,在火灾中,烟气通过未封闭的空隙流通进入其他房间,助长了火灾的蔓延之势。此外,火灾能够造成巨大的经济损失和人员伤亡,还有一个重要原因:房间的防火门质量不合格,其耐火极限达不到设计标准值。以此本文就建筑防排烟中常见问题做一浅析。 At present, China’s construction market behavior is not standardized, the building quality levels uneven, for the prevention of fire control, and even some factors will contribute to the spread of the fire. In a building project, a lot of pipelines, pipes (such as ducts, water pipes, fire water pipes, power line pipes, water supply and drainage pipes of ventilation and air conditioning systems, etc.) are often reserved for walls or beams, slabs, . After the pipeline was installed, there was no closure of the remaining void of these holes. This led to the circulation of flue gas in fires, where flue gas circulated through unclosed voids into other rooms, fueling the spread of the fire. In addition, the fire can cause huge economic losses and casualties, there is another important reason: the quality of fire doors in the room failed, the fire resistance of less than the design standard value. In this paper, we will make a brief analysis of common problems in building smoke control.