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为提高建筑性能化防火设计中人员安全判据设定的合理性,研究各国建筑防火性能化设计规范和指南中关于人员安全判据的规定,包括烟气层高度、热量、能见度和毒性气体体积分数临界判据。结果表明,建筑高度会影响烟气层高度临界判据,设定判据时需特别考虑中庭、仓库等区域;环境湿度会影响人体对烟气对流热的耐受极限,选取判据时需考虑水系统灭火过程造成的环境湿度增大;设定能见度临界判据应考虑建筑空间大小,还应考虑烟气中刺激性气体的影响;设定毒性气体临界判据时,应考虑可接受的人员安全水平。
In order to improve the rationality of setting safety criteria for personnel in building performance-based fire protection design, the regulations on safety performance in building fire performance in various countries and the guidelines on safety standards in the guideline are studied, including flue gas layer height, heat quantity, visibility and toxic gas volume Score Critical Criterion. The results show that the height of building will affect the critical height of flue gas layer. When setting the criteria, special consideration should be given to atriums, warehouses and other areas. The environmental humidity will affect the human body’s tolerance to flue gas convective heat. The humidity of the environment caused by the fire extinguishing process of the water system is increased; the critical criterion of visibility should be set in consideration of the space of the building; the influence of the irritating gas in the flue gas should also be taken into consideration; and when setting the critical criterion of toxic gas, Safety level.