The connotative safe evacuation probability in the prescriptive codes is taken as the acceptance criterion for the alternative measures adopted in the performance based designs.

• 应用安全性等价概念，建立了一种定量评价方法，可以判定人员安全疏散的性能化防火设计采用的替代性技术措施，是否和它所替代的“规格式”规范规定的技术措施的安全水平等价。