根据改扩建商场工程的火灾发展特性,运用性能化防火设计方法,对建筑物内人员能否安全疏散进行研究,以降低火灾风险,实现既定安全目标。 According to the characteristics of fire development in the reconstruction and expansion project of shopping mall, the research on the safe evacuation of personnel in the building can be carried out by using the performance-based fire prevention design method to reduce the fire risk and achieve the established safety goal.