巨幕类影厅人员疏散的安全水平分析与优化设计

A Study and Analysis on the Safety Level of Evacuation of IMAX Theatre

巨幕类影厅的设计由于其视听效果需要往往超出规范要求,其消防性能化设计的首要安全目标是人员的安全疏散。基于"消防性能化设计方案的安全水平不低于处方式设计方案"的设计理念,对位于三层以上、面积超过400m2的某巨幕影厅进行了人员疏散的安全水平分析,并对影响人员疏散效率的通道进行了优化设计。研究结果表明,进行性能化设计和处方式设计方案的人员疏散安全水平对比,有助于更全面的评价消防性能化设计方案的安全水平。

IMAX theatre＇s design often exceeds the provision of fire protection designs for its visual effects; the primary concern of its performance- based design is to safely evacuate the personnel. Based on the design philosophy that the safety level of fire performance- based design is not lower than that of the prescription design,the safety-level analysis for an IMAX theater,over 400 m^2 in area and above the third floor in height is conducted. Furthermore,the design of the passage which affects the evacuation efficiency is optimized. The results show that when the evacuation of performance- based design is compared with that of the prescription design,a more comprehensive evaluation of the safety level in performance- based design can be achieved.