青岛北站大跨钢结构抗火性能研究

提出了一种适用于大跨度、大空间建筑的火灾安全分析方法——性能化抗火设计方法．首先通过火灾场景分析及模拟计算，确定构件的温度，再利用分析软件计算各不同温度下构件的应力，确定需要防火保护的构件．青岛北站主站房建筑结构体系复杂，超大空间的建筑布局，超出现有建筑防火设计的规定，现行规范方法难以满足抗火安全性与经济性要求．基于性能化方法对青岛北站主站房的抗火安全性进行了评估，并根据评估结果确定防火保护措施．

Performance-based study on the fire-resistance of a large span steel structure in Qingdao North Station

A performance-based fire-resistant design method was proposed for analyzing the fire safety of a large span and large space building.First,the temperatures of components are determined through fire scene analysis and simulation,then the stresses of components at different temperatures are calculated by software,thus which component needs fire protection can be determined.The main station building in Qingdao North Station is a complicated structure system,a large space layout,and beyond the specifications of fire safety design codes.According to the current standards it is difficult to satisfy the safety and economic requirements.The performance-based method was used to evaluate the fire safety of the main station building in Qingdao North Station,and some fire protection measures were given on the basis of the evaluation results.