张相勇¹，  尧金金²，  牟在根²
    （1 北京市建筑设计研究院，北京100045；2 北京科技大学土木与环境工程学院，北京100083）

[摘要] 青岛北站主站房建筑结构体系复杂，结构选型独特。超大空间的建筑布局，超出了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。首先确定钢结构抗火性能目标，其次对整体结构在可能的最不利火灾场景下的力学性能进行分析，最后根据结构的受火性能是否满足抗火性能目标来评估结构的抗火安全性及需要采取的防火保护措施。该结果可供类似工程的钢结构抗火设计参考。
[关键词] 性能化方法；钢结构抗火；火灾模拟
中图分类号：TU352.5  文献标识码：A  文章编号：1002-848X(2011) S1-0816-05

Performance-based design for the fire-resistance of Qingdao North Station main station building
Zhang Xiangyong¹,  Yao Jinjin²,  Mu zaigen²
(1Beijing Institute of Arclutectural Design,  Beijing 100045,  China; 2 School of Civil and Environmental Engineering, Beijing University of Technology, Beijing 100083, China)

Abstract: Qingdao North Railway Station main station building is a complicated structure system, and is specialized in architectural. Because the ultra-large space in the building is beyond the specifications of the fire safety design codes, it is hard to satisfy the safety and economic requirement according to the national standards. The safety of the steel roof structure of Qingdao railway station main station building was analyzed with the performance-based method. Firstly, the target of fire-resistance of the structure was determined, and then the steel roof structure in the most dangerous potential fire situation was analyzed. At the last, depending on if the target of fire-resistance is met, the fire safety of the steel roof structure was analyzed and the protection on method was determined. The result of the analysis was adopted by the building owner and the fire department, and can be referenced for the fire safety design of similar buildings.
Keywords: the performance-based method; fire-resistance of steel structure; fire simulation