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（1 上海交通大学土木工程系，上海 200240； 2 清华大学公共安全中心，北京 100084；

3 中国建筑科学研究院建筑防火研究所，北京 100013）

［摘要］由于采用大空间的建筑布局以及可燃物的特殊性，现有规范方法难以满足河南省新广播电视塔防火设计安全性与经济性要求。基于性能化设计思想对该工程全景画馆钢结构体系的抗火安全性进行了评估。确定结构抗火性能目标，对结构整体在可能最不利火灾场景下的力学性能进行分析，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。在此基础上对整个塔体结构的安全性进行了分析，其成果可为国内外高层钢结构的整体抗火分析提供借鉴和参考。

［关键词］钢结构；性能化抗火设计；火灾-结构耦合；FDS；ANSYS中图分类号：TU973.13文献标识码：A文章编号：1002-848X(2011)06-0055\|05

Performance-based fire resistance design and analysis of high-rise steel towers

Shi Jianyong¹, Sun Xuan^2,3, Liu Wenli³ , Li Yinqing³(1 Department of Civil Engineering, Shanghai Jiaotong University, Shanghai 200240, China;2 Center for Public Safety Research, Tsinghua University, Beijing 100084, China; 3 Institute of Building Fire Research, China Academy of Building Research, Beijing 100013, China)

Abstract:For the large space and the especial combustible, the exited codes can not be used for the fire safety design of a high-rise steel TV transmission tower. A newly integrated method of fire-structural coupling analysis was introduced to analyze the overall fire safety behavior of panoramic painting gallery under fire conditions based on the performance-based fire design ideas. The target of structural fire resistance was determined. The behavior of structural members of panoramic painting gallery was analyzed in the most severe fire scene. The evaluation of structural fire resistance and design of the whole steel tower were performed. The result of the analysis can be referenced for the fire safety design of similar buildings.

Keywords:steel structure; performance-based fire design; fire-structural coupling analysis; FDS; ANSYS

*上海市科委重点科技攻关专项(10231202902)，上海交通大学晨星青年学者奖励计划(A2615B)。

作者简介：史健勇，博士，副教授，Email:shijy@sjtu.edu.cn。

参考文献

［1］  GB50016—2006建筑设计防火规范［S］. 北京：中国计划出版社，2006.

［2］  MEACHAM B J，CUSTER R L P. Performance based fire safety engineering: An introduction of basic concepts［J］. Journal of Fire Protection Engineering，1995，7(2): 35\|53.

［3］  李引擎. 建筑防火性能化设计［M］. 北京：化学工业出版社，2005.

［4］  DD ENV 1993-1-2:2001 Eurocode 3 Design of steel structures-part 1.2: General rules-structural fire design［S］. Commission of the European Communities, Corrected and Reprinted, 2001.

［5］  CECS200:2006 建筑钢结构防火技术规程［S］. 北京：中国计划出版社，2006.