SIMULATION METHOD ON BEHAVIOR OF INTEGRAL STEEL FRAMED STRUCTURES UNDER FIRE
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摘要: 建立了整体钢框架结构模型,采用有限元法对整体结构在火灾下的响应进行了数值模拟。对钢构件的应力和变形进行了弹塑性分析,得到了变形及应力随时间变化的云图和内力及挠度随时间变化的曲线。同时将不同约束条件下以及构件采取不同的保护措施时整体结构的响应进行了对比。为基于整体结构的耐火设计提供了有效的数值模拟方法。Abstract: The model of integral steel framed structures is built.Finite element method is used to perform numerical simulation of integral structures under fire.Elasto-plastic analysis of thermal stress and deformation is carried out.As a result,the deformation,stress contours as well as the curves of inner force and deflection varying with time are obtained.The behavior of integral structures under different restrained conditions and protection measures are also compared.An approach to numerical simulation is developed for fire-resistant design based on integral structures.
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Key words:
- fire effect /
- integral structures /
- steel frame /
- numerical simulation /
- restrained conditions /
- protection
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ECCS (European Convention for Constructional Steelwork).European Recommendation for the Fire Safety of Steel Structures,1983 [2] 王勖成,邵敏.有限单元法基本原理和数值方法.北京:清华大学出版社,1999 [3] 李国强,金福安.钢框架结构火灾反应分析.土木工程学报,1994,27(1):49-56 [4] 时旭东.高温下钢筋混凝土杆系结构试验研究和非线性有限元分析:[博士学位论文].北京:清华大学,1992 [5] DG/TJ 08-008-2000建筑钢结构防火技术规程 [6] Liu T C H,Fahad M K,Davies J M.Experimental Investigation of Behavior of Axially Restrained Steel Beams in Fire.Journal of Constructional Steel Research,2002,58:1 211-1 230 [7] Lamout S.The Behavior of Multi-Story Composite Steel Framed Structures in Response to Compartment Fires:[PhD Thesis].Edinburgh:University of Edinburgh,2001 期刊类型引用(4)
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