Title: Comparison and Analysis of Fire Resistance Between Steel Staggeredtruss System and Steel Frame Structure
Abstract: The Steel Staggered-Truss Framing System(SSTFS) is a new type of structural system,which is developed on the basis of the Steel Frame Structure(SFS).Though there are already a large number of examples of engineering applications of SSTFS in the world,in China,its application is still in an initial stage.In order to study its fire resistance performance and to provide a possible theoretical foundation for related codes of fire protection,the structure design strategy and the fire protection strategy of SSTFS and SFS are studied in this paper based on the structure design and traditional fire protection design theories.The amounts of steel and fireproof coatings used are compared and the potential domino collapse effects of two kinds of structures exposed to fire are studied.Results show that with the same ultimate bearing capacity and fire resistance,SSTFS could greatly reduce the amount of steel,as compared to SFS.However,it would need larger amount of fireproof coatings,and the domino collapse is more likely to occur during a fire,which reduces the economic advantages of SSTFS.As the traditional fire protection design can not be directly extended for the fire protection of SSTFS,the corresponding fire protection strategy must be established and a new fire protection design method,suitable for the structure of SSTFS,should be found.
Publication Year: 2010
Publication Date: 2010-01-01
Language: en
Type: article
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