Fire Resistance Analysis of High Strength Q460 Steel Beams-Part II：Theory Validation
Wang Weiyong,Zhou Yichao,Yu Baolin and Peng chuan
DOI:10.11835/j.issn.1674-4764.2014.03.012
Received June 14, 2013,Revised , Accepted , Available online July 01, 2015
Volume ,2014,Pages 72-79
- Abstract
In the previous companion paper, the fire resistance of high strength steel beams made from Q460 was theoretically studied. The methods to obtain temperature distribution, critical moment, critical temperature and stability coefficient were presented. The temperature distribution and load bearing capacity was analyzed by finite element method, and the validation was evaluated by comparison of results between theoretical computation and finite element analysis as well as experimental results. The comparison was made between Q460 steel beam and mild Q235 steel beam and the difference on fire resistance was obtained. A simplified approach for fire resistance of high strength Q460 steel beams was proposed and an example was given to show the application and reference of the approach.