建筑钢结构进展2025，Vol.27Issue(3)：46-54,75,10.DOI:10.13969/j.jzgjgjz.20240816001
某机场航站楼钢屋盖抗火设计
Fire Resistance Design of Steel Roof for Terminal Building of an International Airport
摘要
Abstract
In order to ensure that the fire resistance design of large-span steel roof structures meets the requirements of safety,reliability,functional applicability,and economic rationality,a special fire resistance design based on simulation was carried out for the steel roof of T2 terminal building of Hefei Xinqiao Airport.Firstly,component based fire resistance simulations were conducted on typical concrete-filled steel tubular columns and steel columns,analyzing and comparing the temperature field distribution and fire resistance of components without fire protection and under different equivalent thermal resistance fireproof coating protection.The fire resistance performance of roof trusses and steel beams was simulated based on the overall structure,and the fire resistance of roof components considering thermal expansion effect was obtained.Finally,based on the analysis results,a fire-resistant design scheme was proposed for the concrete-filled steel tubular columns and steel columns supporting the steel roof,which were protected by an intumescent fireproof coating to achieve a 3-hour fire resistance,and the steel roof components more than 9 meters away from the floor were not protected by fire protection.关键词
航站楼/钢结构/抗火设计/耐火极限/抗火仿真模拟/膨胀型防火涂料Key words
terminal building/steel structure/fire design/fire resistance/fire simulation/intumescent fireproof coating分类
建筑与水利引用本文复制引用
胡众,周健,丁霖..某机场航站楼钢屋盖抗火设计[J].建筑钢结构进展,2025,27(3):46-54,75,10.基金项目
云南省科技厅重点研发计划(202303AA080012) （202303AA080012）
