摘要
为在耐火设计中合理确定钢筋混凝土结构构件的耐火极限,基于构件在火灾条件下极限承载力相等原则,通过数值计算,分析评估了影响当量耐火当量时间的8种因素,选取火灾荷载和通风系数为参数建立钢筋混凝土柱类构件当量耐火时间公式。以当量耐火时间作为构件所需耐火极限,可提高耐火设计的可靠性和经济性。
By the principle of that any two same members exposed to natural or standard fire have equal bearing capacity, this paper analyzes the equivalent fire-resistance time affected by single factors （including 8 independent factors） or the integrative factor. The fire load and opening factor are used as parameters, whereby the equivalent fire-resistance time regression formula is developed and analyzed. By taking the equivalent fire-resistance time as the required time in actual fire, the structural security will increase and the capital input will decrease.
出处
《火灾科学》
CAS
CSCD
2008年第2期83-87,共5页
Fire Safety Science
基金
国家科技支撑计划项目资助(课题编号:2006BAK06B05-1)
关键词
钢筋混凝土柱
当量耐火时间
火灾荷载
通风系数
Reinforced concrete column
Equivalent fire-resistance time
Fire load
Opening factor
