摘要
国内外关于钢骨混凝土柱的抗火性能试验和理论研究非常少。本文采用有限元方法对钢骨混凝土偏压柱的抗火性能进行研究,首先以相关试验数据对分析理论与计算程序的可靠性进行验证。在此基础上,在标准火灾升温作用下用数值计算方法对钢骨混凝土偏压柱的混凝土强度、钢骨强度、钢骨含钢率、长细比、偏心率、截面尺寸和受火时间等高温极限承载力影响参数进行'计算分析,并分别给出了拟合计算式,可供钢骨混凝土偏压柱抗火设计参考。
There was a litter experimental and theoretical study about the fire-resistance of SRC columns at present time. The FEM is used for analysis of fire-resistance of SRC column in this paper and the analytical program has been verified by experimental results. The influence of parameters on fire-resistance of SRC columns,such as the strength of concrete, the strength of steel, slenderness ratio, eccentricity , steel ratio and the cross section size,have been studied. Formulas for fire-resistant design of SRC columns are proposed.
出处
《建筑钢结构进展》
2006年第2期55-62,共8页
Progress in Steel Building Structures
基金
国家杰出青年科学基金项目(50225825)
关键词
钢骨混凝土偏压柱
标准火灾升温
抗火极限承载力
影响参数分析
eccentric loaded SRC columns
standard fire curve
fire resistant capacity
influence parameters analysis
