摘要
本文通过12根三面受火的钢筋混凝土轴心受压柱在不同温度（20～950℃）下的试验，分析了其强度和变形规律。结果表明，不均匀受火的钢筋混凝土轴心受压柱的破坏形态和特征与常温下的截然不同，都是小偏心受压破坏，而且其受力性能与预加荷载水平、温度值和荷载温度途径等密切相关。
The behavior of reinforced concrete axial compression columns heated on their three surfaces and at different temperatures (20℃ to 950℃ ) were investigated and introduced in this paper.The regularity of the strength and lateral buckling of the 12 specimens were analyzed- It is shown that the failure modes of the axial compression columns with non-uniform temperature field are quite different from those at room temperature and may be classified as eccentrical compression failure. The ultimate temperature,or strength of the specimens are closely related to the pre-load level and the temperature reached, as well as to the loading and heating paths.
出处
《建筑结构学报》
EI
CAS
CSCD
北大核心
1997年第4期13-22,12,共11页
Journal of Building Structures
基金
国家自然科学基金
高等学校博士学科点专项基金
关键词
高温
钢筋混凝土
轴心受压柱
抗火性
结构受力
high temperature, lateral buckling, behavior of bearing capacity, reinforced concrete axial compression column
