摘要
介绍了计算圆钢管混凝土短柱轴压承载力的8种国内外规程,依据各规程计算公式,对21根圆钢管混凝土短柱试件的轴压承载力进行理论计算,并将理论计算结果与试验结果进行对比分析。结果表明:虽然各规程在计算公式的表达上各不相同,但所考虑的因素基本一致,其计算结果大多偏于保守。并对基于统一理论的我国规程和基于叠加理论的国外规程的计算值与试验值进行了对比,《钢管混凝土结构技术规程》(DBJ 13-51—2003)偏差程度最小,计算结果相对较为准确。
Eight kinds of domestic and foreign codes of circular concrete filled steel tube short columns for calculatiug axial compression bearing capacity were introduced. According to the calculation formulas of each code,theoretical calculation of axial compression bearing capacity of 21 circular concrete filled steel tube short columns was given,and the theory calculated results were compared with the experimental results. The results show that although there are differences in form among these calculation formulas of the codes,but the factors considered in these codes have little difference and most of the calculated results are conservative. The calculation values of our country codes based on the unified theory and abroad codes based on superposition theory were compared with the experimental values. The deviation degree of Technical specification for concrete-filled steel tubular structures( DBJ 13-51—2003) is the smallest and the calculation result derived by this code is relatively accurate.
出处
《建筑结构》
CSCD
北大核心
2015年第5期59-62 85,85,共5页
Building Structure
基金
国家科技支撑计划课题资助(2011BAJ03B04)
安徽省教育厅高等教育振兴计划课题资助(2013zdjy121)
关键词
圆钢管混凝土
短柱
轴心受压
理论计算
对比分析
circular concrete filled steel tube
short column
axial compression
theoretical calculation
comparative analysis
