摘要
介绍国内外各设计规程关于钢管混凝土柱极限承载力的计算方法并进行比较分析。钢管混凝土单肢柱、哑铃形柱、格构柱的受力性能具有共性,即长细比和偏心率对柱面内整体极限承载力的影响基本上是独立的。基于上述规律,在分析评价国内外各规程计算方法的基础上,对钢管混凝土柱极限承载力的统一算法开展研究。分别进行钢管混凝土单肢柱、哑铃形柱、格构柱的算例分析,研究结果表明,计算值与试验值吻合良好。最后提出适合工程应用的钢管混凝土柱极限承载力的统一算法,为钢管混凝土计算理论的进一步完善和规程修订提供参考。
Calculation methods for the ultimate load carrying capacity of CFST （concrete filled steel tube column） columns from foreign and domestic design criteria are introduced. For CFST single tube columns, dumbbell shaped columns and laced columns, the influence of slenderness ratio and eccentricity on the ultimate load carrying capability are all basically independent. Following this rule, a unified calculation method for the load carrying capacity of CFST columns is studied from an analysis of the calculation methods of design criteria. Test verifications of the new calculation method on CFST single tube columns, dumbbell shaped columns and laced columns are conducted, respectively, and the results indicated that the calculated values agree well with the test values. Finally, the unified method for calculating the load carrying capacity of CFST columns is provided.
出处
《土木工程学报》
EI
CSCD
北大核心
2012年第7期80-85,共6页
China Civil Engineering Journal
基金
福建省科技厅青年人才项目(2008F3005)
关键词
钢管混凝土柱
极限承载力
统一算法
规程
concrete filled steel tube column
ultimate load carrying capacity
unified calculation method
criterion
