| 钢管混凝土柱极限承载力的统一算法研究 |
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| 引用本文： | 欧智菁,陈宝春. 钢管混凝土柱极限承载力的统一算法研究[J]. 土木工程学报, 2012, 0(7): 80-85 |
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| 作者姓名： | 欧智菁 陈宝春 |
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| 作者单位： | 福建工程学院;福州大学 |
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| 基金项目： | 福建省科技厅青年人才项目(2008F3005) |
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| 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。
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| 关 键 词： | 钢管混凝土柱 极限承载力 统一算法 规程 |
Study on unified calculation method for the ultimate load carrying capacity of concrete filled steel tubular columns |
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| Ou Zhijing,Chen Baochun. Study on unified calculation method for the ultimate load carrying capacity of concrete filled steel tubular columns[J]. China Civil Engineering Journal, 2012, 0(7): 80-85 |
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| Authors: | Ou Zhijing Chen Baochun |
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| Affiliation: | 1.Fujian University of Technology,Fuzhou 350007,China;2.Fuzhou University,Fuzhou 350002,China) |
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| Abstract: | 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. |
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| Keywords: | concrete filled steel tube column ultimate load carrying capacity unified calculation method criterion |
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