顾 威, 赵颖华, 贾永新. CFRP钢管混凝土长柱承载力的研究[J]. 工程力学, 2008, 25(7): 147-152.
引用本文: 顾 威, 赵颖华, 贾永新. CFRP钢管混凝土长柱承载力的研究[J]. 工程力学, 2008, 25(7): 147-152.
GU Wei, ZHAO Ying-hua, JIA Yong-xin. RESEARCH ON BEARING CAPACITY OF LONG CONCRETE-FILLED CFRP-STEEL TUBULAR COLUMNS WITH AXIAL COMPRESSION[J]. Engineering Mechanics, 2008, 25(7): 147-152.
Citation: GU Wei, ZHAO Ying-hua, JIA Yong-xin. RESEARCH ON BEARING CAPACITY OF LONG CONCRETE-FILLED CFRP-STEEL TUBULAR COLUMNS WITH AXIAL COMPRESSION[J]. Engineering Mechanics, 2008, 25(7): 147-152.

CFRP钢管混凝土长柱承载力的研究

RESEARCH ON BEARING CAPACITY OF LONG CONCRETE-FILLED CFRP-STEEL TUBULAR COLUMNS WITH AXIAL COMPRESSION

  • 摘要: 通过对CFRP钢管混凝土和钢管混凝土两种构件轴压短柱的研究与比较,分析了CFRP钢管混凝土新型构件与钢管混凝土构件的差别与联系,为CFRP钢管混凝土长柱承载力计算打下基础;并对CFRP钢管混凝土长柱进行了试验研究,探讨CFRP钢管混凝土轴压长柱的受力性能以及CFRP对钢管混凝土轴压长柱承载力的提高效果,分析了长细比对CFRP钢管混凝土轴压柱承载力的影响;基于短柱极限平衡法的承载力设计相关公式从理论上推导出CFRP钢管混凝土轴压长柱稳定承载力公式,并与试验结果相比较,验证了理论公式的正确性。

     

    Abstract: A new concrete-filled CFRP-steel tubular column system is introduced and the relationship and the difference between the short concrete-filled CFRP-Steel column and the short concrete-filled steel column are investigated. The experiment of the long concrete-filled CFRP-steel tube columns and the concrete-filled steel tube columns under axial compression was carried on. On these basis, the mechanical properties of the long concrete-filled CFRP-steel tube columns under concentrically compressed are studied and the increment ratio of the load bearing capacity due to the CFRP was improved; the influence of the slenderness ratio on the load bearing capacity of the specimens is analyzed; the equation is derived for estimating the stability strengths of the system and the calculated results accorded with the experimental results.

     

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