任庆新 孙明海 贾连光 刘德清. 圆锥形中空钢管-钢筋混凝土叠合短柱轴压力学性能研究[J]. 工程力学, 2012, 29(增刊Ⅱ): 195-200. DOI: 10.6052/j.issn.1000-4750.2012.05.S057
引用本文: 任庆新 孙明海 贾连光 刘德清. 圆锥形中空钢管-钢筋混凝土叠合短柱轴压力学性能研究[J]. 工程力学, 2012, 29(增刊Ⅱ): 195-200. DOI: 10.6052/j.issn.1000-4750.2012.05.S057
REN Qing-xin. STUDY ON CONICAL HOLLOW STEEL TUBE-REINFORCED CONCRETE LAMINATE STUB COLUMNS SUBJECTED TO AXIAL COMPRESSION[J]. Engineering Mechanics, 2012, 29(增刊Ⅱ): 195-200. DOI: 10.6052/j.issn.1000-4750.2012.05.S057
Citation: REN Qing-xin. STUDY ON CONICAL HOLLOW STEEL TUBE-REINFORCED CONCRETE LAMINATE STUB COLUMNS SUBJECTED TO AXIAL COMPRESSION[J]. Engineering Mechanics, 2012, 29(增刊Ⅱ): 195-200. DOI: 10.6052/j.issn.1000-4750.2012.05.S057

圆锥形中空钢管-钢筋混凝土叠合短柱轴压力学性能研究

STUDY ON CONICAL HOLLOW STEEL TUBE-REINFORCED CONCRETE LAMINATE STUB COLUMNS SUBJECTED TO AXIAL COMPRESSION

  • 摘要: 该文利用有限元软件ABAQUS建立了圆锥形中空钢管-钢筋混凝土叠合短柱轴压力学性能分析的有限元计算模型,并进行了12个圆锥形中空钢管-钢筋混凝土叠合短柱轴压试验。有限元计算与试验所得的荷载-位移全过程曲线及破坏形态吻合较好。在此基础上对内钢管与混凝土之间的相互作用进行了分析,并对锥度、材料强度、空心率、配筋率等参数对轴压时叠合短柱初始刚度、极限承载力及荷载-位移曲线的影响进行了比较。

     

    Abstract: A finite element analysis (FEA) model for conical hollow steel tube-reinforced concrete laminate stub columns subjected to axial compression was developed in the flatform of ABAQUS. The tests of 12 stub columns under axial compression were conducted. The predicted load versus deformation curves and failure modes were in good agreement with the testing results. The FEA model was then used to investigate the mechanisms of such composite columns further. The interactions between the inner steel tube and the reinforced concrete were analyzed. And then, the main parameters influencing the initial stiffness, ultimate strength and load-deformation curves such as taper, strength of the materials, hollow ratio and reinforcement ratio were investigated.

     

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