钢管高强混凝土轴压力学性能的理论分析与试验研究

THEORETICAL ANALYSES AND EXPERIMENTAL RESEARCHES FOR THE BEHAVIORS OF HIGH STRENGTH CONCRETE FILLED STEEL TUBES SUBJECTED TO AXIAL COMPRESSION

利用数值分析方法对钢管高强混凝土在轴心受压时的荷载－变形关系曲线进行了全过程分析。为了验证理论分析结果，进行了不同套箍系数的轴压标准试件的试验研究，计算曲线和试验曲线吻合。最后，提供了钢管高强混凝土轴压强度承载力的简化计算公式。

Integral method is applied for the analyses of complete curves of load-deformation and behaviors of high strength concrete filled steel tubes (HSCFST) subjected to axial compression Some HSCFST with different confining ratios ξ are tested in order toprove the corrections of the theoretical analysis results, and the theoretical results fit with those of tests satisfactorily Finally, simplified calculating formula of the strength of HSCFST is put forward