论文部分内容阅读
通过对6根钢管再生混凝土短柱及3根普通钢管混凝土短柱进行轴压试验,研究不同长径比和再生骨料取代率对钢管再生混凝土短柱轴压力学性能的影响。研究结果表明:钢管再生混凝土短柱的变形破坏形式与普通钢管混凝土短柱相似;随再生骨料取代率及长径比的增加,钢管再生混凝土短柱的极限承载力下降。基于试验验证普通钢管混凝土短柱极限承载力计算方法对钢管再生混凝土短柱的适用性,计算值与试验值吻合较好。
The effects of different aspect ratio and recycled aggregate substitution ratio on the axial compressive properties of short recycled concrete-filled steel tubular columns were studied by axial compression tests on six concrete-filled steel tubular short columns and three ordinary CFST columns. The results show that the deformation and failure modes of recycled concrete short columns are similar to ordinary CFST short columns. The ultimate bearing capacity of recycled concrete short columns decreases with the replacement ratio and the aspect ratio of recycled aggregate concrete. The applicability of the method to calculate the ultimate bearing capacity of ordinary CFST short columns on the basis of test results is in good agreement with the experimental values.