椭圆形钢管混凝土承载力的试验研究

Experimental study on the bearing capacity of elliptical concrete filled steel tube

根据正交试验理论,设计了不同混凝土强度、钢管强度、钢管厚度、长细比等的钢管混凝土试件,通过轴心受压加载方式测试其承载能力.试验结果表明:受轴压载荷时,钢管混凝土的强度随着混凝土强度、钢材强度、钢管厚度的增加而增加,随着钢管混凝土的高度增加而减小.

To test its bearing capacity,the different concrete strength,steel pipe,steel pipe thickness strength and slenderness ratio of concrete filled steel tube were designed with the theory of the orthogonal.The results showed that： when subject to axial compression load,the CFST strength increased with the concrete strength,steel pipe,steel pipe thickness strength increases,and reduced with the increase of the height of CFST.