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本文报导了钢管超高强混凝土长柱和偏压柱的试验研究工作。长柱试验研究结果表明，钢管超高强混凝土长柱的承载能力和极限纵向变形率随长细比Ｌｅ／ Ｄ的增大而下降，在所研究的 Ｌｅ／ Ｄ范围内，所有的钢管超高强混凝土长柱都有一定的延性，但延性随Ｌｅ／Ｄ的增大而降低。普通钢管混凝土长柱的承载能力考虑长细比影响的折减系数计算公式也适用于钢管超高强混凝土长柱。偏压柱试验研究结果表明，在偏心率为０．２２～０．６５范围内，加载后所有偏压柱试件横向无明显的外形变化。在相同的长细比下，随着偏心率的增加，试件的承载能力降低，极限纵向变形率降低，但总体来说，偏压短柱的纵向变形率比轴压短柱的极限应变要大一些。在相同的偏心率下，长细比越大，试件的承载能力和纵向变形率也越低。钢管超高强混凝土耐偏压能力等于或优于普通钢管混凝土偏压柱。经过适当修正的普通钢管混凝土偏心率折减系数可以用于钢管超高强混凝土偏压柱承载能力计算。
This paper reports the experimental research work on long columns and columns of ultra high strength concrete filled steel tubes. The results of the long column test show that the ultimate bearing capacity and the ultimate longitudinal deformation rate of the ultra-high-strength concrete-filled steel tubular columns decrease with the increase of slenderness ratio Le / D. Within the Le / D range studied, Long column has a certain ductility, but ductility decreases with the increase of Le / D. The bearing capacity of ordinary CFST long columns Considering the effect of slenderness ratio, the calculation formula of the reduction factor is also applicable to the long columns of super high strength concrete-filled steel tubular. Bias column test results show that in the range of eccentricity of 0.22 ~ 0.65, there is no obvious lateral shape change of all the specimens after bias loading. Under the same slenderness ratio, with the increase of eccentricity, the bearing capacity of the specimen decreases and the ultimate longitudinal deformation rate decreases. However, in general, the longitudinal deformation rate of the short columns is higher than the ultimate strain of the axial compression short columns Bigger. Under the same eccentricity, the bigger the slenderness ratio is, the lower the carrying capacity and longitudinal deformation rate of the specimen are. Steel pipe ultra-high strength concrete is equal to or better than the bias resistance of ordinary steel-concrete columns. The properly revised ordinary steel tube eccentric eccentricity reduction coefficient can be used to calculate the bearing capacity of ultra high strength concrete filled steel tubular columns.