考虑了空心钢管混凝土构件中钢与混凝土的共同工作性能,得到空心构件轴心受压的组合强度公式。同时按照构件中钢管和混凝土分别承担承载力的比例来求得空心钢管混凝土构件的组合可靠度指标,并基于试验,确定了空心钢管混凝土轴心受压构件的组合可靠度指标以及强度折减系数。 Taking into account the common performance of steel and concrete in hollow steel tube concrete members, the formula for combined strength of hollow members under axial compression is obtained. At the same time, the combination reliability index of hollow concrete filled steel tubular members was obtained according to the proportion of the load bearing capacity of steel pipe and concrete respectively. Based on the test, the combination reliability index and the strength reduction coefficient of hollow concrete filled steel tubular members were determined. .