钢管混凝土柱偏压承载力新公式

为了研究钢管混凝土柱偏压承载力计算公式，在对比钢筋混凝土柱和钢管混凝土柱的基础上，分析了二者的组成特点，并通过类比理论研究相对比较成熟的钢筋混凝土柱的偏压计算公式.采用平截面假定，通过静力平衡条件、几何变形条件和物理条件，根据钢管混凝土柱偏压受力特点，从理论上推导了钢管混凝土柱的大、小偏压承载力计算公式，为钢管混凝土柱偏压承载力计算提供了一种新算法，对钢管混凝土的理论发展及推广应用提供了依据.

New formula of bearing capacity for concrete filled steel tubular column subjected to eccentric compression load

In order to study the calculation formula of bearing capacity for concrete filled steel tubular （CFST） column subjected to eccentric compression load, the component characteristics of both reinforced concrete （RC） column and CFST column were analyzed through comparing RC and CFST columns. The calculation formula of RC column under eccentric compression load, where the theory research was relatively mature, was established. Through adopting the plane section assumption, static equilibrium conditions, geometrical deformation conditions and physical conditions as well as according to the force characteristics of CFST column, the calculation formula of bearing capacity for CFST column under both large and small eccentric compression loads was theoretically derived. The present study provides not only a new algorithm for calculating the eccentric bearing capacity of CFST column, but also the basis for the theory development as well as the popularization and application of CFST column.