研究目的：钢管混凝土作为主要的承重构件在大型建筑以及桥梁结构中广泛应用。对于钢管混凝土承载力，特别对在温度荷载作用下的承载力研究基本是建立在实验的基础上。本文应用弹性力学中的逆解法引入Airy应力函数，以得到圆柱形钢管混凝土柱在轴向压力和温度的共同作用下，钢管与混凝土的应力状态、钢管与混凝土之间的相互作用力以及内部温度的解析表达式。
研究结论：在外部温度和轴向压力荷载的共同作用下，圆形钢管混凝土同一平面内温度、径向和法向应力是半径的曲线函数，而且温度大小仅与钢管和混凝土的热传导系数及截面尺寸有关；径向和法向应力不是单纯的按钢管与混凝土的刚度分配，而是与二者的刚度以及热传导系数相关。
Research purposes: As a main load—bearing component，concrete filled steel column has been widely used in large—sized buildings and bridge structures．The research on the bearing capacity of concrete filled steel column，especially under the temperature load is on the basis of the experiment．In this paper，the Airy stress functions introduced in inverse method of elastic theory are used to obtain the stress status of steel column and concrete， interaction force between steel column and concrete under the joints effects of axial pressure and temperature on the concrete filled steel column and obtain the analytic formulas for the internal temperature．
Research conclusions: Under the joints effects of axial pressure and temperature，the temperature，radial stress and normal stress in the same plain face of concrete filled steel column are of the curve function of the radius，and the polynomials of temperature is only affected by the thermal conductivity coefficient．The radial stress and normal stress are Not simply affected by the stiffness of steel and concrete，but both with the stiffness thermal conductivity coefficient．
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