轴向压力作用下空心钢管混凝土桩体空间轴对称问题解析解

轴向压力作用下空心钢管混凝土桩体空间轴对称问题解析解 English Version

详细信息

Baosteel-Tiemeng Structural Engineering Institute, Baoshan Iron & Steel Co., Ltd., Shanghai 201900, China

摘要: 根据钢管和混凝土界面处的变形协调和平衡条件,利用乐甫位移函数得出的厚壁圆筒在两端和内外壁分别受均布压力作用下的空间轴对称问题解,求出轴向压力作用下空心钢管混凝土桩体弹性力学解析解。应用解析解研究了钢管对混凝土的初期约束作用及其塑性屈服条件,并研究了空心和实心混凝土内柱应力分布特点及其塑性发展的趋势。
- 钢管混凝土 /
- 厚壁圆筒 /
- 空间轴对称 /
- 解析解
Abstract: By means of the Love's displacement function derived from the spatial axisymmetric elasticity theory, the problem of thick-walled cylinder subjected to uniform pressures respectively at both ends, inner and outer walls is solved. According to the deformation compatibility and equilibrium conditions on the interface of steel tube and hollow concrete, the elasticity analytical solution of axial loaded hollow concrete filled steel tubular pile member is obtained. Using the analytical solution, the initial constraining pressure on steel and concrete interface is studied, and the stress distribution and plastic development trend of both hollow and solid concrete filled steel tubular piles are analyzed.
- concrete filled steel tube /
- thick-wall cylinder /
- spatial axisymmetry /
- analytical solution

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