顶部铰接底部嵌固桩的稳定性分析

Axial bucking analysis for top pinned and bottom fixed pile

用能量法对顶部铰接、底部嵌固桩在顶部集中荷载和桩侧摩阻力作用下的竖向稳定性问题进行了研究，推导了求解失稳问题的计算公式，用数值方法求得了临界长细比的数值解，通过对数值解的分析，最后得到了简捷易用的桩的失稳临界长细比近似计算公式．

On the basis of energy method,studies on axial stability of top pinned and bottom fixed pile acted by lateral friction and top load is carried out.A series of formulas for solving stability problems are developed and critical slenderness ratio of the pile is solved by numerical method.According to the results of data processing,an approximate formula for calculating critical slenderness ratio of the pile is obtained.