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我们在“端部嵌固桩的计算长度”一文中(在本刊74年第5期上登载)用里兹法导得桩顶横向位移受部分约束的基桩的临界荷载和计算长度公式: l=2l/(1+1.304α~5l~5/π~4)~(1/2)(1) 本文按能量原理,用铁摩辛柯法分析桩顶无转角基桩的稳定问题,得到高桩承台和低桩承台型桩的计算长度,所得结果的形式与式(1)相同,只是系数因端部条件不同而有变化。下面讨论两种类型基桩。
We have used Leeds method to derive the critical load and calculated length formula for the pile with partially restrained lateral displacement by the method of Ritz method in “Calculation length of end-embedded pile” l = 2l / (1 + 1.304α ~ 5l ~ 5 / π ~ 4) ~ (1/2) (1) According to the energy principle, the stability problem of pile with no corner pile The calculated length of the pile with high piles and the pile with low piles is the same as equation (1), except that the coefficients vary due to the end conditions. Two types of piles are discussed below.