横向受荷桩残余应力及残余变形计算

Computations of Residual Stresses and Deflections for Laterally Loaded Piles

提出一个估算横向受荷桩残余应力和残余变形的方法,用大口径横轴向受荷钢管桩的离心试验结果和现场荷载试验结果进行了实例分析,获得较好效果.此外,还提出按荷载试验和按 p-y 曲线设计横向受荷桩时考虑残余应力的方法。

An analytical method for the evaluation of residual stressess and deflections of laterally loaded piles is developed.Case studies are also carried out,including two piles tested in field and two piles tested in centrifuge.The residual bending moment distributions along shaft and the residual deflections at pile head are predicted with reasonable accuracy.In addition,the design methods of laterally loaded piles including the effects of residual stresses on the basis of load test and p-y curves are proposed.