人民长江Issue(13)：67-72,6.DOI:10.16232/j.cnki.1001-4179.2015.13.018
考虑桩顶水平反力的水平受荷单桩弹塑性解析解
Elastic-Plastic analytical solution of laterally loaded pile considering anti-force coefficient of top foundation
黄朝煊 1王贺瑶1
作者信息
- 1. 浙江省水利水电勘测设计院，浙江 杭州310002
- 折叠
摘要
Abstract
Based on the elastic-plastic constitutive relation and linear subgrade reaction method, the laterally loaded pile is studied considering the anti-force coefficient of top foundation, and the coupled relationship of critical load ( horizontal force, moment) is given when the top soil of the pile yields. The results show that the top soil begin to yield when the lateral load rea-ches to the critical load, and the plastic depth increases with the load, but the expansion rate of plastic zone gradually decreases with the load's increasing. The coupling matrix equations of the pile internal force in elastic zone and plastic zone are given, and also its iterative solution format is obtained. The formula of conversion depth of plastic zone is given by surface fitting software. Through a numerical example, the presented method is proved reliable and effective.关键词
地基水平反力系数/水平受荷桩/桩顶水平反力参数/塑性区换算深/弹塑性耦合Key words
coefficient of horizontal reaction force of foundation/laterally loaded pile/anti-force coefficient of top founda-tion/conversion depth of plastic zone/elasto-plastic coupling分类
建筑与水利引用本文复制引用
黄朝煊,王贺瑶..考虑桩顶水平反力的水平受荷单桩弹塑性解析解[J].人民长江,2015,(13):67-72,6.
