摘要
研究了刚性基础桩模型 ,探讨这类桩基结构物在参数激励下的非线性分岔特性 ;深入研究了非线性基础模型 ,考虑桩土的相互作用问题及土的非线性特性对承受各向循环荷载的桩的影响 ,得到不同参数域上响应曲线拓扑结构分岔图 ;讨论了系统参数对结构稳定性的影响 。
WT5”BZ]Firstly,the model of rigid basic pile is studied in this paper,and the nonlinear bifurcation characteristics of this kind of model with parametric excitation are explored in detail.Secondly,a thorough investigation of the model of nonlinear basic pile is presented.The interaction between the pile and the soil as well as the influence of the nonlinear characteristics of the pile and the soil subjected to circulating loads in different directions is considered.The bifurcation diagrams of the topological structures of the response curves in different parametric regions are obtained.The influence of the parameters on the stability of the structure is further studied and some new results are obtained. [WT5”HZ]
出处
《天津大学学报（自然科学与工程技术版）》
EI
CAS
CSCD
2000年第5期545-548,共4页
Journal of Tianjin University：Science and Technology
关键词
桩基结构
桩土
非线性动力学
nonlinear Mathieu equation
topological structure of bifurcation diagram
P Y curve of pile soil interaction
