摘要
水平动荷载作用下桩的水平承载力和桩侧土的刚度变化是桩基设计时的重点考虑因素。采用基于移动硬化弹塑性本构模型的水土完全耦合有限元法,建立二维桩土共同作用模型,探讨黏土中刚性短桩在水平动荷载作用下水平力与位移的关系,以及割线刚度的衰减规律。并对比水平循环荷载作用下与静载作用下桩的水平承载力的差异,得到一些对研究和设计都有参考价值的结论。
The horizontal response of a loaded pile under the sea has attracted more and more attention in recent years.The ultimate horizontal capacity and stiffness of the horizontal response are two principal aspects of a pile response to a horizontal load that require assessment by the designer.This paper is based on the cyclic mobility model and soil-water coupled FEM,reports a study of the relationship of the horizontal load and displacement and the regulation of the stiffness degradation of a rigid pile under horizontal dynamic load.It also accounted for the difference of the horizontal ultimate pile capacity between dynamic and static horizontal load and conclusions are made that may assist in future design and investigation of this phenomenon.
出处
《地震工程学报》
CSCD
北大核心
2015年第B12期181-184,共4页
China Earthquake Engineering Journal
关键词
黏土
短桩
水平承载能力
刚度衰减
水土耦合有限元
clay
short pile
horizontal load bearing capacity
stiffness degradation
soil-water coupled FEM
