|
位置：首页 >> 期刊文章
|
|
摘要：
|
|
为了分析在水平荷载下单桩的横向响应问题,利用有限元程序ANSYS对桩土相互作用体系进行了三维有限元数值模拟,分析了土体是否考虑弹塑性、桩土之间是否考虑接触面等因素对单桩横向响应的影响。提出了有效模拟单桩横向响应的有限元模型;进一步提出了确定接触面刚度参数及p-y曲线地基反力系数修正接触面刚度参数的方法。最后进行了实例验证,得出了地基非线性因素的影响是不可忽略的重要结论,并有效提高了有限元模型的计算精度。
|
|
To analyze the transverse response of a single pile under lateral loads, the FEM software, ANSYS, was used to numerically simulate the 3D finite elements of the pile-soil interaction system to analyze the influence of such factors as elasto-plasticity of soil mass and interfaces between piles and soil upon the transverse response of single piles. A finite element model was established to effectively simulate the transverse response of single piles. Methods to determine the parameters for the stiffness of contact surface between piles and soil and to modify the parameters for the stiffness of contact surface between piles and soil by p-y curves were also presented. The analyses were finally verified by examples, which produced an important conclusion that the influence of the non-linear factors of a foundation should not be overlooked and effectively improve the calculated accuracy of finite element models.
|
|
基金项目：
|
|
|
|
作者简介：
|
|
|
|
参考文献：
|
|
[1]谢耀峰.大变位水平承载高桩性状的研究[J].土木工程学报,2000,33(4):74-79.
[2]《桩基工程手册》编写委员会.桩基工程手册[M].北京:中国建筑工业出版社,1995.241-270.
[3]叶万灵,时蓓玲.桩的水平承载力实用非线性计算方法—NL法[J].岩土力学,2000,21(2):98-101.
[4]谢耀峰.港口靠船桩工作性状计算的双参数法[J].海洋工程,2002,20(2):38-42.
[5]陈铖,刘忠.单桩横向非线性静力响应的三维有限元数值模拟[J].湘潭大学自然科学学报,2005,27(1):94-96.
[6]张朝晖,王富耻,王鲁,李树奎.ANSYS工程应用范例入门与提高[M].北京:清华大学出版社,2004,181-199.
[7]郝文化,叶裕明.土木工程应用实例[M].北京:中国水利水电出版社,2005.
[8]郭乙木,陶伟明,庄茁.线性与非线性有限元及其应用[M].北京:机械工业出版社,2004,184-185.
[9]API Recommended Practicefor Planning,Designing and Construc-ting Fixed Offshore Platforms,17th Edition,1987.
|
|
服务与反馈：
|
|
【文章下载】【加入收藏】
|
|
|
|
|