Analysis on Response of a Single Pile Subjected to Tension Load Using a Softening Model and a Hyperbolic Model
Analysis on Response of a Single Pile Subjected to Tension Load Using a Softening Model and a Hyperbolic Model
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DOI：
10.1080/1064119x.2013.828822
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发表时间：
2015-03
影响因子：
2.2
通讯作者：
Qian-qing Zhang;Shu-Cai Li;Qian Zhang;Li-ping Li-Li-ping-Li-47681205;Bo Zhang
中科院分区：
文献类型：
--
作者：
Qian-qing Zhang;Shu-Cai Li;Qian Zhang;Li-ping Li-Li-ping-Li-47681205;Bo Zhang
该方法采用软化模型和双曲线模型来模拟桩土相对位移与桩土界面单位侧摩阻力之间的关系。基于这两种模型，提出了两种简单的分析方法来分析单桩在受拉荷载作用下的荷载-位移响应。此外，一个高效的迭代计算机程序开发使用这两个建议的分析方法。为了证明所提出的分析方法的有效性和准确性，从目前的方法，其他分析方法和有据可查的现场试验桩荷载情况下得出的结果进行了比较。进一步分析了软化模型和双曲线模型相关参数对单桩受拉荷载-位移响应的影响。该方法经济有效，适用于层状土中抗拔桩的软化模型和双曲线模型分析。
A softening model and a hyperbolic model are adopted in the proposed approach to simulate the relationship between pile-soil relative displacement and unit skin friction developed at the pile-soil interface. Based on the proposed two models, two simple analytical approaches are presented for nonlinear analysis of the load-displacement response of a single pile subjected to tension load. Furthermore, a highly effective iterative computer program is developed using the two proposed analytical approaches. To demonstrate the effectiveness and accuracy of the proposed analytical methods, comparisons of the results derived from the present methods, other analytical methods and well-documented field experimental pile loading cases are made. Further study is conducted to analyze the influence of the parameters related to the proposed softening model and hyperbolic model on the load-displacement response of a single pile subjected to tension load. The proposed simple analytical approach is economical and efficient, and suitable for the analysis of a tension pile embedded into layered soils by using a softening model or a hyperbolic model.