基于荷载传递法的单桩非线性受力性状分析软件开发及其应用

基于荷载传递法的单桩非线性受力性状分析软件，可灵活选用不同的荷载传递函数如双曲线模型和软化模型等分析单位侧阻与桩土相对位移间的关系及桩端位移和桩端阻力间的关系，并将桩分成若干桩段以考虑地基土的成层性，且在分析单桩的非线性受力性状的过程中可考虑地下水的影响。该软件得出的单桩受力性状与实际情况吻合较好，提出的基于荷载传递法的单桩非线性受力性状的分析软件是合理可行的，在单桩非线性受力性状的分析上具有一定的实用价值。

Development of software for nonlinear analysis of single pile response based on load transfer method and its application

Software for nonlinear analysis of a single pile response based on load transfer method is presented in this paper. Different load transfer functions such as a hyperbolic model and a softening model can be adopted in the present software to capture the relationship between unit skin friction and pile-soil relative displacement and the relationship between unit tip resistance and pile tip displacement. In the present software, the single pile is divided into different segments to consider layers of soil, and the influence of the groundwater level on the single pile response can be taken into account. The single pile response derived from the present software is generally in good agreement with the field-observed behavior. The proposed software is efficient, and suitable for the analysis of nonlinear response of a single pile.