Abstract This paper presents a finite beam element method (FBEM) for analyzing the behavior of a two-pile foundation under eccentric and inclined loads located at sloping ground. A simplified physical model for the two-pile foundation is presented by dint of the strain wedge technique and FBEM. The emphasis is on establishing an element stiffness matrix, taking the P-Δ effect, the strengthening effect on the pile stiffness and the Pasternak’s soil resistance into consideration. The global stiffness matrix can thus be assembled by these element stiffness matrixes, and the node force and deflection were identified by FBEM. The results are compared with field observations and exhibit satisfactory accuracy.

中文翻译：

---

基于有限梁单元法的坡地两桩基础模型

摘要 本文提出了一种有限梁单元法（FBEM），用于分析位于倾斜地面的偏心和倾斜荷载作用下的两桩基础的行为。利用应变楔技术和FBEM，给出了两桩基础的简化物理模型。重点是建立单元刚度矩阵，考虑P-Δ效应、桩刚度的加强效应和Pasternak的土壤阻力。整体刚度矩阵因此可以由这些单元刚度矩阵组装，节点力和挠度由 FBEM 识别。结果与实地观察进行了比较，并表现出令人满意的准确性。