《Journal of Geotechnical and Geoenvironmental Engineering》杂志刊登“弹塑性介质中刚性桩在水平荷载下的侧向挠度”

作者：Ernesto Motta

刊物：《Journal of Geotechnical and Geoenvironmental Engineering》，2013年3月，139卷第3期，501–506页

关键词：桩；桩身；刚性桩；桩基设计；侧向荷载；侧向挠度；分析

摘要：本文讨论了侧向荷载作用下刚性桩的设计问题。在很多实际情况中，桩的位移是桩基设计的一个限制因素，因此，对于地基设计来说，容许位移分析要比容许应力分析更合适。本文给出了评估侧向荷载作用下刚性桩响应的非线性弹塑性封闭解。所得方程可用于确定给定桩端外部荷载H₀和M₀组合下的侧向位移和荷载分布。该方法可应用于粘性土和非粘性土。该结果以更具一般性的无量纲形式给出。本文还给出了非粘性土中自由刚性桩的Broms解，并与上述结果进行比较。对试验结果的比较表明，所提出的方法对自由刚性桩的非线性荷载-位移响应具有很高的可靠性。

Lateral Deflection of Horizontally Loaded Rigid Piles in Elastoplastic Medium

Authors: Ernesto Motta

Journal: Journal of Geotechnical and Geoenvironmental Engineering, Volume 139, Issue 3 (March 2013), 501–506

Key words: Piles, Shafts, Rigid piles, Pile design, Lateral load, Lateral deflection, Analysis

Abstract: This paper deals with the design of rigid piles under lateral load. In many practical situations pile displacements may be the limiting factor in the design; thus, an allowable displacement analysis instead of an allowable stress analysis may be more appropriate in the foundation design. A nonlinear elastoplastic closed-form solution for the evaluation of the response of rigid piles under lateral load is presented. The derived equations allow determining the lateral displacement and load distribution for a given combination of the applied forces, H₀ and M₀ , at the pile head. The approach can be applied either for cohesive or cohesionless soils. For greater generality, the solution has been given in nondimensional form. A comparison with the Broms solution for a free rigid pile in cohesionless soil is also presented. Comparisons with experimental results show that the proposed approach may fit in a reliable way the nonlinear load-displacement response of a free rigid pile.

原文链接：http://ascelibrary.org/doi/abs/10.1061/%28ASCE%29GT.1943-5606.0000771