Analytical formulation for the study of the effect of shear deformations on beam-columns and piles: Engesser and Haringx theories

IF 3.3 2区工程技术 Q2 ENGINEERING, GEOLOGICAL Soils and Foundations Pub Date : 2024-03-29 DOI:10.1016/j.sandf.2024.101446

Carlos A. Vega-Posada , David G. Zapata-Medina , Edwin F. Garcia Aristizabal

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Abstract

This paper presents a novel analytical formulation to study the impact of shear deformations on beam-columns and piles by means of the Timoshenko-Engesser’s and Timoshenko-Haringx’s theories. The proposed solution enables the analysis of lateral deformation or buckling, while considering the effect of shear deformations. It offers the flexibility to i) incorporate different boundary conditions at the ends of the element (e.g., semi-rigid connections and lateral transverse springs) and ii) consider an inhomogeneous elastic foundation. When certain variables are disregarded, the proposed GDE can capture particular cases of GDEs found in the literature for beam-columns and piles. Examples are provided to demonstrate the simplicity and practicality of the proposed method, and its accuracy is validated against available analytical or numerical methods. The influence of the shear effects, as computed from Engesser’s and Haringx’s methods, on the lateral and buckling responses of beam-column and pile elements is discussed.

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用于研究剪切变形对梁柱和桩的影响的分析公式：Engesser 和 Haringx 理论

本文提出了一种新的分析方法，通过 Timoshenko-Engesser 和 Timoshenko-Haringx 理论来研究剪切变形对梁柱和桩的影响。所提出的解决方案能够在考虑剪切变形影响的同时，分析横向变形或屈曲。它具有以下灵活性：i) 在元素两端加入不同的边界条件（如半刚性连接和横向弹簧）；ii) 考虑非均质弹性地基。当忽略某些变量时，所提出的 GDE 可以捕捉到文献中关于梁柱和桩的 GDE 的特殊情况。我们提供了一些实例来证明所提方法的简便性和实用性，并根据现有的分析或数值方法验证了其准确性。讨论了根据 Engesser 和 Haringx 方法计算的剪切效应对梁柱和桩元素横向和屈曲响应的影响。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Soils and Foundations 工程技术-地球科学综合

CiteScore

6.40

自引率

8.10%

发文量

审稿时长

5 months

期刊介绍： Soils and Foundations is one of the leading journals in the field of soil mechanics and geotechnical engineering. It is the official journal of the Japanese Geotechnical Society (JGS)., The journal publishes a variety of original research paper, technical reports, technical notes, as well as the state-of-the-art reports upon invitation by the Editor, in the fields of soil and rock mechanics, geotechnical engineering, and environmental geotechnics. Since the publication of Volume 1, No.1 issue in June 1960, Soils and Foundations will celebrate the 60th anniversary in the year of 2020. Soils and Foundations welcomes theoretical as well as practical work associated with the aforementioned field(s). Case studies that describe the original and interdisciplinary work applicable to geotechnical engineering are particularly encouraged. Discussions to each of the published articles are also welcomed in order to provide an avenue in which opinions of peers may be fed back or exchanged. In providing latest expertise on a specific topic, one issue out of six per year on average was allocated to include selected papers from the International Symposia which were held in Japan as well as overseas.