Analysis of beam-column elements on non-homogeneous soil using the differential transformation method

This paper describes an analytical approach to conduct an analysis of beam-column elements with generalized end-boundary conditions on a homogeneous or non-homogeneous Pasternak elastic foundation. The mathematical formulation utilized herein is that presented by the senior author in a recent work....

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Main Authors: Juan Sebastián Carvajal-Muñoz, Carlos Alberto Vega-Posada, Julio César Saldarriaga-Molina
Format: Article
Language:English
Published: Universidad de Antioquia 2021-02-01
Series:Revista Facultad de Ingeniería Universidad de Antioquia
Subjects:
Online Access:https://revistas.udea.edu.co/index.php/ingenieria/article/view/343176
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author Juan Sebastián Carvajal-Muñoz
Carlos Alberto Vega-Posada
Julio César Saldarriaga-Molina
author_facet Juan Sebastián Carvajal-Muñoz
Carlos Alberto Vega-Posada
Julio César Saldarriaga-Molina
author_sort Juan Sebastián Carvajal-Muñoz
collection DOAJ
description This paper describes an analytical approach to conduct an analysis of beam-column elements with generalized end-boundary conditions on a homogeneous or non-homogeneous Pasternak elastic foundation. The mathematical formulation utilized herein is that presented by the senior author in a recent work. The differential equation (DE) governing the behavior of the beam-column element is solved using the differential transformation method (DTM). The DTM offers practical advantages over other conventional approaches when solving the proposed structural model. The proposed formulation provides the flexibility to account for i) combined lateral and axial load at the ends of the element, ii) homogeneous or non-homogeneous soil, iii) Pasternak elastic foundation, and iv) an external arbitrary transverse load acting on the element. The effects of various slenderness ratios, pile-soil stiffness ratios, and classical and semirigid boundary conditions can be easily studied with the proposed formulation. Examples are presented to validate the accuracy of the model and its applicability over a wide range of analyses.
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spelling doaj.art-8b1b067948624dfa87b6604a09f291d92023-03-23T12:27:45ZengUniversidad de AntioquiaRevista Facultad de Ingeniería Universidad de Antioquia0120-62302422-28442021-02-0110310.17533/udea.redin.20210218Analysis of beam-column elements on non-homogeneous soil using the differential transformation methodJuan Sebastián Carvajal-Muñoz0Carlos Alberto Vega-Posada1Julio César Saldarriaga-Molina2University of AntioquiaUniversity of AntioquiaUniversity of Antioquia This paper describes an analytical approach to conduct an analysis of beam-column elements with generalized end-boundary conditions on a homogeneous or non-homogeneous Pasternak elastic foundation. The mathematical formulation utilized herein is that presented by the senior author in a recent work. The differential equation (DE) governing the behavior of the beam-column element is solved using the differential transformation method (DTM). The DTM offers practical advantages over other conventional approaches when solving the proposed structural model. The proposed formulation provides the flexibility to account for i) combined lateral and axial load at the ends of the element, ii) homogeneous or non-homogeneous soil, iii) Pasternak elastic foundation, and iv) an external arbitrary transverse load acting on the element. The effects of various slenderness ratios, pile-soil stiffness ratios, and classical and semirigid boundary conditions can be easily studied with the proposed formulation. Examples are presented to validate the accuracy of the model and its applicability over a wide range of analyses. https://revistas.udea.edu.co/index.php/ingenieria/article/view/343176Beam-column elementmathematical analysisnon-homogeneous soilsoil mechanics
spellingShingle Juan Sebastián Carvajal-Muñoz
Carlos Alberto Vega-Posada
Julio César Saldarriaga-Molina
Analysis of beam-column elements on non-homogeneous soil using the differential transformation method
Revista Facultad de Ingeniería Universidad de Antioquia
Beam-column element
mathematical analysis
non-homogeneous soil
soil mechanics
title Analysis of beam-column elements on non-homogeneous soil using the differential transformation method
title_full Analysis of beam-column elements on non-homogeneous soil using the differential transformation method
title_fullStr Analysis of beam-column elements on non-homogeneous soil using the differential transformation method
title_full_unstemmed Analysis of beam-column elements on non-homogeneous soil using the differential transformation method
title_short Analysis of beam-column elements on non-homogeneous soil using the differential transformation method
title_sort analysis of beam column elements on non homogeneous soil using the differential transformation method
topic Beam-column element
mathematical analysis
non-homogeneous soil
soil mechanics
url https://revistas.udea.edu.co/index.php/ingenieria/article/view/343176
work_keys_str_mv AT juansebastiancarvajalmunoz analysisofbeamcolumnelementsonnonhomogeneoussoilusingthedifferentialtransformationmethod
AT carlosalbertovegaposada analysisofbeamcolumnelementsonnonhomogeneoussoilusingthedifferentialtransformationmethod
AT juliocesarsaldarriagamolina analysisofbeamcolumnelementsonnonhomogeneoussoilusingthedifferentialtransformationmethod