Deriving analytical solutions using symbolic matrix structural analysis for continuous beams

Abstract This study investigates the use of symbolic computation in Matrix Structural Analysis (MatSA) for continuous beams, using the MATLAB Symbolic Math Toolbox. By employing symbolic MatSA, analytical expressions for displacements, support reactions, and internal forces are derived, offering dee...

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Main Authors: Vagelis Plevris, Afaq Ahmad
Format: Article
Language:English
Published: Nature Portfolio 2025-05-01
Series:Scientific Reports
Subjects:
Online Access:https://doi.org/10.1038/s41598-025-98023-x
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author Vagelis Plevris
Afaq Ahmad
author_facet Vagelis Plevris
Afaq Ahmad
author_sort Vagelis Plevris
collection DOAJ
description Abstract This study investigates the use of symbolic computation in Matrix Structural Analysis (MatSA) for continuous beams, using the MATLAB Symbolic Math Toolbox. By employing symbolic MatSA, analytical expressions for displacements, support reactions, and internal forces are derived, offering deeper insights into structural behavior. This approach facilitates efficient and scalable sensitivity analysis, where partial derivatives of outputs concerning input parameters can be directly computed, enhancing design exploration. The development includes an open-source MATLAB program, hosted on GitHub, enabling symbolic analysis of continuous beams subjected to point and uniform loads. This approach is valuable for both engineering practice and pedagogy, enriching the understanding of structural mechanics and aiding in education by illustrating clear parameter relationships. The program supports deriving influence lines and identifying maximum response values.
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spelling doaj-art-e30e630d69044b0ba368540d8dbc44d92025-08-20T02:15:28ZengNature PortfolioScientific Reports2045-23222025-05-0115111610.1038/s41598-025-98023-xDeriving analytical solutions using symbolic matrix structural analysis for continuous beamsVagelis Plevris0Afaq Ahmad1Department of Civil and Environmental Engineering, College of Engineering, Qatar UniversityDepartment of Built Environment, Oslo Metropolitan UniversityAbstract This study investigates the use of symbolic computation in Matrix Structural Analysis (MatSA) for continuous beams, using the MATLAB Symbolic Math Toolbox. By employing symbolic MatSA, analytical expressions for displacements, support reactions, and internal forces are derived, offering deeper insights into structural behavior. This approach facilitates efficient and scalable sensitivity analysis, where partial derivatives of outputs concerning input parameters can be directly computed, enhancing design exploration. The development includes an open-source MATLAB program, hosted on GitHub, enabling symbolic analysis of continuous beams subjected to point and uniform loads. This approach is valuable for both engineering practice and pedagogy, enriching the understanding of structural mechanics and aiding in education by illustrating clear parameter relationships. The program supports deriving influence lines and identifying maximum response values.https://doi.org/10.1038/s41598-025-98023-xMatrix structural analysisSymbolicContinuous beamsStructural analysisSensitivity analysisInfluence lines
spellingShingle Vagelis Plevris
Afaq Ahmad
Deriving analytical solutions using symbolic matrix structural analysis for continuous beams
Scientific Reports
Matrix structural analysis
Symbolic
Continuous beams
Structural analysis
Sensitivity analysis
Influence lines
title Deriving analytical solutions using symbolic matrix structural analysis for continuous beams
title_full Deriving analytical solutions using symbolic matrix structural analysis for continuous beams
title_fullStr Deriving analytical solutions using symbolic matrix structural analysis for continuous beams
title_full_unstemmed Deriving analytical solutions using symbolic matrix structural analysis for continuous beams
title_short Deriving analytical solutions using symbolic matrix structural analysis for continuous beams
title_sort deriving analytical solutions using symbolic matrix structural analysis for continuous beams
topic Matrix structural analysis
Symbolic
Continuous beams
Structural analysis
Sensitivity analysis
Influence lines
url https://doi.org/10.1038/s41598-025-98023-x
work_keys_str_mv AT vagelisplevris derivinganalyticalsolutionsusingsymbolicmatrixstructuralanalysisforcontinuousbeams
AT afaqahmad derivinganalyticalsolutionsusingsymbolicmatrixstructuralanalysisforcontinuousbeams