Effective expressions for the estimation of the first and third natural periods of minarets based on extensive and comprehensive parametric modal analyses

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dc.contributor.authorErkal, Aykut
dc.contributor.authorHilmi, Zahraa Husham Ibrahim
dc.date.accessioned2025-02-06T18:01:21Z
dc.date.available2025-02-06T18:01:21Z
dc.date.issued2025
dc.departmentAltınbaş Üniversitesien_US
dc.description.abstractThis paper investigates the modal behaviour of minarets by conducting parametric modal analyses with a comprehensive set of geometric and material properties and critically proposes effective expressions to estimate the first and third natural periods of minarets. To make this unprecedented attempt, firstly, previously studied 52 minarets were examined to systematically select the geometric and material properties of 189 representative minarets. Subsequently, numerical models of these 189 minarets were created and assigned with the selected values for height, cross-sectional area, moment of inertia, modulus of elasticity, and mass density. Then, modal analysis was applied to each representative minaret to obtain modal characteristics to see the effect of each variable. Next, an iterative optimization algorithm was used to establish four effective expressions for the first and third natural periods, considering the effect of five and three variables. Finally, the performance of the proposed expressions was checked with 35 of the previously studied minarets whose dynamic characteristics are available. The results demonstrated a satisfactory level of accuracy. For example, the expression for the fundamental period with 5 variables presented discrepancies mostly far less than 19 % for 28 minarets of a total of 35 minarets. © 2025 Institution of Structural Engineersen_US
dc.identifier.doi10.1016/j.istruc.2025.108275
dc.identifier.issn2352-0124
dc.identifier.scopus2-s2.0-85215607412
dc.identifier.scopusqualityQ1en_US
dc.identifier.urihttps://doi.org/10.1016/j.istruc.2025.108275
dc.identifier.urihttps://hdl.handle.net/20.500.12939/5341
dc.identifier.volume72en_US
dc.identifier.wosWOS:001410666600001
dc.identifier.wosqualityQ1
dc.indekslendigikaynakScopus
dc.institutionauthorErkal, Aykut
dc.institutionauthorHilmi, Zahraa Husham Ibrahim
dc.language.isoenen_US
dc.publisherElsevier Ltden_US
dc.relation.ispartofStructuresen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.snmzKA_Scopus_20250206
dc.subjectDynamic behaviouren_US
dc.subjectMasonry toweren_US
dc.subjectMinareten_US
dc.subjectNatural perioden_US
dc.subjectNumerical modellingen_US
dc.subjectOptimisation analysisen_US
dc.subjectParametric analysisen_US
dc.titleEffective expressions for the estimation of the first and third natural periods of minarets based on extensive and comprehensive parametric modal analysesen_US
dc.typeArticleen_US

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