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dc.contributor.authorŞibil, Rahim
dc.contributor.authorOzyurt, Emre
dc.date.accessioned2023-10-13T10:54:49Z
dc.date.available2023-10-13T10:54:49Z
dc.date.issued2023en_US
dc.identifier.citationSibil, R., Ozyurt, E. A Numerical Study to Evaluate the Changes in Dynamic Properties of Various Steel Truss Types Under Fire Conditions. Int J Steel Struct (2023). https://doi.org/10.1007/s13296-023-00782-8en_US
dc.identifier.urihttps://link.springer.com/article/10.1007/s13296-023-00782-8
dc.identifier.urihttps://hdl.handle.net/20.500.12440/6058
dc.description.abstractThis study numerically examines the changes in dynamic properties of fire-damaged steel trusses made of square hollow sections subjected to uniform and non-uniform heating scenarios. After verifying the numerical models at both ambient and elevated temperatures, a vast number of the simulations were analysed using non-linear finite element software to evaluate the effects of fire scenarios, truss types, and fire-damaged levels on the fire dynamic characteristics of square hollow section Warren, Howe, and Pratt trusses. The results indicated that the natural frequency of steel trusses significantly decreased as the fire-damaged level increased. In the case of local fire, the natural frequencies of the trusses began to drop suddenly at temperatures above 550 °C. Whereas the drop in the natural frequency of the uniformly heated trusses started at even much lower temperature levels. Moreover, the decrease in the natural fundamental frequencies of the uniformly heated trusses was lower than the reduction rate of the modulus of elasticity at high temperatures due to the large non-linear deformations. Since the modification of the stiffness of the truss by simply the reduction factor of the elastic modulus of the steel may be inappropriate to calculate the fundamental frequency of the trusses in the local and global fires, a new method was introduced to calculate the fundamental frequency value of the steel trusses in the fire. © 2023, Korean Society of Steel Construction.en_US
dc.publisherSPRINGER LINKen_US
dc.relation.ispartofInternational Journal of Steel Structuresen_US
dc.rightsinfo:eu-repo/semantics/restrictedAccessen_US
dc.subjectDynamic characteristicsen_US
dc.subjectElevated temperatureen_US
dc.subjectFire scenariosen_US
dc.subjectHeat transfer analysisen_US
dc.subjectMode shapeen_US
dc.titleA Numerical Study to Evaluate the Changes in Dynamic Properties of Various Steel Truss Types Under Fire Conditionsen_US
dc.typearticleen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.departmentFakülteler, Mühendislik ve Doğa Bilimleri Fakültesi, İnşaat Mühendisliği Bölümüen_US
dc.authorid0000-0003-3233-9052en_US
dc.authorid0000-0002-1465-596Xen_US
dc.contributor.institutionauthorŞibil, Rahim
dc.contributor.institutionauthorOzyurt, Emre
dc.identifier.doi10.1007/s13296-023-00782-8en_US
dc.authorwosidAAZ-7359-2021en_US
dc.authorwosidHHS-3846-2022en_US
dc.authorscopusid55802619100en_US
dc.authorscopusid56868479000en_US


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