Estimating fundamental frequency of masonry arches under elevated temperature: numerical analysis and validation using ambient vibration tests      
Yazarlar (7)
Ahmet Can Altunışık
Karadeniz Teknik Üniversitesi, Türkiye
Arş. Gör. Muhammed Mustafa ÖZTÜRK Tokat Gaziosmanpaşa Üniversitesi, Türkiye
Ali Fuat Genç
Karadeniz Teknik Üniversitesi, Türkiye
Ali Kaya
Artvin Çoruh Üniversitesi, Türkiye
Yunus Emrahan Akbulut
Karadeniz Teknik Üniversitesi, Türkiye
Fezayil Sunca
Karadeniz Teknik Üniversitesi, Türkiye
Murat Günaydın
Karadeniz Teknik Üniversitesi, Türkiye
Makale Türü Özgün Makale
Makale Alt Türü SSCI, AHCI, SCI, SCI-Exp dergilerinde yayınlanan tam makale
Dergi Adı Archives of Civil and Mechanical Engineering
Dergi ISSN 1644-9665 Wos Dergi Scopus Dergi
Dergi Tarandığı Indeksler SCI-Expanded
Dergi Grubu Q1
Makale Dili İngilizce
Basım Tarihi 01-2025
Cilt No 25
Sayı 1
DOI Numarası 10.1007/s43452-024-01085-3
Makale Linki http://dx.doi.org/10.1007/s43452-024-01085-3
Özet
In this study, the changing of dynamic characteristics of masonry arches at varying geometric parameters and temperature histories was investigated through a combination of experimental and numerical methods. First, the dynamic characteristics of laboratory-built arch models were determined both pre- and post-high-temperature test using ambient vibration testing. Then, the finite element (FE) models of the arches were developed for both, allowing for dynamic characteristics to be assessed numerically. To refine the accuracy of numerical models, FE analyses were adjusted based on experimental data. These updated FE models were used to investigate the dynamic characteristics of arches with different spans, heights, widths, and thicknesses under different temperature history scenarios. Finally, utilizing the data repository obtained, formulation and graphs/charts, providing valuable insights into the dynamic response of masonry arches under fire conditions, were developed and presented for practical application. The experimental study revealed that the natural frequencies of arches decreased by 55% with increasing temperature exposure.
Anahtar Kelimeler
Ambient vibration test | High temperature | Fire | Masonry arch | Dynamic characteristics | Finite element analyses