Seismic behavior of a RC column subjected to cyclic lateral loading after high temperature
Küçük Resim Yok
Tarih
2026
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
İdris Karagöz
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
Temperature causes many physical and chemical changes and has a negative impact on reinforced concrete (RC) structures. Long-term exposure to high temperatures reduces the strength and durability of RC elements and alters their seismic behavior. This study investigates the post-fire response of an RC column exposed to 600, 800, and 1000 °C following the ISO 834 standard fire curve. After natural cooling, the column behavior under cyclic lateral loading was analyzed. A finite element model was developed in ABAQUS to perform thermal analyses, followed by cyclic structural analyses. The effects of high temperature were evaluated in terms of changes in lateral load-carrying capacity and stiffness under different axial load levels. The results show that increasing temperature leads to a continuous reduction in both lateral load-carrying capacity and stiffness. At 1000 °C, these reductions reach approximately 53% and 85%, respectively. Based on these findings, RC columns exposed to temperatures of 600 °C and above 180 minutes should not be reused without strengthening. This study provides practical support for the post-fire evaluation of reinforced concrete structural elements.
Açıklama
Anahtar Kelimeler
Earthquake Engineering, Deprem Mühendisliği [EN] Civil Construction Engineering, İnşaat Yapım Mühendisliği
Kaynak
Yenilikçi Mühendislik ve Doğa Bilimleri
Journal of Innovative Engineering and Natural Science
Journal of Innovative Engineering and Natural Science
WoS Q Değeri
Scopus Q Değeri
Cilt
6
Sayı
1
