Research Article

Seismic behavior of a RC column subjected to cyclic lateral loading after high temperature

Volume: 6 Number: 1 January 31, 2026

Seismic behavior of a RC column subjected to cyclic lateral loading after high temperature

Abstract

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.

Keywords

References

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Details

Primary Language

English

Subjects

Earthquake Engineering, Civil Construction Engineering

Journal Section

Research Article

Publication Date

January 31, 2026

Submission Date

October 19, 2025

Acceptance Date

January 13, 2026

Published in Issue

Year 2026 Volume: 6 Number: 1

APA
Çolakoğlu, H. E., & Hüsem, M. (2026). Seismic behavior of a RC column subjected to cyclic lateral loading after high temperature. Journal of Innovative Engineering and Natural Science, 6(1), 275-294. https://doi.org/10.61112/jiens.1806895
AMA
1.Çolakoğlu HE, Hüsem M. Seismic behavior of a RC column subjected to cyclic lateral loading after high temperature. JIENS. 2026;6(1):275-294. doi:10.61112/jiens.1806895
Chicago
Çolakoğlu, Halit Erdem, and Metin Hüsem. 2026. “Seismic Behavior of a RC Column Subjected to Cyclic Lateral Loading After High Temperature”. Journal of Innovative Engineering and Natural Science 6 (1): 275-94. https://doi.org/10.61112/jiens.1806895.
EndNote
Çolakoğlu HE, Hüsem M (January 1, 2026) Seismic behavior of a RC column subjected to cyclic lateral loading after high temperature. Journal of Innovative Engineering and Natural Science 6 1 275–294.
IEEE
[1]H. E. Çolakoğlu and M. Hüsem, “Seismic behavior of a RC column subjected to cyclic lateral loading after high temperature”, JIENS, vol. 6, no. 1, pp. 275–294, Jan. 2026, doi: 10.61112/jiens.1806895.
ISNAD
Çolakoğlu, Halit Erdem - Hüsem, Metin. “Seismic Behavior of a RC Column Subjected to Cyclic Lateral Loading After High Temperature”. Journal of Innovative Engineering and Natural Science 6/1 (January 1, 2026): 275-294. https://doi.org/10.61112/jiens.1806895.
JAMA
1.Çolakoğlu HE, Hüsem M. Seismic behavior of a RC column subjected to cyclic lateral loading after high temperature. JIENS. 2026;6:275–294.
MLA
Çolakoğlu, Halit Erdem, and Metin Hüsem. “Seismic Behavior of a RC Column Subjected to Cyclic Lateral Loading After High Temperature”. Journal of Innovative Engineering and Natural Science, vol. 6, no. 1, Jan. 2026, pp. 275-94, doi:10.61112/jiens.1806895.
Vancouver
1.Halit Erdem Çolakoğlu, Metin Hüsem. Seismic behavior of a RC column subjected to cyclic lateral loading after high temperature. JIENS. 2026 Jan. 1;6(1):275-94. doi:10.61112/jiens.1806895


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