Journal of Structural and Construction Engineering

Journal of Structural and Construction Engineering

A parametric study of the cyclic behavior of concrete shear wall after fire.

Document Type : Original Article

Authors
Abbas Rezaeian 1
Farhad Hosseinlou 2
Bijan Bahadori Birgani 3
1 Associate Professor, Faculty of Civil Engineering and Architecture, Shahid Chamran University of Ahvaz, Ahvaz, Iran
2 Assistant Professor, Faculty of Civil Engineering and Architecture, Shahid Chamran University of Ahvaz, Ahvaz, Iran
3 Master's degree in structural engineering, Faculty of Civil Engineering and Architecture, Shahid Chamran University of Ahvaz, Ahvaz, Iran
10.22065/jsce.2024.424140.3260
Abstract
For concrete structures exposed to fire and thermal load, in addition to researching their residual bearing capacity, it is also important to study their seismic performance after fire. Therefore, in the present research, the mechanical and cyclical behavior of concrete shear wall after fire has been studied using finite element method and ABAQUS software. Since, according to studies, the most important factor in the behavior of concrete in fire is the heating time, so this parameter is considered as the main variable of the research. In this parametric study, the variables of shear wall thickness (geometric parameter) and aggregate type (technical parameter) are considered as effective factors in the behavior of concrete in fire. In this regard, 7 models have been investigated. The results of the research showed that increasing the fire duration parameter increases the heat flux and temperature on the surface of the concrete wall and steel rebars. The results of the research show that the maximum von Mises stress of the concrete wall has increased by 22.7% and 44.446%, respectively, by increasing the duration of the fire from 0 to 90 and 150 minutes. Increasing the duration of fire reduces the yield strength and ultimate strength of steel bars by 17% and 15%, respectively. Yield strain, rupture strain and ultimate strain have also increased by 32.5%, 5.05% and 5.4%, respectively.
Keywords
Cyclic behavior
fire
concrete shear wall
thermal flux
parametric study

Subjects

[1] Chi, J.H., Tang, J.R., Go, C.G & Huang, Y.L. (2013). Research on seismic resistance and mechanic behavior of reinforced lightweight aggregate concrete walls after high temperature. Fire and Materials, 38(8), 789-805.
[2] Ma, Q., Guo, R., Zhao, Z & Lin, L. (2015). Mechanical properties of concrete at high temperature. Construction and Building Materials, 93, 371-383.
[3] Yahyai, M., Rezaeian, A., Safaeian, M. (2017). Response of steel box columns in fire conditions. Journal of structural and construction engineering, 14(1), 101-112 (In Persian).
[4] Poon, C.S., Azhar, S., Anson, M & Wong, Y.L. (2001). Strength and durability recovery of fire-damaged concrete after post-fire-curing. Cement and Concrete Research, 31(9), 1307-1318.
[5] Kowalski, R., Wroblewska, J. (2020). Assessing concrete strength in fire-damaged structures. Construction and Building Materials, 254, 119122.
[6] Kowalski, R. (2010). Mechanical properties of concrete subjected to high temperature. Architecture, Civil Engineering, Environment, 3(2), 61-70.
[7] Bažant, Z.P., Kaplan, M.F. (1996). Concrete at High Temperatures. Material Properties and Mathematical Models, Longman, Harlow, Essex.
[8] Khoury, G.A. (1992). Compressive strength of concrete at high temperatures: a reassessment. Magazine of Concrete Research, 44(161), 291-309.
[9] Abrams, M.S. (1971). Compressive strength of concrete at temperatures to 1600F. Materials Science, 25, 33-58.
[10] Chudzik, P., Kowalski, R., Abramowicz., M. (2017). Strains of concrete in RC structures subjected to fire. Procedia Engineering, 193, 377-384.
[11] Hayhoe, W.C., Youssef, M.A. (2013). Structural behaviour of concrete walls during or after exposure to fire: A Review. CSCE 2013 General Conference, Montréal, Québec, p.10.
[12] Gui-rong, L., Yu-pu, S., Fu-lai,. Q. (2010). Post-fire cyclic behavior of reinforced concrete shear walls. Journal of Central South University of Technology, 17: 1103−1108.
[13] Wang, R., Xu, Y., Hu, C., Wang, W. (2014). Experimental study on seismic performance of concrete short-limb shear walls after fire. Tumo Gongcheng Xuebao/China Civil Engineering Journal, 47(1), 59-69.
[14] Chi, J.H., Hsu, Y.C & Chen, H.J. (2016). Failure patterns of reinforced lightweight aggregate concrete (RLAC) walls after high temperature. International Conference on Civil, Transportation and Environment. Published by Atlantis Press. DOI:10.2991/iccte-16.2016.10
[15] Xiao, J., Xie, Q., Li, Z & Wang, W. (2017). Fire resistance and post-fire seismic behavior of high strength concrete shear walls. Fire Technology, 53, 65–86.
[16] Ni, S & Birly, A.C. (2018). Post-fire seismic behavior of reinforced concrete structural walls. Engineering Structures, 168, 163-178.
[17] Ni, S & Gernay, T. (2021). Considerations on computational modeling of concrete structures in fire. Fire Safety, 120, 103065.
[18] Wang, Y.S., Zhou, H., Wu J.Y. (2023). Hybrid fire collapse simulation of reinforced concrete structures under localized fires, Engineering Structures, 293, 116525. https://doi.org/10.1016/j.engstruct.2023.116525
[19] Rezaeian, A., Hosseinlou, F., Qasim Hasan, A., Kuioon N.Z. (2023). Seismic performance of a dolphin-type berth structure under post-fire conditions. Journal of Hydraulic Structures, 9(4), 15-34. DOI: 10.22055/jhs.2024.45603.1277
[20] Rezaie, F., & Sayad Sedgh Herfeh, N. (2023). Numerical Study of Prestressed Concrete Joist Slab System Under Fire Conditions. Journal of Structural and Construction Engineering, 10(2), 232-253. doi: 10.22065/jsce.2022.305003.2575
[21] Saberi, V., saberi, H., Panahkhah, S. P., Sadeghi, A., & Noroozinejad Farsangi, E. (2022). Investigation of the Effect of Fire Loading on the Behavior of Connections with Beam-to-Column Bolted End Plate and T-Connection. Journal of Structural and Construction Engineering, 9(6), 108-129. doi: 10.22065/jsce.2021.303562.2563
[22] Amoushahi, H., & Moradi, M. (2021). Numerical evaluation of reinforced concrete connections under post-earthquake fire. Journal of Structural and Construction Engineering, 8(9), 306-336. doi: 10.22065/jsce.2020.239684.2192
[23] Saberi, H., Saberi, V., Javan, S., & Sadeghi, A. (2022). Evaluation the Effect of Number, Material and Configuration of Bolts on Rigid Bolted Connections under Fire. Journal of Structural and Construction Engineering, 9(1), 130-152. doi: 10.22065/jsce.2021.283722.2437
[24] EN 1994-1-2 (2005) (English): Eurocode 4: Design of composite steel and concrete structures – Part 1-2: General rules - Structural fire design [Authority: The European Union Per Regulation 305/2011, Directive 98/34/EC, Directive 2004 / 18 / EC].
[25] ABAQUS Documentation, Version 21, (2021).
[26] Rezaeian, A., Mansoori, M. and Khajehdezfuly, A. (2024). Performance of steel beam with welded top-seat angle connections at elevated temperatures. Journal of Structural Fire Engineering, 15 (1), 113-146. https://doi.org/10.1108/JSFE-07-2022-0026.

  • Receive Date 12 November 2023
  • Revise Date 05 June 2024
  • Accept Date 15 September 2024