Browse > Article
http://dx.doi.org/10.14346/JKOSOS.2022.37.4.101

Numerical Study on the Fire Damaged Reinforced Concrete Building Structures Considering Influencing Fire Case and Parameters of Columns  

Suh, Yeonwoo (Department of Interior Architecture Design, Hanyang University)
Son, Hee Ju (Department of Architectural & Urban Systems Engineering, Ewha Womans University)
Publication Information
Journal of the Korean Society of Safety / v.37, no.4, 2022 , pp. 101-112 More about this Journal
Abstract
Expanding urbanization practices result in high numbers of buildings being developed in city centers. This high building concentration leads to an increased fire risk, resulting in higher casualty rates and increased economic damages compared to fires in the past. The purpose of this study was to analyze the structural behavior of fire-damaged reinforced concrete buildings using analytical methods and to suggest methods of improving fire resistance in the event of a fire. Damage levels were measured using commercial software to apply the finite element method, ABAQUS, and MIDAS GEN to the dataset. Load-deflection curves were calculated using the effective area and moment of inertia of the fire-damaged columns provided by ABAQUS. The results of this analysis indicate that fire-damaged beams with experience greater deflection from indoor fires than they will from outdoor fires. Fires that occurred on the middle floors were more dangerous than those occurring on higher floors, and eccentrically loaded columns experienced more damage than axially loaded columns. The results indicate that these methods accurately predict structural behaviors of fire damaged concrete columns by considering fire exposure area and eccentric loading.
Keywords
fire resistance performance; reinforced concrete column; eccentricity; load-deflection curve; fire;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
연도 인용수 순위
1 G. H. Choi et al., "The Characteristics of Structural Behavior of RC Column according to Exposure Conditions under Fire", Korea Concrete Institute, Vol. 30, No. 1, pp. 87-88, 2018.
2 J. Y. Hwang et al., "Numerical Analysis of Reinforced Concrete Frame Structures Under Various Fire Scenarios", Korean Society of Hazard Mitigation, Vol. 20, No. 2, pp. 189-195, 2020.   DOI
3 Ministry of Land, Infrastructure and Transport, "Building Structure standards" (KDS 41 10 15), 2019,
4 S. F. Mohamed, "Effect of fire on FRP Reinforced Concrete Members", Composite Structures, Vol. 58, No. 1, pp. 11-20, 2002   DOI
5 D. Yang et al., "Structural Behaviour and Design of End-restrained Square Tubed-reinforced-concrete Columns Exposed to Fire", Journal of Constructional Steel Research, Vol. 182, pp. 1-32, 2021.
6 EN, B, Eurocode2; Design of Concrete of Concrete Structures-Part 1-2; General Rules-Structural Fire Design: ENV 1992-1-2, 2004.
7 J. H. Kim et al., "Development of a Novel Real-Time Monitoring System Algorithm for Fire Prevention", J. Korean Soc. Saf., Vol. 29, No. 5, pp. 47-53, 2014.
8 J. H. Yoon, C. H. Lee and S. K. Yoon, "A Study on Compressive Strength of Centrally-Loaded Steel Columns at Elevated Temperatures", Journal of Korean Society of Steel Construction, Vol. 28, No. 4, pp. 253-261, 2016.   DOI
9 E. M. Ryu, "Post-fire Structural Performance of High Strength Concrete Walls and Columns", Ph.D Dissertion, Ewha Womans University, p. 13, 2020.
10 S. R. Sim and D. W. Ryu, "Fire Resistant Performance after Application of Repaired Materials for Fire-Damaged Reinforced Concrete Column", Journal of the Architectural Institute of Korea Structure & Construction, Vol. 36, No. 5, pp. 147-154, 2020.
11 Y. T. Kim et al. "A Study on the Fire Risk Comparison of Building Flooring Materials by External Heat Flux", J. Korean Soc. Saf., Vol. 32, No. 5, pp. 20-24, 2017.
12 J. K. Min et al., "Fire Resistance Performance of Aramid Fiber-Reinforced Concrete Columns with Embedded Cerak Wool Boards", Journal of the Korean Society for Advanced Composite Structures, Vol. 11, No. 1, pp. 63-71, 2021.
13 Y. S. Shin et al., "Experimental Study on the Temperature Distribution and Residual Strength of Fire-damaged RC Columns Depending on Heated Areas", Journal of the Korean Society of Hazard Mitigation, Vol. 20, No. 3, pp. 75-80, 2020.
14 "KBC 2009 Practical Example Book of Structural Design of Concrete Easy to Understand", Korea Concrete Institute, The Korean Structural Engineers Association, 2009.