Evaluation of Sensitivity Analysis Methods in RC Frame Exposed Post-Earthquake Fire

Authors

Department of Civil Engineering, Babol Noshirvani University of Technology, Babol, Iran

Abstract

In this research, a 7-story three-dimensional structure with 4span (5-meter) with a square plan is considered. After the initial design, the mid-frame of the structure has been selected as a frame for mechanical-thermal analysis. In this research, pushover analysis is used to simulate structural behavior in seismic load. Three levels of IO, LS, and CP are considered for assessing the behavior of the structure in the post-earthquake fire scenario in the pushover analysis. The failure time of a concrete frame decreases in post-earthquake fire loading by increasing the level of performance. This reduction is 51% for the LS level and 29% for the CP level. It shows that rupture time has the highest sensitivity to seismic load. At all performance levels, among the design parameters, the yield stress of the armature has the highest sensitivity among other variables. The modulus of elasticity of the armature and the length of the span have the least sensitivity among different parameters.

Keywords

Main Subjects

References

Bommer JJ, Boore DM, “Engineering seismology; encyclopaedia of geology”, New York, Academic Press, 2004.
Choi H, Sanada Y, Kashiwa H, Watanabe Y, Tanjung J, Jiang H, “Seismic Response Estimation Method for Earthquake-Damaged RC Buildings”, Earthquake Engineering and Structural Dynamics, 2016, 45, 99-1018.
Dwaikat MB, Kodur VKR, “Fire induced spelling in high strength concrete beams”, Fire Technology, 2010, 46, 1, 251-274.
Elhami Khorasani N, Garlock M, Quiel S, “Modeling steel structures in OpenSees: Enhancements for fire and multi-hazard probabilistic analyses”, Computers and Structures, 2015, 157, 218-231.
Ervine A, “Damaged Reinforced Concrete Structures in Fire”, Edinburgh University, PhD Thesis, 2012.
FEMA356. Prestandard and commentary for the seismic rehabilitation of buildings: FEMA356, in rehabilitation requirements. Washington, DC, USA: Federal Emergency Management Agency (FEMA), 2000.
Gui-rong L, Yu-Pu S, Fu-Lai Q, “Post-fire cyclic behavior of reinforced concrete shear walls”, Journal of Central South University, Technol, 2010, 17, 1103-1108.
Guo Q, Jeffers AE, “Finite-Element Reliability Analysis of Structures Subjected to Fire”, Struct Engineering ASCE, 2014, 49, 793-811.
Imani R, Mosqueda G, Bruneau M, “Experimental Study on Post-Earthquake Fire Resistance of Ductile Concrete-Filled Double-Skin Tube Columns”, Journal of Structural Engineering, 2015, 141 (8), 257-273.
Iqbal S, Harichandran RS, “Capacity reduction and fire load factors for LRFD of steel columns exposed to fire”, Fire Safty, 2011, 46, 234-242.
Kamath P, Kumar Sharma U, Kumar V, Bhargava P, Usmani A, Singh B, Singh Y, Torero J, Gillie M, Pankaj P, “Full-scale fire test on an earthquake-damaged reinforced concrete frame”, Fire Safety Journal, 2015, 73, 1-19.
Kim J, Park JH, Lee TH, “Sensitivity analysis of steel buildings subjected to column loss”, Engineering Structures, 2011, 33, 421-432.
Kodur VR, Harmathy TZ, “Properties of building materials”, in SFPE Handbook of Fire Protection Engineering, P.J. DiNenno, Ed., National Fire Protection Association, Quincy, Mass, USA, 2008.
Lee TH, Mosalam KM, “Seismic Demand Sensitivity of Reinforced Concrete Shear-Wall Building Using FOSM Method”, Earthquake Engineering and Structural Dynamics, 2005, 34, 14, 1719-1736.
Lie TT, Kodur VKR, “Thermal and mechanical properties of steel-fibre-reinforced concrete at elevated temperatures”, Canadian Journal of Civil Engineering, 1996, 23 (2) 511-517.
Minson A, Eurocode 2-3. Concrete Structures, 2006, 40 (1), 30-31.
Parisi F, Scalvenzi M, Brunesi E, “Performance limit states for progressive collapse analysis of reinforced concrete framed buildings”, Structural Concrete, 2018, 1-17.
Remesh K, Tan KH, “Performance comparison of zone models with compartment fire tests”, Journal of Fire Sciences, 2011, 25 (4), 321-353.
Scawthorn C, “Fire Following Earthquakes”, New York, McGraw-Hill, 1992.
Scawthorn C, Eidinger JM, Schiff AJ., “Fire following earthquake. Technical council on lifeline earthquake engineering”, Monograph No. 26. Reston: Published by the American Society of Civil Engineers; 2005.
Scawthorn C, Eidinger JM, Schiff AJ, “Fire Following Earthquake”, ASCE Publications, Reston, VA, 2005.
Tavakoli HR, Kiakojouri F, “Numerical study of progressive collapse in framed structures: a new approach for dynamic column removal”, International Journal of Engineering-Transactions A: Basics, 2013, 26.
Tavakoli HR, Moradi Afrapoli M, “Robustness Analysis of Steel Structures with Various Lateral Load Resisting Systems under Seismic Progressive Collapse”, Engineering Failure Analysis, 2018, 83, 89-101.
Tavakoli HR, Rashidi A, Akbarpour S, “Effect of lateral force resisting system on seismic performance of special steel frames under progressive collapse”, Sharif: Civil Engineering (In Persian), 2016, 31 (2), 101-108.
Tavaloki HR, Naghavi F, Goltabar AR, “Effect of base isolation systems on increasing the resistance of structures subjected to progressive collapse”, Earthquakes and Structures, 2015, 9 (3), 639-656.
Vamvatsikos D, Cornell CA, “Incremental dynamic analysis. Earthquake Engineering and Structural Dynamics”, 2011, 31 (3), 491-514.
Youssef MA, Moftah M, “General stress-strain relationship for concrete at elevated temperatures”, Engineering Structures, 2007, 29 (10), 2618-2634.
Journal of Civil and Environmental Engineering
Volume 52.3, Issue 108 - Serial Number 108
Autumn of 2022
November 2022
Pages 127-139

Files

Share

How to cite

Statistics