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Fire-after-earthquake resistance of steel structures using rotational capacity limits

  • Pantousa, Daphne (Laboratory of Structural Analysis and Design, Department of Civil Engineering, University of Thessaly) ;
  • Mistakidis, Euripidis (Laboratory of Structural Analysis and Design, Department of Civil Engineering, University of Thessaly)
  • 투고 : 2015.09.03
  • 심사 : 2016.01.27
  • 발행 : 2016.04.25

초록

This paper addresses numerically the behavior of steel structures under Fire-after-Earthquake (FAE) loading. The study is focused on a four-storey library building and takes into account the damage that is induced in structural members due to earthquake. The basic objective is the assessment of both the fire-behavior and the fire-resistance of the structure in the case where the structure is damaged due to earthquake. The combined FAE scenarios involve two different stages: during the first stage, the structure is subjected to the ground motion record, while in the second stage the fire occurs. Different time-acceleration records are examined, each scaled to multiple levels of the Peak Ground Acceleration (PGA) in order to represent more severe earthquakes with lower probability of occurrence. In order to study in a systematic manner the behavior of the structure for the various FAE scenarios, a two-dimensional beam finite element model is developed, using the non-linear finite element analysis code MSC-MARC. The fire resistance of the structure is determined using rotational limits based on the ductility of structural members that are subjected to fire. These limits are temperature dependent and take into account the level of the structural damage at the end of the earthquake and the effect of geometric initial imperfections of structural members.

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참고문헌

  1. Cosenza, E. and Manfredi, G. (2000), "Damage indices and damage measures", Prog. Struct. Eng. Mater., 2(1), 50-59. https://doi.org/10.1002/(SICI)1528-2716(200001/03)2:1<50::AID-PSE7>3.0.CO;2-S
  2. Della Corte, G., Landolfo, R. and Mazzolani, F.M. (2003), "Post-earthquake fire resistance of moment resisting steel frames", Fire Safety J., 38(7), 593-612. https://doi.org/10.1016/S0379-7112(03)00047-X
  3. Eurocode 8 (2004), Design of structures for earthquake resistance-Part 1: General rules seismic actions and rules for buildings, Brussels.
  4. Eurocode 3 (2003), Design of steel structures-Part 1-2: General Rules-Structural fire design, Brussels.
  5. Eurocode 1 (2002), Actions on structures exposed to fire-Part 1-2. General actions-structural fire design, Brussels.
  6. Eurocode (2006), Basis of structural design, Brussels.
  7. Faggiano, B., Espoto, M., Mazzolani, F.M. and Landolfo, R. (2007), "Fire analysis of steel portal frames damaged after earthquake according to performance based design", Urban Habitat Constructions under Catastrophic Events, Cost C26, Workshop, Prague, Czech Republic.
  8. Faggiano, B., Espoto, M., Zaharia, R. and Pintea, D. (2008), "Structural analysis in case of fire after earthquake", Urban Habitat Constructions under Catastrophic Events, Cost Action C26, Malta University.
  9. Faggiano, B. and Mazzolani F.M. (2011), "Fire after earthquake robustness evaluation and design: Application to steel structures", Steel Constr. Des. Res., 4(3), 183-187. https://doi.org/10.1002/stco.201110025
  10. Iervolino, I., Maddaloni, G. and Cosenza, E. (2008), "Eurocode 8 compliant real record sets for seismic analysis of structures", J. Earthq. Eng., 12(1), 54-90. https://doi.org/10.1080/13632460701457173
  11. Kappos, A. (1997), "Seismic damage indices for RC buildings: evaluation of concepts and procedures", Prog. Struct. Eng. Mater., 1(1), 78-87. https://doi.org/10.1002/pse.2260010113
  12. Keller, W.J. (2012), "Thermomechanical response of steel moment-frame beam-column connections during post-earthquake Fire Exposure", Ph. D Dissertation, Lehigh University, Bethlehem, Pennsylvania.
  13. Keller, W. and Pessiki, S. (2012), "Effect of earthquake-induced damage to spray-applied fire-resistive insulation on the response of steel moment-frame beam-column connections during fire exposure", J. Fire Protection Eng., 22(4), 271-299. https://doi.org/10.1177/1042391512461126
  14. Kodur, V. and Dwaikat, M. (2009), "Response of steel beam-columns exposed to fire", Eng. Struct., 31(2), 369-379. https://doi.org/10.1016/j.engstruct.2008.08.020
  15. Lee, S., Davidson, R., Ohnishi, N. and Scawthorn, C. (2008), "Fire following earthquake-reviewing the State-of-the-Art of modeling", Earthq. Spectra, 24(4), 933-967. https://doi.org/10.1193/1.2977493
  16. MSC Software Corporation (2010), MSC Marc Volume A: Theory and User Information, USA.
  17. Pantousa, D. and Mistakidis, E. (2014), "Rotational capacity of damaged and undamaged steel I-beams at elevated temperatures", Proceedings of the seventh International Conference EUROSTEEL, Naples.
  18. Scawthorn, C., Eidinger, J.M. and Schiff, A. (2005), "Fire following earthquake", Technical Council on Lifeline Earthquake Engineering Monograph No. 26, 345, American Society of Civil Engineers, Reston.
  19. Vamvatsikos, D. and Cornell, C.A. (2002), "Incremental dynamic analysis", Earthq. Eng. Struct. Dyn., 31(3), 491-514. https://doi.org/10.1002/eqe.141
  20. Yassin, H., Iqbal, F., Bagchi, A. and Kodur, V.K.R. (2008), "Assessment of post-earthquake fire performance of steel-frame buildings", Proceedings of 14th World Conference on Earthquake Engineering, Beijing.
  21. Zaharia, R., Pintea, D. and Dubina, D. (2007), "Fire analysis and design of a composite steel-concrete structure", Steel Compos. Struct., Taylor & Francis Group London.
  22. Zaharia, R., Pintea, D. and Dubina, D. (2008) "Fire after earthquake-a natural fire approach", Proceedings of the fifth International Conference EUROSTEEL, Austria.
  23. Zaharia, R., Pintea, D. and Dubina, D. (2009), "Fire analysis of structures in seismic areas", Proceedings of the International Conference on Application of Structural Fire Engineering, Prague, Czech Republic.
  24. Zaharia, R. and Pintea, D. (2009), "Fire after earthquake analysis of steel moment resisting frames", Int. J. Steel Struct., 9(4), 275-284. https://doi.org/10.1007/BF03249501
  25. Zhao S. (2010), "GisFFE-an integrated software system for the dynamic simulation of fires following an earthquake based on GIS", Fire Safety J., 45(2), 83-97. https://doi.org/10.1016/j.firesaf.2009.11.001

피인용 문헌

  1. Post-earthquake fire resistance of steel buildings vol.138, 2017, https://doi.org/10.1016/j.jcsr.2017.08.021
  2. Antiseismic Method of Prestressed Fabricated Building Structure under Intelligent Big Data vol.2021, pp.None, 2016, https://doi.org/10.1155/2021/9834770
  3. Post-earthquake fire resistance of tall steel concentrically braced frames vol.21, pp.1, 2016, https://doi.org/10.12989/eas.2021.21.7.011
  4. Numerical simulation of damage patterns in the plastic hinge area of fire protected (SFRM) steel beams and its effect on their fire resistance vol.4, pp.2, 2016, https://doi.org/10.1002/cepa.1445