Structural Post-Fire Behaviour of the Steel I-Shape Beams-to-Cylindrical Columns

Abstract:

Previous researchers have tried to predict the response of different types of structures under elevated temperatures. The results are important in preventing the collapse of buildings in fire. Post-fire status of the structures is also of interest for ensuring the safety of rescue workers during the fire and in the post-fire situations. Determining the extent of the structural damage left behind a fire event is necessary to draw up adequate repair plans. Connections play an important role on the fire performance of different structures. Due to the high cost of fire tests, adequate experimental data about a broad range of connections is not available. A vulnerable type of such connections to fire is the weld connections between I-shape beams and cylindrical columns in oil platform topsides. Considering the high probability of fire in oil platforms, study of the behaviour of these connections at elevated temperatures and in the post-fire, is of great importance. In the current study, eight small scale experimental fire tests on welded connections between I-shape beams and cylindrical columns have been conducted. Four tests are aimed at investigating the structural performance of this connection at elevated temperature. In other tests, post-fire behaviour of these connections has been studied to investigate their residual structural strength.

• Periodical: Applied Mechanics and Materials (Volumes 249-250)
• Pages: 1057-1062
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.249-250.1057
• Online since: December 2012
• Authors: M. Zeinoddini, S.A. Hosseini, M. Daghigh, S. Arnavaz
• Keywords: Experimental Study, I-Beam-to-Cylindrical Column Connection, Oil Platforms, Post-Fire

References

[1] Yang K. Ch, Chen C. S, Ho M. C, Behavior of beam-to-column moment connections under fire load, Journal of Constructional Steel Research, 2009, 65, 1520_1527.

DOI: 10.1016/j.jcsr.2009.02.010

[2] Huo, J. S.,. Behaviour of steel beam to concrete-filled steel tubular column connections after exposure to fire., Doctoral thesis, Fuzhou Univ., Fuzhou, Fujian Province, (2005).

DOI: 10.1016/b978-008044637-0/50148-7

[3] Huo, J. S., and Han, L. H., Hysteretic behaviors of steel beam to concrete-filled steel tubular column connections after exposure to fire., Journal of Building Structures, 2006, 27_6_, 28–38.

DOI: 10.1016/b978-008044637-0/50148-7

[4] Rahman R, Hawileh R, Mahamid M., The effect of fire loading on a steel frame and connection, In: Brebbia CA, de Wilde WP, editors. High-performance structures and materials II, WIT Press; 2004, p.307–16.

[5] Eberg E, Amdahl J, Homlas H, Hekkelstrand B, Integrated analysis of offshore structures subjected to fire, Conf. on Structural Design against Accidental Loads – London 1992, UK, 23-24 September.

[6] Shetty N. K, Soares C, Thoft- Christensen P, Jensen F. M, Fire safety assessment and optimal design of passive fire protection for offshore structures, Reliability Engineering & System Safety, 1998, 61; 1-2, 139-149.

DOI: 10.1016/s0951-8320(97)00124-5

[7] Zeinoddini, M. and Parke, G.A. R, Dynamic Shakedown and Degradation of Elastic Reactions in Laterally Impacted Steel Tubes, International Journal of Damage Mechanics, 2011, 20-3, 400-422.

DOI: 10.1177/1056789509359675

[8] Zeinoddini, M., In-Situ Quasi-Static and Dynamic Behavioural Response of Steel Tubular Frames Subjected to Lateral Impact Loads, Latin American Journal of Solids and Structures, 2012, 9, 383 – 400.

DOI: 10.1590/s1679-78252012000300005

[9] Zeinoddini, M., Design of Offshore Oil/Gas Platforms against Ship Impacts: Dynamic and Quasi-Static Behaviour of Steel Tubulars, LAP Lambert Academic Publishing, Saarbrücken Germany, 2011, ISBN-13: 978-3845422701.

[10] Yang H, Han LH, Wang YC, Effects of heating and loading histories on post fire cooling behaviour of concrete filled steel tubular columns, Journal of Constructional Steel Research 2008; 64-5: 556_70.

DOI: 10.1016/j.jcsr.2007.09.007

[11] ISO 834. Fire resistance tests – elements of building construction. (2002).

[12] Hosseini S.A. Fire Effect on Behaviour of Beam-to-Pipe Column Connections in Oil Platform Decks, PhD thesis. Tehran (Iran): K.N. Toosi University; (2012).

[13] Yahyai M, Saedi Daryan A, The study of welded semi-rigid connections in fire, THE STRUCTURAL DESIGN OF TALL AND SPECIAL BUILDINGS, 2011, DOI: 10. 1002/tal. 727.

DOI: 10.1002/tal.727