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A numerical analysis on the performance of buckling restrained braces at fire-study of the gap filler effect
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 Title & Authors
A numerical analysis on the performance of buckling restrained braces at fire-study of the gap filler effect
Talebi, Elnaz; Tahir, Mahmood Md.; Zahmatkesh, Farshad; Kueh, Ahmad B.H.;
Buckling Restrained Braces (BRB) have been widely used in the construction industry as they utilize the most desirable properties of both constituent materials, i.e., steel and concrete. They present excellent structural qualities such as high load bearing capacity, ductility, energy-absorption capability and good structural fire behaviour. The effects of size and type of filler material in the existed gap at the steel core-concrete interface as well as the element`s cross sectional shape, on BRB`s fire resistance capacity was investigated in this paper. A nonlinear sequentially-coupled thermal-stress three-dimensional model was presented and validated by experimental results. Variation of the samples was described by three groups containing, the steel cores with the same cross section areas and equal yield strength but different materials (metal and concrete) and sizes for the gap. Responses in terms of temperature distribution, critical temperature, heating elapsed time and contraction level of BRB element were examined. The study showed that the superior fire performance of BRB was obtained by altering the filler material in the gap from metal to concrete as well as by increasing the size of the gap. Also, cylindrical BRB performed better under fire conditions compared to the rectangular cross section.
Buckling Restrained Braces (BRB);gap filler material;fire resistance;cross sectional shape;finite element analysis;
 Cited by
Fire response of a 3D multi-storey building with buckling restrained braces, Latin American Journal of Solids and Structures, 2015, 12, 11, 2118  crossref(new windwow)
ABAQUS (2008), ABAQUS analysis user's manual; SIMULIA, Providence, RI, USA.

Asgarian, B. and Shokrgozar, H.R. (2009), "BRBF response modification factor", J. Construct. Steel Res., 65(2), 290-298. crossref(new window)

Clark, P., Aiken, I., Kasai, K., Ko, E. and Kimura, I. (1999), "Design procedures for buildings incorporating hysteretic damping devices", Proceeding of 69th Annual Convention, SEAOC, Sacramento, CA, USA, October.

Espinos, A., Gardner, L., Romero, M.L. and Hospitaler, A. (2011), "Fire behaviour of concrete filled elliptical steel columns", J. Thin-Wall. Struct., 49(2), 239-255. crossref(new window)

Eurocode 3 (EC3) (2005), Design of steel structures-part 1-2: general rules -structural fire design, British Standards Institution, BS EN 1993-1-2, London, UK.

Eurocode 4 (EC4) (2005), Design of composite steel and concrete structures- part 1-2: general rulesstructural fire design, British Standards Institution, BS EN 1994-1-2, London, UK.

Ho, C.T.T. (2010), "Analysis of thermally induced forces in steel columns subjected to fire", Masters Thesis; Submitted to the University of Texas at Austin, TX, USA.

Hong, S. and Varma, A.H. (2009), "Analytical modeling of the standard fire behavior of loaded CFT columns", J. Construct. Steel Res., 65, 54-69. crossref(new window)

International Code Council (ICC) (2009), International Building Code; Falls Church, VA, USA.

ISO (International Standards Organization) (1980), ISO 834: fire resistance tests, elements of building construction, Switzerland.

Jankowiak, T. (2005), "Identification of parameters of concrete damage plasticity constitutive model", Poznan University of Technology, Poznan, Poland, ISSN 1642-9303.

Korzekwa, A. and Tremblay, R. (2009), Numerical Simulation of the Cyclic Inelastic Behaviour of Buckling Restrained Braces, Taylor & Francis Group, London, UK, pp. 653-658.

Lopez-Almansa, F., Castro-Medina, J.C. and Oller, S. (2012), "A numerical model of the structural behavior of buckling-restrained braces", J. Eng. Struct., 41, 108-117. crossref(new window)

Lu, H. (2011), "FE modelling and fire resistance design of concrete filled double skin tubular columns", J. Construct. Steel Res., 67(11), 1733-1748. crossref(new window)

Mirtaheri, M., Gheidi, A., Zandi, A.P., Alanjari, P. and Rahmani-Samani, H. (2011), "Experimental optimization studies on steel core lengths in buckling restrained braces", J. Construct. Steel Res., 67(8), 1244-1253. crossref(new window)

Nguyena, A.H., Chintanapakdee, C. and Hayashikawab, T. (2010), "Assessment of current nonlinear static procedures for seismic evaluation of BRBF buildings", J. Construct. Steel Res., 66(8-9), 1118-1127. crossref(new window)

Sahoo, D.R. and Chao, S.H. (2010), "Performance-based plastic design method for buckling restrained braced frames", J. Eng. Struct., 32(9), 2950-2958. crossref(new window)

Saitoh, K., Nakata, Y., Murai, M. and Iwata, M. (2005), "Fire-resistant performance of buckling restrained braces using mortar planks", AIJ J. Technol., 22, 223-226. [In Japanese]

Sun, R.R., Huang, Z. and Burgess, I.W. (2012), "The collapse behaviour of braced steel frames exposed to fire", J. Construct. Steel Res., 72, 130-142. crossref(new window)

Takeuchi, T., Hajjar, J.F., Matsui, R., Nishimoto, K. and Aiken, I.D. (2010), "Local buckling restraint condition for core plates in buckling restrained braces", J. Construct. Steel Res., 66(2), 139-149. crossref(new window)

Talebi, E., Tahir, M., Zahmatkesh, F., Yasreen, A. and Mirza, J. (2014a), "Thermal behaviour of cylindrical buckling restrained braces at elevated temperatures", The Sci. World J., 2014, 13 p.

Talebi, E., Tahir, M., Zahmatkesh, F. and Kueh, A. (2014b), "Comparative study on the behaviour of buckling restrained braced frames at fire", J. Construct. Steel Res., 102, 1-12. crossref(new window)

Zahmatkesh, F. and Talebi, E. (2010), "The performance of bolted slant endplate connections subjected to temperature increase", Proceedings of the ASME 10th Biennial Conference on Engineering Systems Design and Analysis, ESDA2010, Istanbul, Turkey, July, pp. 1-11.

Zahmatkesh, F., Osman, H. and Talebi, E. (2014), "Thermal behaviour of beams with slant end-plate connection subjected to nonsymmetric gravity load", The Sci. World J., 2014, 13 p.