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Computational Science, Engineering & Technology Series
ISSN 1759-3158
Edited by: B.H.V. Topping and Y. Tsompanakis
Chapter 7

Numerical and Experimental Assessment of Stainless and Carbon Bolted Tensioned Members

P.C.G. da S. Vellasco1, L.R.O. de Lima1, J. de J. dos Santos2, A.T. da Silva2, S.A.L. de Andrade3 and J.G.S. da Silva1

1Structural Engineering Department, State University of Rio de Janeiro (UERJ), Brazil
2Post Graduate Program in Civil Engineering (PGECIV), State University of Rio de Janeiro (UERJ), Brazil
3Civil Engineering Department, Pontifical Catholic University of Rio de Janeiro (PUC-Rio), Brazil

Full Bibliographic Reference for this chapter
P.C.G. da S. Vellasco, L.R.O. de Lima, J. de J. dos Santos, A.T. da Silva, S.A.L. de Andrade, J.G.S. da Silva, "Numerical and Experimental Assessment of Stainless and Carbon Bolted Tensioned Members", in B.H.V. Topping and Y. Tsompanakis, (Editor), "Civil and Structural Engineering Computational Technology", Saxe-Coburg Publications, Stirlingshire, UK, Chapter 7, pp 187-218, 2011. doi:10.4203/csets.28.7
Keywords: steel structural, beam-to-column joints, extended endplate joints, semirigid joints, experimental analysis, component method.

Stainless steel has been used in various types of construction due to its main characteristics associated with high corrosion resistance, durability, fire resistance [1], ease of maintenance, appearance and aesthetics. The development of the construction process and the new tendencies adopted in the architecture design concept, highlighted the need for materials that can combine versatility with durability. Despite these facts, current stainless steel design codes like the Eurocode 3, part 1.4 [2], are still largely based on carbon steel structural analogies [3]. This strategy was used as a first attempt to produce specific stainless steel structural design rules, enabling engineers to perform a smooth transition for the stainless steel design.

The present chapter presents an experimental numerical investigation aiming to evaluate the tension capacity of carbon and stainless steel bolted structural elements. The results are discussed and compared in terms of the stress distribution (that detects, for instance, first yield), and force-displacement curves, among others. The assessment of the results was made by comparison with the Eurocode 3 provisions for carbon and stainless steels. The investigation indicated that when stainless steel is used in certain structural engineering applications like joints under shear forces, the current design criteria based on deformation limits need to be re-evaluated especially due to the differences in the yield to ultimate deformation and stress ratios.

For carbon steel tests, good agreement was reached between the design equation and the experiments, a fact that was not corroborated in the stainless steel tests where large differences were observed, mainly in terms of the ultimate load.

A possible explanation for these discrepancies could be related to the fact that the great majority of stainless steel structural design codes are still based on carbon steel analogies. At this point it is interesting to observe that the stainless steel codes need to be improved in order to correctly evaluate the stainless steel structural elements behaviour.

L. Gardner, N.R. Baddoo, "Fire testing and design of stainless steel structures", Journal of Constructional Steel Research, 62, 532-543, 2006.
Eurocode 3, ENV 1993-1-4, 2003, "Design of steel structures - Part 1.4: General rules - Supplementary rules for stainless steel", CEN, European Committee for Standardisation, Brussels, 1996.
Eurocode 3, ENV 1993-1-1, 2003, "Design of steel structures - Structures - Part 1.1: General rules and rules for buildings", CEN, European Committee for Standardisation, Brussels, 2003.

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