Improvement of the Mechanical Properties of Formed Steel Cross Section Profile for Timber Upgrading

Abstract:

The main objective of this paper is to analyze the behaviour of cold formed steel cross section respect to mechanical characteristics, such as deflection, mainly. A cold formed steel profile with thickness of 1 mm regards is studied to determine its viability as reinforcement of timber upgrading. Thus, temperatures, stresses and strains have been analysed during the manufacturing process of these profiles, and also, the deflection supported, comparing between unreinforced and reinforce pieces. The analysis has been carried out by means of Finite Element Method, using DEFORM 2D software, during the simulation of manufacturing process and COPRA software during the final static computations. Results provide information about the integrity and good behavior of these profiles for timber upgrading.

• Periodical: Advanced Materials Research (Volume 498)
• Pages: 139-144
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.498.139
• Online since: April 2012
• Authors: C. González-Bravo, J. Claver, R. Álvarez, Rosario Domingo
• Keywords: Cold Formed Steel, Finite Element Method (FEM), Metal Forming, Timber Upgrading

References

[1] K. Lange: Handbook of Metal Forming (McGraw-Hill Book Company, 1985).

[2] M.P. Groover: Fundamentals of Modern Manufacturing. Materials, processes, and systems (2nd edt., John Wiley & Sons, USA, 2004).

[3] L. Zhang, G. Huang, H. Zhang and B. Song: J. Mater. Process. Tech. Vol. 211 (2011), pp.644-649.

[4] C. González-Bravo, F. Arriaga, L. Maldonado and R. Díez: Mater. Cons. Vol. 60 (2010), pp.123-135.

[5] C. González-Bravo: Recuperación de la capacidad mecánica en piezas de madera solicitadas a flexión en estructuras tradicionales operando por la cara superior mediante refuerzos y prótesis metálicas (Doctoral Thesis, Universidad Politécnica de Madrid 2007).

DOI: 10.20868/upm.thesis.442

[6] C. González-Bravo, F. Arriaga and R. Díez, in: Bending reinforcement of wooden beams with steel cross sections. Proceedings of the 10th World Conference on Timber Engineering, Miyazaki, Japan (2008).

[7] EN 408. Timber structures. Sawn timber and glued laminated timber for structural use. Determination of some physical and mechanical properties, (2004).

DOI: 10.3403/30159970

[8] H. Tanaka, H. Idota and T. Ono, in: Evaluation of buckling strength of hibrid timber columns reinforced with steel plates and carbon fiber sheets, Proceedings of 9th World Conference on Timber Engineering WCTE 2006. Portland, Oregon, USA.

[9] A. Ceccotti: Timber-concrete composite structures. Timber Engineering (STEP 2, E13. Centrum Hout, Holanda 1995).

[10] G. Bottinelli: Adrastea, (2000), p.16.

[11] F. Gramegna and F. Marampon: Adrastea, Vol. 7 (1996), pp.40-47.

[12] DIN 571 Hexagon head wood screws.

[13] A. Sedlmaier and V. Castro: Deformación Metálica (2004), p.274.