The Behaviour of Cold-Formed stiffened Channels Using ANSYS
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Sigma, purlins, Cold, formed, lateral restraints, nonlinearity
Abstract
In this study, the behavior of cold-formed channels with flange lips and web stiffener steel sections evaluated using the developed technical means. The effect of lateral restraints of purlins of cold-formed sigma sections provided by the roof sheeting is investigated. Finite element analysis software ANSYS is incorporated for calculation to fulfill the accuracy, quickness, and easiness. Uniformly distributed loads are applied on the upper flange of the purlins downward. Connection of roof sheeting to the purlin provided lateral restraints to the purlins. ANSYS software provided a high ability for simulating the model of connection roof sheeting to the purlins. The support type cleat is used to connect purlin to the main beams or the main structure. During the analysis, three types of buckling; local, distortion, and lateral torsion are expected to be explored or at least one of them.The extensive work has been conducted before this study on cold-formed steel purlins and purlin sheeting systems are still few. So the case require many investigations using many and different (various) means to predict the precise response of connecting roof sheeting to purlins. The geometric and material non-linear analyses have performed using ANSYS. In addition, a comparison between the angles of the web stiffeners has conducted. The aim was to evaluate the effect of the lateral restraints on the purlins, and to obtain a new optimal cross-section. During the comparison, the area of the cross-section kept the same for all the elements to obtain the same mass.
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References
[1] Al Nageim, H., & MacGinley, T. J. (2005). Steel Structures: Practical Design Studies. 3rd ed. Online resource cited via ScienceDirect. Accessed 27 June 2011.
[2] Ambrose, J. E. (1997). Simplified Design of Steel Structures. 7th ed. New York: John Wiley & Sons, Inc. Based on the work of the late Harry Parker.
[3] ANSYS. (2009). ANSYS Release 12: Manual Book. Salford University Library.
[4] Ballio, G., & Mazolani, F. M. (1983). Theory and Design of Steel Structures. London and New York: Chapman and Hall.
[5] Beale, R. G., Godely, M. H. R., & Enjily, V. (2001). A theoretical and experimental investigation into cold-formed channel sections in bending with the unstiffened flanges in compression. Computers & Structures, 79, 2403–2411.
[6] British Standards Institution. (2009). BS EN 1993-1-3:2006 and Eurocode EN 1993-1-3:2006 (E). London: BSI.
[7] Cherry, S. (1996). The stability of beams with buckled compression flanges. Thin-Walled Structures, 25, 277–285.
[8] Chu, X., Ye, Z., Li, L., & Kettle, R. (2004). Buckling behaviour of cold-formed channel sections under uniformly distributed loads. Thin-Walled Structures, 43, 531–542.
[9] Chu, X., Rickard, J., & Li, L. (2005). Influence of lateral restraint on lateral-torsional buckling of cold-formed steel purlins. Thin-Walled Structures, 43, 800–810.
[10] Chu, X., Kettle, R., & Li, L. (2004). Lateral-torsion buckling analysis of partial-laterally restrained thin-walled channel-section beams. Journal of Constructional Steel Research, 60, 1159–1175.
[11] Feng, M., Wang, Y. C., & Davies, J. M. (2004). A numerical imperfection sensitivity study of cold-formed thin-walled tubular steel columns at uniform elevated temperatures. Thin-Walled Structures, 42, 533–555.
[12] Feng, M., & Wang, Y. C. (2005). An experimental study of loaded full-scale cold-formed thin-walled steel structural panels under fire conditions. Fire Safety Journal, 40, 43–63.
[13] Gere, J. M., & Timoshenko, S. P. (1987). Mechanics of Materials. 2nd SI ed. London: Van Nostrand Reinhold (International) Co. Ltd.
[14] Grey, C. N., & Moen, C. D. (2011). Elastic Buckling Simplified Methods for Cold-Formed Columns and Beams with Edge-Stiffened Holes. Online resource cited through Google. Accessed 27 June 2011.
[15] Gotluru, B. P., Schafer, B. W., & Peköz, T. (2000). Torsion in thin-walled cold-formed steel beams. Thin-Walled Structures, 37, 127–145.
[16] Kankanamge, N. D., & Mahendran, M. (2009). Lateral-torsional buckling of cold-formed steel beams at ambient temperature. The Third System Postgraduate Student Conference. Online resource cited through Google. Accessed 27 June 2011.
[17] Katnam, K. B., De Strycker, M., Impe, R. V., & Lagae, G. (2006). The influence of rotational restraint on the behaviour of cold-formed steel continuous purlins attached to roof sheeting. Proceedings of the Eighth International Conference on Computational Structures Technology, United Kingdom.
[18] Katnam, K. B., Impe, R. V., Lagae, G., & De Strycker, M. (2007). Modeling of cold-formed steel sandwich purlin-sheeting system to estimate the rotational restraint. Thin-Walled Structures.
[19] Kolcu, F., Ekmekyapar, T., & Özakça, M. (2010). Linear buckling optimization and post-buckling behavior of optimized cold-formed steel members. Scientific Research and Essays, 5(14), 1916–1924.
[20] Tran, T., & Li, L. (2006). Global optimization of cold-formed steel channel sections. Thin-Walled Structures, 44, 399–406.
[21] Vieira, Jr., Malite, M., & Schafer, B. W. (2010). Simplified models for cross-section stress demands on C-section purlins in uplift load. Thin-Walled Structures, 48, 33–41.
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