Buckling of Built-Up Columns of Pultruded Fiber-Reinforced Polymer C-Sections
Publication: Journal of Composites for Construction
Volume 18, Issue 4
Abstract
This paper presents the test results of an experimental investigation to evaluate the buckling behavior of built-up columns of pultruded profiles, subjected to axial compression. Specimens are assembled by using four (off the shelf) channel shaped profiles of -glass fiber-reinforced polymer (FRP), having similar detailing to strut members in a large FRP structure that was executed in 2009 to start the restoration of the Santa Maria Paganica church in L’Aquila, Italy. This church had partially collapsed walls and no roof after the April 6, 2009, earthquake of 6.3 magnitude. A total of six columns are characterized with two different configurations for the bolted connections joining the channel sections into a built-up strut. Test results are discussed and a comparison is made with closed-form equation predictions for flexural buckling resistance, with buckling resistance values established from both eigenvalue and geometric nonlinear finite element analyses. Results show that there is a significant role played by the end loading condition, the composite action, and imperfections. Simple closed-form equations overestimate the flexural buckling strength, whereas the resistance provided by the nonlinear analysis provides a reasonably reliable numerical approach to establishing the actual buckling behavior.
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References
ANSYS Multiphysics, Release 14.0 [Computer software]. ANSYS, Canonsburg, PA.
Bank, L. C. (2006). Composites for construction—Structural design with FRP materials, Wiley, New York.
Barbero, E. J., Dede, E. K., and Jones, S. (2000). “Experimental verification of buckling-mode interaction in intermediate-length composite columns.” Int. J. Solids Struct., 37(29), 3919–3934.
Boscato, G., Mottram, J., and Russo, S. (2011). “Dynamic response of a sheet pile of fiber-reinforced polymer for waterfront barriers.” J. Compos. Constr., 974–984.
Boscato, G., and Russo, S. (2009). “Free vibrations of pultruded FRP elements: Mechanical characterization, analysis, and applications.” J. Compos. Constr., 565–574.
Di Tommaso, A., and Russo, S. (2003). “Shape influence in buckling of GFRP pultruded columns.” Mech. Compos. Mater., 39(4), 329–340.
Engesser, F. (1889). “Ueber die Knickfestigkeit gerader Stabe.” Zeitschrift für Architekter und Ingenieurwsen, 35(4), 455–462 (in German).
Fiberline. (2013). Fiberline design manual for structural profiles in composite materials, Fiberline Composites A/S, Kolding, Denmark.
Hashem, Z. A., and Yuan, R. L. (2001). “Short vs. long column behavior of pultruded glass-fiber reinforced polymer composites.” Constr. Build. Mater., 15(8), 369–378.
Lane, A., and Mottram, J. T. (2002). “The influence of modal coupling upon the buckling of concentrically pultruded fibre-reinforced plastic columns.” Proc. IME J. Mater. Des. Appl., 216(2), 133–144.
Mottram, J. T. (2004). “Determination of critical load for flange buckling in concentrically loaded pultruded columns.” Compos. Part B Eng., 35(1), 35–47.
Mottram, J. T. (2011). “Does performance based design with fibre reinforced polymer components and structures provide any new benefits and challenges?” Struct. Eng., 89(6), 23–27.
Mottram, J. T., Brown, N. D., and Anderson, D. (2003). “Physical testing for concentrically loaded columns of pultruded glass fibre reinforced plastic profile.” Struct. Build., 156(2), 205–219.
Pecce, M., and Cosenza, E. (2000). “Local buckling curves for the design of FRP profiles.” Thin-Walled Struct., 37(3), 207–222.
Russo, S. (2007). Strutture in Composito: Sperimentazione, Teoria e Applicazioni, U. Hoepli, ed., Milano, Italy (in Italian).
Russo, S. (2012). “Experimental and finite element analysis of a very large pultruded FRP structure subjected to free vibration.” Compos. Struct., 94(3), 1097–1105.
Russo, S., Boscato, G., and Mottram, J. T. (2012). “Design and free vibrations of a large temporary roof FRP structure for the Santa Maria Paganica Church in L’Aquila, Italy.” 6th Int. Conf. on FRP Composites in Civil Engineering (CICE 2012).
Turvey, G. J., and Zhang, Y. (2006). “A computational and experimental analysis of the buckling, postbuckling and initial failure of pultruded GRP columns.” Comput. Struct., 84(22–23), 1527–1537.
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© 2013 American Society of Civil Engineers.
History
Received: Jul 24, 2013
Accepted: Oct 29, 2013
Published online: Nov 28, 2013
Discussion open until: Apr 28, 2014
Published in print: Aug 1, 2014
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