Experimental and Analytical Investigations on Short-Term Behavior of Glubam-Concrete Composite Beams
Publication: Journal of Structural Engineering
Volume 146, Issue 3
Abstract
This paper describes the results of short-term bending tests on glued laminated bamboo (glubam) and concrete composite (BCC) beams. Four types of connection details were designed and tested: continuous steel mesh (SM), screw connector (SC), notch connector (NC) and pre-tightening notched connector (PNC). Experimental variables include length and numbers of connectors. Four-point bending tests to failure were performed on nine full-scale BCC beams with 8.0 m long. All BCC beams with different connections exhibited satisfactory performance under short-term loading conditions. The 200 mm long notch connection is recommended for composite beams for higher load carrying capacity and composite action as well as the merit of fewer connectors. The semi-prefabricated composite beam using PNC shows the similar bending capacity compared with the corresponding casting in situ BCC, indicating a good prospect in the prefabricated and assembled structures. A finite element (FE) model is presented and shown to predict the behaviors of the tested specimens in a satisfactory manner. The –method, provided by Annex B of Eurcode 5, overestimates the load carrying capacity of BCC beams at ultimate limit state (ULS), by a margin of 116–190%. The upper and lower limit spacing of connections tested in this study are also presented based on the numerical analysis.
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Data Availability Statement
All data, models generated or used during this study are available from the corresponding author by request.
Acknowledgments
The experimental work of this research was conducted with the in-kind supports of Key Laboratory for Green & Advanced Civil Engineering Materials and Application Technology of Hunan Province, the MOE Key Laboratory of Building Safety and Energy Efficiency at Hunan University under the support of the National Key R&D Program of China (2017YFC0703502), Science and Technology Bureau of Changsha Municipality (K1303042-11), and the distinguished professorship of the ZJUI provided to the corresponding author.
References
Boccadoro, L., S. Zweidler, R. Steiger, and A. Frangi. 2017. “Calculation model to assess the structural behavior of LVL-concrete composite members with ductile notched connection.” Eng. Struct. 153 (Dec): 106–117. https://doi.org/10.1016/j.engstruct.2017.10.024.
Ceccotti, A. 1995. “Timber-concrete composite structures.” In Timber Engineering STEP 2, edited by H. Blass, P. Aune, B. S. Choo, R. Gorlacher, D. R. Griffiths, B. O. Hilson, P. Racher, and G. Steck, E13/1–E13/12. 1st ed. Almere, Netherlands: Centrum Hout.
Ceccotti, A., M. Fragiacomo, and S. Giordano. 2006a. “Long-term and collapse tests on a timber-concrete composite beam with glued-in connection.” Mater. Struct. 40 (1): 15–25. https://doi.org/10.1617/s11527-006-9094-z.
Ceccotti, A., M. Fragiacomo, and S. Giordano. 2006b. “Behavior of a timber-concrete composite beam with glued connection at strength limit state.” In Proc., 9th World Conf. on Timber Engineering, 8. Portland, OR: Curran Associates.
CEN (European Committee for Standardization). 1991. Timber Structures Joints Made with Mechanical Fasteners—General Principles for the Determination of Strength and Deformation Characteristics. EN 26891. Brussels, Belgium: CEN.
CEN (European Committee for Standardization). 2001. Timber Structures-Test Methods-Cyclic Testing of Joints Made with Mechanical Fasteners. EN 12512. Brussels, Belgium: CEN.
CEN (European Committee for Standardization). 2003. Design of Timber Structures. 1-1: General Rules and Rules for Buildings. Eurocode 5, prEN 1995-1-1. Brussels, Belgium: CEN.
Chassagne, P., E. Bou Saïd, F. J. Jullien, and P. Galimard. 2006. “Three-dimensional creep model for wood under variable humidity numerical analyses at different material scales.” Mech. Time-Depend. Mater. 9 (4): 203–223. https:// doi.org/10.1007/s11043-005-9001-y.
Chen, J. 2012. “Experimental study of glubam durability and environmental performance.” M.Eng. thesis, College of Civil Engineering, Univ. of Hunan.
Clouston, P., L. Bathon, and A. Schreyer. 2005. “Shear and bending performance of a novel wood-concrete composite system.” J. Struct. Eng. 131 (9): 1404–1412. https://doi.org/10.1061/(ASCE)0733-9445(2005)131:9(1404).
Crocetti, R., T. Sartori, and R. Tomasi. 2015. “Innovative timber-concrete composite structures with prefabricated FRC slabs.” J. Struct. Eng. 141 (9): 04014224. https://doi.org/10.1061/(ASCE)ST.1943-541X.0001203.
Deam, B., M. Fragiacomo, and A. Buchanan. 2007. “Connections for composite concrete slab and LVL flooring systems.” Mater. Struct. 41 (3): 495–507. https://doi.org/10.1617/s11527-007-9261-x.
Deam, B. L., M. Fragiacomo, and L. S. Gross. 2008. “Experimental behavior of prestressed LVL-concrete composite beams.” J. Struct. Eng. 134 (5): 801–809. https://doi.org/10.1061/(ASCE)0733-9445(2008)134:5(801).
Dias, A. M. P. G., and L. F. C. Jorge. 2011. “The effect of ductile connectors on the behavior of timber-concrete composite beams.” Eng. Struct. 33 (11): 3033–3042. https://doi.org/10.1016/j.engstruct.2011.05.014.
Dias, A. M. P. G., J. W. Van de Kuilen, S. Lopes, and H. Cruz. 2007. “A non-linear 3D FEM model to simulate timber-concrete joints.” Adv. Eng. Software 38 (8–9): 522–530. https://doi.org/10.1016/j.advengsoft.2006.08.024.
Fragiacomo, M. 2005. “A finite element model for long-term analysis of timber-concrete composite beams.” Struct. Eng. Mech. 20 (2): 173–189. https://doi.org/10.12989/sem.2005.20.2.173.
Fragiacomo, M., C. Amadio, and L. Macorini. 2004. “A finite element model for collapse and long-term analysis of steel-concrete composite beams.” J. Struct. Eng. 130 (3): 489–497. https://doi.org/10.1061/(ASCE)0733-9445(2004)130:3(489).
Fragiacomo, M., C. Amadio, and L. Macorini. 2007a. “Short-and long-term performance of the ‘Tecnaria’ stud connector for timber-concrete composite beams.” Mater. Struct. 40 (10): 1013–1026. https://doi.org/10.1617/s11527-006-9200-2.
Fragiacomo, M., R. Gutkowski, J. Balogh, and R. Fast. 2007b. “Long-term behavior of wood-concrete composite floor/deck systems with shear key connection detail.” J. Struct. Eng. 133 (9): 1307–1315. https://doi.org/10.1061/(ASCE)0733-9445(2007)133:9(1307).
Gutkovski, R. M., K. Brown, A. Shigidi, and J. Natterer. 2008. “Laboratory tests of composite wood-concrete beams.” Constr. Build. Mater. 22 (6): 1059–1066. https:// doi.org/10.1016/j.conbuildmat.2007.03.013.
Hong, W., Y. C. Jiang, B. Li, Z. Qin, and X. M. Hua. 2018. “Nonlinear parameter identification of timber-concrete composite beams using long-gauge fiber optic sensors.” Constr. Build. Mater. 164: 217–227. https://doi.org/10.1016/j.conbuildmat.2017.12.211.
Jorge, L. F., S. Lopes, and H. Cruz. 2011. “Interlayer influence on timber-LWAC composite structures with screw connections.” J. Struct. Eng. 137 (5): 618. https://doi.org/10.1061/(ASCE)ST.1943-541X.0000299.
Khorsandnia, N., H. Valipour, and M. Bradford. 2018. “Deconstructable timber-concrete composite beams with panelised slabs: Finite element analysis.” Constr. Build. Mater. 163 (Feb): 798–811. https://doi.org/10.1016/j.conbuildmat.2017.12.169.
Khorsandnia, N., H. Valipour, and K. Crews. 2012. “Experimental and analytical investigation of short-term behavior of LVL-concrete composite connections and beams.” Constr. Build. Mater. 37 (Dec): 229–238. https://doi.org/10.1016/j.conbuildmat.2012.07.022.
Khorsandnia, N., H. Valipour, J. Schanzlin, and K. Crews. 2016. “Experimental investigations of deconstructable timber-concrete composite beams.” J. Struct. Eng. 142 (12): 04016130. https://doi.org/10.1061/(ASCE)ST.1943-541X.0001607.
LeBorgne, M. R., and R. M. Gutkowski. 2010. “Effects of various admixtures and shear keys in wood-concrete composite beams.” Constr. Build. Mater. 24 (9): 1730–1738. https://doi.org/10.1016/j.conbuildmat.2010.02.016.
Lukaszewska, E. 2009. “Development of prefabricated timber-concrete composite floors.” Ph.D. thesis, Dept. of Civil, Mining, and Environmental Engineering, Luleå Univ. Of Technology.
Lukaszewska, E., M. Fragiacomo, and H. Johnsson. 2010. “Laboratory tests and numerical analysis of prefabricated timber-concrete composite floors.” J. Struct. Eng. 136 (1): 46–55. https://doi.org/10.1061/(ASCE)ST.1943-541X.0000080.
Monteiro, S. R. S., A. M. P. G. Dias, and S. M. R. Lopes. 2016. “Transverse distribution of internal forces in timber-concrete floors under external point and line loads.” Constr. Build. Mater. 102 (Jan): 1049–1059. https://doi.org/10.1016/j.conbuildmat.2015.09.047.
Samuel, C. A., S. Luca, and S. Alexander. 2016. “Simplified nonlinear model for timber-concrete composite beams.” Int. J. Mech. Sci. 117 (Oct): 30–42. https://doi.org/10.1016/j.ijmecsci.2016.07.019.
Sebastian, W. M., J. Mudie, J. Cox, M. Piazza, R. Tomasi, and I. Giongo. 2016. “Insight into mechanics of externally indeterminate hardwood-concrete composite beams.” Constr. Build. Mater. 102 (Jan): 1029–1048. https://doi.org/10.1016/j.conbuildmat.2015.10.015.
Shan, B., J. Chen, and Y. Xiao. 2012. “Mechanical properties of glubam sheets after artificial accelerated aging.” In Vol. 517 of Proc., 13th Int. Conf. on Non-Conventional Materials and Technologies, Key Engineering Materials, 43–50. Zurich, Switzerland: Trans Tech Publications.
Shan, B., Y. Xiao, W. L. Zhang, and B. Liu. 2017. “Mechanical behavior of connections for glubam-concrete composite beams.” Constr. Build. Mater. 143 (Jul): 158–168. https://doi.org/10.1016/j.conbuildmat.2017.03.136.
To, L., M. Fragiacomo, J. Balogh, and R. Gutkowski. 2011. “Long-term load test of a wood-concrete composite beam.” Proc. Inst. Civ. Eng.: Struct. Build. 164 (2): 155–163. https://doi.org/10.1680/stbu.9.00103.
Wang, Z. Y. 2018. “Experimental tests and analysis of Glubam-concrete composite beams.” M.Eng. thesis, College of Civil Engineering, Univ. of Hunan.
Xiao, Y., L. Li, and R. Z. Yang. 2014. “Long-term loading behavior of a full-scale glubam bridge model.” J. Bridge Eng. 19 (9): 04014027. https://doi.org/10.1061/(ASCE)BE.1943-5592.0000600.
Xiao, Y., and J. Ma. 2012. “Fire simulation test and analysis of laminated bamboo frame building.” Constr. Build. Mater. 34: 257–266. https://doi.org/10.1016/j.conbuildmat.2012.02.077.
Xiao, Y., and B. Shan. 2013. Modern Bamboo Structures: Glubam. [In Chinese.]. Beijing: China Architecture & Building Press.
Xiao, Y., R. Z. Yang, and B. Shan. 2013. “Production, environmental impact and mechanical properties of glubam.” Constr. Build. Mater. 44 (Jul): 765–773. https://doi.org/10.1016/j.conbuildmat.2013.03.087.
Xiao, Y., Q. Zhou, and B. Shan. 2010. “Design and construction of modern bamboo bridges.” J. Bridge Eng. 15 (5): 533–541. https://doi.org/10.1061/(ASCE)BE.1943-5592.0000089.
Yang, R. Z., Y. Xiao, and F. Lam. 2014. “Failure analysis of typical glubam with bidirectional fibers by off-axis tension tests.” Constr. Build. Mater. 58 (May): 9–15. https://doi.org/10.1016/j.conbuildmat.2014.02.014.
Yeh, M. C., and Y. L. Lin. 2011. “Finger joint performance of structural laminated bamboo member.” J. Wood Sci. 58 (2): 120–127. https://doi.org/10.1007/s10086-011-1233-7.
Yeoh, D., M. Fragiacomo, and B. Deam. 2011a. “Experimental behavior of LVL-concrete composite floor beams at strength limit state.” Eng. Struct. 33 (9): 2697–2707. https://doi.org/10.1016/j.engstruct.2011.05.021.
Yeoh, D., M. Fragiacomo, M. D. Franceschi, and K. H. Boon. 2011b. “State of the art on timber-concrete composite structures: Literature review.” J. Struct. Eng. 137 (10): 1085–1095. https://doi.org/10.1061/(ASCE)ST.1943-541X.0000353.
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Published In
Journal of Structural Engineering
Volume 146 • Issue 3 • March 2020
Copyright
©2019 American Society of Civil Engineers.
History
Received: Jan 2, 2019
Accepted: Jun 24, 2019
Published online: Dec 20, 2019
Published in print: Mar 1, 2020
Discussion open until: May 20, 2020
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