[en] Structural elements of building have to meet a multitude of requirements. Besides the static load bearing capacity, common
requirements are the structural integrity and efficiency during the construction stage and sufficient fire resistance. Within the French
CIFRE research project COMINO, an innovative type of composite beam was developed for buildings beams with a span of 6 -12m,
which need fire resistance until 2 hours with no additional supports at construction stage.
The developed solution is composed of a steel U-section acting as a formwork in construction stage for a reinforced concrete part
that provides the fire resistance. In the exploitation stage, the steel and the reinforced concrete are acting together as a composite
beam. In construction stage, when the concrete is not hardened and thus the stabilizing effect is not present, the steel beam, is subjected
to Lateral-Torsional Buckling. In order to investigate the structural behaviour of the new developed steel section in construction stage,
a single full-scale test has been carried out at the Laboratory of Structural Engineering of the University of Luxembourg. This article
focuses on the stability of the steel beam made of thin-walled steel parts without considering any stabilizing effect. The test results
are then compared to the results of numerical investigations and to the analytical solutions of EN 1993.
Disciplines :
Civil engineering
Author, co-author :
Turetta, Maxime; University of Luxembourg > Faculty of Science, Technology and Medicine (FSTM) > Department of Engineering
ODENBREIT, Christoph ; University of Luxembourg > Faculty of Science, Technology and Medicine (FSTM) > Department of Engineering (DoE)
Khelil, Abdelouahab; Université de Lorraine
Martin, Pierre-Olivier; CTICM – Centre Technique Industriel de la Construction Métallique
External co-authors :
yes
Language :
English
Title :
Investigations on the lateral-torsional buckling of an innovative U-shaped steel beam in construction stage of composite beam. (LAJ22.B)
scite shows how a scientific paper has been cited by providing the context of the citation, a classification describing whether it supports, mentions, or contrasts the cited claim, and a label indicating in which section the citation was made.
Bibliography
D. J. Oehlers, « Composite Profiled Beams », Journal of Structural Engineering 119 (4), 1993, https://ascelibrary.org/doi/abs/10.1061/%28ASCE%290733-9445%281993%29119%3A4%281085%29.
B. Uy, M. A. Bradford, « Ductility of Profiled Composite Beams. Part I: Experimental Study », Journal of Structural Engineering 121 (5), 1995, https://ascelibrary.org/doi/abs/10.1061/%28ASCE%290733-9445%281995%29121%3A5%28876%29.
B. Uy, M. A. Bradford, « Ductility of Profiled Composite Beams. Part II: Analytical Study », Journal of Structural Engineering 121 (5), 1995, https://ascelibrary.org/doi/abs/10.1061/%28ASCE%290733-9445%281995%29121%3A5%28883%29.
Liu, Y., Guo, L., Qu, B., Zhang, S., Experimental investigation on the flexural behavior of steel-concrete composite beams with U-shaped steel girders and angle connectors. Eng Struct, 131, 2017 http://www.sciencedirect.com/science/article/pii/S0141029616309853.
Keo, P., Lepourry, C., Somja, H., Palas, F., Behavior of a new shear connector for U-shaped steel-concrete hybrid beams. J Constr Steel Res, 145, 2018 http://www.sciencedirect.com/science/article/pii/S0143974X17310039.
Chen, L.-H., Li, S.-T., Zhang, H.-Y., Wu, X.-F., Experimental study on mechanical performance of checkered steel-encased concrete composite beam. J Constr Steel Res, 143, 2018 http://www.sciencedirect.com/science/article/pii/S0143974X16305041.
Zhou, X., Zhao, Y., Liu, J., Chen, Y.F., Yang, Y., Bending experiment on a novel configuration of cold-formed U-shaped steel-concrete composite beams. Eng Struct, 180, 2019 http://www.sciencedirect.com/science/article/pii/S0141029618315621.
D. J. Oehlers, M. A. Bradford, « 17 – Composite Profiled Beams », Pergamon, Oxford, 1995, http://www.sciencedirect.com/science/article/pii/B9780080419190500235.
de Carvalho, A.S., Rossi, A., Martins, C.H., Assessment of lateral–torsional buckling in steel I-beams with sinusoidal web openings. Thin-Walled Structures, 175, 2022, 109242.
Chunyan Quan, Merih Kucukler, Leroy Gardner. Out-of-plane stability design of steel beams by second-order inelastic analysis with strain limits.
Kang, L., Meng, L., Lin, Y., Experimental and numerical investigation of lateral torsional buckling behavior and capacity of welded Q460 beams. J Constr Steel Res, 172, 2020, 106166.
Rossi, A., Hideyuki Saito, D., Humberto Martins, C., Sander Clemente de Souza, A., The influence of structural imperfections on the LTB strength of I-beams. Structures 29 (2021), 1173–1186.
Kitipornchai, S., Trahair, N.S., Elastic Behavior of Tapered Monosymmetric I-Beams Under Moment Gradient. Journal of the Structural Division, ASCE 101:8 (1975), 1661–1678.
Pi, Y. L., and Trahair, N. S. Prebuckling. Deflections and Lateral Buckling. I: Theory. Journal of Structural Engineering, ASCE, 1992; 118(11), 2949-2966.
Larue, B., Khelil, A., Gueury, M., Elastic flexural-torsional buckling of steel beams with rigid and continuous lateral restraint. J Constr Steel Res 63 (2007), 692–708.
Larue, B., Khelil, A., Gueury, M., Evaluation of the lateral-torsional buckling of an I beam section continuously restrained along a flange by studying the buckling of an isolated equivalent profile. Thin-Walled Structures 45 (2007), 77–95.
EN 1993-1-1, « Eurocode 3: Design of steel structures, Part 1-1: General rules and rules for buildings », European Committee for Standardization (CEN), 2005.
EN 1993-1-3, « Eurocode 3: Design of steel structures, Part 1-3: General rules – Supplementary rules for cold-formed members and sheeting », European Committee for Standardization (CEN), 2007.
EN ISO 6892-1, « Metallic materials – Tensile testing – Part 1 : Method of test at room temperature », International Organization for Standardization (ISO), 2016.
EN 10025-2, « Hot rolled products of structural steels – Part 2 : Technical delivery conditions for non-alloy structural steels », European Committee for Standardization (CEN), 2005.
EN 1993-1-5, « Eurocode 3: Design of steel structures, Part 1-5: Plated structural elements », European Committee for Standardization (CEN), 2007.
Yang, B., Kang, S.-B., Xiong, G., Nie, S., Hu, Y., Wang, S., et al. Experimental and numerical study on lateral-torsional buckling of singly symmetric Q460GJ steel I-shaped beams. Thin-Walled Structures, 113, 2017 http://www.sciencedirect.com/science/article/pii/S0263823116303883.
ANSYS, Mechanical APDL, « Theory Reference » 2017.
ECCS-TC8, « Rules for Member Stability in EN 1993-1-1 – Background documentation and design guidelines », European Convention for Constructional Steelwork (ECCS) – TC8, 2006.
A. Beyer, Y. Galéa, T. Nguyen, « Déversement élastique des barres fléchies comprimées – Fondement théorique et validation du logiciel LTBeamN », Revue Construction Métallique 3, 2015.
V. de Ville de Goyet, « L'analyse statique non linéaire par la méthode des éléments finis des structures spatiales formées de poutres à section non symétrique », Ph.D. thesis, Université de Liège, 1989.
Beyer, A., Boissonnade, N., Khelil, A., Bureau, A., Elastic stability of U-shaped members in bending considering pre-buckling displacements. J Constr Steel Res, 135, 2017 http://www.sciencedirect.com/science/article/pii/S0143974X16303534.
ECCS-TC8, « Ultimate limit state calculation of sway frames with rigid joints », European Convention for Constructional Steelwork (ECCS) – TC8, 1984.
Beyer, A., Boissonnade, N., Khelil, A., Bureau, A., Influence of assumed geometric and material imperfections on the numerically determined ultimate resistance of hot-rolled U-shaped steel members. J Constr Steel Res, 147, 2018 http://www.sciencedirect.com/science/article/pii/S0143974X17313810.
