Vol. 18, No. 3, pp. 679-686 (2022)
CHARACTERISATION OF THE BEHAVIOUR OF BEAM-TO-COLUMN STEEL JOINTS UP TO FAILURE
Tudor Golea *, Jean-Pierre Jaspart and Jean-François Demonceau
Urban and Environmental Engineering, University of Liège, Liège, Belgium
*(Corresponding author: E-mail:This email address is being protected from spambots. You need JavaScript enabled to view it.)
Received: 7 June 2021; Revised: 24 January 2022; Accepted: 31 January 2022
DOI:10.18057/IJASC.2022.18.3.5
 View Article |
Export Citation: Plain Text | RIS | Endnote |
ABSTRACT
The design of steel joints is currently dealt with in Eurocode 3 through the well-known “component method”. In particular, Part 1-8 of this standard provides guidance on how to apply the method to a wide range of joint configurations allowing to assess the latter’s initial rotational stiffness and resistance. Nonetheless, whenever a global structural plastic analysis is contemplated, provisions of Eurocode 3 are insufficient since no clear guidance on how to determine the ultimate resistance and the ultimate rotation capacity of joints is provided. In this paper, the full-range behaviour of beam-to-column steel joints is investigated using experimental, analytical, and numerical methods. A new analytical approach based on the component method is proposed and validated against five physical experiments. Through additional analytical expressions for the characterisation of basic components of steel joints, the proposed approach extends the applicability of the component method such that strain-hardening and ductility of components are accounted for. The results show a good agreement between the analytical prediction and the experimental results and also highlight specific limitations of the classical component method. Three-dimensional finite element (FE) models are also employed to simulate the behaviour of the tested beam-to-column joints. The results prove the accuracy of numerical models to simulate the non-linear response of steel joints emphasizing, however, the importance of proper modelling assumptions.
KEYWORDS
Steel joints, Experimental tests, Component method, Finite element analysis, Steel structures
REFERENCES
[1] Jaspart J.-P., “Etude de la semi-rigidité des noeuds poutre-colonne et son influence sur la résistance et la stabilité des ossatures en acier”, PhD Thesis, University of Liège, Liège, Belgium, 1991.
[2] Jaspart J.-P. and Weynand K., Design of joints in steel and composite structures, ECCS Eurocode Design Manual, Wiley, Ernst & Sohn, 2016.
[3] Da Silva L. S., “Towards a consistent design approach for steel joints under generalized loading”, Journal of Constructional Steel Research, vol. 64, no. 9, 1059–1075, 2008.
[4] EN 1993-1-8, Eurocode 3 - Design of steel structures - Part 1-8: Design of joints, Brussels: European Committee for Standardisation, 2005.
[5] Francavilla B. A., Latour M., Rizzano G., Jaspart J.-P. and Demonceau J.-F., “On the robustness of earthquake-resistant moment-resistant frames: influence of innovative beam-to-column joints”, Open Construction and Building Technology Journal, vol. 12, 2018
[6] Kuhlmann U., Jaspart J. P., Vassart O., Weynand K. and Zandonini R., “Robust structures by joint ductility”, RFCS Publishable Report, 2008.
[7] Demonceau J.-F. and Jaspart J.-P., “Experimental test simulating a column loss in a composite frame”, Advanced Steel Construction, vol. 6, no. 3, 891–913, 2010.
[8] Jaspart J.-P., Corman A. and Demonceau J.-F., “Ductility assessment of structural steel and composite joints”, 2019.
[9] Kuhlmann U. et al., Robust impact design of stel and composite building structures (RobustImpact), European Commission, 2017.
[10] Demonceau J.-F., Vanvinckenroye H., D’Antimo M., Denoël V. and Jaspart J.-P., “Beam-to-column joints, column bases and joint components under impact loading”, ce/papers, vol. 1, no. 2–3, 3890–3899, 2017.
[11] Hoffmann N. et al., “RobustImapct: Deliverable D.5a. Detailed results of the experimental tests”, 2016.
[12] Golea T., “Behaviour of steel joints under dynamic actions”, Master Thesis, University of Liège, Liège, Belgium, 2020.
[13] Dassault Systèmes, “ABAQUS”, 2016.
[14] Demonceau J.-F., “Steel and composite building frames: sway response under conventional loading and developmet of membrane effects in beams further to an exceptional action”, PhD Thesis, University of Liège, Liège, Belgium, 2008.