Issue 62

F. Slimani et alii, Frattura ed Integrità Strutturale, 62 (2022) 107-125; DOI: 10.3221/IGF-ESIS.62.08

Experimental and numerical investigation of gap K-joints of rectangular hollow section trusses

Faycal Slimani Civil Engineering Laboratory, Badji Mokhtar- Annaba University, P. O. Box 12, 23000 Annaba, Algeria faycal.slimani@univ-annaba.dz;slimani_faycal@yahoo.fr Mohammed Benzerara Materials, Geomaterials and Environment Laboratory, Department of Civil Engineering, Badji Mokhtar- Annaba University, P. O. Box 12, 23000 Annaba, Algeria Civil Engineering Laboratory, Badji Mokhtar- Annaba University, P. O. Box 12, 23000 Annaba, Algeria mohammed.benzerara@univ-annaba.dz;mohammed.benzerara@yahoo.com Messaoud Saidani Faculty of Engineering and Computing, Coventry University, Priory Street,Coventry CV1 5FB, UK m.saidani@coventry.ac.uk

A BSTRACT . This paper is concerned with investigating the plastic behavior of gap K-joints of truss girders, made from thin-walled rectangular hollow section members. The novelty of the method is that it offers a rigorous numerical model that may be generalized to cover similar joints with different parameters to the one covered in this study. An experimental study was carried out on a full-scale girder under concentrated load on two central nodes. A numerical analysis was carried out using ABAQUS to investigate the behavior of this type of joints and comparison is made with the experimental results. The study aims to examine and define the analytical model for this type of joints. The results obtained show that sections with chord/brace thickness ratio (t 0 /t 1 )=1 exhibit a different behavior compared to sections with (t 0 /t 1 )>1. From this study, it was possible to obtain the modes of failure of such sections followed by a comparative study on the determination of the joint capacity using Eurocode 3 and CIDECT. K EYWORDS . Rectangular hollow section; Gap joint; Lattice girder; Plasticity; Finite element modeling.

Citation: Slimani, F., Benzerara, M., Saidani, M., Experimental and numerical investigation of gap K-joints of rectangular hollow section trusses, Frattura ed Integrità Strutturale, xx (2022) 107-125.

Received: 09.04.2022 Accepted: 01.08.2022 Online first: 10.08.2022 Published: 01.10.2022

Copyright: © 2022 This is an open access article under the terms of the CC-BY 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

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