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Civil-Comp Proceedings
ISSN 1759-3433
CCP: 56
ADVANCES IN CIVIL AND STRUCTURAL ENGINEERING COMPUTING FOR PRACTICE
Edited by: B.H.V. Topping
Paper IV.4

On the Finite Element Modelling of RHS Gap K-Joints: Parametric Analysis

T. Gavrielides, D. Vyzoviti, E.S. Mistakidis, C.C. Baniotopoulos and K. Thomopoulos

Institute for Steel Structures, Department of Civil Engineering, Aristotle University of Thessaloniki, Greece

Full Bibliographic Reference for this paper
T. Gavrielides, D. Vyzoviti, E.S. Mistakidis, C.C. Baniotopoulos, K. Thomopoulos, "On the Finite Element Modelling of RHS Gap K-Joints: Parametric Analysis", in B.H.V. Topping, (Editor), "Advances in Civil and Structural Engineering Computing for Practice", Civil-Comp Press, Edinburgh, UK, pp 105-116, 1998. doi:10.4203/ccp.56.4.4
Abstract
The behavior of rectangular hollow section (RHS) gap K-joints, and especially of square hollow section (SHS) ones under axial static loads is studied in this paper, focusing on the parameters that strongly influence their design strength and the crucial mode of failure. The analysis was carried out with the MARC finite element (F.E) program. Sixteen three dimensional F.E models were studied, concerning the stress and plastic strain distribution due to the gradual application of axial loads at the brace members. The parametric analysis is based on the variation of the chord width and wall thickness, against a constant brace width and wall thickness. The numerical simulation yielded the expected deformation shape and the load capacities were compared to the calculated design strength according to the EC3-Annex K, resulting in an acceptable differences between them.

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