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R.M.M.P. Matos¹, L.F. Costa Neves², L.R.O. de Lima³, P.C.G. da S. Vellasco³ and J.G. Santos da Silva³

¹ISISE, Civil Engineering Department, University of Coimbra, Portugal
²INNESC, Civil Engineering Department, University of Coimbra, Portugal
³Structural Engineering Department, State University of Rio de Janeiro, Brazil

doi:10.4203/ccp.106.19

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R.M.M.P. Matos, L.F. Costa Neves, L.R.O. de Lima, P.C.G. da S. Vellasco, J.G. Santos da Silva, "Stiffness of RHS "T" Joints under Combined Brace Bending and Axial Loading", in , (Editors), "Proceedings of the Twelfth International Conference on Computational Structures Technology", Civil-Comp Press, Stirlingshire, UK, Paper 19, 2014. doi:10.4203/ccp.106.19

Keywords: hollow section joints, bending moment, elastic stiffness, membrane stiffness..

Summary

The behaviour of the connections play a key role on the behaviour and design of tubular sections and consequently its research has been a quite popular topic during recent years. This research activity has been accompanied by the popularity of the use of tubular structures.

This paper presents a numerical study focusing on the behaviour of SHS "T-joints" under combined loading, including axial forces and bending moments. These connections present a moment-rotation curve with an initial stiffness followed by membrane stiffness after yielding. The yielding point of the connection being quite unclear as a result of the smooth transition between the elastic and plastic zones in the curves. Therefore the establishment of a limit state may be based upon deformation criteria.

An evaluation of the elastic or initial stiffness, as well as the post elastic (membrane) stiffness for different RHS joint geometries and for different load combinations of brace bending and axial forces in the brace and chord are presented and discussed in this paper. A comparative assessment of these properties is discussed, aimed at establishing some conclusions about the variation of these properties with the parameters considered.

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Front Page Browse CCP CSETS CTR IJRT Other Authors Search Purchase Guide FAQ Contact us	Civil-Comp Proceedings ISSN 1759-3433 CCP: 106 PROCEEDINGS OF THE TWELFTH INTERNATIONAL CONFERENCE ON COMPUTATIONAL STRUCTURES TECHNOLOGY Edited by: Paper 19 Stiffness of RHS "T" Joints under Combined Brace Bending and Axial Loading R.M.M.P. Matos¹, L.F. Costa Neves², L.R.O. de Lima³, P.C.G. da S. Vellasco³ and J.G. Santos da Silva³ ¹ISISE, Civil Engineering Department, University of Coimbra, Portugal ²INNESC, Civil Engineering Department, University of Coimbra, Portugal ³Structural Engineering Department, State University of Rio de Janeiro, Brazil doi:10.4203/ccp.106.19 purchase the full-text of this paper Full Bibliographic Reference for this paper R.M.M.P. Matos, L.F. Costa Neves, L.R.O. de Lima, P.C.G. da S. Vellasco, J.G. Santos da Silva, "Stiffness of RHS "T" Joints under Combined Brace Bending and Axial Loading", in , (Editors), "Proceedings of the Twelfth International Conference on Computational Structures Technology", Civil-Comp Press, Stirlingshire, UK, Paper 19, 2014. doi:10.4203/ccp.106.19 Keywords: hollow section joints, bending moment, elastic stiffness, membrane stiffness.. Summary The behaviour of the connections play a key role on the behaviour and design of tubular sections and consequently its research has been a quite popular topic during recent years. This research activity has been accompanied by the popularity of the use of tubular structures. This paper presents a numerical study focusing on the behaviour of SHS "T-joints" under combined loading, including axial forces and bending moments. These connections present a moment-rotation curve with an initial stiffness followed by membrane stiffness after yielding. The yielding point of the connection being quite unclear as a result of the smooth transition between the elastic and plastic zones in the curves. Therefore the establishment of a limit state may be based upon deformation criteria. An evaluation of the elastic or initial stiffness, as well as the post elastic (membrane) stiffness for different RHS joint geometries and for different load combinations of brace bending and axial forces in the brace and chord are presented and discussed in this paper. A comparative assessment of these properties is discussed, aimed at establishing some conclusions about the variation of these properties with the parameters considered. purchase the full-text of this paper (price £20) go to the previous paper go to the next paper return to the table of contents return to the book description purchase this book (price £65 +P&P)
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