Abstract
Several three-dimensional numerical simulations of beam-to-column welded joints in steel skeletal structures have been earlier performed, leading to a deep understanding of the joint mechanical behaviour up to failure. This in turn motivated the authors to develop a new concept of semi-rigid joint finite elements. The new element family considers the real dimensions of the joint and incorporates its different flexibility characteristics. It can be implemented into any general finite element (FE) code and assembled with any existing beam element. The new joint elements are presented in this paper along with numerical applications which show their efficiency and the influence of the joint real behaviour on the overall structural response.
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