Abstract:
This study presents a refined parametric three-dimensional (3D) analysis approach for partially-restrained (PR) bolted steel beam-column connections. The models developed explicitly incorporate the effects of slip using a general contact scheme and utilize non-linear 3D continuum elements for all connection components. A verified method for applying bolt pretension is introduced. The research parametrically investigates the influence of several geometrical and material parameters on the overall moment-rotation response of two distinct connection configurations under static loading. The proposed 3D modeling approach demonstrates excellent prediction capabilities when compared with experimental results and offers a general framework for accurate modeling and parametric studies of various PR connection types, highlighting the pronounced effects of slip and friction in connections with stiffer elements.
