Nonlinear Analysis of Steel-Concrete Composite Structures: State-of-the-art

This paper presents the current state-of-the-art of nonlinear analysis of steel-concrete composite structures. The focus is on frame elements, which are computationally faster than continuum finite element models. First, section models are presented, with a review of resultant and fiber models and a discussion on possible practical applications. The presentation of frame elements follows. Models with lumped and distributed inelasticity, as well models with perfect and partial connection are covered. Rigid and partially restrained joints are then reviewed and discussed at length. A discussion on the analysis of structural walls completes the presentation of the models. Modeling applications to the analysis of composite frames are also presented. This state of the art review focuses on the recent developments that have stemmed from the recently completed National Science Foundation sponsored US-Japan program on Composite and Hybrid Structures