ABSTRACT

Paper aims at examining the seismic performance of steel moment resisting frame structures with rigid connections, facing together the serviceability and damage control issues. Firstly, with reference to the force-based approach, a review of seismic design procedures provided by the most up-to-dated international codes is reported and some improvements are proposed. Then, a wide numerical investigation is carried out by means of pushover analysis, which has been chosen as a tool for evaluating the seismic performance of the examined frame typologies. The outcomes allow the reliability of design procedures in terms of strength, stiffness as well as ductility requirements to be assessed.