ABSTRACT

A procedure for the design of tied braced frames is presented, aiming at favouring the structural collapse by global mechanisms in correspondence of a desired value of the peak ground acceleration. The procedure is applied to a twelve story tied eccentrically braced frame also at the aim of highlighting the good behaviour of such typology with respect to an analogous traditional eccentrically braced frame, which in the past have shown quite poor seismic behaviour. The procedure is very simple and governed by some behavioural hypotheses which find good agreement in the analysis of the numerical results.