In the last two decades, increasing efforts have been devoted to the definition of innovative seismic design philosophies, with the aim of reducing direct and indirect costs deriving from the occurrence of destructive seismic events. Among others, beam-to-column connections equipped with friction devices have emerged as an effective solution able to dissipate the seismic input energy, while also ensuring the damage-free behaviour within steel Moment Resisting Frames (MRFs). Additionally, recent extensive numerical studies have demonstrated the benefits deriving from the replacement of conventional full-strength column bases (CBs) with innovative damage-free self-centring CBs, in reducing the residual storey drifts and in preventing the first-storey columns' yielding of low-rise MRFs. This work introduces the preliminary study of an experimental campaign which has been planned on a one-bay two-storey large-scale MRF, equipped with the proposed damage-free self-centring CBs. The present study has the objective to foresee the response that will be observed during the experimental test by advanced numerical simulations in OpenSees.
Numerical Simulations of a Two-Storey Steel Moment Resisting Frame With Free from Damage Beam-to-Column Connections and Self-Centering Column Bases
Elettore E.;Latour M.;Rizzano G.
2023-01-01
Abstract
In the last two decades, increasing efforts have been devoted to the definition of innovative seismic design philosophies, with the aim of reducing direct and indirect costs deriving from the occurrence of destructive seismic events. Among others, beam-to-column connections equipped with friction devices have emerged as an effective solution able to dissipate the seismic input energy, while also ensuring the damage-free behaviour within steel Moment Resisting Frames (MRFs). Additionally, recent extensive numerical studies have demonstrated the benefits deriving from the replacement of conventional full-strength column bases (CBs) with innovative damage-free self-centring CBs, in reducing the residual storey drifts and in preventing the first-storey columns' yielding of low-rise MRFs. This work introduces the preliminary study of an experimental campaign which has been planned on a one-bay two-storey large-scale MRF, equipped with the proposed damage-free self-centring CBs. The present study has the objective to foresee the response that will be observed during the experimental test by advanced numerical simulations in OpenSees.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
