Continuous rigid-frame bridges (CRFBs) have been widely constructed in high seismicity areas western China. To investigate the seismic response characteristics and whiplash effect mechanism of CRFBs under near-fault ground motions, a long-span CRFB with piers is selected as prototype bridge, nonlinear finite element model developed based on OpenSees. Three groups namely having forward-directivi...

Damage to devices installed in electric substations, which have shown vulnerable behaviour under strong earthquakes the last decades, may endanger power delivery emergency phases during and after an earthquake. Within seismic risk assessment of networks, definition fragility functions equipment is paramount. However, current literature availability such models for some specific substation compo...

Allowing structures to rock during an earthquake can effectively provide base isolation at a relatively small cost. Rocking limits the shear demand and provides self-centering, but rocking response depends on energy dissipation caused by interaction with soil impacts re-centering. This paper addresses computational modeling of buildings that have either been designed beneath their foundation (f...

In recent years, significant advancements have been made in the definition of innovative “minimal-damage structures,” chasing need for more resilient societies against extreme seismic events. this context, moment resisting frames (MRFs) equipped with self-centering damage-free (SCDF) devices column bases and beam-to-column joints represent a viable solution to improve structural resilience dama...

Small-scale, instructional shake tables, such as the UCIST shake table, are used at many colleges and universities to provide educational and research experiences in seismic behavior of structural systems. This paper describes the development of a physical model and associated educational materials that demonstrate the seismic behavior of shear walls used in cold-formed steel (CFS) building sys...

The study presents a numerical investigation on exterior reinforced concrete (RC) beam-column joints under seismic actions based macro-modelling approach proposed by the authors in recent paper. followed makes use of well-known “scissors model” where two nonlinear rotational springs arranged series were introduced to schematize shear behavior joint panel and, moreover, possible occurrence debon...