Impact of Spatial Variation of Ground Motions on the Seismic Performance of a Bridge Structure

Dynamic analysis of a multi-span simply supported prestressed concrete bridge with restrainers and seismic isolation devices

“…Many previous works have been conducted to investigatethe fragility of highway bridges under uniform ground motions (Shinozuka et al, 2003;Desroche and Muthamar, 2004;Hong et al, 2019) and non uniform ground motions (Yang et al, 2018), they corroborated that the multispan simply supported MSSS prestressed concrete bridges are most vulnerable to pounding damage due to the discontinuity in the superstructure at multi-column bents. In particular, Hong et al (2019) investigated the effect of the nonlinear impact on the longitudinal response of multi-span simply supported bridges under strong earthquakes and they concluded that the collision parameters affect the responses of the multi-span simply supported beam bridge subjected to ground motions.…”

“…In particular, Hong et al (2019) investigated the effect of the nonlinear impact on the longitudinal response of multi-span simply supported bridges under strong earthquakes and they concluded that the collision parameters affect the responses of the multi-span simply supported beam bridge subjected to ground motions. Further researches by Bi et al (2013) and Yang et al (2018) have also studied extensively the impact of spatially varying ground motions on the seismic response of bridges when pounding was either considered or not considered.…”