Effect of spatial variability of seismic strong motions on long regular and irregular slab-girder RC bridges

摘要: Long bridges and other lifeline systems are particularly susceptible to the spatial variability of earthquake actions. Even though it is a matter that has been substantially studied in past decades, there still plenty issues with engineering application variability. One difficulties generating displacement time-histories zero initial small residual values. This essential obtain results have good quality terms pseudo-static effects. Another difficulty uncertainty associated simulation seismic ground motions applications (Zerva et al. in: 16th European conference on engineering, Thessaloniki, 2018). In this study, conditional method for spatially variable used respective generated. These then applied perform analysis set long irregular RC bridges, different irregularity layouts total lengths. The goal study ascertain impact behaviour these structures, according their length, coherency model strong comparing case without relative importance between dynamic effects also ascertained each case-study. Finally, definition cases whom more detrimental than those uniform motions.