Abstract
Because vertical seismic motion of the Hyogoken-nanbu (1995) and Niigataken-chuetsu (2004) earthquake was very powerful, it could be important to estimate the influence of structural damage on the investigated system by vertical seismic motion. However, the effects aren't considered sufficiently into account the design standard of embankments. So, in this study, we proposed the modified Newmark method with consideration of vertical seismic motion and carried out parametric study by adopting a lot of strong horizontal and vertical ground motions.
This paper shows that as for the earthquake whose epicentral distance is comparatively short, seismic permanent displacement of embankments becomes large by taking account of vertical seismic motion.
