Investigation of seismic displacement of nailed wall under near field earthquakes using hardening soil with small strain behavioral model

In this study, the effect of pulse like and non-pulsed near field records on the displacement and axial force of the nail in the soil nail wall has been investigated. Pulse liked records are created under physical factors such as the effect of Forward directivity, Fling Step, the effect Hanging wall, etc., A pulse has a large amplitude with medium to long period, which contains most of the energy due to fault rupture. It has been used to investigate the effects of near-field records by the finite element method and by using the HSS behavioral model due to considering the effect of small strains and hysteresis damping. In this research, Song and Rodrigues seismic bank in 2015 including 62 pulsed and non-pulsed near field records has been used. The obtained results showed that the soil nailed walls have good performance against seismic loads. pulsed records have a direct effect on the axial force and displacement of the nailed wall, also the axial force of the nails and displacements in the pulsed records have a good correlation with the PGV (peak ground velocity) parameter, the axial force of the nails in the non-pulsed records with the parameter It had Ia (Arias intensity) and non-pulse displacement with seismic parameter PGV.