INFLUENCE OF INPUT MOTION SCALING METHODS ON DECOUPLED SSI DYNAMIC ANALYSIS

Propagation of seismic waves through soil deposits may considerably alter theircharacteristics at surface. This ultimately influences the performance structures.The are included in codes (e.g. Eurocode 8, EC8) by meansof proposed design response spectra for different classes used or retrofittingof structures. Nevertheless, a smooth spectrum cannot always representspectral an actual input motion over engineering period interest due toits irregular spectral shape. Subsequently, structure beinsufficient when is used. The interaction between andstructure also affect structural behaviour. study aims to demonstrate theimpact adoption motions and with B, C D on theseismic behaviour one-bay, 1-storey modelled OpenSEES For this purpose,two approaches chosen; (i) seven recorded ground surfaceare modified applied model, (ii) outcrop scaled according toEC8 processed ideal conducting nonlinear site responseanalysis, then model. results indicate that model exposed moredrift responses it softer deposit. In addition, imposing motionsobtained surface from analysis cause higher drift thandirectly applying motions.