Akademik Veri Yönetim Sistemi
El-Cezeri Journal of Science and Engineering, cilt.9, sa.2, ss.507-521, 2022 (Scopus)
© 2022, TUBITAK. All rights reserved.The earthquake response of structures can alter due to the interactions between the linked subsystems; soil, foundation and structure. Generally, the foundation is assumed as a part of the structure and the related interaction is then called as soil-structure interaction (SSI). In contrast to approach of rigid (fixed) foundation, SSI comprises factors such as flexible soil-foundation system, foundation damping and filtering the ground motion transmitted to the structure. The period elongation and the increase in the damping ratio of the overall system due to the flexible soil-foundation system and the foundation damping, respectively, are referred as the inertial interaction effects. On the other hand, the difference between the free-field ground motion and the foundation input motion is stated as the kinematic interaction effect. The aim of this study is to determine the period elongation due to the flexible soil-foundation system for buildings with different structural systems resting on soils with different local soil classes. Seismic design parameters related to the period such as spectral acceleration and displacement, base shear force and top displacement are also determined. Seismic parameters obtained with SSI approach point out that the effects of SSI becomes more significant for rigid buildings on weak soils.