Please use this identifier to cite or link to this item: http://hdl.handle.net/11547/761
 Title: Soil structure interaction effects on structural parameters for stiffness degrading systems built on soft soil sites” Structural Engineering and Mechanics Authors: ESER AYDEMİR, Müberra Keywords: soft soil sites Issue Date: 2013 Publisher: Structural Engineering and Mechanics, Citation: 45:(5), 655-676, (2013). Abstract: In this study, strength reduction factors and inelastic displacement ratios are investigated for SDOF systems with period range of 0.1-3.0 s considering soil structure interaction for earthquake motions recorded on soft soil. The effect of stiffness degradation on strength reduction factors and inelastic displacement ratios is investigated. The modified-Clough model is used to represent structures that exhibit significant stiffness degradation when subjected to reverse cyclic loading and the elastoplastic model is used to represent non-degrading structures. The effect of negative strain - hardening on the inelastic displacement and strength of structures is also investigated. Soil structure interacting systems are modeled and analyzed with effective period, effective damping and effective ductility values differing from fixed-base case. For inelastic time history analyses, Newmark method for step by step time integration was adapted in an in-house computer program. New equations are proposed for strength reduction factor and inelastic displacement ratio of interacting system as a function of structural period($\tilde{T}$, T) ductility (${\mu}$) and period lengthening ratio ($\tilde{T}$/T). URI: http://hdl.handle.net/11547/761 Appears in Collections: İNŞAAT MÜHENDİSLİĞİ --- CIVIL ENGINEERING

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