پديدآورندگان :
Khari Mahdy mehdikhari@gmail.com Assistant Professor, Department of Civil Engineering East Tehran Branch,Islamic Azad University,
Tehran, Iran , Moayedi Hossein hossein.moayedi@gmail.com Assistant Professor, Department of Civil Engineering, Kermanshah University of Technology, Kermanshah,
Iran , Khari Majid majidkhary@gmail.com Master Student, Department of Civil Engineering Semnan Branch,Islamic Azad University, Semnan, Iran
كليدواژه :
Plasticity Index , Effective Confining Pressure , Equivalent Linear Method , Shear wave velocity , Shear Modulus.
چكيده فارسي :
Dynamic soil properties such as shear modulus and damping are the most prominent factors of amplification phenomenon during earthquakes. The shear modulus degradation and damping ratio curves have been developed based on the nonlinearity soil from hysteresis loops. Plasticity index and Effective confining pressure are governing factors that affect the nonlinearity soil behavior. In this paper, the shear modulus degradation and damping ratio curves were derived from the two cases. The first of them was based on only effective confining pressure, whereas the second case was based on plasticity index and effective confining pressure. The equivalent linear method was implemented for the site response analyses of these two models. The results of this study illustrated the influence of the plasticity index on the soil shear strength and the site response.
