Nonlinear soil behavior in sediments remains one of the most relevant and challenging aspects in site characterization. Geotechnical engineers began studying soil changes in the shear modulus and damping ratio with increasing strain amplitude in the late 1960s and early 1970s (e.g., Seed and Idriss, 1969; Hardin and Drnevich, 1972). However, the influence of soil nonlinearities on the ground motion, in places other than those involving liquefaction, was not fully accepted by seismologists until observations made after the 1989 Loma Prieta and 1994 Northridge earthquakes, and from monitoring projects such as the SMART1 and SMART2 arrays in Taiwan...

First Page Preview

First page PDF preview
You do not currently have access to this article.