Depth-dependent site factors with soil nonlinear effects

C. C. Tsai, T. Kishida

Research output: Contribution to conferencePaperpeer-review

1 Scopus citations

Abstract

Site factors are used to modify ground motions from a reference rock site to reflect the effects of geologic conditions. The average velocity of shear waves in the top 30 m of soil (Vs,30) is an important factor that reflects the amplification behavior of a site and is adopted as a parameter of site factor. However, with the increase in subsurface data and the corresponding site responses, recent studies have found that Vs,30 may not be sufficient to characterize a site for amplification behavior under the presence of deep soil deposits. Therefore, in addition to the typical site factors based on Vs,30 and ground motion intensity, depth-dependent correction factors were proposed by several researchers to consider the thickness of soil deposits. This paper systematically compares different recently proposed scaling factors to represent depth-dependent behavior and evaluates them through nonlinear and equivalent-linear site response analyses. Preliminary depth dependent site factors are recommended to reflect the effect of different sediment thicknesses in the design process.

Original languageBritish English
DOIs
StatePublished - 2014
Event10th U.S. National Conference on Earthquake Engineering: Frontiers of Earthquake Engineering, NCEE 2014 - Anchorage, United States
Duration: 21 Jul 201425 Jul 2014

Conference

Conference10th U.S. National Conference on Earthquake Engineering: Frontiers of Earthquake Engineering, NCEE 2014
Country/TerritoryUnited States
CityAnchorage
Period21/07/1425/07/14

Fingerprint

Dive into the research topics of 'Depth-dependent site factors with soil nonlinear effects'. Together they form a unique fingerprint.

Cite this