Nonlinear Site Response Inferred from Downhole Strong Seismic Motion Data

Presenter: Chi-Hsuan Chung

Date: 2016/11/03

Abstract

There are many studies have indicated that nonlinear soil response will occur when strong ground motion wave shook surface soft soil layers. The nonlinear soil response has been a long controversial subject in seismology and earthquake engineering. A main obstacle to identifying this effect is that observed spectra are contaminated by source and path spectral contributions. In order to reduce the source and path effects, the horizontal-to- vertical (H/V) spectral ratio of a single surface station has become increasingly popular in studies of site effect. In this study, the horizontal-to- vertical spectral ratio method was applied to weak and strong motion records from the same dataset which used from Wen et al.1995.

 

Reference

KUO-LIANG WEN,* IGOR A. BERESNEV' AND YEONG TEIN YEH*, “INVESTIGATION OF NON-LINEAR SITE AMPLIFICATION AT TWO DOWNHOLE STRONG GROUND MOTION ARRAYS IN TAIWAN”, EARTHQUAKE ENGINEERING AND STRUCTURAL DYNAMICS, VOL. 24, 313-324 (1995)

Kuo-Liang Wen1,2,*, Tao-Ming Chang 2 , Che-Min Lin1, and Hsien-Jen Chiang1, “Identification of Nonlinear Site Response Using the H/V Spectral Ratio Method”, Terr. Atmos. Ocean. Sci., Vol. 17, No. 3, 533- 546, September 2006