Identification of Nonlinear Site Response Using the H/V Spectral Ratio Method

Wen, Kuo‐Liang; Chang, Tzu-Heng; Lin, Ching-Yang; Chiang, Hsien-Jen

doi:10.3319/tao.2006.17.3.533(t)

Cited by 41 publications

(33 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The effects of soil nonlinearity on observed ground motions at free-surface have also been reported [6,[16][17][18]. For example, Wen and others [17] and Nagashima and others [18] showed the effects of soil nonlinearity on the horizontal-to-vertical spectral ratio (HVSR) of the observed ground motions.…”

Section: Introductionmentioning

confidence: 88%

See 1 more Smart Citation

Nonlinear site response from the strong ground-motion recordings in western China

Rong

Wang

Woolery

et al. 2016

Soil Dynamics and Earthquake Engineering

View full text Add to dashboard Cite

Section: Introductionmentioning

confidence: 88%

“…For example, Wen and others [17] and Nagashima and others [18] showed the effects of soil nonlinearity on the horizontal-to-vertical spectral ratio (HVSR) of the observed ground motions. Even quantitative simulation of waveforms based on strong and weak motions has been studied by some researchers [19,20].…”

Section: Introductionmentioning

confidence: 97%

Nonlinear site response from the strong ground-motion recordings in western China

Rong

Wang

Woolery

et al. 2016

Soil Dynamics and Earthquake Engineering

View full text Add to dashboard Cite

“…They pointed out that the nonlinear character of the response appeared for at least 3 h after the main shock even for weak motions (∼20 cm/s 2 ); that is, the permanence in the liquefaction state. Wen et al (2006) applied the S-H/V ratio technique to the same data used in Aguirre and Irikura (1997) and obtained consistent results.…”

Section: Nonlinear Site Effectmentioning

confidence: 61%

“…The S-H/V ratio is useful for detecting the nonlinear site effect, because it needs no reference site. In practice, Wen et al (2006) proposed a technique for identifying the nonlinear site response using the S-H/V ratio of surface records at a single station. They demonstrated that the S-H/V ratio for strong motion data with the nonlinear response, which has been identified using vertical array data, shows the dominant period shift to longer period and the lower ratio level at short periods in comparison with the S-H/V ratio for weak motion data with the linear response.…”

Section: Nonlinear Site Effectmentioning

confidence: 99%

Strong ground motions from an Mj 6.1 inland crustal earthquake in Hokkaido, Japan: the 2004 Rumoi earthquake

Maeda

Sasatani

2009

Earth Planet Sp

View full text Add to dashboard Cite

An inland crustal earthquake (M j 6.1) occurred on December 14, 2004 in the northern part of Hokkaido, Japan. A large ground acceleration of 1127 cm/s 2 and a large pseudo-velocity response of over 100 cm/s were recorded at the nearest strong-motion station, HKD020, about 10 km from the hypocenter. This large ground motion is considered to be attributable to the source effect and the site effect. The site effect is investigated using the traditional spectral ratio technique and the theoretical evaluation based on the subsurface structure model. The results imply that the site effect has an insignificant effect on the large ground motion at HKD020. The source effect is investigated by constructing the source model that explains the broad-band strong-motion records at four stations around the epicenter using the empirical Green's function method. The estimated source model satisfies the empirical relationship between the strong motion generation areas and the seismic moment for inland crustal earthquakes. The high-frequency level of the acceleration source spectrum is also consistent with the empirical relationship. These results suggest that this earthquake is a normal crustal event and that the large ground motion at HKD020 is mainly attributable to the source effect, short distance from the strong motion generation area and the forward directivity effect. Finally, the temporal change of the site response at HKD020 is examined using long duration records including the main shock and several aftershocks. The site response based on the S-wave horizontal-to-vertical spectral ratio method shows the nonlinearity for the main shock and an aftershock occurring about 20 s after the main shock. However, the site response shows linearity for other later aftershocks. This site response change is attributed to the difference in ground motion amplitude.

show abstract

“…Lachet and Bard (1994) and Dravinski et al (1996) also showed through theoretical study that the horizontal-to-vertical (H/V) spectral ratio can show the dominant frequency at a site. Wen et al (2006) used the H/V spectral ratio to identify nonlinear soil response. Figure 7 plots the H/V spectral ratio of these events.…”

Section: Frequency Domain Analysismentioning

confidence: 99%

Effect of Surface Geology on Ground Motions: The Case of Station TAP056 - Chutzuhu Site

Wen¹,

Lin²,

Chiang³

et al. 2008

Terr. Atmos. Ocean. Sci.

Self Cite

View full text Add to dashboard Cite

In the Tatun mountain area of northern Taiwan are two strong motion stations approximately 2.5 km apart, TAP056 and TAP066 of the TSMIP network. The accelerometer at station TAP056 is often triggered by earthquakes, but that at TAP066 station is not. Comparisons of vertical and horizontal peak ground accelerations reveal PGA in the vertical, east-west, and north-south components at TAP056 station to be 3.89, 7.57, and 5.45 times those at station TAP066, respectively. The PGA ratio does not seem to be related to earthquake source or path. Fourier spectra of earthquake records at station TAP056 always have approximately the same dominant frequency; however, those at station TAP066 are different due to different sources and paths of different events. This shows that spectra at TAP056 station are mainly controlled by local site effects. The spectral ratios of TAP056/TAP066 show the S-wave is amplified at around 8~10 Hz. The horizontal/vertical spectral ratios of station TAP056 also show a dominant frequency at about 6 and 8~10 Hz. After dense microtremor surveying and the addition of one accelerometer just 20 meters away from the original observation station, we can confirm that the top soft soil layer upon which the observation station is constructed generates the local site response at station TAP056.

show abstract

Identification of Nonlinear Site Response Using the H/V Spectral Ratio Method

Cited by 41 publications

References 18 publications

Nonlinear site response from the strong ground-motion recordings in western China

Nonlinear site response from the strong ground-motion recordings in western China

Strong ground motions from an Mj 6.1 inland crustal earthquake in Hokkaido, Japan: the 2004 Rumoi earthquake

Effect of Surface Geology on Ground Motions: The Case of Station TAP056 - Chutzuhu Site

Contact Info

Product

Resources

About