The Effect of Site Condition on Ground Motion in Gansu Province during the Wenchun Ms8.0 Earthquake

Zhi Jian Wu; Lan Min Wang; Ping Wang; Hang Shi; Tuo Chen

doi:10.4028/www.scientific.net/AMR.594-597.1658

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 594-597The Effect of Site Condition on Ground Motion in...

The Effect of Site Condition on Ground Motion in Gansu Province during the Wenchun Ms8.0 Earthquake

Abstract:

Based on mobile strong motion array observation, borehole exploration and site seismic response analysis, the site effects of mountainous topography in southeastern Gansu and the topography of loess tableland on ground motion were investigated in details. The analysis on acceleration records of aftershocks showed that the peak ground acceleration at top of the mountain is nearly 2 times of that at the foot of it. The seismic response analysis of sites shows that the loess tableland may amplify PGA by 1.44-2.0 times. Therefore, site effects of mountains and loess topography on ground motion should been taken account into seismic design.

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Periodical:

Advanced Materials Research (Volumes 594-597)

Pages:

1658-1667

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.594-597.1658

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Online since:

November 2012

Authors:

Zhi Jian Wu, Lan Min Wang, Ping Wang, Hang Shi, Tuo Chen

Keywords:

Ground Motion, Loess Tableland, Seismic Response, Site Condition

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References

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