Preliminary Analysis of Correlation between Ground Response and Subsoil Softening

Long Wei Chen; Xian Zhang Ling; Xiao Ming Yuan

doi:10.4028/www.scientific.net/AMR.368-373.2904

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Analysis on Parameters in Duncan-Chang Constitutive Model
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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 368-373Preliminary Analysis of Correlation between Ground...

Preliminary Analysis of Correlation between Ground Response and Subsoil Softening

Abstract:

Ground motion is closely related with subsoil properties. Under dynamic loading, subsoil tends to soften. Using a 1D model to simulate horizontal stratum, the correlation between ground motion and subsoil softening is investigated. Subsoil softening mainly influences ground motion, especially for long period components. Response spectrum intensity relative changing rate is proposed as an index for evaluating the influence of subsoil softening on ground motion. Response spectrum intensity relative changing rate keeps constant when shear wave velocity ratio v’/v0 is greater than 0.2 but increases dramatically with decreasing v’/v0 when v’/v0 is smaller than 0.2. Comparing to subsoil nonlinearity, subsoil liquefaction greatly increases long-period component energy which affects long period structures such as high rising buildings, long span structures

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Periodical:

Advanced Materials Research (Volumes 368-373)

Pages:

2904-2907

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.368-373.2904

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Online since:

October 2011

Authors:

Long Wei Chen, Xian Zhang Ling, Xiao Ming Yuan

Keywords:

Correlation, Ground Response, Spectral Intensity Relative Changing Rate, Subsoil Softening

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