Influence of Soil Softening and Liquefaction on Spectral Acceleration

To provide design guidance on the influence of soil softening on ground response, we analyzed ground motions recorded at five instrumented liquefaction sites, including the Wildlife Liquefaction Array, Calif.; the Port Island Downhole Array, Japan, the Treasure Island and Alameda Naval Air Station s...

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Bibliographic Details
Published in:Journal of geotechnical and geoenvironmental engineering 2005-07, Vol.131 (7), p.811-825
Main Authors: Youd, T. Leslie, Carter, Ben L
Format: Article
Language:English
Subjects:
H. BOLTON SEED MEMORIAL LECTURE
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Summary:To provide design guidance on the influence of soil softening on ground response, we analyzed ground motions recorded at five instrumented liquefaction sites, including the Wildlife Liquefaction Array, Calif.; the Port Island Downhole Array, Japan, the Treasure Island and Alameda Naval Air Station sites, Calif., and the Kawagiahi-cho apartment buildings, Niigata, Japan. Conclusions from these analyses are (1) where soil softening occurs early in a strong ground motion sequence, soil softening leads to reduced short period (T
ISSN:1090-0241
1943-5606
DOI:10.1061/(ASCE)1090-0241(2005)131:7(811)