New Methods to Characterize Site Amplification

by Erdal ?afak, U.S. Geological Survey, Reston, United States,

Document Type: Proceeding Paper

Part of: Structural Engineering in Natural Hazards Mitigation


Methods alternative to spectral ratios are introduced to characterize site amplification. The methods are developed by using a range of models, from the simple constant amplification model to the time-varying filter model. Examples are given for each model by using a pair of rock- and soil-site recordings from the Loma Prieta earthquake.

Subject Headings: Mathematical models | Site investigation | Soil analysis | Ground motion | Filters | Earthquakes | Statistics

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