SITE AMPLIFICATION MODELS OF PEAK GROUND ACCELERATION AND VELOCITY FOR THE BOGOTÁ BASIN, COLOMBIA

Abstract:

In this study, we developed site amplification models of PGA and PGV for the Bogotá basin, Colombia by analyzing the observed strong motion records. The amplification factors are defined as the PGAs and PGVs observed at surface divided by the reference PGAs and PGVs from the existing attenuation relationship. Several attenuation relationships including Uchiyama and Midorikawa (2006) are examined for evaluating reference bedrock intensities. The relationships between the Vs30 of the observation sites and the amplification factors for surface and body wave type records are modeled through regression analysis. The modeled site amplifications are discussed by comparing with the previous amplification models, and would be incorporated to real-time strong motions and building damage estimation system developing in Bogotá DC

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