Keywords
Vs30
Site classification
Seismic Code
San Jose
periodo fundamental del suelo
Vs30
Clasificación de sitios
Código Sísmico
San José
How to Cite
Abstract
In this work, the fundamental period of the soil (Tf) was identified in 185 sites located in the Central Canton of San José (CCSJ), by using the H/V spectral ratio. The fundamental periods were obtained from measurements at each site. About 85 % of the sites where the H/V method was applied allowed a clear identification of the fundamental period, which corresponds to the peak of the highest amplitude in the H/V graph. When presenting the results of Tf in maps, 3 zones are clearly observed, where the periods are on average 0.5 s with extreme values of 0.1 to 0.9 s for zone 1, less than 0.3 s for zone 2 and variable between 0.1 and 0.4 s for zone 3. The highest measured fundamental period is located as an isolated point in the southwestern sector of the Mata Redonda district and has a value greater than 0.8 s. Both the soil classification and the Vs30 parameter were estimated from correlations established by Pinzón et al. (2021).
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