Abstract
Seismic soil classification using a new standard proposal and comparison with the current standard for sites located in Reñaca and Concón
Highlights
In Chile to seismically classify a site where a structure will be founded, the standard NCh433 (2009)is used, which was modified by DS61 (2011), where it is indicated necessary to have the parameter of average soil shear wave velocity of the upper 30 m of the site (Vs30), Raddatz, D., Aguirre, G. and Taiba, O.(2021).30, 30-38 which, despite its limitations, is used in most seismic design codes in the world for seismic site classification (Verdugo and Valladares, 2016; Verdugo et al, 2019)
Is used, which was modified by DS61 (2011), where it is indicated necessary to have the parameter of average soil shear wave velocity of the upper 30 m of the site (Vs30), Raddatz, D., Aguirre, G. and Taiba, O.(2021)
The soil parameters used in the seismic soil classification in Chile, both for the current design code and for the new classification proposal, are commonly used in different international design codes
Summary
In Chile to seismically classify a site where a structure will be founded, the standard NCh433 (2009)is used, which was modified by DS61 (2011), where it is indicated necessary to have the parameter of average soil shear wave velocity of the upper 30 m of the site (Vs30), Raddatz, D., Aguirre, G. and Taiba, O.(2021).30, 30-38 which, despite its limitations, is used in most seismic design codes in the world for seismic site classification (Verdugo and Valladares, 2016; Verdugo et al, 2019). In Chile to seismically classify a site where a structure will be founded, the standard NCh433 (2009). To classify seismically a site, soil resistance parameters are needed, such as: unconfined compression strength (qu), normalized standard penetration test resistance (N1) and/or soil undrained shear strength (Su). In the seismic soil classification proposal, both parameters obtained with geophysical methods will be used, which have the advantage that they provide information quickly and non-invasively at the sites, with small deformations of the soils both on the surface and in depth (Godoy et al, 2015; Mendoza et al, 2018). The requirements for the current seismic classification method and for the new seismic classification proposal in Chile are summarized
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