TITLE:
On the Disadvantages of the NEHRP Soil Classification
AUTHORS:
Alexander Stepanovich Aleshin
KEYWORDS:
Seismic Site Properties Classification, Site Class
JOURNAL NAME:
Open Journal of Earthquake Research,
Vol.10 No.1,
February
26,
2021
ABSTRACT: The study of the relationship of local ground conditions with the
parameters of seismic vibrations carried out
by the section of engineering seismology called seismic microzonation.
In this branch of applied science
radical changes have taken place at the end of the last century. The Commission
on Seismic Safety of the National Institute of Building Sciences of the United
States has developed new recommendations, which are significantly different
from all that used in the world practice of anti-seismic construction. The main
provisions of this NEHRP (National Earthquake Hazards Reduction Program)
classification adopted in many national building
codes, including Eurocode 8. At the same time, a number of papers appeared in
subsequent years criticizing the use of the NEHRP soil classification.
This article examines in detail and, most importantly, comprehensively the shortcomings of the NEHRP classification.