An Investigation of Local Site Effects Using Linear and Nonlinear analysis and Comparison Between Them
Abstract: Recent code
provisions for building and other structures (1994 and 1997 NEHRP provisions,
1997 UBC) have adopted new site classification. The new site classification
system is based on average shear wave velocity to a depth of 30 m. when the
shear wave velocity is not available; other soil properties such as undrained
shear strength can be used. The study of propagation damages in various
earthquakes illustrates the importance of the site effect on the ground seismic
characteristics. From the point of the earthquake engineering view, the most
important characteristics of the strong ground motion are amplitude, frequency
content and duration. All of these properties have a significant effect on
earthquake damage. The behavior of soils under cyclic loading is basically nonlinear
and hysteretic. Ground response analysis is used to predict the movements of
the ground and develop a design response spectrum in order to determine the
dynamic stresses and strains and earthquake forces. The profile was studied by
using various methods of soil response analysis and finally, the results were
examined. In this paper, soil responses were examined by NERA, EERA software
and the results compared with each other. Eventually, we concluded that the
values obtained from the EERA are more than the value obtained from the NEERA
software.
Author: Ali Komak Panah, Aylin
Nouri
Journal Code: jptsipilgg160018
