TY - JOUR
ID - 4077
TI - Probabilistic seismic hazard analysis using reliability methods
JO - Scientia Iranica
JA - SCI
LA - en
SN - 1026-3098
AU - Kia, M.
AU - Banazadeh, M.
AD - Department of Civil and Environmental Engineering, Amirkabir University of Technology, Tehran, P.O. Box 15875-4413, Iran
Y1 - 2017
PY - 2017
VL - 24
IS - 3
SP - 933
EP - 941
KW - Probabilistic seismic hazard analysis
KW - Reliability methods
KW - Probabilistic model
KW - Epistemic and aleatory uncertainties
KW - Limit-state function
DO - 10.24200/sci.2017.4077
N2 - By considering uncertainties in the input parameters (e.g., magnitude, location, wave path, etc.), the Probabilistic Seismic Hazard Analysis (PSHA) aims to compute annual rate of various exceeding ground motions at a site or a map of sites of all anticipated given earthquakes. Uncertainties may be originated due to inherent randomness of the phenomena or variability in the mean values of dierent models parameters, mainly due to use of nite-sample size of observations. The rst, in literature reviews, is commonly named aleatory uncertainty; the second is known as epistemic uncertainty. The total probability numerical integration, generally employed to calculate PSHA, only considers aleatory uncertainties, and variability in the models' parameters is neglected to simplify calculation. In this paper, as an alternative to the total probability numerical integration, matured and standard reliability methods tailored to eortlessly consider both types ofuncertainties are put forward to compute site-specic PSHA. Then, as an application study, the peak ground acceleration hazard curve for the site, at which a historical bridge is located, is developed and compared with those obtained from the total probability numerical integration.
UR - https://scientiairanica.sharif.edu/article_4077.html
L1 - https://scientiairanica.sharif.edu/article_4077_2f53979d36024454e031cafbdf49080a.pdf
ER -