Study of the attenuation relationship for the Wenchuan M sub(s) 8.0 earthquake

Prediction of peak ground acceleration is an essential element in engineering seismology and it has received great attention in last few decades. In this paper, a comprehensive database of the strong-motion records of the 2008 great Wenchuan Ms 8.0 earthquake is analyzed to investigate the seismic a...

Full description

Saved in:
Bibliographic Details
Published in:Earthquake Engineering and Engineering Vibration 2015-03, Vol.14 (1), p.1-11
Main Authors: Kuok, Sin-Chi, Ng, Iok-Tong, Yuen, Ka-Veng
Format: Article
Language:English
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Prediction of peak ground acceleration is an essential element in engineering seismology and it has received great attention in last few decades. In this paper, a comprehensive database of the strong-motion records of the 2008 great Wenchuan Ms 8.0 earthquake is analyzed to investigate the seismic attenuation relationship and the directivity effects. In contrast to most existing seismic attenuation models, the proposed model considers explicitly the directivity effect which has primary influence on the magnitude of ground motion. Bayesian model updating is used to obtain the model parameters and the associated uncertainty. Comparative study is performed with the well-known Boore-Joyner-Fumal empirical formula. Results show that consideration of the directivity effect is vital in modeling the seismic attenuation relationship.
ISSN:1671-3664
1993-503X
DOI:10.1007/s11803-015-0002-9