000009733 001__ 9733
000009733 005__ 20141205153148.0
000009733 04107 $$aeng
000009733 046__ $$k2008-10-12
000009733 100__ $$aChintanapakdee, Chatpan
000009733 24500 $$aSuitable Attenuation Model for Thailand

000009733 24630 $$n14.$$pProceedings of the 14th World Conference on Earthquake Engineering
000009733 260__ $$b
000009733 506__ $$arestricted
000009733 520__ $$2eng$$aTo establish seismic design criteria for buildings in Thailand, probabilistic hazard analysis requires estimation of ground motion intensity such as peak ground acceleration (PGA) or spectral acceleration. This estimation process needs to use an attenuation relationship, which provides PGA estimates as a function of earthquake magnitude, distance, and other seismic parameters. However, Thailand does not have enough strong motion records to develop a reliable attenuation model for the region, so existing models from other parts of the world have to be adopted. Unfortunately, different available attenuation models provide significantly different estimates at large distance, which is the case for sites in Thailand. Thus, the appropriate model for Thailand should be determined by comparing PGA estimates by each model to ground motions recorded in Thailand. In this study, twenty attenuation equations previously developed for shallow crustal earthquakes in both active tectonic and stable continental regions, and for subduction earthquakes were evaluated using a total of 163 ground motions recorded by Thai Meteorological Department (TMD) from 45 earthquake events between July 2006 and July 2007. PGA estimated by attenuation models for earthquake magnitude ranging from 4 to 7 were plotted and compared to the field records. The square root of mean of square (RMS) of the differences between estimated PGA and actual records was also computed for each attenuation model to quantify how well the model predicts ground motions. It was found that the attenuation models proposed by Idriss (1993), Sadigh et al. (1997), and Toro (2002) have the lowest RMS for shallow crustal earthquakes. And the model by Crouse (1991) has the lowest RMS for subduction earthquakes. Therefore, these models are the most suitable attenuation models for Thailand.

000009733 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000009733 653__ $$aAttenuation model, Peak ground acceleration, Ground motion estimation

000009733 7112_ $$a14th World Conference on Earthquake Engineering$$cBejing (CN)$$d2008-10-12 / 2008-10-17$$gWCEE15
000009733 720__ $$aChintanapakdee, Chatpan$$iNaguit, Muriel E.$$iCharoenyuth, Manop
000009733 8560_ $$ffischerc@itam.cas.cz
000009733 8564_ $$s401009$$uhttps://invenio.itam.cas.cz/record/9733/files/02-0088.pdf$$yOriginal version of the author's contribution as presented on CD, Paper ID: 02-0088.
000009733 962__ $$r9324
000009733 980__ $$aPAPER