000011771 001__ 11771
000011771 005__ 20141205155944.0
000011771 04107 $$aeng
000011771 046__ $$k2008-10-12
000011771 100__ $$aSung, Yu-Chi
000011771 24500 $$aRapid Seismic Risk Evaluation System of Existing Bridges in Taiwan

000011771 24630 $$n14.$$pProceedings of the 14th World Conference on Earthquake Engineering
000011771 260__ $$b
000011771 506__ $$arestricted
000011771 520__ $$2eng$$aLocated at the western Circum Pacific Seismic Belt, Taiwan suffers from earthquakes frequently caused by the interactive extruding at the interface between the Philippine Ocean Plate and the Euro-Pacific Plate. Numerous existing bridges in Taiwan are inevitably threatened by the occurrence of strong earthquakes. Therefore, the establishment of a rapid seismic risk evaluation system could help in reducing seismic disaster of the bridges. Based on the recorded earthquakes with magnitude over 5.0 during 1990 to 2003, this paper performed the regression analyses of attenuation law of peak ground acceleration (PGA) for the stations, all over Taiwan, set up by the CWB under the Taiwan Strong Motion Instrumentation Program. The comparisons between simulated seismic intensity and actual one for some recent earthquakes were made sequentially to assure the precision of analysis. As a result, the distribution of PGA, for any simulated earthquake, over Taiwan can be predicted successfully and served as the basis of seismic demand evaluation. On the other hand, according to the investigations of seismic capacity for over 2,000 existing bridges performed by the Taiwan Directorate General of Highways, the fragility curves of the bridges can be implemented and employed in calculating the probabilities for various damage levels. Accordingly, this paper adopted the object-oriented technique to develop the evaluation system. The possible seismic loss of the bridges under a specific simulating earthquake could be evaluated in a short moment and shown visually. The developed system might facilitate the careful strategy of disaster-preventing.

000011771 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000011771 653__ $$aAttenuation law, Fragility curve, Disaster-preventing strategy, Object-oriented

000011771 7112_ $$a14th World Conference on Earthquake Engineering$$cBejing (CN)$$d2008-10-12 / 2008-10-17$$gWCEE15
000011771 720__ $$aSung, Yu-Chi$$iHsu, Chia-Chuan$$iLai, Min-Chun$$iChang, Y.R.$$iTsai, I-Chau$$iCheng, M.Y.
000011771 8560_ $$ffischerc@itam.cas.cz
000011771 8564_ $$s624875$$uhttps://invenio.itam.cas.cz/record/11771/files/S02-005.pdf$$yOriginal version of the author's contribution as presented on CD, Paper ID: S02-005.
000011771 962__ $$r9324
000011771 980__ $$aPAPER