RETROFITTING TRANSPORTATION SYSTEMS TO ENSURE RESILIENCY
This paper presents a seismic risk assessment of the transportation network in Charleston, SC, to support the development of mitigation strategies and emergency planning and preparedness efforts. In particular, this study focuses on the impact of retrofit on reducing the expected damage and improving the resiliency of the network. This study includes an inventory analysis of the roughly 375 bridges in the Charleston area, and convolution of the seismic hazard with fragility curves analytically derived for classes of bridges common to this part of the country, and replacement cost estimates using relevant region-specific data. Using state-of-the-art tools, the distribution of potential bridge damage and functionality is evaluated for several scenario events and several retrofit strategies. The results show that retrofitting bridges based on retrofitted bridge fragility curves can be an effective way to reduce the economic losses and improve the resiliency of the system.
Seismic risk assessment fragility curves retrofit bridges functionality
R. DesRoches J.E. Padgett E. Nilsson
Dept. Of Civil and Environmental Engineering, Georgia Institute of Technology,Atlanta, Georgia, USA Dept. Of Civil and Environmental Engineering, Rice University, Houston, Texas, USA Design Engineering, Datum Engineers, Inc. 5929 Balcones Drive,Suite 100 Austin, TX 78731 , USA
国际会议
14th World Conference on Earthquake Engineering(第十四届国际地震工程会议)
北京
英文
2008-10-12（万方平台首次上网日期，不代表论文的发表时间）