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http://dx.doi.org/10.11004/kosacs.2013.4.2.025

Design Optimization of Safety Barrier Consisting of Steel Rail and CFRP Post  

Kim, Jung Joong (Department of Civil and Environmental Engineering, Sejong University)
Kim, Seung-Eock (Department of Civil and Environmental Engineering, Sejong University)
Publication Information
Journal of the Korean Society for Advanced Composite Structures / v.4, no.2, 2013 , pp. 25-30 More about this Journal
Abstract
In this study a hybrid safety barrier system consisting of steel rail and carbon fiber reinforced polymer (CFRP) post is considered. W hile CFRP post is selected for impact energy reflection due to its high strength, steel rail is selected for impact energy absorption due to its high ductility. A numerical model considering the elastoplastic behavior of steel is formulated to simulate the dynamic responses of the hybrid system subject to an impact load. A hybrid roadside guard rail system of steel rail and CFRP post is proposed and analyzed with a case study. The numerical model for the hybrid roadside guard rail system is used to find optimized design of the proposed hybrid system.
Keywords
hybrid system; roadside safety barrier; steel rail; CFRP post; dynamic analysis; reliability analysis; optimization;
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Times Cited By KSCI : 1  (Citation Analysis)
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