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http://dx.doi.org/10.11112/jksmi.2012.16.3.117

Numerical Study for Seismic Strengthening of RC columns Using Fiber Reinforced Plastic Composite  

Chang, Chun Ho (계명대학교 토목공학과)
Kwon, Min Ho (경상대학교 토목공학과 공학연구원)
Kim, Jin Sup (경상대학교 토목공학과)
Joo, Chi Hong ((주)넥스컴스)
Publication Information
Journal of the Korea institute for structural maintenance and inspection / v.16, no.3, 2012 , pp. 117-127 More about this Journal
Abstract
As increasing number of large-size earthquake around Korean peninsula, many interests have been focused to the earthquake strengthening of existing structures. Fiber reinforced plastic composite material is one of strengthening material widely used to increase seismic performance of structures. It should have high stiffness as well as large ductility to provide best strengthening result. Thus selection of stiffener and fiber in composite is of important. In this study, the optimal combination of fiber and stiffener is selected with variety of tensile tests. In order to investigate performance of chosen composite material, several finite element analyses are performed with proposed FRP composite material for existing RC columns. It is discussed that the seismic performance of strengthened columns through the load-displacement relationship. It is shown that the proposed composite material can increase the strength as well as ductility of exiting RC columns.
Keywords
Seismic retrofitted; FRP composite; Fiber; Column retrofitted; Push-Over Analysis(NSA); Finite element;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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