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Title |
An Experimental Study on Seismic Performance Evaluation of Retrofitted Column of FRP Seismic Reinforcement that can be Emergency Construction
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Authors |
김진섭 ; 권민호 ; 서현수 ; 임정희 ; 김동영 |
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Keywords |
FRP 내진보강재 ; 알루미늄 연결재 ; 내진보강 ; 비선형 유한요소해석 ; 연성 FRP seismic reinforcement ; Aluminum connector ; Seismic reinforcement ; Nonlinear FEM ; Ductility |
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Abstract |
As increasing number of large-size earthquake, the social interest of seismic retrofitting of RC structure is growing. Especially, the RC columns that are not reflected seismic design can not resist lateral loads by the earthquake. The brittle fracture of Non-seismic designed columns lead to full collapse of the building. Thus, the emergency columns reinforcement method is needed. That have a fast construction time, do not cause damage to the column. In the past, cross-sectional expansion method, a steel plate reinforcing method is applied mainly, but in recent years, carbon fiber sheet taking advantage of FRP (Fiber Reinforced Polymer) is widely used. In this study, retrofitting effect of seismic performance of FRP seismic reinforcement, which is possible to emergency construction, was examined. Reinforced concrete specimens were constructed to experimental study. The seismic performence of specimes retrifitted with FRP seismic reinforcement were evaluated. As a result, the seismic performance of specimen reinforced with FRP seismic reinforcement has been improved.
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