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콘크리트 충전강관으로 보강된 RC기둥의 내진성능 실험A Experimental Investigation on Seismic Performance of RC Column Retrofitted with Concrete-Filled Steel Tube

Other Titles
A Experimental Investigation on Seismic Performance of RC Column Retrofitted with Concrete-Filled Steel Tube
Authors
이병한박성봉신승훈이진우윤정배
Issue Date
Dec-2020
Publisher
대한건축학회지회연합회
Keywords
FT Retrofit; Lateral Behavior; Cyclic Test; Nonlinear Fiber Analysis; Seismic Performance; CFT보강; 횡력거동; 반복실험; 비선형파이버해석; 내진성능
Citation
대한건축학회연합논문집, v.22, no.6, pp 55 - 63
Pages
9
Indexed
KCI
Journal Title
대한건축학회연합논문집
Volume
22
Number
6
Start Page
55
End Page
63
URI
https://scholarworks.gnu.ac.kr/handle/sw.gnu/73201
ISSN
1229-5752
Abstract
본 연구는 콘크리트 충전 강관으로 보강한 외부 RC기둥의 내진 성능을 조사하였다. 실험을 통하여 반복 횡하중을 받는 보강기둥의 거동을 평가하였다. 시험결과로부터 내진성능에 대한 강도, 연성, 에너지 소산 및 등가 점성 감쇠비를 결정하여 평가하였다. 섬유 모형에 의한 해석을 사용하고, 실험으로부터 얻은 성능결과와 비교하므로써 내진성능예측에 대한 적용성을 검증하였다. 그 결과 하중-변위곡선의 예측은 테스트 결과와 상당히 유사한 것으로 나타났다.
This study investigated the seismic performance of external RC columns with concrete-filled steel tubes. Through the experiment, the behavior of strengthened column subjected to cyclic lateral load was evaluated. From the test results. the strength, ductility, energy dissipation and equivalent viscous damping ratio for seismic performance were determined and evaluated. The applicability to seismic performance prediction was verified by using the fiber model analysis and comparing it with the performance results from the experiment. As a result, the prediction of load-displacement curves were found to be quite similar to the test results.
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