철근콘크리트 골조면내 전단벽 보강시스템의 내진성능 평가 및 개선 = Seismic Performance of Reinforced Concrete Infilled Shear Wall with the Retrofitting System

다국어 초록 (Multilingual Abstract)

Four reinforced concrete infilled shear wall using retrofitting system were tested under both vertical and cyclic loadings, Experimental programs were carried out to evaluate and improve the seismic performance of such test specimens, such as the hysteretic behavior, the maximum horizontal strength, energy dissipation capacity, crack propagation, and ductility etc. under load reversals. All the specimens were modeled in one-third scale size. Based on the test results reported in this study, the following conclusions can be made. The specimens(RWHC, RWAHC, RWXHC) designed by the high ductile fiber composite mortar, anchoring system, and diagonal reinforcement for standard specimen(SRF) were increased 1.1~1.2 times in comparison with the standard specimen(SRF). Energy dissipation capacity of specimens designed by the improving of seismic performance were increased 1.7~2.2 times in comparison with the standard specimen(SRF).

국문 초록 (Abstract)

지진하중을 받는 철근콘크리트 골조면내 전단벽의 내진선능을 평가하고 개선하기 위하여 실물크기 1/3정도로 표준실험체 및 성능개선 실험체를 제작하였다. 그리고 지진하중을 받는 철근콘크리트 골조면내 전단벽의 내진성능 개선을 위하여 고인성 섬유복합 모르타르 및 성능개선 디테일을 적용하여 전단벽을 보강한 후 각 실험체의 이력거동, 최대내력, 파괴형태, 연성능력 등을 평가하였으며, 주요결과는 다음과 같다. 철근콘크리트 골조면내 전단벽을 고인성섬유 복합모르타르,앵커보강 및 성능개선 배근상세 기법을 활용하여 보강한 실험체 RWAHC, RWXHC는 표준 철근콘크리트 내진벽 실험체 SRW에 비하여 최대내력이 1.1～1.2배 증가하였다. 철근콘크리트 골조면내 전단벽을 고인성섬유 복합모르타르,앵커보강 및 성능개선 배근상세 기법을 활용하여 보강한 실험체 RWAHC, RWXHC는 이력거동특성을 고찰한 결과 최대내력이후에 내력 감소가 서서히 진행되어 매우 안정적인 이력거동을 나타내었으며, 에너지 소산능력은 변위연성 3에서 1.7～2.2배 증가하였다

참고문헌 (Reference)

1 하기주, "철근콘크리트 전단벽의 구조성능개선을 위한 보강방안에 관한 실험적 연구" 한국구조물진단유지관리공학회 12 (12): 79-86, 2008

2 Aktan, A. E., "Seismic Response of R/C FRAME-Wall Structures" 110 (110): 1803-1821, 1984

3 Ha, G. J., "Response of Reinforced High-Strength Concrete Beam-Column Joints Under Load Reversals" 160 : 175-184, 1992

4 Kim, Y. Y., "Performance of Bridge Deck Link Slabs Designed with Ductile Engineered Cementitious Composite(ECC)" 101 (101): 792-801, 2004

5 James Warner, "Methods for Repairing and Retrofitting(Strengthening) Existing Buildings, Workshop on Earthquake-Resistant Reinforced Concrete Building Construction" University of California 1977

6 Hsu, H. L., "Improving seismic performance of framed structures with steel curved dampers" 130 : 99-111, 2017

7 Shin, J., "Improvement and Evaluation of Earthquake-Resistant Performance for Reinforced Concrete Infilled Masonry Frame" 3 (3): 141-148, 2001

8 Ha, G., "Improvement and Evaluation of Earthquake Resistant Retrofit Techiques for Remodeli : ng of Structura1 Performance in Existi : ng Reinforced Concrete Frames" 5 (5): 175-182, 2001

9 Federal Emergency Management Agency, "FEMA 310 : Handbook for Seismic Evaluation of Buildings – A Prestandard"

10 Chang, C., "Behavior of Non-Seismic Detailed Low-Rise Reinforced Concrete Frame by Cyclic Loading" 4 (4): 127-133, 2002

11 Fiorato, A. E., "Behavior of Earthquake Resistant Structural Walls Before and After Repair" 80 (80): 403-413, 1983

12 ACI Committee 374, "Acceptance Criteria for Moment Frames Based on Structural Testing and Commentary. ACI, 374(1)"