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Title |
Experimental Study on RC Frame Structures with Non-Seismic Details Strengthened by Externally-Anchored Precast Wall-Panel Method (EPWM)
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Authors |
최승호(Seung-Ho Choi) ; 황진하(Jin-Ha Hwang) ; 이득행(Deuck Hang Lee) ; 김강수(Kang Su Kim) ; 권용근(Yong-Keun Kwon) ; 김길희(Kil-Hee Kim) |
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DOI |
http://dx.doi.org/10.4334/JKCI.2015.27.4.451 |
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Keywords |
내진 보강 ; 반복 가력 ; 프리캐스트 벽체 ; 앵커볼트 ; 횡하중 seismic strengthening ; cyclic behavior ; precast wall ; bolt anchor ; lateral force |
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Abstract |
The infill-wall strengthening method has been widely used for the seismic performance enhancement of the conventional reinforced concrete (RC) frame structures with non-seismic detail, which is one of the promising techniques to secure the high resisting capacity against lateral forces induced by earthquake. During the application of the infill-wall strengthening method, however, it often restricts the use of the structure. In addition, it is difficult to cast the connection part between the wall and the frame, and also difficult to ensure the shear resistance performances along the connection. In this study, an advanced strengthening method using the externally-anchored precast wall-panel (EPCW) was proposed to overcome the disadvantages of the conventional infill-wall strengthening method. The one-third scaled four RC frame specimens were fabricated, and the cyclic loading tests were conducted to verify the EPCW strengthening method. The test results showed that the strength, lateral stiffness, energy dissipation capacity of the RC frame structures strengthened by the proposed EPCW method were significantly improved compared to the control test specimen.
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