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플라이애시 및 PET섬유를 혼입한 변형경화형 시멘트 복합체(SHCC)의 휨성능 평가
차준호(Cha Jun-Ho),송선화(Song Seon-Hwa),장용헌(Jang Yong-Heon),전에스더(Jeon Esther),윤현도(Yun Hyun-Do) 대한건축학회 2009 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.29 No.1(구조계)
There have been numerous studies to develop eco-friendly concrete. The attempt to reduce the amount of cement usage is suggested as one of the solutions for eco-friendly concrete. So this study, Some investigations have been presented for retrofitting and/or strengthening structural elements. Particularly to avoid seismic damage, many researchers have invested seismic resistance material development. Strain-hardening cement composite(SHCC) expects excellent seismic resistance performance. SHCC is one in innovative method that it mixes the fiber of about 2% in the cement composite. To reduce the amount of cement usage, fly ash are widely used as the mineral admixture. Meanwhile, PET fiber made of recycled PET bottle is a type of recycled material, which can be used to construction of database for development and application of Green SHCC.
섬유의 혼입률 및 단면감소에 따른 변형경화형 시멘트 복합체(SHCC) 끼움벽의 내진성능
차준호 ( Cha Jun Ho ),이영오 ( Lee Yeong Oh ),김선우 ( Kim Seon Woo ),윤현도 ( Yun Hyeon Do ) 한국구조물진단유지관리공학회 2010 한국구조물진단유지관리공학회 학술발표대회 논문집 Vol.14 No.1
Recently, The seismic behavior of the lightly reinforced concrete frames (LRCFs) was controlled by the nonductile behavior of the critical regions. These critical regions require retrofit to improve the seismic behavior of the lightly reinforced concrete frames. Parts of critical column must be retrofit to increase the global ductility capacity. The objective of this research is to evaluate structural strengthening performance of lightly reinforced concrete frame with Strain hardening cement composite(SHCC) experimentally.