http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
- 中文 을 입력하시려면 zhongwen을 입력하시고 space를누르시면됩니다.
- 北京 을 입력하시려면 beijing을 입력하시고 space를 누르시면 됩니다.
RISS 인기검색어
- 검색키워드
- 저자 : Rusandi Noor (검색결과 1 건)
- 무료
- 기관 내 무료
- 유료
-
Rusandi Noor,Hiroshi Tamura,Hiroshi Katsuchi,Wang Jiaqi 한국강구조학회 2023 International Journal of Steel Structures Vol.23 No.6
Bridge maintenance and repair have gained significant attention as their service life continues to extend. Numerous retrofit projects have been implemented to address the corrosion issues at steel plate girders’ ends. This study focuses on evaluating the durability of the retrofitted part of the steel girder end by assessing its ability to sustain eccentric fatigue load and recognizing the possibilities of CFRP post-retrofitted damage. The novel specimen was designed to replicate corrosion on the inner side of exterior steel girder web ends and study the effect of retrofitting them with CFRP. In addition, a new bending fixture design based on the specimen design was proposed to reproduce the actual severe loading mode of a CFRP-retrofitted steel girder end. Polyurea putty (FU-Z) was used to identify the durability owing to its flexible characteristics under fatigue. The lifecycle-oriented experimental results showed that the specimens with CFRP-retrofitted steel girder ends survived for 3.5 million cycles under fatigue loading. However, specimens without polyurea putty exhibited damage characteristics, such as detachment and delamination. In addition, the shifted local stress detection of the edge joint represented the detachment of the retrofit material at 3 million cycles. The detachment occurred at the end of the corrosion web edge and delamination was observed in the cutoff section, which reduced the local bonding of 50% of the CFRP sheets. In addition, local damage resulted in durability resistance developed under elastic conditions.
연관 검색어 추천
이 검색어로 많이 본 자료
활용도 높은 자료
