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Earthquake resistance of structural walls confined by conventional tie hoops and steel fiber reinforced concrete
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  • Earthquake resistance of structural walls confined by conventional tie hoops and steel fiber reinforced concrete
  • Earthquake resistance of structural walls confined by conventional tie hoops and steel fiber reinforced concrete
저자명
Eom. Taesung,Kang. Sumin,Kim. Okkyue
간행물명
Earthquakes and structures
권/호정보
2014년|7권 5호|pp.843-859 (17 pages)
발행정보
테크노프레스
파일정보
정기간행물|ENG|
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이 논문은 한국과학기술정보연구원과 논문 연계를 통해 무료로 제공되는 원문입니다.
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기타언어초록

In the present study, the seismic performance of structural walls with boundary elements confined by conventional tie hoops and steel fiber concrete (SFC) was investigated. Cyclic lateral loading tests on four wall specimens under constant axial load were performed. The primary test parameters considered were the spacing of boundary element transverse reinforcement and the use of steel fiber concrete. Test results showed that the wall specimen with boundary elements complying with ACI 318-11 21.9.6 failed at a high drift ratio of 4.5% due to concrete crushing and re-bar buckling. For the specimens where SFC was selectively used in the plastic hinge region, the spalling and crushing of concrete were substantially alleviated. However, sliding shear failure occurred at the interface of SFC and plain concrete at a moderate drift ratio of 3.0% as tensile plastic strains of longitudinal bars were accumulated during cyclic loading. The behaviors of wall specimens were examined through nonlinear section analysis adopting the stress-strain relationships of confined concrete and SFC.