This study investigates elastic flange local buckling of ultra high performance concrete (UHPC) I-girders. The girders were modeled using 3D shell elements (S4R) and analyzed by eigenvalue analysis. Then, the flange local buckling strength from the FE analysis were evaluated according to the flange and web slenderness ratios and compared to the local buckling strength of steel girders. The results shows that the flange local buckling of UHPC I-girders are underestimated compared to the strength of steel girders which has same geometric cross sections and further studies needed related to this field.

ABSTRACT
 1. 서 론
 2. 구조해석
  2.1 해석 개요
  2.2 해석결과
 3. 결 론
 References

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• 변남주(고려대학교 건축사회환경공학부) | Byun Nam-Joo
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