Corrosion is one of the most typical aging phenomena associated with long-term use of steel structures. Corrosion of high-tension bolted connections causes problems such as reduction of thickness of member and relaxation of axial force of high-tension bolt, thereby reducing load-carrying capacity of high-tension bolted connections. In this study, three specimens were subjected to natural corrosion in order to evaluate the residual load-carrying capacity of high-tension bolted connections where corrosion occurred. Two specimens were newly fabricated for comparison with the corroded specimens. In addition, the static bending test was performed to compare and investigate the behavior characteristics of the high-tension bolted connections and the final failure modes. The residual load-carrying capacity of the corroded high-tension bolted connections was evaluated.

ABSTRACT
 1. 서 론
 2. 시험체 및 재하실험
  2.1 시험체의 상세제원
  2.2 실험장치 및 재하방법
 3. 실험 결과
  3.1 고장력 볼트 이음부의 강도특성
  3.2 고장력 볼트 이음부의 파괴형상
 4. 결 론
 References

• 함준수(인하대학교 토목공학과) | Ham Junsu
• 황원섭(인하대학교 사회인프라공학과) | Hwang Won-Sup
• 수타진(인하대학교 토목공학과) | Su Thazin
• 박성준(인하대학교 토목공학과) | Park Seong-Jun