In this study, circular sectional concrete-filled tube(CFT) column-to-foundation connections were numerically investigated in order to improve their structural details. A inner reinforced specimen with high-tension bolts and inner deformed bars was adopted from a previous experimental study to make the numerical model. The validity of the numerical method was verified through comparing the experimental results with the analysis’s ones. In order to optimize design variables about the inner reinforced model, a number of numerical analyses were conducted for various variables. Finally, this study suggested the optimum variables about the reinforced circular sectional CFT column-to-foundation connections.

1. 서 론
2. 수치해석 모델
3. 해석결과
4. 결 론
감사의 글
References

• 김희주(인하대학교 토목공학과 박사) | Kim, Hee-Ju
• 함준수(인하대학교 토목공학과 박사과정) | Ham, Jun-Su
• 정진일(인하대학교 토목공학과 박사과정) | Chung, Jin-Il
• 황원섭(인하대학교 사회인프라공학과 교수) | Hwang, Won-Sup Corresponding author