| Title |
Development of Non-linear Finite Element Modeling Technique for Circular Concrete-filled Tube (CFT) |
| Authors |
문지호(Moon, Jiho) ; 고희중(Ko, Heejung) ; 이학은(Lee, Hak-Eun) |
| DOI |
https://doi.org/10.12652/Ksce.2012.32.3A.139 |
| Keywords |
원형 콘크리트 충전 강관;합성구조;비선형 유한 요소 해석 concrete-filled tube;composite structures;non-linear finite element analysis |
| Abstract |
Circular concrete-filled tubes (CFTs) are composite members, which consists of a steel tube and concrete infill. CFTs have been used as building columns and bridge piers due to several advantages such as their strength-to-size efficiency and facilitation of rapid construction. Extensive experimental studies about CFT have been conducted for past decades. However experimental results alone are not sufficient to support the engineering of these components. Complementary advanced numerical models are needed to simulate the behavior of CFT to extend the experimental research and develop predictive tools required for design and evaluation of structural systems. In this study, a finite element modeling technique for CFT was developed. The confinement effects, and behavior of CFT subjected various types of loading predicted by the proposed finite element model for CFT were verified by comparing with test results. |