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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 국제구조공학회 Steel and Composite Structures, An International Journal Steel and Composite Structures, An International Journal Vol.34 No.3
- 발행연도
- 2020.1
- 수록면
- 377 - 391 (15page)
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초록· 키워드
오류제보하기
A concrete filled steel tube (CFT) column with stiffeners has preferable behavior subjected to axial loading condition due to delay local buckling of the steel wall than traditional CFT columns without stiffeners. Welding lines in welded built-up steel box columns is expected to behave as longitudinal stiffeners. This study has presented a numerical investigation into the behavior of built-up concrete filled steel tube columns under axial pressure. At first stage, a finite element model (FE) has been built to simulate the behavior of built-up CFT columns. Comparing the results of FE and test has shown that numerical model passes the desired conditions and could accurately predict the axial performance of CFT column. Also, by the raise of steel tube thickness, the load bearing capacity of columns has been increased due to higher confinement effect. Also, the raise of concrete strength with greater cross section is led to a higher load bearing capacity compared to the steel tube thickness increment. In CFT columns with greater cross section, concrete strength has a higher influence on load bearing capacity which is noticeable in columns with more welding lines.
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참고문헌 (85)
참고문헌 신청
Farid Abed / 2013 / Experimental and numerical investigations of the compressive behavior of concrete filled steel tubes (CFSTs) / Journal of Constructional Steel Research 80:429~439
Ahmadi, M. / 2019 / A proposed model for axial strength estimation of non-compact and slender square CFT columns / Iran. J. Sci. Technol. T. Civil Eng 43(1):131~147
Ahmadi, M. / 2017 / Seismic failure probability and vulnerability assessment of steel-concrete composite structures / Periodica Polytechnica Civil Eng 61(4):939~950
Ahmadi, R. / 2016 / Experimental and numerical evaluation of progressive collapse behavior in scaled RC beam-column subassemblage / Shock Vib
Arabnejad Khanouki, M. / 2010 / Investigation of seismic behaviour of composite structures with concrete filled square steel tubular (CFSST) column by push-over and time-history analyses / Proceedings of the 4th International Conference on Steel & Composite Structures
Ahmadi, M. / 2019 / A proposed model for axial strength estimation of non-compact and slender square CFT columns / Iran. J. Sci. Technol. T. Civil Eng 43(1):131~147
Ahmadi, M. / 2017 / Seismic failure probability and vulnerability assessment of steel-concrete composite structures / Periodica Polytechnica Civil Eng 61(4):939~950
Ahmadi, R. / 2016 / Experimental and numerical evaluation of progressive collapse behavior in scaled RC beam-column subassemblage / Shock Vib
Arabnejad Khanouki, M. / 2010 / Investigation of seismic behaviour of composite structures with concrete filled square steel tubular (CFSST) column by push-over and time-history analyses / Proceedings of the 4th International Conference on Steel & Composite Structures
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