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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 한국계산역학회 Computers and Concrete, An International Journal Computers and Concrete, An International Journal Vol.19 No.2
- 발행연도
- 2017.1
- 수록면
- 191 - 201 (11page)
이용수
초록· 키워드
오류제보하기
External pre-stressing is often used in strengthening or retrofitting of steel-concrete composite beams. In this way, a proper numerical model should be able to trace the completely nonlinear response of these structures at service and ultimate loads. A three dimensional finite element model based on shell elements for representing the concrete slab and the steel beam are used in this work. Partial interaction at the slab-beam interface can be taken into account by using special beam-column elements as shear connectors. External pre-stressed tendons are modeled by using one-dimensional catenary elements. Contact elements are included in the analysis to represent the slipping at the tendon-deviator locations. Validation of the numerical model is established by simulating seven pre-stressed steel-concrete composite beams with experimental results. The model predictions agree well with the experimental results in terms of collapse loads, path failures and cracking lengths at negative moment regions due to service loads. Finally, the accuracy of some simplified formulas found in the specialized literature to predict cracking lengths at interior supports at service loading and for the evaluation of ultimate bending moments is also examined in this work.
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참고문헌 (23)
참고문헌 신청
Chen, S. / 2005 / Load carrying capacity of composite beams prestressed with external tendons under positive moment / J. Constr. Steel Res. 61(4):515~530
Chen, S. / 2010 / Numerical investigation of inelastic buckling of steel-concrete composite beams prestressed with external tendons / Thin Wall. Struct. 48(3):233~242
Chen, S. / 2006 / Effective width of a concrete slab in steel-concrete composite beams prestressed with external tendons / J. Constr. Steel Res. 62(5):493~500
Chen, S. / 2009 / A comparative study of continuous steel-concrete composite beams prestressed with external tendons : Experimental investigation / J. Constr. Steel Res. 65(7):1480~1489
Coarita, E. / 2015 / Nonlinear analysis of structures cable-truss / J. Eng. Technol. 7(3):160~169
Chen, S. / 2010 / Numerical investigation of inelastic buckling of steel-concrete composite beams prestressed with external tendons / Thin Wall. Struct. 48(3):233~242
Chen, S. / 2006 / Effective width of a concrete slab in steel-concrete composite beams prestressed with external tendons / J. Constr. Steel Res. 62(5):493~500
Chen, S. / 2009 / A comparative study of continuous steel-concrete composite beams prestressed with external tendons : Experimental investigation / J. Constr. Steel Res. 65(7):1480~1489
Coarita, E. / 2015 / Nonlinear analysis of structures cable-truss / J. Eng. Technol. 7(3):160~169
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