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논문 기본 정보
- 자료유형
- 학술대회자료
- 저자정보
- 발행연도
- 2008.7
- 수록면
- 153 - 167 (15page)
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초록· 키워드
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When a prestressed double- T beam is subjected to torsion, a pair of prestressing tendons resists torsional rotation because of the restoring action of the displaced prestressing tendons. A comprehensive formulation to account for the torsional restoring action of double- T beams is presented, based on Vlasov's hypothesis that considers warping displacement in an open-section. The deformation energy of the prestressing tendons and reinforcing bars is calculated based on their deformed geometry. A two-noded beam element with seven degrees of freedom per node approximates the axial displacement, two translations, flexural and torsional rotations, and warping displacement. The role of prestressing forces of the tendons on the torsional resistance and the limitations of the transformed section approach are addressed when it is applied to torsional problems.
목차
Abstract
1. Introduction
2. DEFORMATION OF DOUBLE-T BEAM
3. STRAIN ENERGY OF DOUBLE-T BEAM
4. FINITE ELEMENTS FORMULATION
5. NUMERICAL EXAMPLES
6. CONCLUSION
REFERENCES
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UCI(KEPA) : I410-ECN-0101-2012-531-003946360