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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 국제구조공학회 Structural Engineering and Mechanics, An Int'l Journal Structural Engineering and Mechanics, An Int'l Journal Vol.62 No.5
- 발행연도
- 2017.1
- 수록면
- 595 - 606 (12page)
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During their life span, post-tensioned concrete structures may be exposed to thermal loads. Therefore, there has been a growing interest in research on the advanced analysis and design of post-tensioned concrete slabs subjected to thermal loads. This paper investigates the structural behaviour of post-tensioned one-way spanning concrete slabs. A nonlinear finite element model for the analysis of post- tensioned unbonded and bonded concrete slabs at elevated temperatures was developed. The interface between the tendon and surrounding concrete was also modelled, allowing the tendon to retain its profile shape during the deformation of the slab. The load-deflection behaviour, load-force behaviour in the tendon, and the failure modes are presented. The numerical analysis was conducted by the finite element ANSYS software and was carried out on two different one-way concrete slabs chosen from literature. A parametric study was conducted to investigate the effect of several selected parameters on the overall behavior of post-tensioned one-way concrete slab. These parameters include the effect of tendon bonding, the effect of thermal loading and the effect of tendon profile. Comparison between uniform thermal loading and non-uniform thermal loading showed that restrained post tensioned slab with bottom surface hotter has smaller failure load capacity.
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참고문헌 (13)
참고문헌 신청
ANSYS / 2012 / ANSYS Help, Release 14. 5 / Copyright
Bailey, C. G. / 2009 / Fire tests on unbonded post-tensioned one-way concrete slabs / Magaz. Concrete Res 61(1):67~76
Bailey, C. G. / 2009 / Fire tests on bonded posttensioned concrete slabs / Eng. Struct 31(3):686~696
Ellobody, E. / 2009 / Modelling of unbonded post-tensioned concrete slabs under fire conditions / Fire Safe. J 44(2):159~167
European Committee for Standardization(CEB) / 1993 / Design of Steel Structures. Part 1. 1 : General Rules and Rules for Buildings, DD ENV, 1-1 / EC3
Bailey, C. G. / 2009 / Fire tests on unbonded post-tensioned one-way concrete slabs / Magaz. Concrete Res 61(1):67~76
Bailey, C. G. / 2009 / Fire tests on bonded posttensioned concrete slabs / Eng. Struct 31(3):686~696
Ellobody, E. / 2009 / Modelling of unbonded post-tensioned concrete slabs under fire conditions / Fire Safe. J 44(2):159~167
European Committee for Standardization(CEB) / 1993 / Design of Steel Structures. Part 1. 1 : General Rules and Rules for Buildings, DD ENV, 1-1 / EC3
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