Calculation Methods of CFRP Tendons Stress in Two-Span Prestressed Continuous Beams

Chong Xi Bai; Xin Yan Shao; Qiu Ping Wang

doi:10.4028/www.scientific.net/AMR.859.60

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 859Calculation Methods of CFRP Tendons Stress in...

Calculation Methods of CFRP Tendons Stress in Two-Span Prestressed Continuous Beams

Abstract:

Crack width, deflection and load bearing capacity of two-span concrete continuous beams partially prestressed with unbonded carbon fiber reinforced polymer (CFRP) tendons can be calculated accurately, the first premise is to calculate reasonably the stress increment of CFRP tendons. However, the law of stress increment of unbonded tendons is unclear. Moment-curvature analysis method and deformation compatibility condition were used to compile nonlinear full-range analysis programs of this kind of continuous beam. The comparison between simulated results and tested results of stress in CFRP tendons indicates that the simulation analysis programs are reliable.

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Periodical:

Advanced Materials Research (Volume 859)

Pages:

60-63

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.859.60

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Online since:

December 2013

Authors:

Chong Xi Bai*, Xin Yan Shao, Qiu Ping Wang

Keywords:

CFRP Tendons, Continuous Beam, Simulation Analysis, Stress, Unbonded Prestressed

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