Stress of Carbon Fiber Reinforced Polymer Tendons in Prestressed Simply Supported Beams

Abstract:

The law of stress increment of unbonded carbon fiber reinforced polymer (CFRP) tendons at service stage and flexural load bearing capacity limit state is unclear, so it is difficult to accurately calculate crack width, deflection and load bearing capacity. In order to calculate the stress of CFRP tendons, deformation compatibility condition and moment-curvature analysis method are used to compile nonlinear full-range analysis programs of simply supported concrete beam partially prestressed with unbonded CFRP tendons. The computing results of stress in CFRP tendons are in good agreement with the tested results as a whole, so it indicates that the simulation analysis programs are reliable.

• Periodical: Advanced Materials Research (Volume 689)
• Pages: 353-357
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.689.353
• Online since: May 2013
• Authors: Chong Xi Bai, Xin Yan Shao, Qiu Ping Wang
• Keywords: CFRP Tendons, Prestressed Concrete, Simply Supported Beams, Simulation Analysis Programs, Stress Increment, Unbonded

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