Experimental Study and Finite Element Analysis of Concrete Simple Supported Beams Strengthened with Externally Prestressed CFRP Tendons

Feng Xu; Le Huang

doi:10.4028/www.scientific.net/AMM.405-408.1017

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 405-408Experimental Study and Finite Element Analysis of...

Experimental Study and Finite Element Analysis of Concrete Simple Supported Beams Strengthened with Externally Prestressed CFRP Tendons

Abstract:

The concrete simple supported beams were strengthened by an innovative device mainly includes oblique screws and linear CFRP tendons. A static experimental study and finite element analysis were conducted to research the flexural capacity and stress changes of CFRP tendons of strengthened beams, and the contrastive analysis was explored between finite element calculation results and test results. The results indicate that the strengthen system can significantly improve the flexural capacity of concrete beams, there is basically a linear relationship between the stress increment of CFRP tendon and the deflection of midspan section, and the finite element calculation value is in agreement with the test results. Based on this, the stress of concrete near holes was analysed using finite element method (FEM), which can provide a reference for practical engineering application.

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Periodical:

Applied Mechanics and Materials (Volumes 405-408)

Pages:

1017-1021

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.405-408.1017

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Online since:

September 2013

Authors:

Feng Xu*, Le Huang

Keywords:

CFRP Tendon, Concrete Simple Supported Beam, Experimental Study, External Prestressing, Finite Element Analysis (FEA), Strengthening

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