STUDY ON CALCULATION METHODS OF SHEAR CAPACITY CONTRIBUTION OF FRP STRENGTHENED CONCRETE BOX BEAMS

Abstract

Abstract: The shear capacity calculation methods of the RC beam strengthened with FRP at present were introduced. Considering the influence of distribution of the oblique crack of concrete box girder on FRP strain distribution and the influence of the lateral deformation of the web on the bonding performance of the interface of FRP with concrete, the method for the determination of the average effective strain of concrete box beam strengthened with FRP, and the calculation method for the shear capacity contribution of FRP of the strengthened concrete box beam were proposed. Through the comparison with the experimental results, the calculation results of the method proposed in this paper are in good agreement with experimental values.

Key words: FRP, reinforcement, box girder, shear capacity contribution, calculation method

CLC Number:

TB332
TU375

ZHANG Peng-yang, YAO Yong, YANG Yong-xin, ZHANG Yan-hong. STUDY ON CALCULATION METHODS OF SHEAR CAPACITY CONTRIBUTION OF FRP STRENGTHENED CONCRETE BOX BEAMS[J]. COMPOSITES SCIENCE AND ENGINEERING, 2014, 0(5): 41-45.

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