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Steel and Composite Structures
  Volume 31, Number 2, April25 2019 , pages 159-172

Parametric study of shear strength of CFRP strengthened end-web panels
Haitham A. Shalaby, Maha M. Hassan and Sherif S. Safar

    Strengthening of civil infrastructure with advanced composites have recently become one of the most popular methods. The use of Fiber Reinforced Polymer (FRP) strips plates and fabric for strengthening of reinforced concrete structures has well established design guidelines and standards. Research on the application of FRP composites to steel structures compared to concrete structures is limited, especially for shear strengthening applications. Whereas, there is a need for cost-effective system that could be used to strengthen steel high-way bridge girders to cope with losses due to corrosion in addition to continuous demands for increasing traffic loads. In this study, a parametric finite element study is performed to investigate the effect of applying thick CFRP strips diagonally on webs of plate girders on the shear strength of end-web panels. The study focuses on illustrating the effect of several geometric parameters on nominal shear strength. Hence, a formula is developed to determine the enhancement of shear strength gained upon the application of CFRP strips.
Key Words
    finite element; Carbon Fiber Reinforced Polymer (CFRP); plate girders; strengthening
(1) Haitham A. Shalaby, Maha M. Hassan, Sherif S. Safar:
Structural Engineering Department, Cairo University, Gamaet El Qahera Street,
Egypt;(2) Maha M. Hassan:
Civil Engineering Department, University of Prince Mugrin, Medina, Saudi Arabia
(On leave from Cairo University).

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