Study of Tension Field Expansion on Composite Steel Plate Due to Fiber Reinforced Polymer Layer Action

Abstract:

Fiber Reinforced Polymer (FRP) strengthening of structures has been gaining increasing interest, traditionally in application with concrete structures, and more recently in application with steel structures. Because of their unique blend of properties, composites reinforced with high performance fibers find use in many structural applications. This paper defines the effect of FRP layers on behaviour of steel plate. In this regard, some models are selected and tested by rigid frame and actuator. The experimental model is connected to a rigid frame. The FRP layer acts similar to a lateral support for the steel plate, and possesses the intelligent behavior (specified control for establishing of flexural line and further leaning towards post buckling condition), meaning that the FRP layer can lead the local flexural deflection towards the total flexure of the steel plate and effectively contributes more in resisting the shear stresses and extension of post flexure lines in steel plate and formation of composite plate. This is due to involvement of more area of steel plate to resisting of the imposed stresses. Result shows, the FRP layers would increase the stiffness, energy absorption, shear capacity and will be decreasing the ductility of steel plate as compared with composited steel plate with other materials as reinforcement concrete.

• Periodical: Advanced Materials Research (Volumes 875-877)
• Pages: 685-689
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.875-877.685
• Online since: February 2014
• Authors: Alireza Rahai, Farzad Hatami
• Keywords: Composite Plate, FRP Layer, Post-Buckling, Steel Plate, Tension Field Action

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