An Investigation of FRP Composite Steel Shear Walls (CSSW) under Cyclic Loading on Laboratory

Abstract eng:
Composite steel shear wall (C.S.S.W.) is widely used in civil projects because of its good stiffness and deformability. Its main advantage is the deformability due to buckling behavior of the steel sheet. It can be utilized by either laying a concrete layer connected to the steel by shear studs or bonding a FRP sheet to the steel by epoxy resin to form a composite shear wall. This paper defines the effect of FRP layer on steel shear wall (S.S.W.) behavior by numerical & experimental studies. In this regard, 3 experimental specimens involved of steel shear wall, steel plate shear wall composited with FRP layer and flexible frame are built and tested using a rigid frame and actuator under cyclic loading with frequency of 1/60, 1, 2 and 3 Hz. Results show that the FRP plate acts similar to a lateral support for the steel plate. It was indicated that the FRP plate could extend shear stresses to whole area of the steel plate. And so, the FRP layer would increase the stiffness and energy absorption and will be insignificant decreasing the ductility of S.S.W. as compared with C.S.S.W.

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