Investigation of Seismic Behavior of Reinforced Concrete Coupling Beams of coupled Shear Walls retrofitted by FRP

COM_CONTENT_CHEKIDEH :

Abstract:In a coupled-wall structure, the behavior of coupling beams significantly affects the overall system efficiency and performance.A reliable earthquake-resistant systemis represented by coupled shear walls, in which two vertical elements are interconnected by short and deep beams.

Well designed coupling beams can substantially enhance the strength, stiffness, and energy dissipation of the coupled walls compared to individual walls. In order to ensure this desired behavior, current design provisions for the seismic design of reinforced concrete (RC) coupling beams in building codes require substantial reinforcement detailing, leading to reinforcement congestion and construction difficulties. In this study, an alternative approach for the design of coupling beams was investigated through the use of high performance fiber reinforced cementitious composites using Abaqus.