Finite element analysis of strengthened RC beams in shear with aluminum plates

作者: A Abu-Obeidah , RA Hawileh , JA Abdalla , None

DOI: 10.1016/J.COMPSTRUC.2014.10.009

关键词: Structural engineeringAlloyComposite materialDeflection (engineering)Boundary value problemFinite element methodMaterials scienceFibre-reinforced plasticMaterial propertiesFlexural strengthAluminium

摘要: This paper presents the development of a 3D nonlinear finite element (FE) model to capture and predict response shear deficient simply supported reinforced concrete (RC) beams strengthened externally with aluminum alloy plates. Five FE models were developed based on experimental tests conducted by authors in previous investigation. The program included four RC bonded structural plates grade 5083-0 tested under four-point loading failure. use this material instead conventional fiber polymer (FRP) materials seemed be very promising enhancing both strength ductility specimens. designed fail then different strip spacing orientation. have exact geometry, properties boundary conditions that employed constitutive laws for tension compression, yielding flexural steel reinforcement. also incorporated interfacial bond behavior at interface. predicted results load-midspan deflection are compared measured data. Close agreement was found between all stages For maximum load mid-span deflection, it is observed Mean Absolute Percent Error (MAPE) prediction five specimens 1.19% 4.31% Normalized Square (NMSE) 0.0005 0.004, respectively. It could concluded used future investigations performance configurations orientations.

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