engleski

Flexural stiffness analysis of RC beams strengthened with FRP sheets

In this study, theoretical analysis of flexural stiffness of the RC beams strengthened with FRP sheets is presented. Flexural static stiffness of the simply supported beams loaded with distributed load was investigated. Static stiffness of the beam was shown as a function of external load and deflection, hence the deflection analysis model was calculated first. Numerical deflection analysis model of the RC beam strengthened with FRP is based on the curvature analysis of cross sections along beam axis, wherein the curvature of each cross section is determined from the three point bending moment – curvature diagram. The paper is completed with deflection and stiffness comparison of non strengthened and strengthened beam.

RC beam, FRP Strengthening, Moment-curvature relation, Deflection analysis, Flexural stiffness rigidity analysis

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