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This paper presents the results of an experimental investigation on the response of reinforced concrete box beam under combined actions of bending moment, shear and cyclic torque, strengthened with externally bonded carbon fiber reinforced polymer sheets (CFS). Three strengthened box beams and one reference box beam were tested. The main parameters of this experiment were the amount of CFS and the...
A mathematical model is developed to investigate the torsional behaviour of reinforced concrete box beams strengthened with carbon fiber sheets under combined actions of torque, bending and shear. The new method is based on the diagonal compression field theory. Thirty-seven equations are derived from equilibrium, compatibility, deformation corresponding, and materials conditions to solve the problem...
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