NONLINEAR FEM ANALYSIS OF RC BEAM STRENGTHENED WITH FERROCEMENT MORTAR

Ferrocement motar technology is an efficient method to reinforce RC beam.It can significantly increase the load-bearing capacity,deflection capacity and crack-resisting behavior.Based on experimental researches of eight RC beams strengthened with ferrocement motar a finite element method is employed to analyze the influence of tension reinforcement ratio,stirrup characteristic value and height-width ratio on the incremental amplitude of ultimate load.The rule of load-deflection curves of under-reinforced and over-reinforced beam is initially investigated.A computational expression of load-bearing capacity and flexural rigidity of RC beam strengthened with ferrocement motar is proposed based on the experimental and analytical results.