Theoretical Model for Ultimate Moment Capacity of RC Beams Strengthened by Unbonded Reinforcement

Experimental and analytical investigation into the flexural performance of RC beams with partially and fully bonded NSM FRP bars/strips

“…This may be attributed to the fact that the NSM reinforcement in the fully bonded strengthened beam behaved as a beam action, while the NSM reinforcement in the partial bonded strengthened beam behaves as a combination of tie and beam action. The behavior of unbonded reinforcement as a combination of tie and beam action was previously examined by Sallam et al [33][34] and Rafeeqi [35][36]. This finding is in agreement with previous work studied the effect of partially bonded reinforcement in strengthened steel beams [37] or RC beams [30].…”

Development of the procedure for the estimation of reliability of reinforced concrete beams, strengthened by building up the stretched reinforcing bars under load

“…The effectiveness of application of different methods of strengthening of reinforced concrete bending elements is one of the urgent tasks of research at present. Works [1][2][3][4] investigate the real stressed state of reinforced concrete beams strengthened by different methods under the action of load. There is also a search for options to improve efficiency of strengthening methods.…”