Flexural behaviour of indeterminate concrete beams reinforced with FRP bars

Experimental study on the flexural deflections of concrete beam reinforced with Basalt FRP bars

“…Studies on the bond performance of FRP bars in concrete can be found in many documents [1][2][3][4]. Flexural behavior of RC beams with FRP bars has also been carried out by a lot of researchers [5,6].…”

Evaluation of bond stress-slip models for FRP reinforcing bars in concrete

“…Later, based on the BPE Model, Cosenza et al [1] developed the BPE Modified Model, which describes the bond stress-slip relationship for FRP rebars, with the effects of different FRP rebar surfaces taken into account. After that, the BPE Modified Model has been utilised in a number of studies on FRP-reinforced concrete structures [25][26][27]. The CMR Model was proposed to be used as an alternative to the BPE Model by Cosenza et al [14], but it is only for the ascending branch of the bond stress-slip curve.…”

“…It has an ascending curve that represents the bond mechanism of chemical adhesion, a plateau interval with constant maximum bond stress, a linear descending branch and a final horizontal branch with a constant frictional response [27]. The model is adopted by the CEB-FIP Model Code 1990 [28] for traditional steel reinforcements based on a series of parameters (i.e.…”

Rigid body moment–rotation mechanism for reinforced concrete beam hinges

“…1, has been recognised for over fifty years [1,7] and there is still much ongoing research on the topic [13][14][15][16][17][18][19][20][21][22]. However, there has been a major difficulty in developing a mechanism that can quantify the rotation of the hinge because of the concrete softening shown in the stress profile σ soft in Fig.…”