Experimental Study on Shear Performance of Post-Tensioning Prestressed Concrete Beams with Locally Corroded Steel Strands

To study the effect of local corrosion prestressed steel strands on shear failure mode and bearing capacity concrete beams, unilateral in four post-tensioning (PC) beams are corroded, test PC performed. Moreover, a simplified calculation method for with diagonal bars is proposed considering cross-sectional reduction bars, degradation mechanical properties, damage concrete. Results shows that crack propagation unrelated to when span ratio beam same. The decreases increase rate, but decreasing rate lower than increasing rate. growth stirrup stress much greater load after tension compression loss cracking, yield can be used as sign ultimate beam. In addition, by comparing experimental numerical simulation results, high accuracy.