Abstract—The yield strength of stirrups is limited to 420MPa and 600MPa in the ACI 318-14 standard and EC2-02 respectively. In this study, four beams were tested to investigate the influence of high strength stirrups on the shear behavior of PSC beams. For extension of this study, simulations to obtain the shear behavior of prestressed concrete beams with various yield strength of stirrups was conducted using a finite element analytical program (RCAHEST). The experimental and analytical results indicated that the limitation on the yield strength of shear reinforcement for prestressed concrete beams in the ACI 318-14 design code was too conservative. The simulation result also indicated that it could be possible to increase the yield strength of shear reinforcement in the ACI 318-14 design code up to 610MPa. The shear strength of prestressed concrete beams with high strength stirrups did not proportionally increase with the increase of yield strength of stirrups.
 

Index Terms—failure modes, high strength steel bars, prestressed concrete beams, shear strength

Cite: Hye-Sun Lim, Byung-Koo Jun, Dong-Ik Shin, and Jung-Yoon Lee, "Shear Capacity of Post-Tensioning Pre-Stressed Concrete Beams with High Strength Stirrups," International Journal of Structural and Civil Engineering Research, Vol. 5, No. 4, pp. 258-264, November 2016. doi: 10.18178/ijscer.5.4.258-264