Influence of Shear Span-to-Effective Depth Ratio on Behavior of High-Strength Reinforced Concrete Beams

摘要: The shear span-to-effective depth ratio (a/d) is one of the factors governing behavior reinforced concrete (RC) beams, with or without reinforcement. In high-strength (HSC), cracks may propagate between aggregate particles and result in a brittle failure which against philosophy most design guidelines. experimental results six HSC reinforcement, tested under four-point bending a/d ranged from 2.0 to 3.0 are presented compared different model equations codes. has higher influence on strength beams reinforcement than Most resistance prediction models underestimate but overpredict However, fib Model code 2010 accurately predicted for all within an appropriate level approximation (LoA).