A Review of the Effect of Shear Reinforcement on the Vibration Performance of RC Structures

Abstract

Reinforced concrete (RC) structures are frequently exposed to vibration loading generated by dynamic actions such as earthquakes, wind, machine-induced vibrations, traffic loads, and blast effects. These repeated or transient vibrations induce complex stress conditions that influence cracking patterns, stiffness degradation, fatigue damage, and overall serviceability of the structure. The role of shear reinforcement is particularly significant in such conditions, as it not only provides resistance against shear failure but also enhances the ductility, energy dissipation capacity, and post-cracking behavior of structural members. Past research has examined the interaction between vibration loading and RC response through experimental testing, analytical modeling, and numerical simulations, highlighting that insufficient shear reinforcement can lead to premature brittle failures, whereas optimized stirrup spacing and detailing improve structural resilience. Studies further demonstrate that vibration loading amplifies diagonal cracking and bond-slip effects, making shear reinforcement a key factor in sustaining load-carrying capacity and prolonging fatigue life. This literature paper synthesizes findings from previous works to evaluate the behavior of RC beams, slabs, and frames under various vibration scenarios, with emphasis on the effect of shear reinforcement on strength, ductility, and durability. The review also identifies existing knowledge gaps and provides directions for future research on performance-based design and advanced shear detailing for RC structures in vibration-prone environments.