Shear Failure Mechanism of RC Beams Using Ultra-High-Strength Fiber-Reinforced Concrete (SUQCEM) Precast Formworks

摘要

This paper describes the results of an experimental study and nonlinear finite element method (FEM) analyses in order to examine the shear failure mechanism of reinforced concrete (RC) beams using Ultra High Strength Fiber Reinforced Concrete (SUQCEM) precast formworks by considering the effects of using SUQCEM precast formworks, and with and without transverse reinforcement. The experimental results indicated that SUQCEM precast formworks enhanced shear carrying capacity of RC beams. Moreover, the RC beam with the transverse reinforcement in SUQCEM precast formworks can provide the highest shear carrying capacity. It is proven that the transverse reinforcements can work efficiently with SUQCEM precast formworks. In addition, the shear resistance mechanisms and evaluation methods for shear carrying capacity of RC beams using SUQCEM formworks were discussed in this paper.