Numerical Modeling and Design Method for Reinforced Polyvinyl-Alcohol-Engineered Cementitious Composite Beams in Bending

The polyvinyl-alcohol-engineered cementitious composite (PVA-ECC) is a superior material when used for tension and flexural loading. utilization of PVA-ECC in the zone can prevent development wide cracks increase resistance reinforced members. In this paper, nonlinear finite element model established to simulate behavior beams bending. model, constitutive models compression are employed by simplifying them as piece-wise linear models, bond between reinforcing bar also considered. load–deflection curve failure mode be obtained from model. Comparisons numerical experimental results show that developed estimate ultimate load with reasonably good accuracy. After evaluating accuracy parameter analysis conducted investigate effects reinforcement ratio, steel strength grade, mechanical properties on beams. conclude ratio peak load, stiffness, deflection obvious while influence grade mainly load. tensile localization strain affects ductility beam. Furthermore, design method proposed based plane-section assumption calculate beams, which contribution moment beam sections existing methods indicate predicted more accurately considering zone.