New model advances understanding of stress–strain behavior in ultra-high-performance concrete

A recent study published in Engineering has unveiled a novel analysis-oriented stress–strain model that promises to improve the way engineers understand and design with ultra-high-performance concrete (UHPC) confined by fiber-reinforced polymers (FRP). This advancement in concrete research, led by S.S. Zhang, J.J. Wang, Guan Lin, and X.F. Nie, provides a deeper insight into the compressive behavior of FRP-confined UHPC, addressing a critical gap in current structural engineering models.

UHPC has gained prominence in modern construction due to its exceptional strength and durability. However, understanding its behavior when confined with FRP materials has remained a complex challenge. Traditional models have successfully addressed the stress–strain relationships for normal-strength concrete (NSC) confined by FRP, but these models fall short when applied to UHPC.

The study, conducted ...