Title:
Flexural Behavior of Reinforced UHPC Beams: Key Parameters and Design Considerations (Prepublished)
Author(s):
Giwan Noh, Seung Heon Lee, and Thomas H.-K. Kang
Publication:
Structural Journal
Volume:
Issue:
Appears on pages(s):
Keywords:
beam; flexural, reinforced UHPC; state-of-the-art review; structural design; ultra-high-performance concrete
DOI:
10.14359/51749375
Date:
12/8/2025
Abstract:
Ultra-high performance concrete (UHPC) is a forward-looking material ideal for use in large-scale civil infrastructure systems. However, due to its unique mix, when UHPC is used in actual structures in conjunction with materials like steel reinforcement, it may lead to unexpected behavior. Therefore, this study analyzed the behavior of reinforced UHPC (R-UHPC) for use in actual structures, focusing specifically on beams among various structural components, with a particular emphasis on their flexural behavior. For this purpose, the study collected and comprehensively analyzed experimental data from flexural tests of R-UHPC beams conducted to date, identifying basic mechanics, peculiarities, and considerations in structural design. This study highlights that, besides the commonly known longitudinal reinforcement ratio, numerous factors such as beam length, height, number of tension reinforcement layers, strength, etc., can influence the flexural behavior of R-UHPC beams and demonstrate how these elements impact the performance.