Flexural and shear behavior of steel-UHPC composite beams: a review

Benedetty C.A.; dos Santos V.B.; Krahl P.A.; Rossi A.; Silva F.D.A.; Cardoso D.C.T.; Martins C.H.

Flexural and shear behavior of steel-UHPC composite beams: a review

Tipo

Artigo de revisão

Data de publicação

2023

Periódico

Engineering Structures

Citações (Scopus)

35

Autores

Benedetty C.A.
dos Santos V.B.
Krahl P.A.
Rossi A.
Silva F.D.A.
Cardoso D.C.T.
Martins C.H.

Resumo

© 2023 Elsevier LtdSteel-Ultra-High Performance Concrete (UHPC) composite structures are a recent and innovative system with several applications. Steel-UHPC composite beams, for example, enable Accelerated Bridge Construction (ABC) due to the speed with which their components can be precast in the factory and practically installed on-site. Likewise, the improved properties of UHPC in terms of high compressive strength, ductility, toughness, and durability compared to Normal-Strength Concrete (NSC) allow for designing optimized slender cross-sections and, consequently, lower weight. Despite all the advantages offered by steel-UHPC composite beams, the study of their structural behavior began a few years ago, so there still need to be recommendations in the principal construction codes that regulate their use. In addition, review studies need to discuss the current state-of-the-art topic. This paper reviews the flexural behavior of steel-UHPC composite beams and the interaction of shear connectors at the interface through push-out tests. Two databases of push-out and flexural tests were built and discussed to address the main aspects that influence the behavior and performance of the composite system.

Assuntos Scopus

Composite beam , Composites structures , Concrete , Concrete composite beams , Concrete composites , Flexural behavior , Headed stud , Push-out tests , Shear behaviour , Shear connector