TY - JOUR
T1 - Flexural and shear behavior of steel-UHPC composite beams
T2 - a review
AU - Benedetty, Carlos Alberto
AU - dos Santos, Vinicius Brother
AU - Krahl, Pablo Augusto
AU - Rossi, Alexandre
AU - Silva, Flávio de Andrade
AU - Cardoso, Daniel Carlos Taissum
AU - Martins, Carlos Humberto
N1 - Publisher Copyright:
© 2023 Elsevier Ltd
PY - 2023/10/15
Y1 - 2023/10/15
N2 - Steel-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.
AB - Steel-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.
KW - Composite beams
KW - Concrete
KW - Headed stud
KW - Shear connectors
KW - Steel
KW - UHPC
UR - http://www.scopus.com/inward/record.url?scp=85166030046&partnerID=8YFLogxK
U2 - 10.1016/j.engstruct.2023.116649
DO - 10.1016/j.engstruct.2023.116649
M3 - Review article
AN - SCOPUS:85166030046
SN - 0141-0296
VL - 293
JO - Engineering Structures
JF - Engineering Structures
M1 - 116649
ER -