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Flexural and shear behavior of steel-UHPC composite beams: a review
Highlights The flexural behavior of steel-UHPC composite beams and the connector’s shear capacity were reviewed. Two databases of flexural tests of steel-UHPC composite beams and push-out tests were generated. The accuracy of shear capacity prediction models of connectors embedded in UHPC was analyzed. The failure modes of studs embedded in UHPC and steel-UHPC composite beams were discussed.
Abstract 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.
Flexural and shear behavior of steel-UHPC composite beams: a review
Highlights The flexural behavior of steel-UHPC composite beams and the connector’s shear capacity were reviewed. Two databases of flexural tests of steel-UHPC composite beams and push-out tests were generated. The accuracy of shear capacity prediction models of connectors embedded in UHPC was analyzed. The failure modes of studs embedded in UHPC and steel-UHPC composite beams were discussed.
Abstract 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.
Flexural and shear behavior of steel-UHPC composite beams: a review
Benedetty, Carlos Alberto (author) / dos Santos, Vinicius Brother (author) / Krahl, Pablo Augusto (author) / Rossi, Alexandre (author) / Silva, Flávio de Andrade (author) / Cardoso, Daniel Carlos Taissum (author) / Martins, Carlos Humberto (author)
Engineering Structures ; 293
2023-07-19
Article (Journal)
Electronic Resource
English
Composite beams , Steel , Concrete , UHPC , Headed stud , Shear connectors
Flexural and shear behavior of steel-UHPC composite beams: a review
| Elsevier | 2023
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