← Research area: UHPC members
Related outputs
Advanced concrete · Structural testing
Shear behavior of UHPC beams
Investigating shear transfer and the combined contribution of fibers and stirrups in ultra-high-performance concrete beams.

Engineering question
How do shear-span ratio, fibers, and stirrups influence the mechanisms that govern UHPC beam behavior?
- Research context
- McGill University
- Period
- Postdoctoral research
- Research collaborators
- Z. Quan and Yi Shao
My contribution
- Investigating transitions between beam action and arch action in UHPC beams without stirrups.
- Combining structural experiments with analytical predictions of shear response.
- Examining fiber and stirrup configurations to improve material use and shear performance.
Findings and relevance
The studies clarify changes in shear-transfer mechanisms and explore reinforcement configurations for UHPC beams. The work on failure-mechanism transition received a 2026 Featured Paper Award from Engineering Structures.
Continuing questions
Future interests include combining UHPC and FRP reinforcement in durable structural elements.
Publications
2026
Enhancing shear performance in UHPC beams through strategic fiber and stirrup integration
Hosseini, S. M., Quan, Z., and Shao, Y.
Engineering Structures, 348, 121810
2025
Transition of shear failure mechanism for non-stirrup ultra-high-performance concrete (UHPC) beams: experiments and predictions
Hosseini, S. M., Quan, Z., and Shao, Y.
Engineering Structures, 344, 121322
