Articles

Experimental Study of Shear Behavior of UHPC Considering Axial Load Effects

---

Abstract

To prevent brittle failures of Ultra-High-Performance Concrete (UHPC) members due to diagonal shear cracks, it is crucial to better understand the shear-dominated mechanisms of UHPC. These mechanisms can be affected by the tension and compression fields developed in UHPC, which is investigated in this study through experiments of combined shear and axial loading. The experimental work is carried out with the Universal Panel Tester (UPT) at the University of Houston, where three unreinforced UHPC panel elements are tested, representing elements cut out from full-scale UHPC structures. Via UPT, characterization of the state of stress within one element is used to understand the shear behavior of the full structure. The key test variable in the three tests is the level of axial load applied to the panel elements, which varies from tension to compression. Future work will synthesize the experimental results to inform the development of shear design equations with consideration of axial load effects.

Keywords: UHPC, shear design, pure shear, axial load effects

How to Cite:

Salah, A., Shahin, N. & Kalliontzis, D., (2023) “Experimental Study of Shear Behavior of UHPC Considering Axial Load Effects”, International Interactive Symposium on Ultra-High Performance Concrete 3(1): 3. doi: https://doi.org/10.21838/uhpc.16637

Rights: © 2023 The Author(s). All rights reserved.