Experimental Investigation of Shear Behavior of UHPC Considering Axial Load Effects скачать в хорошем качестве

Experimental Investigation of Shear Behavior of UHPC Considering Axial Load Effects

Experimental Investigation of Shear Behavior of Ultra-High Performance Concrete Considering Axial Load Effects Presented By: Abdulrahman Salah, University of Houston As Ultra-High-Performance Concrete (UHPC) is being applied in several structural systems and expanding into new applications in North America, understanding its shear behavior is critical to avoid failures that could be induced by diagonal cracks. Shear-dominated mechanisms in a number of applications can be affected by the tension and compression fields within the UHPC members. Assessing the vulnerability of UHPC members to combined shear and axial loads is important for the development of structural design guidance and key to UHPC’s wider acceptance in practice. This research study utilized the unique capabilities of the Universal Panel Tester at the University of Houston to better understand the pure shear and combined axial-shear load behavior using UHPC panels representing full-scale elements in structural members. The Universal Panel Tester servo-control system’s ability to capture the entire pre-peak and post-peak response of bi-axially loaded elements allowed for a comprehensive understanding of the shear behavior of UHPC at different stages of loading. Experimental results will be used in the development of UHPC shear design formulas.