Experimental Investigation on Flexural Behavior of Reinforced Ultra High Performance Concrete Low-Profile T-Beams

• DOI: 10.1186/s40069-019-0380-x
• Publication Date: 2020-01-21T00:06:01Z
• Authors: Minghong Qiu; Xudong Shao; Kay Wille; Banfu Yan; Jiajia Wu
• Keywords: Fiber Reinforced Concrete; Ductility (Earth science); Structural material; Ultimate load

Abstract The flexural behavioral properties of ultra high performance concrete (UHPC) low-profile T-beams reinforced with a combination steel fibers and reinforcing bars were investigated in this paper. Five large scale tested analyzed regarding their deflection, ductility, strain, curvature, load capacity crack development. experimental variables include the reinforcement ratio, slenderness (length to diameter ratio) fiber reinforcements, type. experiments showed that all specimens exhibit failure yielding excessive expansion crack, compression zone UHPC T-beam is not crushed because compressive strength area UHPC. In addition, it was concluded using hooked-end can effectively increase specimen’s durability-based cracking comparison straight same slenderness, whereas ratio have little influence on this. Increasing instead bending stiffness specimen, as well reduces width at comparable applied load. A model established compute ultimate prediction agrees results present published investigations.