First Diagonal Cracking and Ultimate Shear of Reactive Powder Concrete T-Beams without Stirrups

Abstract

The first diagonal cracking and ultimate shear load of reactive powder concrete (RPC) T-beams were investigated in this paper. Six beams were tested, and a simplified formulation for the first diagonal cracking capacity Vcr is proposed while the analytical model to predict the ultimate shear capacity Vu is formulated based on the two bounds theory (upper and lower bound). A fiber reinforcing parameter is constituted and used based on the Variable Engagement Model (VEM). The predicted values of Vcr and Vu are compared with the test results and give good agreements.

Keywords

• ultimate shear load
• first diagonal cracking
• Reactive Powder Concrete
• Tee Beams