DefinePK

Abstract

This paper is an analytical study of spliced ultra high strength concrete (UHSC) beams using finite element analysis to predict their load-deflection response. Two UHSC beams model was generated and analyzed by ANSYS15 and the results compared with the experimental results as a verification process. The resulted load deflection curve from the analytical work compared well to experimental results. The average difference between the two works was 98% in failure load results, and it was 85% in deflection results. A parametric study was then performed by modeling and analyzing another three non spliced and six spliced UHSC beams with three different steel fiber volumetric ratios (1.5% 1%, and 0.5%) and two different lap splice lengths (10 and 15 times diameter of bar). The obtained analytical results indicated that the volumetric steel fiber ratio has significant effect on the adequate lap splice length in UHSC beams.