Page 161 - Riem-Vol6_nº3

506 IBRACON Structures and Materials Journal • 2013 • vol. 6 • nº 3
Numerical approach of the bond stress behavior of steel bars embedded in self-compacting concrete
and in ordinary concrete using beam models
of each beam without the steel bar and the steel hinge are shown.
According to the numerical results, the variation of the stress-
es at the steel bar is noticed, mainly for the beam with the 16
mm steel bar. Also, the stress at the steel-concrete interface
shows a gradual variation, beginning at the start of the de-
velopment length until the other edge. The stresses shown
in Figure 12 are in kN/cm2 and the positive sign indicates
tension.
Figure 13 shows the stress variation from the concrete and con-
tact elements.
Figure 9 – Numerical approaches of the experimental tests for SCC2 and OC2
Table 5 – Comparison between numerical and experimental results