Figure 8. Results along a beam with continuity Figure 9.
Results along one span beam
(Crack opening) (Crack opening)
Figure 11. Stresses in the rebars of the single span
beam [t/m2]
Figure 10. Stresses in the rebars of the continuous
beam [t/m2]
Crack development direction at the free support zone
was hardly influenced by the conditions at the sec-
ond support of the span with continuity and stayed in
the order of 45 degrees.
However, development of cracks in internal support
zones, with flexural bending moments, stretched into
a broader range toward the middle of the span, even
up to 50% more than the exterior support range.
Those inclinations of the cracks were more moder-
ate, with smaller angles to the beam axis; consistent
with the described in Figure 3.
Quantitative determination requires experimental
testing, which will be later in this research, as it is
continued.