Civil Engineering Reference
In-Depth Information
Case 3 (ONLY FIBERS). Beams ordered by f
R3
2.50
12.00
CONSERVATIVE
2.25
10.00
2.00
8.00
1.75
1.50
6.00
1.25
4.00
1.00
2.00
0.75
UNCONSERVATIVE
0.50
0.00
fr3 (Reinforced beams)
fr3 (Prestressed beams)
SM (EHE-08)
SM (MC2010)
SM (RILEM)
Case 4 (STIRRUPS + FIBERS). Beams ordered by f
R3
2.00
12.00
CONSERVATIVE
1.75
10.00
1.50
8.00
1.25
6.00
1.00
4.00
0.75
2.00
UNCONSERVATIVE
0.50
0.00
fr3 (Reinforced beams)
fr3 (Prestressed beams)
SM (EHE-08)
SM (MC2010)
SM (RILEM)
Fig. 8.45
Influence of the residual tensile strength (f
R3
) on shear safety margins
Unfortunately, although a lot of beams were included in the database, it was not
possible to study the in
uence that each parameter has on the shear safety margin of
each Code, but also the in
fl
uence of some interactions between these parameters
that seem to be particularly important.
The analyses performed on the database allowed observing that existing building
Codes can be signi
fl
cantly improved and that every time new concrete matrices are
developed with enhanced mechanical properties, the existing Codes may be no
longer suitable.
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