Civil Engineering Reference
In-Depth Information
Figure 5.26
Stresses (MPa) and strains for
ε
d
=−
0
.
0005 (at peak strength in example problem 5.4)
The Mohr circles for stresses on the concrete element, in the steel grid, and on the PC
element, as well as the Mohr circle for strains, are all plotted in Figure 5.26 for the selected
strain of
ε
d
=−
0.0005. In order to plot these Mohr circles, the following additional stresses
are calculated:
σ
−
ρ
f
=
2
.
13
−
4
.
26
=−
2
.
13 MPa
σ
t
−
ρ
t
f
t
=−
2
.
13
−
4
.
26
=−
6
.
39 MPa
σ
−
σ
t
2
2
σ
+
σ
t
2
2
t
σ
1
=
+
+
τ
2
2
2
.
13
−
2
.
13
.
13
+
2
.
13
=
+
+
3
.
69
2
2
2
=
+
.
=
.
0
4
26
4
26 MPa
σ
2
=
0
−
4
.
26
=−
4
.
26 MPa
