Civil Engineering Reference
In-Depth Information
4m
0.5
m
4m
1.0
m
6m
F
IGURE
19.7
Slab
of Ex. 19.2
4m
j
f
Axis of
rotation for
panel A
x
n
a
p
f
0.5
m
B
2m
g
1.2
m
1.0
m
A
h
f
e
1
x
C
2m
d
q
k
2
x
F
IGURE
19.8
Yield
line pattern for the
slab of Ex. 19.2
6m
The slab is not isotropic so that we shall employ the result of Eq. (19.14) to determine
the internal virtual work due to the ultimate moments in the different parts of the
slab. Therefore, for each yield line we need to determine its projection on a line
perpendicular to the reinforcement and the corresponding radius of rotation. We
shall adopt a methodical approach.
