Civil Engineering Reference
In-Depth Information
The horizontal movement of the retaining wall shown in Fig. 8.6 is
considerably smaller than its counterpart presented in Fig. 8.2 earlier for frames of
lesser lateral stiffness. The retaining wall moments and shear forces, however, are
of nearly similar magnitudes. The variation of the wall bending moment with the
temperature cycles in the stiffer frame (Fig. 8.6) is noticeably larger than its
counterpart shown in Fig. 8.2. This result is also similar but less pronounced for
the wall shear force.
The lateral earth pressure developed behind the retaining wall with the varying
temperature cycles is shown in Fig. 8.7 and appears to be nearly 35% larger for
the bottom half of the structure than its counterpart shown in Fig. 8.3.
10
1 bay, L
b
= 10 ft
φ
= 30
o
σ
'
a
σ
'
ec1
σ
'cc1
σ
'
ec2
σ
'
cc2
σ
'
ec3
8
S
c
/S
b
= 4
6
4
2
0
0
0.2
0.4
0.6
0.8
1
1.2
'
h
, kips/ft
2
σ
Fig. 8.7
Retaining Wall Earth Pressure (Single Bay, L
b
= 10 ft, S
c
/S
b
= 4)
10
1 bay, L
b
= 10 ft
φ
U
ha
U
hec1
U
hcc1
U
hec2
U
hcc2
U
hec3
8
= 30
o
S
c
/S
b
= 4
6
4
2
0
-0.03
-0.02
-0.01
0
0.01
0.02
0.03
0.04
0.05
Horizontal End Column Movement, U
h
, ft
Fig. 8.8
Horizontal End Column Displacement (Single Bay, L
b
= 10 ft, S
c
/S
b
= 4)
