Civil Engineering Reference
In-Depth Information
The end column analysis results are shown in Fig. A.32. The horizontal end
column movements are nearly equal to those of the retaining wall at the other end
of the rigid frame, given the small effect of the soil restraint on the thermal
movements of the structure.
10
8
U
ha
U
hec1
U
hcc1
U
hec2
U
hcc2
U
hec3
15 bays
6
L
b
= 10
ft
φ
= 30
o
4
2
S
c
/S
b
= 4
0
-0.03
-0.02
-0.01
0
0.01
0.02
0.03
0.04
0.05
Horiz ontal End Column Movement, U
h
, ft
10
15 bays
8
L
b
= 10 ft
φ
M
a
M
ec1
M
cc1
M
ec2
M
cc
2
M
ec3
=
30
o
6
S
c
/S
b
= 4
4
2
0
-40
-30
-20
-10
0
10
20
30
40
End Column Moment, M, kips-ft
Fig. A.32
End Column Analysis Results (Fifteen-Bay, L
b
=10 ft, S
c
/S
b
= 4)
The end column bending moments developed during temperature cycles are
also nearly symmetrical about the moments found at initial backfill stage. The
maximum moment magnitude is found at top of the column during last expansion
cycle slightly larger and opposite to its counterpart developed during contraction
cycles.
A.1.2 Backfill Soil with 40º Internal Friction Angle
The analysis results of single story rigid frames retaining the backfill soil with the
40º internal friction angle are presented herein. The results are presented in four
