Civil Engineering Reference
In-Depth Information
2
3
sl
c
κ ⋅
GA
o
⋅ ψ − χ ⋅ λ
W
⋅
i
s
i
s
(Eq. 3.13)
δ
i
= α
+ β
30
A
0
=
(Eq. 3.25)
3
1
l
c
+
(
)
(
)
I
c
l
c
I
b
l
b
(
)
()
b
+1
b
κ
=
3
α
=
1
.
17
Hydrostatic Pressure Distri-
bution (Eq. 9)
λ
=
0
ψ
=
1
7
β
=
−
χ
=
0
8
α
=
0
.
96
κ
=
3
Seismic Earth Pressure Dis-
tribution (Eq. 10)
9
ψ
=
2
λ
=
10
χ
=
3
β
=
1
α
=
1
.
05
κ
=
2
Uniform Earth Pressure Dis-
tribution (Eq. 11)
9
ψ
=
1
λ
=
10
χ
=
1
β
=
0
Semi-Elliptical Earth Pres-
sure Distribution (Eq. 12)
α
=
1
02
κ
=
2
7
λ
=
ψ
=
1
11
2
χ
=
1
β
=
−
3
α
=
1
03
κ
=
2
4
Undefined Earth Pressure
Distribution
λ
=
ψ
=
1
5
2
χ
=
1
β
=
−
5
δ
i
Lateral drift at
i'th
story;
W
= Total Load;
s
= No. of Stories;
i
= Story from the top (
i= 0
at
top) top;
lc
= Length of Column;
G
= Shear modulus;
Ao
= Equivilant Area
Fig. 3.5
Approximate Story Drift of Low Rise Rigidly Framed Structure when H/L ≤ 5
(Iskander et al. 2012b)
