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Mitsubishi Electric S Series Manual page 110

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OUTDOOR UNIT
Earthquake-proof strength analysis <Anchor bolt>
S Series Inverter Outdoor unit
1.Type:
2.Model name:
SUZ-KA71VA
3.Specification
(1) Unit mass
(2) Anchor bolt
1.The total number of bolts.
2.The size and shape.
3.The axis section area per one bolt.
4.The total number of bolts in one side which be pulled stronger when the unit inverted.
(3) The height between the installing surface and the center of gravity of the unit
(4) The bolt-span from the examination angle
(5) The distance between the center of bolt and the center of gravity of the unit
4.The examination calculation (by rounding off to the first decimal place of each item)
(1) The horizontal seismic coeffcient for designing
(2) The vertical seismic coefficient for designing
(3) The horizontal earthquake forces for designing
(4) The vertical earthquake forces for designing
(5) The withdrawal strength of the anchor bolt
(6) The shear forces of the anchor bolt
(7) The stress arising to the anchor bolt
1.The tensile stress.
2.The shearing stress.
3.The stress when affected by both the shearing and the tensile at the same time. fts=1.4ft-1.6 =
(8) The construction way of the anchor bolt
1
T .
h
e
c
o
n
t s
u r
t c
o i
n
w
a
y
f o
h t
e
a
n
c
2
T .
h
e
t
i h
k c
n
e
s s
f o
h t
e
c
o
n
r c
t e
. e
3
T .
h
e
e l
n
g
h t
f o
b
r u
e i
d
p
a
t r
f o
b
o
. t l
4
T .
h
e
p
r e
m
i
s s
b i
e l
i w
h t
d
a r
w
l a
w
e
g i
Since the results from the examination above, the anchor bolt has enough strength
B-110
Fh Hg-(W 9.8-Fv) Lg
Rb=
L Nt
=
2.6
MPa
h
r o
b
o
. t l
h
. t
840
540
G
500
W=
58
kg
N
=
4
= "
M
1
0
y t
p
e
A
=
7
8
2
mm
=
Nt=
2
Hg=
340
mm= 0.340 m
L
=
3
6
0
m
m
=
Lg=
165
mm(Lg L/2)= 0.165 m
K
h
=
1
0 .
K
v
=
K
h
2 /
=
0
5 .
F
h
=
K
h
W 9.8=
568.4
N
F
v
=
K
v
W 9.8=
284.2
N
203.3
N
Q
=
F
h
N /
=
1
4
2
1 .
N
=Rb/A=
2.6
MPa ft=176.4MPa
=Q/A=
1.8
MPa fs=132.3MPa
244.1
MPa
fts=
244.1
MPa
=
B
o
x
e
d
J
y t
p
e
a
n
c
h
r o
=
1
2
0
m
m
=
=
7
0
m
m
=
T
a
=
3
1
3
6
N
330
G
165
360
S series
78×10
-6
2
m
0
3 .
6
0
m
0
1 .
2
0
m
0
0 .
7
0
m
Rb=
203
N
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