Sanyo SGP-E120J2GU2, User Manual

Page: 83 / 175

Design
D - 39
Bolt span
Short direction( l
1
)
l
1
= 㩷 㩷 1,000 mm 㩷 ………..70, 90 type 䋺 1,000
120, 150, 190 type 䋺 1,000
Long direction(
l
2
)
l
2
= 㩷 㩷 1,060 mm 㩷 ………..70, 90 type 䋺 1,060
120, 150, 190 type 䋺 1,060
Actual strength of the foundation bolts
Short term allowable tensile stress(f
t
)
f
t
=
㩷
176
㩷 㩷
N/mm
2
…
㩷
for SS400 f
t
:176
Short term allowable shear stress (f
s
)
f
s
=
㩷
99
㩷 㩷
N/mm
2
…
㩷
for SS400 f
s6
:132×0.75
Pull out load on one bolt
Short direction(R
b1
)
R
b1
= 㩷 㩷 = 㩷 1,614 N
Long direction(R
b2
)
R
b2
= 㩷 㩷 㩷 㩷 㩷 㩷 㩷 㩷 㩷 㩷 㩷 㩷 㩷 㩷 㩷 㩷 㩷 㩷 㩷 㩷 㩷 㩷 㩷 = 㩷 1,473 㩷 N
Foundation bolt shear stress(
)
=
㩷 㩷 㩷 㩷 㩷 㩷 㩷 㩷 㩷 㩷
=
㩷
15.6
㩷 㩷
N/mm
2
㩷
Foundation bolt tensile stress
Shor t direction(
1
)
1
=
㩷 㩷 㩷 㩷 㩷 㩷 㩷 㩷 㩷 㩷
=
㩷
14.3
㩷 㩷
N/mm
2
Long direction(
2
)
2
= 㩷 㩷 㩷 㩷 㩷 㩷 㩷 㩷 㩷 㩷 = 㩷 13.0 㩷 N/mm
2
Allowable tensile stress in a bolt subject to simultaneous tensile and shear stress(f
ts
)
f
ts
=1.4 f
t
-1.6 = 㩷 221.4 㩷 N/mm
2
Judgment
Tensile load
Short direction 䋺 if R
b1
<T
a
OK R
b1
= 㩷 1,614 㩷 < 㩷 T
a
= 11,760
Long direction
䋺
if R
b2
<T
a
OK R
b2
=
㩷
1,473
㩷
<
㩷
T
a
= 11,760
Shear stress
if < f
s
㩷
OK =
㩷
15.6
㩷
<
㩷
f
s
=
㩷
99
Tensile stress
short direction 䋺 if
1
< f
t
< 㩷 f
t
㩷
= 㩷 176
㩷 㩷 㩷 㩷 㩷 㩷 㩷 㩷 㩷 㩷 㩷 㩷 㩷 㩷 㩷 㩷 㩷 㩷 㩷 㩷 OK
1
= 㩷 14.3 㩷
㩷 㩷 㩷 㩷 㩷 㩷
1
< f
ts
< 㩷 f
ts
= 㩷 221.4
Long direction
䋺 if
2
< f
t
< 㩷 f
t
㩷
= 㩷 176
㩷 㩷 㩷 㩷 㩷 㩷 㩷 㩷 㩷 㩷 㩷 㩷 㩷 㩷 㩷 㩷 㩷 㩷 㩷 㩷 OK
2
= 㩷 13.0 㩷
㩷 㩷 㩷 㩷 㩷 㩷
2
< f
ts
< 㩷 f
ts
= 㩷 221.4
F
H
h
h
G
–(W - F
V
)
l
G1
l
1
n
1
F
H G
- ( W -F
V
)
l
G2
l
2
n
2
F
H
N A
R
b1
A
R
b2
A
11
12
3
δ
δ
δ
δ
δ
δ
τ
τ
τ
δ δ
δ δ
τ τ
7. Center of gravity position and earthquake resistant design