Sanyo ECO G SGP-EW120M2G2W, Technical Data Manual

Page: 73 / 115

System Design
7. Center-of-gravity and earthquake resistance
D-42
7) Bolt span
End-on direction (L
1
) L
1
= 1,000 mm
Broadside direction (L
2
) L
2
= 1,014 mm
8) Actual strength of anchor bolts
Short-term allowable tensile stress (f
t
) f
t
= 176 N/mm
2
for SS400, f
t
= 176
Short-term allowable shear stress (f
s
) f
s
= 99 N/mm
2
for SS400, f
s
= 132 x 0.75
9) Pull-out load on one bolt
End-on direction (R
b1
) R
b1
= = 1,910 N
Broadside direction (R
b2
) R
b2
= = 1,754 N
10) Anchor bolt shear stress ( )
τ
= = 18.4 N/mm
2
11) Mounting bolt tensile stress
End-on direction ( δ
1
) δ
1
= = 16.9 N/mm
2
Broadside direction (
δ
2
)
δ
2
= = 15.5 N/mm
2
12) Allowable tensile stress on a bolt subject to both tensile and shear stresses (f
ts
)
f
ts
=1.4
・
f
t
－
1.6
τ
= 216.9 N/mm
2
(3) Judgment
1) Tensile load
End-on direction, if R
b1
< T
a
OK R
b1
= 1,910 < T
a
= 11,760
Broadside direction, if R
b2
< T
a
OK R
b2
= 1,754 < T
a
= 11,760
2) Shear stress
if
τ
< f
s
, OK
τ
= 18.4 < f
s
= 99
3) Tensile stress
End-on direction: if
δ
1
< f
t
< f
t
= 176
OK
δ
１
= 16.9
δ
1
<f
ts
< f
ts
= 216.9
Broadside direction: if
δ
2
< f
t
< f
t
= 176
OK
δ
２
= 15.5
δ
2
<f
ts
< f
ts
= 216.9
F
H
・
h
G
－
(W
－
F
V
) L
G1
L
1
・ n
1
F
H
・ h
G
－ (W － F
V
) L
G2
L
2
・ n
2
F
H
N
・
A
R
b1
A
R
b2
A