常用截面的几何与力学特征计算表

A
b
h
401004000b
h
y 1
66.67W 120833.3350100
2500
y 2
33.33
W 2
41666.67
b
b1
h
y 1108.33W 1482051.2810060200
y 2
91.67
W 2
569696.97
y
50W
3
66666.67号
A=bh
1
2
28.9
23.6
57.20
1388888.89
52222222.22
I
3333333.33i
h y 2
1=
312
1bh I =
2
6
1bh W =h
i 289.0=bh A 2
1=
h
y 321=h
y 3
12=3
36
1bh I =2
1241bh W =2212
1bh W =
h
i 236.0=h
b b A )(2
1
1+=)(3)2(11
1b b h b b y ++=)
(3)2(112b b h b b y ++=
)
(36)4(13
21
12
b b h b bb b I +++=
)
2(12)4(12
21121b b h b bb b W +++=
)
2(12)4(12
21122b b h b bb b W +++=
21121
4236.0b bb b b b h i +++=
A
y
W
I
i
d 50
1963.50d d148
43
390.93B
b
H
h
100802001805600
6
70.52
100277866.6727786666.67244184.45100426.7516.03
5
2512.5
12271.85306796.154
4
2
d
A π=
d
y 2
1=64
4
d
I π=
32
3
d W π=
4
d i =
)
(4
212d d A -=
π
d
y 2
1=)(64
4
14d d I -=
π)
(32414d d d
W -=
π
2
12
4
1d d i +=bh
BH A -=H y 2
1=
12
)
(3
3bh BH I -=
H
bh BH W 63
3-=
bh
BH
bh BH i --⨯
=3
3
289.0
A
y
W
I
i
a
a1
100901900H
B
h
t
b y 139.74W 1210122.521208011010
10
1900
y 2
80.26
W 2
104027.87
B b H h t
55 4.5100867.2
1177.2
7
8
1943774.02
70.7140580.22865833.3338.88
8349605.26
66.29
9
50
38875.48
40.68
21
2
a
a A -=2
a y =
12
414a a I -=
a
a a W 4
14118
.0-=2
12289.0a a i +=bh
Bt A +=)
(2)(2
21bh Bt t b B bH y +-+=
12y H y -=3132[3
1By by I +=
]
))((31t y b B ---11y I W =
2
2y I W =
A
I i =
h
b B BH A )(--=2
H y =
])([12
1
33h b B BH I --=H h b B BH W 6)(33--=h
b B BH h b B BH i )()(289.03
3----⨯
=
A
y
W
I
i
H h t 1t 2B 1b B 2y 171.85W 1
188365.47150120131710015
70
4290
y 2
78.15
W 2
173178.92
B b t h
1502025350
10250
11
175
13533993.02
10
409300.60
83.69
56.17
71627604.17
bh
t B t B A ++=22112
2112
2
222)([
21t B bh t B t b B bH y ++-+=]
)2)((2
2111
11t B bh t B t t H b B ++--+
2
1y H y -=3
11322[3
1y B y B I +=3
222))((t y b B ---3
111))((t y b B ---1
1y I W =
2
2y I W =
A
I i =
t
b B bh A )(-+=h
y 2
1=12
)(33t b B bh I -+=
h
t b B bh W 6)(3
3-+=
t
b B bh t b B bh i )()(289.033-+-+⨯
=
A
y
W
I
i
H h B b t 15012070
15
15
3900
H h B b t 15012070
15
15
3900
12
75
78450
78450
54.99
13
75
11767500
11767500
54.99
h
b B BH A )(--=H
y 2
1=12
)(3
3h b B BH I --=
H
h b B BH W 12)(3
3--=
h
b B BH h b B BH i )()(289.033----⨯
=h
b B BH A )(--=H y 2
1=
12
)(33h b B BH I --=
H
h b B BH W 12)(3
3--=
h
b B BH h b B BH i )()(289.033----⨯
=
A
y
W
I
i
H B b t y 148.57W 110403.6775
45
8
8
896
y 2
26.43
505274.65
W 2
19115.27
B H δy 130I x 832000W x 20800i x 31.5160
80
3
840
y 2
40
I y
540000
W y
18000
i y
25.38
14
15
23.75
t
b B bH A )(-+=2
1y H y -=t
b B bH t b B bH y )()(2
1222-+-+⨯
=[
]
31323
2)()(3
1by t y b B By I +-⨯--=11y I W =
2
2y I W =
A
I i =
15
)
(2H H B A ≤
+=δδ2
221H y B y =
=
)
13(6)
13(633+=+=B
H B I H B H I y x δδ)
13(3)
13(322+=+=B
H B W H B H W y x δδH
B B H B
i H B H
B H i y x ++=++=3289.03289.0。