Civil Engineering Reference
In-Depth Information
Ellipse
π
A Dd
=⋅ ⋅ =⋅ ⋅
π
a b
4
π
( )
⎡
⎤
U
≈⋅ ⋅ +−⋅ ⋅
⎣
3 a b
2
a b
⎦
2
Kreisausschnitt
2
br
° ⋅
= ⋅ ⋅ =⋅ =
°
α
α
2
A
π
r
r
360
2
2
α
°
b
=
π
⋅
r
180
°
Kreisabschnitt
2
(
)
r
⎛
α
°
⎞
h
2
2
A
=⋅ ⋅
π
− ≈ ⋅ ⋅ +⋅
sin
α
3 h
4 s
⎜
⎟
⎝
⎠
2
180
°
6 s
16
⋅
α
2
2
s
=⋅⋅
2 r
sin
≈ − ⋅
b h
2
3
2
h
s
r
=+
⋅
⎛
28h
α
⎞
s
α
α
2
hr 1
=⋅ −
cos
2r
224 4
= ⋅
tan
=⋅⋅
sin
⎜
⎟
⎝
⎠
Kreisring
( )
π
2
2
( )
A
=⋅
D
− =⋅ ⋅ +
d
π
b d b
4
Dd
−
b
=
2
Volumenberechnung
1
2
Würfel
3
Va
O6a
d
=
=⋅
=⋅
2
3 a
