Page 372 - MORPHOLOGIE DES STRUCTURES

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372 LES PORTIQUES

20 L = H = H =10 W 20 L = 10 ; H = H = 5 W
W h1 h2 h3 W h1 h2 h3

18 2 9 1+ I3 +L 3 I 2 + 34 I3 + 3 L2 I2 I3 + L3 I3 9+ L I2 18 2 9 1+ I3 +L 3 I 2 + 34 I 3 + 3 L2 I2 I3 + L3 I3 9+ L I2
k I2 H I1 I1 H2 I1 I1 H3 I1 H I1 16 k I2 H I1 I1 H2 I1 I1 H3 I1 H I1
16 W+ 14 W+
L2 4L 3 4+ I3 L 2 I 2 + 11 I3 L2 I2 I3
14 4L 3 4 + I3 +2 L 2 I 2 +11 I 3 + 3 H2 I2 I3 H I2 + 2 H I1 I1 + 3 H2 I1 I1
H I2 H I1 I1 I1 I1

2 39 + 3 I 3 + L 13 I 2 + 54 I 3 + 9 L2 I2 I3 + L3 I3 9 + L I2 2 39 + 3 I3 + L 13 I 2 + 54 I 3 + 9 L2 I2 I3 + L3 I3 9 + L I2
k I2 H I1 I1 H2 I1 I1 H3 I1 H I1 k I2 H I1 I1 H2 I1 I1 H3 I1 H I1
W+ W+
L2 L2
4L 3 4 + I3 +2 L 2 I2 +11 I 3 + 3 H2 I2 I3 4L 3 4 + I3 + 2 L 2 I 2 +11 I 3 + 3 H2 I2 I3
H I2 H I1 I1 I1 I1 H I2 H I1 I1 I1 I1

12 12
k =1
10 k =1
2 2
10 10 86 4
4
∞ 10 8 6
∞

8 8
7.5 7.5

Z =0.75 6 Z =0.75

k =1 k =1 Z =0.375
2 2 Z =0.25
64 ∞ 10 8 64
10 86
∞ ∞ 10 8 6 4 2 k = 1

∞ 10 8 6 4 2 k =1

4 Z =0.375 4
3.75 Z =0.25 3.75

2.5 2.5
2 2

LL

HH
00

0 1 2 3 4 5 6 7 8 9 10 01234567 8 9 10

12 Figure 2.10.3. 12 Figure 2.10.4.

Ω1σ L = H = H =10 Ω1σ L =10; H = H = 5
h1 h2 h3 h1 h2 h3
p1L p1L

10 10

88

6 k =1 Z =0.75 6
2
Z =0.375
4 Z =0.25 k =1
86
10 2

10 8 6 4

∞ Z =0.75

∞ Z =0.375
Z =0.25
4 4

k =1
2

86 4 10 8 6 4 2 k =1
10 ∞ 2 k =1

∞ k =1 2 10 8 6 4
2 2 ∞
1086 4
∞

LL
HH

00

0 1 2 3 4 5 6 7 8 9 10 0 1 2 3 4 5 6 7 8 9 10

Figure 2.10.5. Figure 2.10.6.