Page 406 - MORPHOLOGIE DES STRUCTURES

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406 LES PORTIQUES

70 L = H = 10 0.70 80 L =10 ; H = 5 b
h1 h2 b h1 h2 0.80
α H 0.65 α
Hα α Hα α Hα α Hα α H
Z =0.25 b 0.60 Z =0.25 Lb 0.75
Z =0.375 Lb bL b 0.57 70 Z =0.375
60 0.70
0.55 Z =0.75 b Lb b
Z =0.75 60 0.65
50 0.50
0.46 0.60
40 0.57
0.45
30 0.55
0.40 50
20 0.36 40 0.50
30 0.46
10 0.35
0.45
0 0.30
01 0.26 0.40
0.36
20 0.25
W 0.35
0.20
18 0.30
16 k=1
14 0.26
0.25

k=1 0.20

0.15 20

2 0.15

4 0.10 10 2

6 4 0.10
8
10 6
8
0.05 10

L 0 0.05
01 L
H H
k =∞
2 3 4 5 6 7 8 9 10 ∞
2 3 4 5 6 7 8 9 10
Figure 2.19.5. 20
W Figure 2.19.6.
L = H =10
h1 h2 18 L =10; H = 5
h1 h2

Hα α Hα α

bL b 16 bLb
14

12 12

k=1 k=1

2 10 2

10 8 6 4 8 4
10 6
10

8 ∞ 8 ∞
7.5 7.5

6 Z =0.75 Z =0.75

4 86 4 k=1 k=1 Z =0.375
3.75 10 2 Z =0.25
62
2.5 ∞
2 86 4
∞ 10

4 ∞

∞ 10 8 6 4 2 3.75 10 8 6 4 2 k=1

k=1 Z =0.375

Z =0.25 2.5
2

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 2.19.7. Figure 2.19.8.