Prof. Ciro Faella - Ordine degli Ingegneri della provincia di Napoli
Prof. Ciro Faella - Ordine degli Ingegneri della provincia di Napoli
Prof. Ciro Faella - Ordine degli Ingegneri della provincia di Napoli
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Coefficienti ψ e λ<br />
sezione rettangolare<br />
Diagramma Parabola-rettangolo<br />
Stress block<br />
ψ = 0.8 λ = 0.4<br />
yc<br />
− 0.80 ⋅ h<br />
ψ =<br />
λ = ψ/2<br />
y − 0.75 ⋅ h<br />
c<br />
y c =-<br />
-10<br />
3.5<br />
y c<br />
1<br />
2<br />
5<br />
3<br />
A<br />
4<br />
6<br />
2<br />
y 2,3<br />
y c =<br />
C<br />
B<br />
y 3,4<br />
y 4,5<br />
ξ ψ λ ν c µ cG<br />
0.05 0.2401 0.3413 0.0120 0.0058<br />
0.06 0.2852 0.3433 0.0171 0.0082<br />
0.07 0.3291 0.3453 0.0230 0.0110<br />
0.08 0.3718 0.3475 0.0297 0.0140<br />
0.09 0.4130 0.3498 0.0372 0.0174<br />
0.10 0.4527 0.3523 0.0453 0.0210<br />
0.11 0.4907 0.3550 0.0540 0.0249<br />
0.12 0.5269 0.3578 0.0632 0.0289<br />
0.13 0.5611 0.3610 0.0729 0.0330<br />
0.14 0.5931 0.3644 0.0830 0.0373<br />
0.15 0.6228 0.3681 0.0934 0.0416<br />
0.16 0.6500 0.3721 0.1040 0.0458<br />
0.17 0.6745 0.3765 0.1147 0.0500<br />
0.18 0.6963 0.3813 0.1253 0.0541<br />
0.19 0.7158 0.3861 0.1360 0.0580<br />
0.20 0.7333 0.3909 0.1467 0.0619<br />
0.21 0.7492 0.3956 0.1573 0.0656<br />
0.22 0.7636 0.4001 0.1680 0.0692<br />
0.23 0.7768 0.4044 0.1787 0.0727<br />
0.24 0.7889 0.4086 0.1893 0.0761<br />
0.25 0.8000 0.4125 0.2000 0.0794<br />
0.30 0.8095 0.4160 0.2429 0.0911<br />
0.40 0.8095 0.4160 0.3238 0.1080<br />
0.50 0.8095 0.4160 0.4048 0.1182<br />
0.60 0.8095 0.4160 0.4857 0.1216<br />
0.70 0.8095 0.4160 0.5667 0.1183<br />
0.80 0.8095 0.4160 0.6476 0.1083<br />
0.90 0.8095 0.4160 0.7286 0.0915<br />
1.00 0.8095 0.4160 0.8095 0.0680<br />
1.10 0.8620 0.4428 0.8620 0.0493<br />
1.20 0.8955 0.4583 0.8955 0.0373<br />
1.30 0.9181 0.4681 0.9181 0.0293<br />
1.40 0.9341 0.4748 0.9341 0.0235<br />
1.50 0.9458 0.4795 0.9458 0.0194<br />
1.75 0.9644 0.4868 0.9644 0.0127<br />
2.00 0.9748 0.4908 0.9748 0.0090<br />
2.50 0.9855 0.4947 0.9855 0.0052<br />
3.00 0.9906 0.4966 0.9906 0.0034<br />
3.50 0.9934 0.4976 0.9934 0.0024<br />
4.00 0.9951 0.4982 0.9951 0.0017<br />
4.50 0.9962 0.4987 0.9962 0.0013<br />
5.00 0.9970 0.4989 0.9970 0.0011