Plastic hinges to DIN 18800
|
Axis |
V =<0.33 V_ |
V>0.33 V_ |
|
|
yy |
N =<0.10 Npl,d |
Mpl,y,d |
Mpl,y,d (1.136-0.42r) |
|
yy |
N >0.10 Npl,d |
Mpl,y,d 1.111 (1-n) |
Mpl,y,d (1.25-1.113 n - - 0.4125 r) |
|
Axis |
Axial load |
V =<0.25 V_ |
V>0.25 V_ |
|
zz |
N =<0.30 Npl,d |
Mpl,z,d |
Mpl,z,d (1-0.82r2) / 0.95 |
|
zz |
N >0.30 Npl,d |
Mpl,z,d (1-n2) / 0.91 |
Mpl,z,d (1-0.95 n2 - - 0.75 r2)/0.87 |
where:
|
r |
V / Vpl,d |
|
a |
N / Npl,d |
|
A |
axial force |
|
V |
shear force |
|
Mpl,y,d |
full plastic moment around yy axis |
|
Mpl,z,d |
full plastic moment around zz axis |
|
Vpl,d |
plastic shear force |
|
Npl,d |
plastic axial force |