|
||
|
|
||
|
Axis |
Condition |
|
|
yy |
n / 0.18 + r <= 1 |
Mpl,y,d |
|
yy |
a <=0.18 |
Mpl,y,d |
|
yy |
a >0.18 |
Mpl,y,d 1.22 (1-n) |
|
yy |
r<=0.3 |
Mpl,y,d |
|
yy |
r>0.3 |
Mpl,y,d (1.1-0.3 n) |
|
zz |
n <=0.36 |
Mpl,z,d |
|
zz |
n >0.36 |
Mpl,z,d (1-((n-0.36) / 0.64)2) |
|
zz |
r<=0.3 |
Mpl,z,d |
|
zz |
r>0.3 |
Mpl,z,d (1.1-0.3 n) |
|
Axis |
Condition |
|
|
yy |
n / 0.10 + r <= 1 |
Mpl,y,d |
|
yy |
n <=0.10 |
Mpl,y,d |
|
yy |
n >0.10 |
Mpl,y,d 1.11 (1-n) |
|
yy |
r<=0.3 |
Mpl,y,d |
|
yy |
r>0.3 |
Mpl,y,d (1.1-0.3 n) |
|
zz |
n <=0.20 |
Mpl,z,d |
|
zz |
n >0.20 |
Mpl,z,d (1-((n-0.20) / 0.80)2) |
|
zz |
r<=0.3 |
Mpl,z,d |
|
zz |
r>0.3 |
Mpl,z,d (1.1-0.3 n) |
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 |