10% of wall area
20% of wall area
30% of wall area
50% of wall area
4 zones
5 zones
6 zones
7 zones
3
5
6
7
1.5 d
2.0 d
2.5 d
3.0 d
95.0 MPa on net area
105.5 MPa on net area
105.5 MPa on gross area
150.0 MPa on gross area