What is the criteria to decide the clear distance between two channel sections in a build up column?
1
The moment of inertia about minor axis should be 5 times the moment of inertia about major axis.
2
The moment of inertia about major axis should be 5 times the moment of inertia about minor axis.
3
The moment of inertia about major and minor axis should be same.
4
The length and width of the built up section should be same.