Thanks Bentley.
Dear nprabhakar,
It's seems to be late, but it's late better than never. You should be using ANNEX E-1.2, although it's for the section "Symmetrical About Minor Axis".
Thanx
Dear members,
There is a mistake in the hand calculation for channel design, in page number 4
of 5. The Mndz(1) and Mndz should be calculated considering the section as
laterally supported (whatever be the actual support condition), simply because
you are calculating the "SECTION STRENGTH" of the member. The calculation of
Mndy is OK as it's calculated with Mdy which is already the laterally supported
capacity.
Thank's 'n Regards.