Why I-Section Beam is structurally better than same weight other sections?

Why I-Section Beam is structurally better than same weight other sections?

When deciding for the beam section to have, the first consideration to be done is what purpose it need to serve i.e. what kind of loads it will deal with. In general the following cross section choices are available for a beam in market – Rectangular/Square Section Box/Hollow Rectangular Section Circular Section Hollow Circular SectionRead more about Why I-Section Beam is structurally better than same weight other sections?[…]