Abstract: A trussed frame for use in structures and particularly those structures having long-span requirements in which there is at least one compression member comprised of hollow steel filled with high strength concrete forming a composite having a higher load carrying capacity than the total load carrying capacity of the hollow steel compression member and concrete each acting alone and a pre-compressed rolled structure steel tension member having high strength steel post-tension tendons anchored to the trussed frame at the respective ends of the tendon.