ABSTRACT

ABSTRACT: The paper considers some examples of economical steel structures developed in Russia using zinc-coated cold-formed sections for frames of buildings with height not exceeding 10m. Structural material is coiled steel with the thickness range not exceeding 1.2-2.0mm and double-side zinc coating of at least 18µ. Cold-formed channel, C, Z and -shaped sections of increased stiffness with height varying from 100 to 280mm are fabricated from this steel by a continuous rolling. Such sections can be used to assemble frames, columns, girths, trusses, beams and purlins. Connections of cold-formed sections and structural members are made using normal bolts, self-tapping screws and combined rivets. Of particular interest are load-bearing structures made of perforated wall sections allowing to greatly increase their thermal resistance within cladding structures.