ABSTRACT

The paper considers specific features of structural design for cold-formed steel sections used for roofs and walls of buildings located in seismic regions of Russia. The sections are made of coiled galvanized steel with the thickness range of 0.5 to 2.5 mm in section forming mills using continuous rolling. Section attachments and structural bracings are designed for seismic loads for buildings which are in service in seismic regions with 7–9 point seismic intensity on the Richter scale. Horizontal seismic load acting on a building is designed taking into account the mass of cladding structures and the degree of their joint behaviour in space work of the frame.