Profiled steel decking for use as a component of a composite slab comprising steel and concrete

摘要

A profiled steel decking for use as a component of a composite slab is disclosed. The composite slab is comprised of the steel decking bonded to a layer of concrete. The decking is comprised of a steel sheet, roll-formed to define at least two crests (1) and a trough (2) separated by inclined webs (3). The decking is further characterised in that the boundaries between the webs and the crests are radiussed (8) to define corners each having a smooth curvilinear profile, the radius of each such corner being between 15mm and 30mm.