The invention provides a method of constructing a multi-storey building from modular panel components. Each panel component comprises a framework of cold- formed C-profile structural steel members including vertical members (1 to 5) horizontal members (6 and 7) and optional diagonal cross-brace members (8 and 9). ...

Method of fabricating a metal beam from flat metal components (2, 3, 6). Two face plates of sheet metal (2, 3) are held mutually spaced apart by a reinforcing web (6) which is perpendicular to each of the face plates (2, 3) and which preferably extends in a non-linear path. Each face plate (2, 3) is formed with a ...

The invention provides a modular composite floor unit and a method for its manufacture. The floor unit is factory- made. An edge frame (10) is provided from cold-rolled sheet metal members (24 and 32) welded or brazed together to create edge shuttering. A cast concrete ceiling slab (12) is cast within the edge fra...