Combined component

The utility model relates to a combined component, its characterized in that: the cold -formed thin -walled that it includes two pairs of interval arrangements is the channel -section steel of C type in -band turn -up, and one of them is right the both wings welding of channel -section steel is right at another two apotomes of channel -section steel, and then form an internal surface and have a shaped steel that leads to the elongated slot mouth for leading to vast sky chamber, each side of surface, the cross sectional shape of cavity is square or rectangle, space welding has a plurality of brackets and has the connecting plate of mounting hole on shaped steel, and the holding surface of bracket is with the length direction of shaped steel as the stand use when perpendicular, and the holding surface of bracket is with the length direction of shaped steel as the girder use when parallel, and when not setting up bracket and corresponding connecting plate on shaped steel, shaped steel uses as the secondary beam. The utility model discloses a hot -galvanize thin wall cold -rolled steel sheet is made for the substrate. The utility model discloses on can being applied to building structure widely, both can regard as the stand to use, and can regard as the roof beam to use again.