| 摘要 |
A support apparatus is for use with building supports and floor or roof sheathing. The apparatus includes purlins and Pratt-style trusses, Each truss is supported on the building supports. Each truss includes top and bottom chords, and web members extending therebetween. Each purlin extends transversely of the trusses and has notches spaced along an underside thereof. Each notch is saddled over a top chord of one of the trusses, so as to restrict sliding movement of the purlins. The purlins support the floor or roof sheathing thereon. The top chord, the bottom chord, the web members, and the purlin members are constructed from roll-formed light gauge steel material.
|
