Structural Steel Roof Framing Details

Cfs light frame construction g500 11 guidelines for inspecting cfs structural framing in low rise buildings g800 12 astm standards for cfs g801 13 astm a1003 no cause for rejection g802 13 aisi section a2 2 other steels g900 15 design methodology for hole reinforcement of cfs bending members j100 11 cfs floor joists.

Structural steel roof framing details.

R7 roof eave and soffit detail r8 rafter and joist bridging r9 collar tie at rafter detail r10 rafter brace connection detail r11 roof framing with wood tail extension r12 wood truss bearing on steel wall r13 collector block detail r14 non aligned roof wall framing r15 hip beam miscellaneous. The irc and ibc provide prescriptive framed shear wall designs that may be incorporated into the building design to resist lateral loads. M1 cabinet blocking detail m2 wiring and piping. Because the manufacturing process is fast there.

Both use framing members such as dimensional lumber engineered lumber or light gauge c shaped steel members surfaced with structural sheathing typically plywood or osb. The first approach to achieving a strong durable struc ture involving economical use of materials is to follow a basic modular plan for layout and attachment of framing members. Truss a structural frame of steel shapes connected into an assembly that can support loads far in excess of beams and girders due in large part to the depth or height of the assembly. Such methods use a 4 foot design module which governs a 16 inch spacing of joists studs rafters and panel sheathing products.

The strength and ductility of structural cold formed steel cfs framing along with the holding power of cfs connections make it the ideal material for construction in high wind speed and seismic zones such as the u. A truss is composed of chords main horizontal members vertical members and diagonal members. Purlins girts and roof deck the substructure to which the metal panels are fastened must be properly spaced and sufficiently thick to provide a roof or wall system able to meet required design loads. Eastern seaboard the gulf coast states california and hawaii.

Flat roofs may also need to be designed for live loads if people can walk on them. Cad details metals 05 12 00 structural steel framing structural steel framing cad drawings free architectural cad drawings and blocks for download in dwg or pdf formats for use with autocad and other 2d and 3d design software.