Load Bearing Steel Stud Wall Design

The wall stud web crippling calculations assume the following.

Load bearing steel stud wall design. As axial ver cal load is applied to a wall stud it will react by buckling and twis ng about its weak axis. Issues to be taken into account include. Standard load bearing walls except that stud lengths are 1 3 8 inch shorter to allow for the deflection track s equivalent height. Track thickness equal to or greater than the stud thickness both flanges of the stud attached to the track studs not adjacent to wall openings or discontinuities in the track minimum bearing length 1.

Reference is also made to asce 7 05. This typically takes the form of hot rolled structural steel within the steel stud walls an independent structural steel frame or similar programs. This 1 1 4 inch track height is able to expand and contract to allow for the ceiling deflection. C studs used in the construction of a load bearing assembly are.

The design examples are based on the 2001 north american specification for the design of cold formed steel structural members aisi 2001a and the supplement 2004 to the north american specification aisi 2004. Lsf floors and walls shall be designed to support and transfer loads safely and without undue movement. 1a 1b generally consists of the c studs and track framed openings including header and jambs. Load bearing members start at a thickness of 33mils 20ga and can be as thick as 97mils 12ga.

Sheathing is done as normal except that it must be held back from the top of the track. This results in inefficiencies in the cfmf wall design and fabrication and increases the complexity of construction trade sequencing. Detailed design examples covering wind bearing and axial load bearing stud walls and joists. Clarkdietrich cold formed c studs produced to astm c955 standards for axial load bearing and curtain wall framing are pre punched with knockouts at regular intervals specifically designed to allow for rapid installation of pipes electrical conduit and wall bridging.

The materials most often used to construct load bearing walls in large buildings are concrete block or brick. Wall bridging methods resist this tendency to buckle. Standard lower track is used in these walls. Components in a load bearing steel stud wall a load bearing stud wall figs.

Distri bution headers shear walls and miscellaneous hot rolled steel shapes may also be incorporated into the wall system. Steel framing wall stud design aisi s211 07. Lightweight cold formed galvanized steel load bearing studs are available in a selection of sizes flanges gauges and yield strengths to obtain optimal performance. Bridging is a cri cal element of a properly constructed load bearing wall system and is designed to resist horizontal and or lateral loads developing in the wall system.