Shear walls diaphragms.
Wood structural panel shear wall.
Acts like a vertical cantilever beam let in wall bracing 45 limited to single or top story wall board requires 8 ft length wood structural panel requires 4 ft length 3 times stronger by length.
2 11 wood structural panels unblocked 2 1 diagonal sheathing single 2 1 structural fiberboard 3 13 gypsum board portlandcement plaster 2 12 l h ar h l.
The construction requirements and load capacities of wsp sheathed shear walls are found in the american wood council s special design provisions for wind and seismic sdpws.
The allowable shear values in tables 2306 3 1 and 2306 3 2 are permitted to be increased 40 percent for wind design.
2306 3 1 2306 3 2 or 2306 3 3 shall be permitted.
Maximum shear wall dimension ratios see sdpws table 4 3 4 for footnotes wood structural panels blocked for other than seismic.
The steel strong wall shearwalls conform to icc es acceptance criteria ac322 and are code listed under the 2015 irc ibc see icc es esr 1679.
Where panels are fastened to framing members with staples requirements and limitations of awc sdpws shall be met and the allowable shear values set forth in table 2306 3 1 2306 3 2 or 2306 3 3 shall be permitted.
Lateral loads may be transferred to the foundation via braced frames or rigid frames diagonal rods or x bracing including let in bracing in the ease of wood frame construction or other methods.
Wood frame shear walls shall be designed and constructed in accordance with awc sdpws.
Wood structural panel shear walls are permitted to resist horizontal forces using the allowable capacities where panels are fastened to framing members with staples requirements and limitations of af pa sdpws shall be met and the allowable shear values set forth in table 2306 3.
For wood structural panels distribution of shear in proportion to shear strength by wall length of each shear wall is permitted provided shear walls with aspect ratios greater than 2 1 have strength adjusted by the 2b s h factor per 2015 sdpws 4 3 3 4 1 exception 1.
Wood structural panel wsp sheathed shear walls are the most common shear wall system used in engineered wood frame buildings.
Wood structural panel sheathing maintains the structural durability of the home and allows walls to be insulated to higher r values resulting in high strength wall systems that are cost effective and contractor friendly.