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// CODE SNIPPET

R602.11.2 Stepped Foundations in Seismic Design Categories D0, D1 and D2

Residential Code 2009 of Pennsylvania > 6 Wall Construction > R602 Wood Wall Framing > R602.11 Wall Anchorage > R602.11.2 Stepped Foundations in Seismic Design Categories D0, D1 and D2
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In all buildings located in Seismic Design Categories D0, D1 or D2, where the height of a required braced wall line that extends from foundation to floor above varies more than 4 feet (1219 mm), the braced wall line shall be constructed in accordance with the following:
  1. Where the lowest floor framing rests directly on a sill bolted to a foundation not less than 8 feet (2440 mm) in length along a line of bracing, the line shall be considered as braced. The double plate of the cripple stud wall beyond the segment of footing that extends to the lowest framed floor shall be spliced by extending the upper top plate a minimum of 4 feet (1219 mm) along the foundation. Anchor bolts shall be located a maximum of 1 foot and 3 feet (305 and 914 mm) from the step in the foundation. See Figure R602.11.2.
  2. Where cripple walls occur between the top of the foundation and the lowest floor framing, the bracing requirements of Sections R602.10.9 and R602.10.9.1 shall apply.
  3. Where only the bottom of the foundation is stepped and the lowest floor framing rests directly on a sill bolted to the foundations, the requirements of Sections R403.1.6 and R602.11.1 shall apply.
For SI: 1 inch = 25.4 mm, 1 foot = 304.8 mm.

Note: Where footing Section "A" is less than 8 feet long in a 25-foot-long wall, install bracing at cripple stud wall.
FIGURE R602.11.2
STEPPED FOUNDATION CONSTRUCTION

Related Code Sections


R602.11.2 Wall Construction, Stepped Foundations in Seismic Design Categories D0, D1 and D2
In all buildings located in Seismic Design Categories D 0 , D 1 or D 2 , where the height of a required braced wall line that extends from ...
Residential Code 2015 of Pennsylvania > 6 Wall Construction > R602 Wood Wall Framing > R602.11 Wall Anchorage > R602.11.2 Stepped Foundations in Seismic Design Categories D0, D1 and D2
R602.11.2 Wall Construction, Stepped Foundations in Seismic Design Categories D0, D1 and D2
In all buildings located in Seismic Design Categories D 0 , D 1 or D 2 , where the height of a required braced wall line that extends from ...
Residential Code 2009 of Pennsylvania > 6 Wall Construction > R602 Wood Wall Framing > R602.11 Wall Anchorage > R602.11.2 Stepped Foundations in Seismic Design Categories D0, D1 and D2
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