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A403.5 Weak Story Limitation
Related Code Sections
A403.5 Earthquake Hazard Reduction in Existing Woodframe Residential Buildings With Soft, Weak or Openfront Walls, Weak Story Limitation
Every weak story shall be strengthened to the lesser of: Ωo times the story shear prescribed by Sections A403.3 and A403.4. In two-story ...
A405.1.1 Earthquake Hazard Reduction in Existing Woodframe Residential Buildings With Soft, Weak or Openfront Walls, Additional Conditions
aspect ratio L/W is less than 0.67, where W is the diaphragm dimension parallel to the soft, weak or open-front wall line and L is the distance ...
A404.1.1 Earthquake Risk Reduction in Wood-Frame Residential Buildings With Soft, Weak or Open Front Walls, Additional Conditions
ratio L/W is less than 0.67, where W is the diaphragm dimension parallel to the soft, weak or open-front wall line and L is the distance ...
A403.9 Earthquake Risk Reduction in Wood-Frame Residential Buildings With Soft, Weak or Open Front Walls, Wood-Framed Shear Walls
not be used to provide lateral resistance in a soft or weak story or in a story with an open-front wall line, whether or not new elements are added ...
Section A303 Prescriptive Provisions for Seismic Strengthening of Cripple Walls and Sill Plate Anchorage of Light, Woodframe Residential Buildings, Structural Weaknesses
For the purpose of this chapter, structural weaknesses shall be as specified below.
Sill plates or floor framing that are supported directly ...