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2305.3.3 Shear Wall Aspect Ratios
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Size and shape of shear walls and shear wall segments within shear walls containing openings shall be limited as set forth in Table 2305.3.3.
|Wood structural panels or particleboard, nailed edges||For other than seismic: 31/2:1
For seismic: 2:1a
|Diagonal sheathing, single||2:1|
|Gypsum board, gypsum lath, cement plaster||11/2:1b|
- For design to resist seismic forces, shear wall height-width ratios greater than 2:1, but not exceeding 31/2:1, are permitted provided the allowable shear values in Table 2306.4.1 are multiplied by 2w/h.
- Ratio shown is for unblocked construction. Aspect ratio is permitted to be 2:1 where the wall is installed as blocked construction in accordance with Section 2306.4.5.1.2.
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