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2211.3.2 Type II Shear Wall Resistance
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The Type II shear wall resistance shall be equal to the adjusted shear resistance multiplied by the sum of the widths (ΣLi) of the Type II shear wall segments and shall be calculated in accordance with the following:
- Percent full-height sheathing. The percent of full-height sheathing shall be calculated as the sum of widths (ΣLi) of Type II shear wall segments divided by the total width of the Type II shear wall including openings.
- Maximum opening height ratio. The maximum opening height ratio shall be calculated by dividing the maximum opening clear height by the shear wall height, h.
- Unadjusted shear resistance. The unadjusted shear resistance shall be the design shear values calculated in accordance with Section 2211.2.1 based upon the values in Tables 2211.2(1) and 2211.2(3). The aspect ratio of all Type II shear wall segments used in calculations shall not exceed 2:1.
Exception: Where permitted by Tables 2211.2(1) and 2211.2(3), the aspect ratio (h/w) of Type II wall segments greater than 2:1, but in no case greater than 4:1, is permitted to be included in the calculation of the unadjusted shear resistance for the wall, provided the values are multiplied by 2w/h. - Adjusted shear resistance. The adjusted shear resistance shall be calculated by multiplying the unadjusted shear resistance by the shear resistance adjustment factors of Table 2211.3. For intermediate percentages of full-height sheathing, the values are permitted to be determined by interpolation.
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