For a two-story wood frame residence in California seismic design category D, what is the minimum holdown capacity required at the end of a 20-foot long shear wall with a unit shear of 350 plf?
Correct Answer
D) 7,000 pounds
Per CBC Table 2308.12.4, the holdown force is calculated as the unit shear multiplied by wall length multiplied by the overturning moment factor. For a 350 plf unit shear over 20 feet with appropriate factors for two-story construction, the minimum holdown capacity is 7,000 pounds.
Why This Is the Correct Answer
Per CBC Table 2308.12.4, the holdown force is calculated as the unit shear multiplied by wall length multiplied by the overturning moment factor. For a 350 plf unit shear over 20 feet with appropriate factors for two-story construction, the minimum holdown capacity is 7,000 pounds.
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