Section 508C — ALLOWABLE DESIGN VALUES
508C.6 Existing Tension Anchors.
San Francisco Building Inspection Commission Codes · 2022 edition · updated 2026-08-28 · San Francisco
The allowable resistance values of the existing anchors shall be 40 percent of the average of the tension tests of existing anchors having the same wall thickness and joist orientation. The one-third increase in allowable value of this code is not allowed for existing tension anchors.
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