2113.4 - Seismic anchorage
Masonry and concrete chimneys and foundations in Seismic Design Category C or D shall be anchored at each floor, ceiling or roof line more than 6 feet (1829 mm) above grade, except where constructed completely within the exterior walls. Anchorage shall conform to the following requirements.
2113.4.1
Anchorage. Two
3/16-inch by 1-inch (4.8 mm
by 25 mm) straps shall be embedded a minimum of 12 inches (305 mm) into the
chimney. Straps shall be hooked around the outer bars and extend 6 inches (152
mm) beyond the bend. Each strap shall be fastened to a minimum of four floor
joists with two 1/2-inch
(12.7 mm) bolts.
Notes
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