Masonry Chimney Seismic Anchorage IBC 2113.4.1

The subject paragraph calls for 2 - 3/16-inch by 1-inch straps embedded 12-inch into chimney and fastened to at least four floor joist W/ 2 - 1/2" bolts.

Simpson does not carry these straps nor can I find them on the internet as specified. A 5mm strap is really thick and it is hard to believe that this requirement is valid.

Where would you buy a strap like that and is this requirement an error? Nothing else in the code requires a strap that thick.
Michael Bailey Designer & Associate Professor POB 1028, Ferndale, CA 95536 bcs-office@baileyhouses.com Ph: 707-215-5366
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