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Not called for but I can't see the harm of adding brackets to add additional strength at rim joist/sill connection. I'm in earthquake country. I did see an article about how sometimes what seems logical in earthquake retrofitting you can cause more harm...:vs_no_no_no:
 

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I-joists in CA? Usually the shear sheathing panel breaks at the rim joist center, with 9' sheets installed vertically (no blocking at edges required then per seismic zone) vs, horizontal application. That is why the engineered floor layout usually calls for double joist rather than single rim- WITH the 2x 0R double ply added in the space for full nail penetration for sheathing wall lateral shear. Length of braced wall line is from (just past) threaded rod to threaded rod with the required hold-down; http://publicecodes.cyberregs.com/st/ca/st/b400v10/st_ca_st_b400v10_6_sec002.htm

eg.---http://www.strongtie.com/search?v=hda%2Fhd%3Arelevance%3AproductType%3AHoldownZ

OR phd, hdu, hhdq, hda, hd-shearwall hold-down. What do the plans say?

Gary
 
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