Ref 8" CMU, HIT HY-270, 5/8" Dia. Bolts
If I have 8" spacing between two bolts in the center of the wall, edge dist = 3.8125", does the .7 spacing reduction factor apply to the shear capacity perpendicular to edge of masonry wall? I believe it should not, as the projected areas for breakout will not overlap.
Hi David,
The reduction factors for HIT-HY 270 installed into the top of a grout-filled wall can be found found in Table 6 of Section 3.2.4 of Hilti's Anchor Fastening Product Technical Guide. If the anchor spacing is less than the critical anchor spacing, then a reduction factor will need to be applied to the design. For further information on how this reduction factor is applied, please reach out to hnatechnicalservices@hilti.com.
Regards,
Ashley