I have an access platform I am adding along a boiler. The design is cantilevered and supported by 6x6x0.25 HSS tube. I did a quick calculation based on max loading to see what tension would be on the anchor bolts (see calc below and model of baseplate). I was looking at using quick bolts and reviewed the hilti specs against the calculated load. My calc shows a tensile load of 5655 pounds along the centerline of the anchor bolts. This load would be shared across two or three anchor bolts. Hilti has a pullout load of 3345 lb in cracked concrete for 5/8" bolts. When I use the spacing factor in Hilti's spec, I get that it would take 7125 pounds (0.71*3345*3) to pull out all three bolts. That of course assumes all bolts share the load equally. Any tips or advice on this?
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