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Base Plate anchors after the fact

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There has been some similar threads in the past.  “Hilti” has a paragraph showing reduction calculations in shear capacity of their anchors, they say to be used, due to bending moment in the anchors.  Their diagram looks similar to a situation with a steel base plate.  The also say something to the effect that their reduction should be used if anchors are subject to ultimate shears causing crushing of the concrete base.  Does anyone understand this?  If the anchors are designed to service load levels are the anchors subject to “ultimate shears” in their words?  Would strengthening an in place base plate require their reduction if the base plate is grouted?



Joseph R. Grill, PE