Horseshoe shims and bolt bending 1

[jimrcasper]

If a horseshoe shim is used between a base plate and slab (assume no grout) is the threaded rod subjected to shear, tension and moment; tension and shear, or something in between (if so is it quantifable). Any help or references would be a great help. Thanks

 

[bridgebuster]

The forces have to be taken by the bolts. Follow the link below to the NYSDOT web site; scroll down to SR-131 for a design procedure.

https://www.nysdot.gov/portal/page/...nsportation-research-development/publications

 

[csd72]

The bolt specifications give an allowable out of straightness for bearing surfaces - check out the A325/A490 spec for this.

 

[Tmoose]

Are these what you mean by horseshoe shims?

http://www.newmantools.com/precisionbrand/1143802.gif

Is this baseplate part of a light pole or sign?

OR, is it under rotating machinery ?

The light pole folks can get away with things, like using under nuts for leveling, are looking for trouble on a machine base, despite what the grout manufacturers say.