[Rhodes22-list] Reconnecting the Tabernacle Screws Following Sacrificial Failure

[Chris on LBI]

Roger,

I think you are saying that I can conceivably calculate the shear force that
the screws need to withstand. All of my analysis and comments up to this
point have been about pullout force, not shear. I have been assuming that
the shear forces acting on the three screws are trivial relative to the
strength of the screw, the tabernacle base and the mounting block. Perhaps
this is a mistake and this force is not trivial. 

Now in thinking about it for the first time, if there is a non-structural
gap between the bottom of the tabernacle base and the epoxy plug (maybe
1/4") that is filled with gelcoat or some other sealant, this gap would
effectively transfer the lateral shear force into a rotational force on the
screw, a component of which would be pullout force and could be calculated. 

Thanks,
Chris




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Long Beach Island
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