Thanks John for your reply
In the mentioned, high pressure section of ASME B31.3, the compression and bearing are both mentioned between other "pure" stresses. Then the bearing stress must be something else.
I am looking at this to evaluate local stresses at support "point" for 36" and 44" (wall 9.5mm thick) cooling water lines and to size the bearing pads if they are necessary. I am using basic stress formulas S=F/A for compression stress and comparing it with ASME B31.3 allowable. Is this too simplified? What about local bending and shear? If I calculate combined stress, which allowable must I compare it with?
If anyone knows a manual method to resolve this (except for FEA) please response.
Thanks