Do piering contractors generally use a structural or geotechnical engineer when they've been contracted to pier a residence? Or is this something the homeowner should insist on?
i need to find information about the old steel beams in this building. i have 15" deep beams w/ 5.5" flanges that are 1/2" think. does anyone know what i should use for Fy? and what edition of the AISC code is applicable to the time this building was built? (the current owner...