They were all shelved and shimmed, but they weren't all stuck. And they should all be stuck.
What? Really, what?
Obviously this steel beam, and all the steel beams in in this new construction in fact, is resting comfortably.
The steel beam support code is simple. It says that a steel beam should rest on a "corbel," a fancy word for a shelf or jutting support made of solid material, that is two thirds as deep as the beam is wide.
This beam is 6" wide. Therefore its corbel, or shelf support, should be at least 4" deep. And all over the house the beams were well supported.
Because foundation walls are poured with fairly rough framing, areas may not be exactly of the proper height for the top of the beams to be level with the surrounding locations.
To gain a more exact, and proper, height, so that everything in the house begins on a level plane, the beams are shimmed.
The most common shims I see are metal. Small, metal plates, in fact.
They are literally shoved in there with each other and the beam is laid on top.
But things can move! An earthquake can shift things dramatically. And a corbel is defined as SOLID material. So the shims must be tack welded to each other, and to the beam.
Jay Markanich Real Estate Inspections, LLC
Based in Bristow, serving all of Northern Virginia.
Office (703) 330-6388 Cell (703) 585-7560