I have a building with 4.5" concrete over 2" metal decking with a 5'x4' hole cut in it in order to bring up elevator machines. They want this filled in a repaired once the elevator mod is completed. I'm looking for examples or ideas on patching a hole this size.
I figured I could use a slightly...
If the definition in a code of "factor of safety" is thus:
the ratio of the ultimate strength to the working stress of a member under maximum static loading...
Would I assume this would be using ultimate stress (Fu) in determining the maximum allowable stress? There are many places where a...
