How is the depressed portion of a slab modeled such that elevation varies?

Answer: In v16 and below slab elevation may be set by right-clicking on the slab which will be depressed, then within the Assignments tab, adjust the vertical offset relative to the top of the slab. Positive adjustment raises the slab, whereas negative depresses.

In v20 and above you need to select the slab and use Assign>Shell >Insertion point. When in this form click F1 for more information about each option.

NOTE: Be sure to un-check Ignore Vertical Offsets, available through Run > Advanced Modeling Options, when manually adjusting slab elevation.

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