The alignment process not only project the elements to grids and levels, but also, based on the rule-based automation logic, trims or extends the analytical elements to grid intersections if they are within the defined tolerance.
See Align Analytical Model for Entire Buildings with Grids and Levels
However, sometimes the analytical elements are not within these tolerances. In these cases, the analytical elements are connected using object-specific rules if the associated physical elements are connected.
The walls intersection rule looks in the selection for connected physical walls that have analytical associated elements which are not connected.
These elements will be connected.
This rule looks in the selection for physical beams that are connected to physical walls and/or columns by their end, that have analytical associated elements which are not connected.
These elements will be connected.
This rule looks in the selection for physical beams that are supported by other physical beams by their end, that have analytical associated elements which are not connected.
These elements will be connected.