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During the framing table process a model may produce a warning indicating:
Warning---------------------------Failed to Create Slab Edge Load Polygons for diaphragm # on Layout Type #LayoutName.Slab edge loads will not be applied to any beams around the perimeter of that diaphragm.Disregard this warning if the slab edge is Two-way deck.
In Ram Structural System, during the framing tables process the program calculates the loads from one way decks that are to be applied to all the beams. In order for this to work there needs to be a continuous outer slab edge loop (polygon) with deck filling the slab area. Furthermore, any framed openings inside of that loop need to be closed loops using the slab opening tools. Occasionally users will accidentally model open edges using the slab edge tool, rather than the slab opening tool and this leads to various errors in the program.
In addition to the warning noted above, it might also cause the Steel beam design process to crash for specific beams.
Always model complete slab edges using the Layout - Slab - Slab Edges tools and openings using the Slab Openings tools.
By default slab openings are true green, while opening edges are an olive green color for clarity, though the pen colors can be changed by the user.
Starting with version 15.11 the Ram Modeler - Integrity - Data Check (Gravity) was enhanced to check for some of these conditions and give warnings when the slab edge is slightly divergent from the associated perimeter framing or set 0" away. See V15.11 Release Notes.
RAMSS Common Framing Table Errors
Missing or incorrect loads near perimeter beams