I have a building that has a high and low roof. The low roof is the same T.O.S. as the 2nd story. The 2nd floor construction is conventional 5" one-way composite slab on deck and the 1st floor roof (low roof) is a flexible EPDM roof. After I model slab edges and assign decks to each respective area, I encounter one of the following issues:
1) The Gravity Load Data Check returns errors that the slab edges intersect and gives a User Action to create separate (non-intersecting) slab edges.
2) When assigning a slab edge offset from one another, I receive the same error in addition to another error: Break or extraneous slab edge detected with a User Action to delete extraneous slab edges or make slab edge continuous. In addition to this, after I assign slab edges to split the two decks, the options to assign each deck under Graphics Mode of Deck Assign Mode ("Whole Floor", "Whole Diaphragm", and "Add" buttons) are grayed out as not being available.
I've tried multiple things from deleting the slab edges all together and starting from scratch, changing the slab edges, etc. Nothing seems to work.
Is it possible to model 2 adjacent two-way concrete slabs on the same floor? For example, I have a floor plan where half of the diaphragm is 9" thick and the other half is 12" thick. I can model the whole floor with a single deck without any issues, but when I try to model with 2 two-way deck polygons, is get meshing errors in RAM Frame. The mesh issue occurs even when I use the exact same deck types for each polygon.
You should be able to model two decks of different thickness within a single diaphragm The edge where the decks meet becomes an important line that the program has to mesh to. If that line is very close to, but not at ,other significant points like walls or columns it can cause problems. More on meshing issues here: communities.bentley.com/.../ram-frame-meshing-and-segmentation.aspx
I did exactly as what you suggested - "Leaving 1" gap", but RAM still gave me error message. These two decks sitting on the same beam. Please help. Thanks!
Best
2 beams are required, and the separation between the beams needs to be 1" more than the sum of the two overhangs. Note, two slab edges are required to have two diaphragms, but they not required simply to change deck types.