Problem

How to Add RAM Special Joists and Girders to Revit Joist Families

Solution

This will show you how to add joist designations that are applied to special joists and girders in RAM Structural System to the Revit Joist families. This includes SP, CS and joist girders. The joists and girders that are added are only to represent the joists imported from RAM and they are not designed joists or girders.
The first thing you need to do is to navigate to your Revit Joist family. The default location in Windows 10 would be:
C:\ProgramData\Autodesk\RVT 2017\Libraries\US Imperial\Structural Framing\Steel\
There you will find two K series joist families. Rod web and Angle web joists. Associated with each of the Revit family files is a text file with the same name. Make a copy of the text file and rename it so that you do not lose the original file. Right click the copy of the text file and select Properties. On the General tab uncheck the Read-Only checkbox and click Apply. Then close the properties dialog. Open the text file with Notepad. Scroll down until you find a joist the same size as the one you want to add.

Copy the line for the existing joist and paste it below the original. Edit the name to match the RAM designed joist name. (SP, CS, etc.)
You can use this same method you add joist girders with designations such as: 28VG5N9.1K or XXGSP. Remember these are only to represent joists and girders from the RAM model in Revit and are not designed joists or girders.