Looking at the reports for a typical composite beam in RAM Structural System, I am seeing that RAM outputs I-effective (Ieff) and I-transformed (Itr) that are different from those listed in AISC Table 3-20 (Lower Bound Elastic Moment of Inertia for Plastic…

Hello, I am wondering how RAM Steel computes the I_{tr} for composite beams. For example, I have a composite beam with the following properties as computed by RAM: But by hand, I am computing I_{tr} = 941.86, slightly less than RAM. I am guessing…