This is video number 22 in my series on "Structural Engineering Made Simple." This is Part 1 of a two-part series on design of composite beams and focuses on cases when W sections are used and the method based on the plastic stress distribution can be applied. Note: when explaining the Table 3-19 of AISC for a design example, the correct value of parameter Y1 is 4.0 inches. I erroneously mentioned 6.0 inches. Also, there were errors in the calculation of transformed section of Slide 46. The correct numbers are: n=8 b/n = 11.25" Ac = 45 in^2 y = 18.8" Ix = 1,444 in^4 I will have all the correct values in my Lesson 23. Thank you for watching.