One systematic way to determine internal actions in a complex 2D frame is to div

Question

One systematic way to determine internal actions in a complex 2D frame is to divide or "break" it into a number of simpler free bodies (usually but not necessarily bars) and consider equilibrium of these free bodies one at a time. Internal forces and moments are calculated progressively for each free body and transferred onto the next one. Which of the following sequences of free bodies can be used in the written order for the analysis of the 2D frame from previous question?

Correct Answers:

i. JK, FJ, ABC, CDE, EFG

ii. ABC, FJK, EFG, CDE

Explanation / Answer

we divide the beam into simpler bodies so we can either have them in individual straight bars like JK, FJ, ABC, CDE, EFG or we may not divide each member in a bar and can have it in such a structure which can be solved easily without complication like ABC, FJK, EFG, CDE

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