16 Example 7.4Determine (approximately) the forces acting in the members of the Warren portal.
17 Frames under Horizontal Loads Portal methodInflection pointsShear forces
18 Frames under Horizontal Loads Cantilever methodInflection pointsAxial forces
19 7. Approximate Analysis Structural analogy What are inflection points? How to analyze frames under vertical loads?How can inflection points be used to simplify the analysis?What are portal method and cantilever method?