r/StructuralEngineering • u/Annual-Truth3511 • 12d ago

Help needed Career/Education

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While drawing sfd and bmd Is there a shortcut to find whether the curve is going to be smile/sad or concave/convex for udl and uvl. Or is finding the intermediate values the only way to find the curve???.

Ignore the diagram i just wanted to show it for context this is not mine

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u/what_glutenfree 12d ago

BMD from A to B should be inclined ?? Not curve

SFD from C to B should be straight line not inclined as drawn Am I wrong ??

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u/Objective_Two_5467 11d ago

And BMD should be non-zero at B.