Understanding N-, V-, and M-Diagrams for Structural Analysis

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The discussion centers on the challenges of drawing N-, V-, and M-diagrams for a specific structural analysis problem involving beams. Participants clarify that the structure is not a truss but consists of two simply supported beams, AD and DB. There is confusion about the stability of the structure, with some asserting it is unstable while others disagree. Tutorials are suggested as resources for understanding how to create the diagrams, particularly for this unique case. The conversation emphasizes the importance of correctly identifying the structural components to accurately analyze the load distribution.
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http://www.badongo.com/pic/640743

Certainly, this is not a truss, because of q. Can anyone explain how I can draw the N-, V- and M-diagram for the structure?
 
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Does this problem comes with a statement?, usually a roof or slab is supported by beams which receive the load from the slab and then send it to the truss as point loads. This structure as a whole is unstable.
 
Cyclovenom said:
Does this problem comes with a statement?, usually a roof or slab is supported by beams which receive the load from the slab and then send it to the truss as point loads. This structure as a whole is unstable.


No, there's no statement. But AD and DB is to be regarded as two simply supported beams.
 
Actually, it's not unstable, but you might want to look in our tutorial section, there are a couple of tutorials that explain how to draw the diagrams.
 
I know how to draw the diagrams on normal beams, but not in this particular case.
 
You'll have moments on the AD-DB part only, unless I'm missing something.
 
radou said:
You'll have moments on the AD-DB part only.

That's right. This is a trussed beam (or 2 trussed beams).
 
Last edited:

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