Bending moments and points of contraflexure

AI Thread Summary
The discussion focuses on understanding bending moments and points of contraflexure in beams. The user is struggling with parts d) and e) of a problem related to these concepts and seeks assistance. Key points include the relationship between shear force variation and bending moment variation, which is crucial for solving the problem. Participants emphasize the importance of knowing how to derive bending moments from shear forces. Overall, the conversation highlights the need for clarity on these fundamental concepts in structural analysis.
ai93
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Hi
I am attempting a question on moments and beams.
I have attached the question and my solutions so far. But having trouble completing d) and e)
Can someone show how to work out bending moments and the point of contraflexure?
http://[ATTACH=full]199767[/ATTACH] [ATTACH=full]199768[/ATTACH]
[ATTACH=full]199769[/ATTACH]

any help is appreciated thanks
 

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What have you done on part d so far. To you know how to determine the bending moment variation, given the shear force variation? How are the two related?

Chet
 
Having trouble doing bending moments and points of contraflexture. That's why I need help!
 

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