- #1
fonseh
- 529
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Homework Statement
In this question , we can see that in teh second picture , the 12.86kNm is in clockwise direction at the right of span BC .
Homework Equations
The Attempt at a Solution
In meachnic of materials , i learned that when the beam curve upwards ( U shape) , then it has positive bending moment ... So , I agree that the 1.54kNm clockwise rotation on the left of span AB has POSITIVE moment ... But , i don't agee that the 12.86kNm is in clockwise direction at the right of span BC has POSTIVE value ( it's -12.86kNm on the left , so POSITIVE 12.86kNm is added to bring the moment to 0 at C) ... I think the -12.86kNm on the right of span BC will lead to negative moment