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Bending moment sign convention
To StructuralEIT I don't think anyone mentioned "negative" bending for a simply supported beam. Drawing moment on the bottom side still means 'positive' moment. I agree with many people that it is logical to have BMD a similar shape to the deflection. But choosing which convention depends on...- ndtmj
- Post #19
- Forum: Civil/Environmental engineering general discussion
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Bending moment sign convention
Thank all for your reply. I like to clarify my question. The two convention systems are consistent in terms of "positive" or 'Negative", i.e. upward bending is positive and downward is negative. The only difference is on which side you plot the the positive moment. SAP2000 plots the positive...- ndtmj
- Post #7
- Forum: Civil/Environmental engineering general discussion
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Bending moment sign convention
HI, I am teaching structural analysis in a college. I have a question about the sign convention commonly used in industry. Most text book draw the positive bending moment above the beam (compression side), but some software (SAP2000) plot +M on the tension side. I personally prefer the tension...- ndtmj
- Thread
- Replies: 22
- Forum: Civil/Environmental engineering general discussion
