Variation of B.M. along a beam.
Understand the Problem
The question relates to the variation of bending moments (B.M.) along a beam. It likely involves understanding how bending moments change at different points and possibly requires drawing a diagram or calculating specific values.
Answer
Bending moment varies linearly with no load, parabolically with uniform load.
Bending moment varies linearly over sections with no load and parabolically under uniform loads.
Answer for screen readers
Bending moment varies linearly over sections with no load and parabolically under uniform loads.
More Information
The bending moment in beams is influenced by the type of loading and the span of the beam. Linear variation occurs in sections without external load, while parabolic variation is observed where uniform loads are applied.
Tips
A common mistake is not correctly identifying sections without load versus uniformly loaded sections, which affects how the moment varies.
Sources
- Shear Forces and Bending Moments in Beams - wp.optics.arizona.edu
- Bending moment - Wikipedia - en.wikipedia.org
- 6.2: Shear/Moment Diagrams - Engineering LibreTexts - eng.libretexts.org
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