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Which type of beam loading is more likely to result in the occurrence of negative bending moments?
18. Which type of beam loading is more likely to result in the occurrence of negative bending moments?
- Uniformly distributed load
- Concentrated load at the midspan
- Cantilever beam with a downward deflection at the free end
- Triangular distributed load
Answer
The correct answer is: B) Concentrated load at the midspan
Explanation
A concentrated load at the midspan of a simply supported beam tends to induce negative bending moments, especially at the point of loading, where the convex side experiences tension and the concave side experiences compression.