Question

For a simply supported beam which is loaded transversely, the maximum compressive stress develops at
1. The top layer
2. The bottom layer
3. Neutral axis
4. Every cross section

Answer 1

Correct Answer - Option 1 : The top layer

Concept:

In the simply supported beam, the top fibres above the neutral axis are subjected to compressive stresses. And the bottom fibres below the neutral axis are subjected to tensile stresses. So the main reinforcement is provided below the neutral axis.

In the cantilever beam, the top fibres above the neutral axis are subjected to tensile stresses. So the main reinforcement is provided above the neutral axis.