Correct Answer - Option 3 : 450
Concept:
A slab or beam is considered safe in deflection if the following provision is full filled
- Span to effective depth ratio for a beam or one-way slab shall not be more than
- Cantilever = 7
- Simply supported = 20
- Continuous = 26
Calculation:
Given
Length = 9 m
For simply supported beam, span/d = 20
d = 9 × 103/20 = 450 mm
For two way slab:
Span /overall depth value shall not be more than
Type of beam |
Fe 250 |
Other steel |
Simply supported |
35 |
28 |
continuous |
40 |
32 |