GATE 2018 CE (CE2) – Question 32
An RC slab of effective depth 80 mm is simply supported at two opposite ends on 230 mm thick masonry walls, 3.3 m centre to centre. According to IS 456:2000 referred to in the paper, its effective span, to two decimals, is ______ m.
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Correct answer: 3.15 to 3.15
Explanation
Clear span is $3.30-0.23=3.07$ m. Effective span is the smaller of clear span plus effective depth and centre spacing: $\min(3.07+0.08,3.30)=3.15$ m.