Basic span-to-effective-depth ratios

0.60% 0.80% 1.00% 1.20% 1.40% 1.1 Percentage of tension reinforcement (As,req'd/bd)

1 For two-way spanning slabs, the check should be carried out on the basis of the shorter span.

2 This graph assumes simply supported span condition (K = 1.0).

K =1.5 for interior span condition K =1.3 for end span condition K = 0.4 for cantilevers

3 Compression reinforcement, p', has been taken as 0.

4 Curves based on the following expressions:

(r 0


( r -

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