Structural Analysis
The degree of static indeterminacy of a rigid-jointed space frame is (where m, r and j have their usual meanings)

m + r – 2j
6m + r – 6j
3m + r – 3j
m + r – 3j

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Structural Analysis
For under water concreting.

All of these
De-watering by pumping is not done or until 24 hours thereafter
The volume of coarse aggregates shall not be less than one and half times and not more than twice that of fine aggregate
At least 10 percent more cement is required as compared to dry conditions

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