Civil Engineering - Building Construction - Discussion

Discussion Forum : Building Construction - Section 2 (Q.No. 5)
Raft foundation are generally preferred to when the area required for individual footing, is more than
25% to total area
30% of total area
40% to total area
50% of total area.
Answer: Option
No answer description is available. Let's discuss.
4 comments Page 1 of 1.

Suresh said:   2 years ago
So the raft foundation is provided when the required footing is half than the total area so half is 50 percent.

Therefore the given answer is right.

Sibbu said:   6 years ago
I agree with the given answer.

Selva said:   6 years ago
Rafts are most often used these days when the strata is unstable or (because of this) a normal strip foundation would cover more than 50% of the ground area beneath the building.

So answer D is correct.

Sumit said:   6 years ago
I think the right answer is (c).

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