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The stresses due to rib-shortening become quite important in the case of _____________

The stresses due to rib-shortening become quite important in the case of _____________ Correct Answer thick arch dams of small angle

In the case of an arch dam, the ends being fixed the distance between them does not change and this restriction of the change in the span causes additional stresses known as rib-shortening stresses. These stresses are small in a long thin arch but in the case of a thick arch of small-angle, they are appreciable.

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