Question

Which of the following forces is the least important in the design of arch dams?

(a) Reservoir water force

(b) Uplift pressure

(c) Temperature stresses

(d) Ice load

This question was addressed to me by my college professor while I was bunking the class.

Query is from Arch Dams in division Arch and Buttress Dams of Irrigation Engineering

Answer 1

The correct answer is (b) Uplift pressure

For explanation I would say: The uplift pressure in an arch dam is generally neglected because it is small due to the narrow base width of its body. Ice load, Temperature stresses and yield stresses are quite important in such dams and are thoroughly examined.