Question

What is the maximum permissible tensile stress for high concrete gravity dam under worst conditions?

(a) 500 KN/m^2

(b) 500 kg/cm^2

(c) 5 kg/m^2

(d) 50 KN/m^2

This question was posed to me in quiz.

My question is based upon Gravity Dams in section Gravity Dam Design and Construction of Irrigation Engineering

Answer 1

The correct option is (a) 500 KN/m^2

To explain: The masonry and concrete gravity dams are usually designed in such a way that no tension is developed anywhere in the structure. The maximum permissible tensile stress for high gravity dams is taken as 500 KN/m^2 under worst conditions. If subjected to such tensile stresses crack develops near the heel.