Question

What is the suggested slenderness ratio for simply supported RCC decks?

(a) 4.5 to 7.5

(b) 7.5 to 12

(c) 12 to 15

(d) 15 to 18

This question was addressed to me in an international level competition.

The doubt is from Buttress Dam topic in chapter Arch and Buttress Dams of Irrigation Engineering

Answer 1

Correct choice is (c) 12 to 15

The best explanation: The height, thickness and spacing of buttresses can be controlled by Slenderness ratio. Slenderness ratio is the ratio of the height of the buttress to the thickness of the buttress. The value usually ranges from 12 to 15.