A trapezoidal concrete dam is 27ft. high. The upstream face is vertical and the water is flush with the top, which is 3ft. wide. The coefficient of friction between the base of the dam and the foundation is 0.60. If it is required to have a factor of safety of 3 for overturning and knowing that concrete and water weight 150 pcf and 62,4 pcf, respectively, find: a. The required width of the base; b. The pressures at the toe and at the heel of the dam.

Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
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A trapezoidal concrete dam is 27ft. high. The upstream face is vertical and the
water is flush with the top, which is 3ft. wide. The coefficient of friction
between the base of the dam and the foundation is 0.60. If it is required to have
a factor of safety of 3 for overturning and knowing that concrete and water
weight 150 pcf and 62,4 pcf, respectively, find:
a. The required width of the base;
b. The pressures at the toe and at the heel of the dam. 

Water surface
27 ft
P
9 ft
heel
3 ft
W₁
B
W₂
Rv
Rh
toe
Transcribed Image Text:Water surface 27 ft P 9 ft heel 3 ft W₁ B W₂ Rv Rh toe
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