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Get Full Access to Engineering Mechanics: Statics - 14 Edition - Chapter 9 - Problem 9-122
Get Full Access to Engineering Mechanics: Statics - 14 Edition - Chapter 9 - Problem 9-122

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# . The concrete gravity dam is held in place by its own ISBN: 9780133918922 126

## Solution for problem 9-122 Chapter 9

Engineering Mechanics: Statics | 14th Edition

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Problem 9-122

. The concrete gravity dam is held in place by its own weight. If the density of concrete is rc = 2.5 Mg>m3 , and water has a density of rw = 1.0 Mg>m3 , determine the smallest dimension d that will prevent the dam from overturning about its end A. A d 1 m 6 m d 1 Prob. 9122

Step-by-Step Solution:
Step 1 of 6

Problem 9-122

. The concrete gravity dam is held in place by its own weight. If the density of concrete is pc = 2.5 Mg/m3 , and water has a density of pw = 1.0 Mg/m3 , determine the smallest dimension d that will prevent the dam from overturning about its end A.

Step by step solution

Step  1 of 6

First we will find the  minimum value of d so that the dam does not tip over point A due to the water pressure. The density of water is pw = 1 Mg/m3 and the density of concrete is pc = 2.5 Mg/m3

All we have to do is to find every external force that acts on the dam and then use the equilibrium condition for the rotation about point A to get the distance d.

Since we are not given the length of the dam we will have to calculate the force on the one slice of the dam F/b

Step 2 of 6

Step 3 of 6

##### ISBN: 9780133918922

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