A gravity dam of trapezoidal cross section shown below, with one face vertical and a horizontal base is 20 m high and 4 m thick at the top. The water at the upstream vertical face stands 2 m below the crest of the dam. The specific gravity of the masonry is 2.4. Compute the base width of the dam when the resultant force will cut the extremity of the middle third considering the uplift pressure force varies uniformly 100% from heel to zero at toe.
A gravity dam of trapezoidal cross section shown below, with one face vertical and a horizontal base is 20 m high and 4 m thick at the top. The water at the upstream vertical face stands 2 m below the crest of the dam. The specific gravity of the masonry is 2.4. Compute the base width of the dam when the resultant force will cut the extremity of the middle third considering the uplift pressure force varies uniformly 100% from heel to zero at toe.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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- A gravity dam of trapezoidal cross section shown below, with one face vertical and a horizontal base is 20 m high and 4 m thick at the top. The water at the upstream vertical face stands 2 m below the crest of the dam. The specific gravity of the masonry is 2.4. Compute the base width of the dam when the resultant force will cut the extremity of the middle third considering the uplift pressure force varies uniformly 100% from heel to zero at toe.

Transcribed Image Text:A gravity dam of trapezoidal cross section
shown below, with one face vertical and a
horizontal base is 20 m high and 4 m thick at
the top. The water at the upstream vertical
face stands 2 m below the crest of the dam.
The specific gravity of the masonry is 2.4.
Compute the base width of the dam when
the resultant force will cut the extremity of
the middle third considering uplift pressure
force varies uniformly 100% from heel to
zero at toe.

Transcribed Image Text:4m
2m
18m
Note: Ry's distance is B/3 from the toe.
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