A masonry dam of trapezoidal cross-section, with one end face vertical, has a thickness of 0.6 m at the top and 3 m at the bottom. It is 6.75 m high and the vertical face is subjected to water pressure, the water standing 4.6 m above the base at the upstream side. Assume that the hydrostatic uplift varies uniformly from 50% at the heel to zero at the toe. Use s = 2.4 for concrete. Compute the following: a. Vertical reaction of the foundation b. Distance of the vertical reaction from the toe. c. Factor of safety against overturning.
A masonry dam of trapezoidal cross-section, with one end face vertical, has a thickness of 0.6 m at the top and 3 m at the bottom. It is 6.75 m high and the vertical face is subjected to water pressure, the water standing 4.6 m above the base at the upstream side. Assume that the hydrostatic uplift varies uniformly from 50% at the heel to zero at the toe. Use s = 2.4 for concrete. Compute the following: a. Vertical reaction of the foundation b. Distance of the vertical reaction from the toe. c. Factor of safety against overturning.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:of trapezoidal cross-section,
end
A masonry
vertical,
dam
with
one
face
has a
thickness of
0.6 m at
the top and 3 m at
the
bottom.
It is 6.75 m high and the vertical
face is subjected to
the base at
the water standing 4.6 m above
the
water pressure,
upstream side. Assume that the hydrostatic uplift varies uniformly
from 50% at the heel to zero at the toe. Use s = 2.4 for concrete.
Compute the following:
a. Vertical reaction of the foundation
b. Distance of the vertical reaction from the toe.
C.
Factor of safety against overturning.
d. Factor of safety against sliding. Use u = 0.6
e. Maximum pressure along the base due to the forces acting on the
dam.
f. Minimum pressure along the base due to the forces acting on the
dam.
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