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A cylindrical concrete tank, 30 m external diameter, is to be prestressed circumferentially by means of high-strength steel wire (E, = 2 x 105 N/mm2) jacked at 4 points, 900 apart. If the minimum stress in the wire immediately after tensioning is to be 450 N/mm2 and coefficient of friction is 0.5, calculate :
(a) The maximum stress to be applied to the wires at the jack, and
(b) The expected extension at the jack.
Preliminary settlement analysis for a building indicated a settlement of 50 mm in 4 years and an ultimate settlement of 250 mm. The average pressure increment in the clay stra
#questiohin..
Q. Show the Earth pressure on abutment? The magnitude of earth pressure coefficient in calculating the earth pressure on bridge abutment reliesconsiderably on the degree of res
Define Hardness - Chemical Characteristics of Water Caused by any polyvalent cations (mainly Calcium and Magnesium). Expressed as mg/l as CaCO 3 . Causes precipitates with soap
Q. Sand layer vs. cement sand used as bedding of precast concrete paving units Cement sand is a mixture of sand and cement and it behaves as a cohesive mass once mixed. Usuall
calculating OVERTAKING SIGHT DISTANCE
thickness of brick masonry
Determine about the Prestressed concrete Prestressed concrete is a special type of concrete in which internal stresses of a suitable nature, magnitude and distribution are int
A retaining wall, 6 m high, retains dry sand with an angle of friction of 30° and unit weight of 16.2 kN/m 3 . Verify the earth pressure at rest. If the water table rises to the to
Copper is a very durable material when exposed to weather and is soft enough that it can be simply molded to curved shapes like those in the Statue of Liberty. It is also tradition
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