NOTE: Submit it by 02/07/13 i.e. by next Monday. A small viva will be taken during the individual submission.
Q1.
Please explain all the losses in Prestressing with their derivations & formulas.
Explain with the help of examples & diagrams.
Q2.
A simply supported beam with a cross-section as shown in Figure spans 15 m and carries a total uniformly distributed load, including self weight, of 50 kN/m. Determine the stress distribution at midspan If the beam is prestressed with a force of 2000 kN acting at following locations
a. Exactly at the centroid,
b. An eccentricity, e of 200 mm below the centroid.
where, a = 750 mm, b = 750 mm, c = 100 mm, d = 100 mm, h = 1000 mm.
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