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Pre-tensioning systems
In the previous unit we have seen different steps in a pretensioning operation. Tendon wires or strands (formed as a rope type arrangement made of several tendon wires) are stretched and concrete is cast in the moulds, as shown in Figure. When sufficient strength is gained by concrete due to hardening, tendon wires may be cut from outside and jacks may be removed.
Q. Explain about Differential settlement? Structural stability is not very much affected by uniform settlement of a structural system. Major amount of damages will be taking pl
difference between piles and pier
Q. Do you mean by Accelerated Aging? Accelerated ageing tests are conducted at elevated temperature of 100 o C to know the variation in hardness, UTS and elongation at break.
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A flitched beam consists of a wooden joist 150 mm wide and 300 mm deep strengthened by steel plates 12 mm thick and 300 mm deep one on either side of the joist. If the maximum st
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