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Recognize the losses of prestress
Recognising the losses of prestress which take place after the prestressing OF concrete structural elements, it is to be appreciated that prestresses of an order of 100 to 250 N/mm2 is generally lost due to various reasons. If the losscs of stresses are to be a small portion of the initially induced prestresses. the tendon material should be able to sustain a very high stress - say about 1200 to 2000 N/mm2. This high value of strength may not be available in mild steel and high strength steel which is used in reinforced cement concrete. This tact clearly emphasises the necessity of having tendon steel of a high strength grade.
Q. Application of bitumen to driven piles? In a certain area of H-piles subjected to ground water table fluctuation, painting is occasionally applied on the surface of H-piles
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Extreme fiber stresses at the mid span section of the beam A pre-stressed concrete beam, of cross section 300 mm x 500 mm and 8 m span, is pre-stressed with a parabolic tend
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Define Role of Diver in Underwater Inspection of Bridge? Diver's role is primarily to point out a potential scour problem. The diver can use one of the following equipment to m
• A potential source of harm - Mechanical hazard - Electrical hazard - Cutting hazard - Toxic hazard - Fire hazard - Explosion hazard
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Question-Why is span length ratio of end span, approach span to its neighbouring inner spans typically about 0.75? Answer-From aesthetic point of view, odd number of span
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