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What is Thermo-electric prestressing
We know that, stretched tendons are used in prestressed concrete. Stretching of tendons may be accomplished by using jacks or by other means. Thermo-electric prestressing is just another method of stretching the tendon wiers. We know that if we increase the temperature of a metal, it expands. As the name suggests, in Thermo-electric prestressing, temperature of tendon wires is increased by passing electric current for a short duration. This temperature increase, taking place within 3-5 minutes, may be of an order of 300-400°C. The bars, which may undergo an expansion of about 0.4-0.5% in length, try to shorten at cooling butare checked by fixed anchors at the two ends.
SHEAR STRESS DISTRIBUTION INTO CIRCULAR SECTION DERIVATION
..describe how u can obtain the length of an inacceble length of a land when a river cross it
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Determine the stage of Cracking moment of pre-stress At the stage of transfer of pre-stress in the pre-stressed beam element, only the pre-stressing force and the self weight
Explain Coagulation Surface waters must be treated to remove turbidity, color and bacteria The traditional sand filtration is not sufficient in removing bacteria, viru
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determine the maximum positive and negative shear shear
The stresses acting on the plane of maximum shearing stress by a given point in sand are as follows: total normal stress = 250 kN/m 2 ; pore-water pressure = 88.5 kN/ m 2 ; shearin
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Explain the Inspection Tools for Underwater Inspection of Bridge? So many Inspection tools are available. The dive team should have access to the suitable tools and equipments
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