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Why we need a high strength concrete in prestressing
There is another aspect to why we need a high strength concrete in prestressing. Prestressed concrete is subjected to high values of compressive, tensile. shear. bond and bearing stresses. In the case of post-tensioned concrete. anchorages occupy a little cross-sectional area of concrete at the ends. Through these small areas, the prestressing force of a high magnitude is transferred to the concrete member. If the strength of concrete is not adequate, the anchorages may locally damage the end portion of concrete member and may punch inside concrete. If this happens, a major portion of tendon stresses may get lost.
Maximum shear stress: The state of stress at a critical point of a strained solid is given by σ x = 70 kN/mm 2 , σ y = - 50 kN/mm 2 and τ xy = 45 kN/mm 2 . If the strength
• A potential source of harm - Mechanical hazard - Electrical hazard - Cutting hazard - Toxic hazard - Fire hazard - Explosion hazard
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Sir morng..i know about WCB AND RB.With diagram..pls help me sir
Permissible Stresses in Steel As per the Indian code, the permissible stresses in the tendons at the time of initial prestressing should not exceed 80% of the characteristic t
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Question What is key meaning of excellence of bentonite slurry in construction of diaphragm walls? Answer Quality of slurry plays a significant role in quality of di
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