The minimum cube strength of concrete used for a prestressed member, is                  

Related MCQs

• The end block of a prestressed concrete beam has a rectangular section; a cable carrying a force of 200kn is to be anchored against the end block at the centre if the cube strength of concrete at transfer is 30n/mm2. Design the maximum permissible bearing pressure?(Abr = 10000mm2)
• The prestressed concrete slab systems are ideally suited for                      
• The proportioning of tendons in design of prestressed concrete simple flat slab between the column and middle strips may be based on                      
• The precast prestressed hollow core slabs, with or without topping is an important structural element in                      
• A simple prestressed flat slab is generally supported by a network of                      
• (i) tensile strength and yield property (ii) Ductility (iii) Welding (iv) Corrosion resistance
• Which of the following factors is included in the limit state of strength?
• The partial factor of safety for resistance governed by ultimate strength is :
• The design of shear connections depends upon the strength of                          
• If the surface is rough tamped and without links to withstand a horizontal shear stress of 0.6n/mm2 and assuming the moduli of elasticity of precast and insitu cast concrete to be equal the centroid of the composite section is located 110mm from the top of the slab, second moment area of composite section is 2487×105mm4, calculate ultimate shearing resistance?