The diameter of longitudinal bars of a column should never be less than?

Related MCQs

• Calculate the spacing of 5mm wires having a loss ratio of 0.075, compressive stress is 10.75n/mm2, 5mm diameter wires stress is 1000n/mm2, 12 wires of 8mm diameter are stressed to 1200n/mm2(Nd = 840n/mm2)?
• Calculate vertical prestressing force if wires of 5mm diameter with an initial stress of 1000n/mm2 are available for circumferential winding and Freyssinet cables made up of 12 wires of 8mm diameter stressed to 1200n/mm2 are to be used for vertical prestressing?
• Live load for roof truss should not be less than
• At high shear locations in the girder web, principal plane will be              to longitudinal axis of member
• The nominal reinforcement provided for floor slabs stipulated by Indian standard code is not less than?
• The proportioning of tendons in design of prestressed concrete simple flat slab between the column and middle strips may be based on                      
• Determine the length of kennedy key required to transmit 1200N-m and allowable shear in the key is 40N/mm². The diameter of shaft and width of key can be taken as 40mm and 10mm respectively.
• wires of 8mm diameter stressed to 1200n/mm2 are to be used for vertical prestressing?
• Find vertical prestressing force if characteristic strength is 8.2, wires are stressed at 1000n/mm2, diameter is 150mm?
• Calculate minimum wall thickness given a cylindrical prestressed water tank of internal diameter 30m over a depth of 7.5m and the permissible compressive stress at transfer is 13n/mm2 and the maximum compressive stress under working pressure is 1n/mm2 and the loss ratio is 0.75?