IS 456:2000 के अनुसार, 12 mm व्यास की अनुदैर्ध्य छड़ों (longitudinal bars) का उपयोग करके 200 mm × 200 mm आकार के RCC कॉलम को प्रदान किया जाने वाला न्यूनतम नाममात्र आवरण (nominal cover) कितना है?

For axial load and combined biaxial bending moment in the iteration formula used by IS 456, αn is based on Pu / Puz, where Puz is given by:

A compression member is considered to be short if its slenderness ratio satisfies which of the following conditions?