एक कॉलम में अनुदैर्ध्य छड़ों (longitudinal bars) का न्यूनतम व्यास कितना होता 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?