IS 456 के अनुसार, एक सतत बीम (continuous beam) को गहरी बीम (deep beam) के रूप में वर्गीकृत किया जाता है यदि प्रभावी स्पैन का कुल गहराई से अनुपात किससे कम हो:

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?