UNIT – II
COLUMNS AND STRUTS : INTRODUCTION – TYPES OF
COLUMNS – SHORT, MEDIUM AND LONG COLUMNS –
AXIALLY LOADED COMPRESSION MEMBERS – CRUSHING
LOAD – EULER’S THEOREM FOR LONG COLUMNSASSUMPTIONS- DERIVATION OF EULER’S CRITICAL
LOAD FORMULAE FOR VARIOUS END CONDITIONS –
EQUIVALENT LENGTH OF A COLUMN –
SLENDERNESS RATIO – EULER’S CRITICAL STRESS –
LIMITATIONS OF EULER’S THEORY –
RANKINE – GORDON FORMULA – LONG COLUMNS
SUBJECTED TO ECCENTRIC LOADING –
SECANT FORMULA – EMPIRICAL FORMULAE – STRAIGHT
LINE FORMULA – PROF. PERRY’S FORMULA.
BEAMS CURVED IN PLAN: INTRODUCTION – CIRCULAR
BEAMS LOADED UNIFORMLY AND
SUPPORTED ON SYMMETRICALLY PLACED COLUMNS –
SEMI-CIRCULAR BEAM SIMPLYSUPPORTED
ON THREE EQUALLY SPACED SUPPORTS