3.1 DESIGN OF FLEXURAL MEMBERS FOR BM AND SF BY L.S.M
LATERALLY SUPPORTED BEAMS – CLASSIFICATION OF STEEL BEAMS –
EFFECTIVE SPAN – DESIGN PRINCIPLES – WEB BUCKLING AND WEB
CRIPPLING – MINIMUM THICKNESS OF WEB – SECTIONS WITH WEBS
SUSCEPTIBLE / NOT SUSCEPTIBLE TO BUCKLING UNDER SHEAR
BEFORE YIELDING – DESIGN BENDING STRENGTH OF SECTIONS WITH
LOW SHEAR – EFFECT OF HOLES IN TENSION ZONE – NOMINAL SHEAR
STRENGTH AND DESIGN SHEAR STRENGTH OF SECTIONS –LIMITING
DEFLECTION OF BEAMS – DESIGN OF LATERALLY SUPPORTED SIMPLE
BEAMS FOR BENDING MOMENT AND SHEAR FORCE USING SINGLE /
DOUBLE ROLLED STEEL SECTIONS ( SYMMETRICAL CROSS SECTIONS
ONLY ) PROBLEMS – UNSYMMETRICAL ( BI – AXIAL ) BENDING –
DESIGN OF LATERALLY SUPPORTED PURLINS FOR SLOPED ROOF
TRUSSES ( FOR GIVEN VERTICAL UDL WITH BM COEFFICIENT 0.085 )
– SIMPLE PROBLEMS.
4.1 DESIGN OF SECTIONS FOR COMBINED ACTIONS
SECTIONS SUBJECTED TO BENDING MOMENT AND HIGH SHEAR
FORCE – EFFECT OF HIGH SHEAR ON FLEXURAL CAPACITY OF
SECTIONS – LIMITING VALUE OF SHEAR FORCE FOR FULL MOMENT
CAPACITY OF SECTIONS – REDUCED DESIGN STRENGTH OF PLASTIC /
COMPACT / SEMI COMPACT SECTIONS SUBJECTED TO HIGH SHEAR –
DESIGN OF SUPPORT SECTIONS OF CANTILEVERS AND CONTINUOUS
BEAMS – PROBLEMS