Correct Answer:
Option B - Imperfections in a compression member–
• Common hot rolled and built up steel memebrs used for carrying axial compression usually fail by flexural buckling.
• The buckling strength of these members is affected by residual stresses, and accidental eccentricities of load.
• To account for all these factors the strength of member subjected to axial compression is defined by buckling class a, b, c, d are given table 7 in IS 800 : 2007.
B. Imperfections in a compression member–
• Common hot rolled and built up steel memebrs used for carrying axial compression usually fail by flexural buckling.
• The buckling strength of these members is affected by residual stresses, and accidental eccentricities of load.
• To account for all these factors the strength of member subjected to axial compression is defined by buckling class a, b, c, d are given table 7 in IS 800 : 2007.