When designing steel structures, one must ensure that local buckl
A. quality control at the time of manufacture of rolled sections is very good
B. web depths available are small
C. web stuffiness is built-in in rolled sections
D. depth to thickness ratio of the web is always appropriately adjusted
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Right Answer is: D
SOLUTION
Local buckling:
Failure occurs by buckling of one or more individual plate elements like flange or web with no overall deflection is called local buckling. Plate elements of cross section may buckle locally due to compressive stresses.
The local buckling can be avoided before the limit state is achieved by limiting the width to thickness ratio of each element of a cross-section subjected to compression due to axial force, moment or shear.
The rolled steel sections are manufactured in such a way that depth to thickness ratio of the web is always appropriately adjusted so it meets the requirements of limiting width to thickness ratio specified in IS 800:2007.