Experimental investigation on buckling analysis of hexagonal castellated column

Abstract

Perforated-web steel sections have been used as structural members since the Second World War in an attempt
to enhance the flexural behavior without increasing the cost of the material. Hexagonal castellated column is the
modified column in which width of column is increases by castellation process without increasing the self weight of the
section. The buckling of column can be found out by many methods in which mathematical analysis, finite elemental
analysis, experimental analysis and software analysis. In this paper the buckling analysis of column is found out by
experiment and this is compare with the Ansys software. This project contain castellated column and this column is
analyses for four end condition like both end fixed, both end pinned, one end fixed one end pinned and one end fixed one
end free. Due to the castellation the radius of gyration of column get increases and slenderness ratio get decreases so
that load carrying capacity of column increases. The main benefit of using a castellated column is to increase its
buckling resistance about the major axis. However, because of the openings in the web, castellated columns have
complicated sectional properties, which make it extremely difficult to predict their buckling resistance analytically.