Experimental and Analytical study with Stiffened Web Cold Formed Steel Lipped Columns with Batten Sheets

Abstract

This project represents the laboratory test studies and finite element analysis on web stiffened cold formed lipped channel columns with batten sheets at reasonable space joined by means of bolt connection without varying slenderness ratio.The batten sheet exerting major impact, at the time of attaining maximum strength of the column and also in failure mode with respect to the loading conditions like eccentricity and axial conditions. From the base studies on AISI-S100:2007 sectional limitations, the cross section of the web stiffened channel column was modelled in this research work. After completion of laboratory studies, to calculate the ultimate stength and also the failure behaviour of the column models the research was extended to analytical studies with the help of ANSYS software. The regression analysis was carried out with the help of ANSYS software, in which the effect on varying loading conditions were investigated and concluded that the column strength gets decreased at eccentric loading conditions. The spacing between batten sheets could be (d? ?/3) for both the axial as well as eccentrically loaded columns. The proposed stiffened lipped column were experimentally studied for the varying batten space. With the results arrived form laboratory tests and calculated analytically, a comparison study was undergone in this research.