Behaviour of cold formed steel single and compound angles in compression

Abstract

The main objective of the study is to investigate the behaviour of newlinecoldformed steel single angles double angles weldedbacktoback and newlinestarred angles subjected to axial compression Experimental theoretical and newlineanalytical investigations were carried out The entire study is divided into newlinethree distinct phases newlineIn the first phase experimental investigations were carried out to newlinestudy the behaviour of coldformed steel single and compound angles One newlinehundred and thirty eight experiments were conducted on single and compound newlineangles of different crosssections Specimens were fabricated from six newlinedifferent types of steel and tested under three different end conditions Both newlineplain and lipped angles of various sizes were chosen to study their effect Flat newlinewidth to thickness ratio of elements both less than the limiting and greater newlinethan the limiting value as specified by Indian Standard code of practice was newlinechosen Eighty one specimens were tested as stub columns of slenderness newlineratios 10 15 and 20 Fifty seven tests were carried out on short columns of newlineslenderness ratios 25 and 30 newline newline