LULEÅ I UNIVERSITY OF TECHNOLOGY L 2001:27 AT THF^I Column Buckling with Restraint from Sandwich Wall Elements Eva Hedman-Pétursson Department ot Civil and Mining Engineering Division of Steel Structures 2001:27 • ISSN: 1402 - 1544 • 1SRN: LTU - DT - - 01/27 - - SE