Experimental and analytical investigations on the behaviour of building frames further to a column loss

Abstract

▪ In (Demonceau, 2008), the behaviour of steel and composite building frames further to a column loss, when significant membrane effects developed within the structure, is investigated.

▪ Main objectives: - To identify the parameters influencing the response of a structure further to a column loss; - To validate analytical and numerical tools requested to perform the different investigations; - To develop a simplified analytical method able to predict the response of a frame further to a column loss, taking into account the redistribution of the loads within the structure.

▪ To achieve these goals, analytical, numerical and experimental investigations have been conducted. In particular, an experimental test on a substructure simulating the loss of a column in a composite building frame have been performed at Liège University, as part of a RFCS European project titled “Robust structures by joint ductility” (Robustness, 2008).