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A survey of past test and numerical simulation studies on the low cycle fatigue behaviour of the welded I-section bracing members subjected to constant amplitude cyclic axial displacement was carried out. Based on the numerical simulation results, some empirical formulas for estimating the low cycle fatigue life are presented and compared with the empirical formulas obtained by tests. It's found that the web plate height-thickness ratio h 0 /t w has no significant effect on the low cycledoi:10.1016/j.proeps.2012.01.028 fatcat:mqw7u4p6rrg77log3ad3wbdghy