Wind-induced fatigue design of a cruciform shaped mast

The cruciform shaped mast over 47 storey, Telecom Corporate Building in Melbourne, Australiarnrises to a height of approximately 25 m above the roof level. As the members are subjected to very highrnfluctuating loads under wind, the design was mainly governed by wind-induced fatigue. A detailed fatiguernanalysis was carried out according to the requirements of the Australian Steel Structures Code, AS4100.rnThe wind-induced fatigue analysis procedure is described in the paper. The fatigue design of this mast isrnused as an example to illustrate some potential problems of relevant specifications in AS4100 and tornoutline some of the more important parameters in the fatigue analysis.