Abstract
Abstract An alternative aeroelastic modelling technique for the response predictions of tall buildings in two fundamental translational modes, namely a two-degree-of-freedom base hinged aeroelastic (BHA) model, is proposed. This modelling technique has all the advantages of the conventional “stick” model in terms of its simplicity and its ability to readily change the mass, stiffness, structural damping and geometry of the building model and also has the ability to model coupled translational–torsional motion (complex motion). It is found that the frequencies of vibration of the BHA model can be accurately predicted by means of a free-standing-cantilever model and the responses of the CAARC standard tall building in the along-wind and cross-wind directions observed by a BHA model are similar to those observed by a conventional “stick” model and other published records.
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