Abstract
Abstract A linearised wind loading model is developed in time domain for an element at an arbitrary attitude in the flow. The fluctuating loading is linked to a FEM program (USFOS), based on the so-called structural unit method. The initial steps of establishing multi-dimensional correlated time series of the flow from one point spectra and coherence functions are obtained by Monte Carlo simulations and regular FFT-procedures. Examples of a rigid beam, a cantilevered beam, a simply supported beam and a T-shaped bridge, have been studied. It has been focused on the effects of the decay parameter in a simple root-coherence description and on the size of finite elements in the computational model. An example of non-linear dynamic response has been included by adopting a bilinear moment–curvature relationship for the spring of the T-shaped model.
Published Version
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