Abstract
It is a challenging problem for scientists and engineers to calculate the random vibration responses of a large scale engineering structure, during which, the calculating efficiency and accuracy are always the main concerns. In civil engineering, there are some even more difficult cases that have to be considered, such as a large span cable-stayed bridge under multi-dimensional seismic loads consisting of evolutionary random processes. In this paper, such a problem is analyzed by using equivalent excitation method, in which the equivalent excitations are constructed by using continuous wavelet transform, and the affections of multi-dimensional seismic excitations are investigated. Simulations of a typical cable-stayed bridge show some of the plausible features of the method presented.
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