Geometrically Nonlinear Buffeting Response of a Cable-Stayed Bridge
Publication: Journal of Engineering Mechanics
Volume 130, Issue 7
Abstract
A geometrically nonlinear buffeting analysis of a cable-stayed bridge in the time domain is described. The bridge structure is modeled with three-dimensional thin-walled beam elements and three-dimensional elastic catenary cable elements. Spatially correlated wind velocity fluctuations are modeled and simulated using an algorithm for generating sample functions of a stationary, multivariate stochastic process according to its prescribed cross-spectral density matrix. Aerodynamic damping and aerodynamic stiffness are formulated based on experimentally determined flutter derivatives. The focus of this paper is on the effect of fluctuating components of the spatially correlated wind velocity on the geometrically nonlinear buffeting response for an 870 m cable-stayed bridge.
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Information & Authors
Information
Published In
Journal of Engineering Mechanics
Volume 130 • Issue 7 • July 2004
Pages: 848 - 857
Copyright
Copyright © 2004 American Society of Civil Engineers.
History
Received: Jun 26, 2001
Accepted: May 28, 2003
Published online: Jun 15, 2004
Published in print: Jul 2004
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