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Comparison of Wind Cross-Spectral Data with Models

by N. P. Jones, Johns Hopkins Univ, Baltimore, United States,
A. Jain, Johns Hopkins Univ, Baltimore, United States,
R. H. Scanlan, Johns Hopkins Univ, Baltimore, United States,



Document Type: Proceeding Paper

Part of: Probabilistic Mechanics and Structural and Geotechnical Reliability

Abstract:

Existing analysis procedures for the prediction of long-span bridge response to wind have until recently neglected the horizontal-vertical cross-spectral components of the wind under the assumption of quasi-homogeneous, isotropic turbulence. It has been shown that under atmospheric turbulence, the contributions of such cross-spectral components of wind are not insignificant. The paper presenta a comparison of the existing empirical formula for cross-spectral components and some field data recorded by the Federal Highway Administration (FHWA) at the Deer Isle-Sedgwick Bridge, Maine.

Subject Headings: Bridge components | Wind engineering | Span bridges | Highway bridges | Turbulence | Federal government | Existing buildings

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