Wind-Induced Response of Torsionally Coupled Buildingsby M. Saiful Islam, Cornell Univ, United States,
Bruce Ellingwood, Cornell Univ, United States,
Ross B. Corotis, Cornell Univ, United States,
Abstract: This paper summarizes the results of a comprehensive three-dimensional dynamic analysis of tall buildings subjected to fluctuating wind forces. Random vibration theory is used to relate rms building accelerations to dynamic alongwind, acrosswind, and torsional forces. Wind tunnel pressure measurement data are analyzed to determine force spectra and correlations between the different force components. The effects on building response of statistical correlation between the force components and eccentricities in the centers of rigidity and/or mass from the geometric center are examined.
Subject Headings: Wind forces | Three-dimensional analysis | Dynamic structural analysis | Building design | Structural dynamics | Torsion | Dynamic analysis | Vibration
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