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A More Precise Computation of Along Wind Dynamic Response Analysis for Tall Buildings Built in Urban Areas
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Abstract
Modern tall buildings are generally built in urban areas, where value of the terrain roughness length is much greater than that of the general terrain areas, therefore wind-induced vibrations become more pronounced. The present formulas of numerical analysis of wind-induced response become less accurate. A more accurate expression of along-wind load spectrum matrix is proposed. On the basis of the expression, structural analysis formula of along-wind displacement and acceleration response are developed and programmed. The rationality of these formulas are illustrated in examples.
KeywordsTall BuildingWind Load SpectrumWind-Induced VibrationResponse AnalysisStructural Analysis
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