TITLE:
A More Precise Computation of Along Wind Dynamic Response Analysis for Tall Buildings Built in Urban Areas
AUTHORS:
Shu-Xun Chen
KEYWORDS:
Tall Building, Wind Load Spectrum, Wind-Induced Vibration, Response Analysis, Structural Analysis
JOURNAL NAME:
Engineering,
Vol.2 No.4,
May
4,
2010
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.