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across-wind loads and effects of super-tall buildings and structures

Science China(Technological Sciences) 2011年第10期54卷 2531-2541页

作者： GU Ming QUAN Yong State Key Laboratory of Disaster Reduction in Civil Engineering Tongji University Shanghai 200092 China

across-wind loads and effects have become increasingly important factors in the structural design of super-tall buildings and structures with increasing height. across-wind loads and effects of tall buildings and structures are believed to be excited by inflow turbulence, wake, and inflow-structure interaction, which are very complicated. Although researchers have been focusing on the problem for over 30 years, the database of across-wind loads and effects and the computation methods of equivalent static wind loads have not yet been developed, most countries having no related rules in the load codes. Research results on the across-wind effects of tall buildings and structures mainly involve the determination of across-wind aerodynamic forces and across-wind aerodynamic damping, development of their databases, theoretical methods of equivalent static wind loads, and so on. In this paper we first review the current research on across-wind loads and effects of super-tall buildings and structures both at home and abroad. Then we present the results of our study. Finally, we illustrate a case study in which our research results are applied to a typical super-tall structure.

关键词： super-tall building and structure across-wind aerodynamic force across-wind aerodynamic damping across-wind effects across-wind quivalent static wind loads case study

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