A fully-coupled generalized model for multi-directional wind loads on tall buildings: A development of the quasi-steady theory

被引：20

作者：

Cui, Wei ^{[1
]}

Caracoglia, Luca ^{[1
]}

机构：

[1] Northeastern Univ, Dept Civil & Environm Engn, Boston, MA 02115 USA

来源：

JOURNAL OF FLUIDS AND STRUCTURES | 2018年 / 78卷

基金：

美国国家科学基金会;

关键词：

Line-like structures; Quasi-steady aerodynamic theory; Tall buildings; Coupled modes; 3D effects; Analytical formulation; PERFORMANCE-BASED DESIGN; EXCITED RESPONSE; SLENDER STRUCTURES; SHAPE CORRECTIONS;

D O I：

10.1016/j.jfluidstructs.2017.12.008

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

This study examines in detail the quasi-steady aerodynamic theory, which is widely applied in wind engineering for the evaluation of wind loads. The authors propose an alternative approach and a novel generalized aerodynamic formulation for the wind-induced dynamic response of a bluff body. The proposed formulation is applied to the dynamic analysis of tall buildings, considering multi-directional wind loads, aerodynamic damping and aerodynamic stiffness effects, and inter-modal structural coupling. Dimensionless Fourier transformation is used in the formulation to provide a general "unified formula" and new insights on the modeling and estimation of wind loads. One numerical example is presented to verify the validity of the formula; numerical simulations are compared against literature data (wind tunnel test results) for a benchmark building structure. (C) 2017 Elsevier Ltd. All rights reserved.

引用

页码：52 / 68

页数：17

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