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煤炭工程  2013 

开敞式弧形屋盖的风压分布模拟分析

DOI: 10.11799/ce201311040, PP. 120-122

Keywords: 弧形屋面,风压分布,计算流体力学,参数研究,优化设计

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Abstract:

采用雷诺时均方法与重整化群(RNG)k-ε湍流模型,对在不同风向角时,不同竖向挡板尺寸的开敞式轻质弧形屋盖风压分布进行了数值模拟与分析。研究发现竖向挡板尺寸与风向角两个参数对屋面风压有显著影响,总体型系数会随着竖向挡板尺寸增大而减小;总体型系数会随着风向角增大而减小;随着风向角增大,挡板尺寸对屋盖风压的影响也会减弱。因此,在结构抗风优化设计,应结合实际风环境来确定优化措施,给结构设计提供依据。

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