开敞式弧形屋盖的风压分布模拟分析  

Simulation Analysis on Wind Pressure Distribution of Open Type Arc Building Roof

作　　者：冯海英[1] 胡启平[1] 刘德乾[1] 

机构地区：[1]河北工程大学土木工程学院,河北邯郸056038

出　　处：《煤炭工程》2013年第11期120-122,共3页Coal Engineering

基　　金：河北省自然科学基金项目(E2011402057)

摘　　要：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,结构抗风优化设计,应结合实际风环境来确定优化措施。The Reynolds average method and the RNG k-εturbulence model were applied to the numerical simulation and analysis on the wind pressure distribution of the open type light weight material arc building roof with different size vertical baffle plates under the different wind directional angle. The study found that the parameters of the vertical baffle plates and the wind directional angle would have obvious influences to the wind pressure on the building roof and the general coefficient would be reduced with the size of the vertical baffle plate increased. With the wind directional angle increased, the size of the vertical baffle plate would reduce the influences to the wind pressure of the building roof. Therefore, the optimized design of the wind resistance structure should combine the actual wind environment to set up the optimized measures.

关 键 词：弧形屋面 风压分布 计算流体力学 优化设计 

分 类 号：TU312.1[建筑科学—结构工程]