大跨度屋盖表面风荷载稳态数值模拟建议  

Recommendations for the steady-state numerical simulation of surface pressures on large-span roof

作　　者：王敬烨[1] 张海军[1] 吴耀华[1] 

机构地区：[1]中国京冶工程技术有限公司,北京100088

出　　处：《建筑结构》2013年第S1期972-976,共5页Building Structure

摘　　要：结合近几年进行的大跨度钢结构工程的实践,并参考国内外的一些文献,从计算域的尺寸、网格的划分、边界条件、离散格式、湍流模型的选取、收敛性及结果的判定等方面给出了大跨度屋盖表面风荷载的数值模拟建议。并根据这些建议选取了三种典型(平屋盖、球面屋盖、鞍形屋盖)大跨度屋盖形式,与其风洞试验的测量结果进行了对比。最后以武汉天河机场航站楼工程和山东烟台全民健身馆工程为对象,分析了其风压分布规律,并与风洞试验的测量结果进行了验证。Based on the engineering practice of large-span steel structure in recent years and reference some of the literature at home and abroad,this paper gives the recommendations for the steady-state numerical simulation of surface pressures on large-span roof,including the computational domain,the division of grid,boundary conditions and discrete format,the selection of turbulent model and the judgment of the result. It researched the application of these methods on the three typical large-span roof form( flat roof,spherical roof,saddle roof). Eventually,through the analysis of the wind tunnel test and numerical simulation results of Wuhan airport terminal building and Yantai stadium,it verified the feasibility of these methods.

关 键 词：大跨度屋盖 风荷载 数值模拟 平均风压 

分 类 号：TU312.1[建筑科学—结构工程]