带裙房建筑结构表面风压的数值模拟分析

针对目前《建筑结构荷载规范》无法给出体形复杂结构表面风压分布的缺点，基于计算流体力学与大气边界层理论，利用CFD数值模技术对带裙房的建筑结构表面风压分布进行了分析。研究结果表明，数值模拟得到的建筑结构迎风面体形系数与规范数据吻合较好；只有建筑物的迎风面处于正压区域，其余面均处于负压区。相关成果可为建筑物抗风设计提供可靠依据。

Numerical simulation analysis of surface wind pressure on buildings with podium

The current loading code for the design of building structures cannot provide the surface wind pressure distribution of complex building structures. On the basis of computational fluid dynamics and atmospheric boundary layer theory, the surface wind pressure distribution of buildings with podium was analyzed with CFD numerical simulation technology. The research results show that the shape coefficients of building windward side obtained from numerical simulation agree with the code data well, and only the windward side of the building is in positive pressure area while other sides are in negative pressure area. The research achievements can provide reliable basis for wind resistance design of buildings.