规则巨型框架表面风压分布数值模拟分析

Study on Numerical Simulation of Wind Load on Regulation Mega Frame Structure

风荷载对于建筑物来说是一种非常重要的荷载,尤其对高层和超高层的结构设计起着决定性的作用.因此如何准确预测建筑物表面的风压分布,以便进一步研究风荷载对结构的作用就显得非常重要.采用风洞模型试验和数值模拟计算相结合的方法,对规则巨型框架结构的表面风荷载进行了分析和研究.结果表明,采用数值模拟计算,不仅能够满足规则巨型框架结构的表面风压取值要求,而且可以完整地提供建筑物周围的风场环境,可为很多研究提供参考.

One of the critical loads in engineering design is wind load,especially for high-rise structure or multi-layer structure.If it succeed in estimating the exact distribution of wind pressure on the surface of buildings,it will facilitate research on the tolerance level of building’s by the wind.This paper adopts the wind tunnel test model and numerical simulation estimation mega frame and the results show that the numerical simulation cannot only satisfy the rules of mega-frame or high-rise structure on the surface values of wind pressure requirements,but it can also provide a wind environment around the buildings,which could provide a meaningful information for further research on wind load.