作　　者： ; ;

机构地区： 同济大学土木工程学院土木工程防灾国家重点实验室

出　　处： 《建筑结构学报》 2002年第5期67-72,共6页

摘　　要： 在相邻建筑物的干扰下,受扰高层建筑的风荷载与其在孤立状态下相比会有较大的变化。本文采用测力天平模型风洞试验研究了两个高层建筑间的静力干扰效应,得到了两个相同的方形截面建筑在不同相对位置时的静力干扰因子IFm。并且首次引入了正交试验法设计试验方案,研究了施扰建筑高度、截面尺寸和外形对顺风向静力干扰因子IFm的影响。应用人工神经网络方法对试验结果进行了模拟和推广,给出了IFm的等值线图,可供规范应用和参考。 As the aerodynamic interference of neighboring buildings, wind loads on tall buildings are considerably different from those on isolated buildings. In this paper, wind induced mean interference effects between two tall buildings are researched by using high frequency force balance technique in TJ-1 boundary layer wind tunnel. The values of mean interference factors (IFm) at various configurations are presented. In addition, the orthogonal experimental method is introduced for the first time to design the experimental plan for studying the influences of the height, cross sectional dimension and shape of upstream building. The artificial neural networks method is used to deal with the experimental data and the IFm contour map is obtained as references for wind load codes.

关 键 词： 高层建筑 静风荷载 干扰效应

领　　域： [建筑科学]