（1桂林理工大学南宁分校， 南宁 530001； 2 广西交通科学研究院有限公司， 南宁 530007）

［摘要］为了研究周边高层建筑对大跨屋盖结构顶面风荷载产生的影响，以某科技交流中心风荷载风洞试验为基础，从受扰屋盖总体受力和局部受力两个方面分别研究了施扰高层建筑外形及其相对位置对风荷载干扰效应的影响。最后得出了施扰建筑外形改变对干扰效应的影响规律、施扰建筑处于不同干扰位置对干扰效应的影响规律以及各种外形施扰建筑的最不利干扰位置及平均静风干扰因子（IF）最大值，为大跨屋盖结构设计时的风荷载取值提供了试验依据。

［关键词］大跨屋盖； 干扰效应； 风压系数； 干扰因子

中图分类号：TU973-2文献标识码：A文章编号：1002-848X(2019)09-0115-05

Wind tunnel tests of interference effects of static wind on long-span roof from high-rise buildings

Wang Genwei1, Ma Jiangbo2, Liu Cunpeng1

(1 Guilin University of Technology at Nanning, Nanning 530001, China; 2 Guangxi Transportation Research & Consulting Co., Ltd., Nanning 530007, China)

Abstract:In order to study the wind load impact on the long-span roof structure by the surrounding high-rise buildings, based on wind tunnel tests of a science and technology exchange center, the interference effect of wind load of the high-rise buildings shape and the relative position were studied from disturbed roof overall force and local force. Finally, interference effect of high-rise buildings′shape, interference effect of relative position of the high-rise building, the most unfavorable position of the interference of the high-rise building, and average static wind interference factor(IF) maximum were obtained. This research can provide experimental evidence for wind load value of long-span roof structures design.

Keywords:long-span roof; interference effects; wind pressure coefficient; interference factor

*广西壮族自治区中青年教师基础能力提升项目（KY2016YB908）。

作者简介：王根伟，硕士，讲师，Email:546363680@qq.com。