- 摘 要
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(1桂林理工大學南寧分校, 南寧 530001; 2 廣西交通科學研究院有限公司, 南寧 530007)
[摘要]為了研究周邊高層建筑對大跨屋蓋結構頂面風荷載產生的影響,以某科技交流中心風荷載風洞試驗為基礎,從受擾屋蓋總體受力和局部受力兩個方面分別研究了施擾高層建筑外形及其相對位置對風荷載干擾效應的影響。最后得出了施擾建筑外形改變對干擾效應的影響規(guī)律、施擾建筑處于不同干擾位置對干擾效應的影響規(guī)律以及各種外形施擾建筑的最不利干擾位置及平均靜風干擾因子(IF)最大值,為大跨屋蓋結構設計時的風荷載取值提供了試驗依據。
[關鍵詞]大跨屋蓋; 干擾效應; 風壓系數; 干擾因子
中圖分類號:TU973-2文獻標識碼:A文章編號: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
*廣西壯族自治區(qū)中青年教師基礎能力提升項目(KY2016YB908)。
作者簡介:王根偉,碩士,講師,Email:546363680@qq.com。