大跨度开合屋盖的风致干扰效应研究  

Wind-induced interference effect of large-span retractable structure

作　　者：孙芳锦 尚俊晨 白松豪 张大明 徐中豪 SUN Fangjin;SHANG Junchen;BAI Songhao;ZHANG Daming;XU Zhonghao(College of Civil Engineering and Architecture,Guilin University of Technology,541004 Guilin,China;Guangxi Key Laboratory of Geomechanics and Geotechnical Engineering,541004 Guilin,China;College of Civil Engineering,Liaoning Technical University,123000 Fuxin,China;China Construction Third Engineerning Bureau Co.Ltd.,518000 Shenzhen,China;College of Information Science and Engineering,Guilin University of Technology,541006 Guilin,China)

机构地区：[1]桂林理工大学土木与建筑工程学院,桂林541004 [2]广西岩土力学与工程重点实验室,桂林541004 [3]辽宁工程技术大学土木工程学院,阜新123000 [4]中建三局集团(深圳)有限公司,深圳518000 [5]桂林理工大学信息科学与工程学院,桂林541006

出　　处：《应用力学学报》2022年第1期195-200,共6页Chinese Journal of Applied Mechanics

基　　金：国家自然科学基金资助项目(No.52178468);广西自然科学基金(No.2019GXNSFAA245037);广西青年创新人才科研专项(No.桂科AD19245012);广西建筑新能源与节能重点实验室自主课题(No.桂科能19-J-21-14);广西岩土力学与工程重点实验室课题(No.桂科能19-Y-21-2);桂林理工大学科研启动基金(No.GUTQGJJ2019042,No.GUTQDJJ2019041)。

摘　　要：采用计算流体力学(CFD)方法,研究了在不同开合情况下,受单体干扰建筑影响时大跨度开合屋盖结构的风压分布规律及风致干扰效应。首先采用TTU试验数据和风洞试验数据验证了CFD方法的准确性;然后研究了施扰建筑在不同条件下,目标大跨度开合屋盖表面的风压分布规律。研究结果表明:随着干扰建筑物与大跨度开合屋盖间距增大,结构表面的风压系数逐渐增大,遮挡效应减小;大跨度开合结构屋盖的开合情况对屋盖表面的风压系数的分布起着较为明显的影响作用;当周围存在干扰建筑时,大跨度开合屋盖的表面风压分布发生明显变化,风致干扰效应不容忽略。When there are other disturbing buildings around the retractable roof,the surrounding wind field changes,resulting in more complicated wind pressure distribution on the retractable roof,but the current research on the wind-induced disturbance effect of the long-span retractable roof structure is relatively limited.In the work here,computational fluid dynamics(CFD) method is used to study the wind pressure distribution and wind-induced disturbance of long-span retractable roof structures under the influence of individual buildings under different retractable conditions.First,TTU experimental data and wind tunnel test data are used to verify the accuracy of CFD method in this paper.Then the wind pressure distribution on the surface of the long-span retractable roof is studied under different conditions.The results show that with the increase of the space between the disturbed building and the long-span retractable roof,the wind pressure coefficient on the structure surface increases gradually,and the shielding effect decreases.The retractable conditions of long-span retractable roof have a significant influence on the distribution of wind pressure coefficient on the roof surface.Studies have shown that when there are disturbing buildings around,the distribution of wind pressure on the surface of large-span roofs has changed significantly,and the effects of wind-induced interference cannot be ignored.

关 键 词：大跨度开合结构 风致干扰效应 CFD 干扰因子 

分 类 号：TU33[建筑科学—结构工程]