不同结构参数下桥梁风障阻风性能试验  

Experimental research on wind resistance of bridge wind barrier under different structural parameters

作　　者：詹铠臻 林晓波 杨亚林 练江峰 侯海涛 刘功毫 胡磊 林立[3] ZHAN Kaizhen;LIN Xiaobo;YANG Yalin;LIAN Jiangfeng;HOU Haitao;LIU Gonghao;HU Lei;LIN Li(Xiamen Highway Development Center,Xiamen,Fujian 361000,China;College of Civil Engineering,Fuzhou University,Fuzhou,Fujian 350108,China;Fujian Provincial Key Laboratory of Wind Disaster and Wind Engineering,Xiamen University of Techonolgy,Xiamen,Fujian 361024,China;Xiamen Zhongping Highway Survey and Design Institute Co.,Ltd.,Xiamen,Fujian 361000,China)

机构地区：[1]厦门市公路事业发展中心,福建厦门361000 [2]福州大学土木工程学院,福建福州350108 [3]厦门理工学院风灾害与风工程福建省重点实验室,福建厦门361024 [4]厦门中平公路勘察设计院有限公司,福建厦门361000

出　　处：《福州大学学报（自然科学版）》2021年第2期217-224,共8页Journal of Fuzhou University(Natural Science Edition)

基　　金：国家自然科学基金资助项目(51708472);福建省高校产学合作项目(2020H6022);福建省普通公路科研基金资助项目(201010);厦门市科技计划资助项目(3502Z20173038);福建省交通运输科技项目(201903);建筑产业化闽台科技合作基地基金资助项目;厦门市风工程服务平台资助项目(3502Z20161016)。

摘　　要：为探究不同结构参数对桥梁风障阻风性能,通过风洞试验,获取不同构造形式的挡风障整体及局部流场分布规律.试验结果表明,不同风速下,桥梁风障后方折减规律一致.利用风速折减系数作为风障阻风性能评价指标,定量分析比较挖板圆孔式风障及障条式风障在不同风速工况下的阻风效果,发现安装桥梁挡风障后,车道上风速折减系数最低仅为裸桥工况的20%;同时对比分析孔隙率、障条宽度等结构参数对桥梁风障阻风性能的影响规律,试验结果为桥梁挡风障的设计提供了理论参考.In order to investigate the wind barrier performance of bridge wind barriers with different structural parameters,the wind tunnel tests were used to obtain the overall and local wind field distribution laws of wind barriers with different structural forms.Results show that under different wind speeds,the reduction law behind the bridge wind barrier is consistent.Using the wind speed reduction coefficient as the wind barrier performance evaluation index,the windshield effects of the digging board round hole wind barrier and the bar wind barrier under different wind speed conditions are quantitatively analyzed and compared.At the same time,the influence of structural parameters such as porosity and barrier width on the wind barrier performance of bridge wind barriers is analyzed.The test results can provide theoretical reference for the design of bridge wind barriers.

关 键 词：挡风障 风洞试验 障条宽度 孔隙率 

分 类 号：TU375.4[建筑科学—结构工程]