不同结构参数下桥梁风障阻风性能试验研究

为探究不同结构参数对桥梁风障阻风性能，本文通过风洞试验，获取了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，定量的分析比较了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%，同时对比分析了孔隙率、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。

Experimental research on wind resistance of bridge wind barrier under different

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.