防风网体型系数风洞试验研究

摘要

In view of the current national norm didn' t define the wind pressure coefficient of the wind-break net, We take the high frequency force balance ( HFFB)test in wind-tunnel for different windbreak nets, and get the pressure coefficients acting on the models. Test results show that, the wind pressure coefficient associate with section forms and porosity of the wind-break net,and given the correlation coefficients, these coefficients can provide a reference for the design of the wind-break.%鉴于现行国家荷载规范对防风网风荷载体型系数没有明确规定,对不同防风网网材进行了高频测力天平风洞试验,得到了作用在网材上的风荷载体型系数.试验结果表明:风荷载体型系数与网材截面形式和开孔率有关,并给出了相关系数,为防风网工程计算提供参考.