【摘要】 在湖南大学教育部建筑安全与节能重点实验室的HD-3大气边界层风洞中开展了CAARC高层建筑标准模型的风洞试验研究。对缩尺比为1∶300的CAARC模型,分别进行了D类地面粗糙度风场下的刚性测压试验和高频动态天平试验,并将所得到的试验结果与国外风洞研究机构的试验数据进行了对比分析。结果表明:HD-3大气边界层风洞能够有效地模拟大气边界层风场,其模拟方法是可行的;风洞实验室的设备(电子扫描阀系统和高频测力天平系统)及其测试技术、自编数据处理程序是可靠的,其试验所测量得到的数据是值得信赖的,可以承担建筑物刚性测压及动态测力方面的试验研究。建议其他风洞实验室也开展标准模型的风洞试验对比研究。更多还原

【Abstract】 Wind tunnel tests on commonwealth advisory aeronautical research council(CAARC) standard tall building model have been carried out in the HD-3 boundary layer wind tunnel at Hunan University key laboratory of building safety and energy efficiency of Ministry of Education.Both wind pressure test and high frequency force balance test were carried out at a geometric scale ratio of 1 /300 in exposure categories D.All the results gained from the tests were compared with those from overseas wind tunnel laboratories.The comparative results show that the HD-3 boundary layer wind tunnel could simulate atmospheric boundary layer wind flows effectively;the facilities in the wind tunnel laboratory include electronic pressure scanner and high frequency force balance,the measurement techniques,computer programs and software are reliable.The wind tunnel laboratory can undertake experimental study on building pressure test or dynamic force measurement.It is suggested that other wind tunnel laboratories should also conduct similar comparative studies based on the standard model tests.更多还原