高层建筑测压风洞试验校准与不确定性的量化

Subjects: Mechanics >> Basic Mechanics submitted time 2023-04-24 Cooperative journals: 《应用力学学报》

肖飞鹏 李寿科 毛丹 卢倍嵘 李寿英

Abstract：
Wind tunnel tests for CAARC building are the best way to calibrate the reliability of wind tunnel tests of high-rise building.Wind tunnel tests were carried out for CAARC building with scale of 1/400 in exposure categories D.The effects of the reference pressure location and the sample size of wind tunnel tests on the mean and extreme wind pressure coefficients were studied.The results show that the reference position should be settled on top of wind tunnel above the model for open circuit wind tunnel,where the results are affected less by the turbulence.In order to obtain more stable extreme wind pressure coefficients,a minimum sample size of 15 is recommended.Furthermore,by conducting a comparative study with the test results of many institutions at home and abroad,the results of this paper are in confidence.And the modeling uncertainty of wind tunnel tests for tall buildings was quantified based on comparison with the test results of other institutions at home and abroad.

 Hits 576  Downloads 185  Comment