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根据一座将建于强风区的大型体育场的实际建设情况,在风洞中对该体育场的一、二期工程分别进行了试验,测量了其主看台挑篷上的风压分布。对挑篷上的平均风压和脉动风压进行了仔细分析,并对干扰影响进行了讨论。得到主要结论:准定常理论可用于大型体育场单片挑篷风振分析,但由于气动干扰,准定常理论难以应用于同时有上、下游挑篷的风振分析;片条理论可用于单片挑篷风振分析。这些结论可为此类体育场挑篷的风振分析提供参考。
According to the actual construction of a large stadium to be built in a strong windy area, the first and second phases of the stadium were respectively tested in the wind tunnel to measure the wind pressure distribution on the main canopy. The average wind pressure and fluctuating wind pressure on the canopy were carefully analyzed, and the interference effects were discussed. The main conclusions are drawn as follows: The quasi-stationary theory can be applied to the wind-induced vibration analysis of monolithic canopies in large stadiums. However, the quasi-stationary theory can hardly be applied to the wind-induced vibration analysis of both upper and lower canopies due to the aerodynamic interference. Wind Vibration Analysis. These conclusions can provide references for wind-induced vibration analysis of such stadium canopies.