ABSTRACT Large grandstands provide areas for human activities and leisure pursuits. The degree of vibration comfort for people has an important effect on the functionality of grandstands. In this paper, the changes of the dynamic properties of the stand owing to different human postures are demonstrated. The comfort degree for human vibration in the large stand is also examined by full-scale measurements and questionnaire surveys. In addition, the analysis of the influence of different parameters on acceleration responses of the stand is presented via numerical simulation. Thereafter, it has been observed that ISO10137-2007 and BS6472 are more suitable than GB10070 and AISC-11 for evaluating vibration serviceability owing to crowd jumping loads during football matches in the large grandstand environment. Moreover, it has been observed that females and the staff are more likely to feel uncomfortable during matches, whilst students younger than 30 years old are the least sensitive group to vibrations of large stands. When the frequency of the jumping loads is close to the fundamental frequency of the stand or the synergy rate is high, the resonance is more likely to occur, which should be avoided by designers and users.

中文翻译：

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大型看台动力特性及振动舒适度分析

摘要 大型看台为人类活动和休闲活动提供了场所。人们的振动舒适度对看台的功能有重要影响。在本文中，展示了由于人体不同姿势引起的支架动态特性的变化。大型展台人体振动的舒适度也通过实测和问卷调查进行检验。此外，通过数值模拟分析了不同参数对支架加速度响应的影响。此后，观察到 ISO10137-2007 和 BS6472 比 GB10070 和 AISC-11 更适合评估大型看台环境中足球比赛期间因人群跳跃载荷引起的振动适用性。而且，据观察，女性和工作人员在比赛中更容易感到不舒服，而 30 岁以下的学生对大型看台的振动最不敏感。当跳跃负载的频率接近支架的基频或协同率高时，更容易发生共振，设计人员和用户应避免这种情况。