某剧院大跨度楼板振动舒适度分析
摘 要：本文以某剧场的大跨度楼板为分析对象，运用有限元分析软件SAP200对其进行自振特性与人群荷载作用下的动力时程分析。研究了不同荷载布置形式与人群激励强度对大跨度楼板结构振动响应的影响。同时采用我国规范对其舒适度进行评价。计算结果表明，大跨度楼板能够满足舒适度要求。
关键词：人群激励荷载；大跨度楼板；舒适度分析
中图分类号：TU375.2 文献标识码：A
Vibration Design of Theater’s Floor Systems
SUN Yan-kun XU Ke TIAN Li-qiang
（Beijing THCA Architectural Design & Consulting Institute, Beijing 100083,China）
Abstract: This paper studied the vibration response of the theater’s long-span floor under crowed loads. With the help of the FEM software SAP2000, the vibration characteristics analysis and human induced vibration responses were calculated and compared, considering different cases of load arrangement and load strength. At the same time, the vibration for long-span floor referring to CHINA CODE is analyzed. The results show that the long-span floor meets the requirements of comfort.
Key words: crowd load；long-span floor；comfortable degree
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