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深圳市当代艺术馆与城市规划展览馆(简称“两馆”)为体型特别复杂的结构,包含大悬挑结构。由于大悬挑结构对人行激励可能会非常敏感,故需要对竖向激励产生的楼板振动问题进行分析。本文利用软件MIDAS/Gen进行分析,首先考察结构的竖向振动模态,再输入人行激励,求出楼板的共振频率及对应的峰值加速度,从而对楼板振动舒适度进行评判。
Shenzhen Museum of Contemporary Art and Urban Planning Exhibition Hall (“” two museum ") is a particularly complex body structure, including large cantilevered structure. Because the large cantilevered structure may be very sensitive to pedestrian stimulation, it is necessary to analyze the floor vibration caused by vertical excitation. In this paper, the software MIDAS / Gen is used for the analysis. Firstly, the vertical vibration mode of the structure is investigated. Then, the excitation of the pedestrian is input to obtain the resonant frequency of the floor and the corresponding peak acceleration. The vibration comfort of the floor is evaluated.