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随着绿色建筑的兴起,结构使用性能和舒适度的控制会变得愈加重要。中华人民共和国国家标准,混凝土结构设计规范(GB50010-2010)指出对大跨度混凝土楼盖结构应进行竖向自振频率验算,并对不同结构楼盖的自振频率提出了具体要求,但并没有给出频率计算方法。所以有必要给出一个适用于工程实际的计算公式。运用能量法,并对比有限元分析软件的模型分析,提出了楼盖自振频率的简化计算公式,并对楼盖自振频率的控制方法进行了分析,发现一般情况下在满足变形控制的要求时,频率控制要求自然满足。
With the rise of green buildings, structural performance and comfort control will become even more important. People’s Republic of China national standards, concrete structure design code (GB50010-2010) pointed out that for large-span concrete floor structure should be vertical natural frequency check, and different structures of the natural frequency of the floor made specific requirements, but not Give the frequency calculation method. Therefore, it is necessary to give a calculation formula suitable for engineering practice. By using the energy method and comparing with the finite element analysis software model analysis, a simplified calculation formula of the natural frequency of the floor is proposed. The control method of the natural frequency of the floor is analyzed. It is found that under normal circumstances, When the frequency control requires natural satisfaction.