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多层厂房楼层抗微震是多层厂房设计和生产中迫待解决的重要问题之一。为保证加工质量和精密设备、仪表的正常工作,楼层结构的动力计算要求有很高的精度,允许振幅常常是限制在几个μ的范围内。楼层结构具是密集的频谱结构,且一般是在共振前区和共振区工作。所以,为有较高的计算精度,重要的是能够准确的计算基频,把基频的计算误差控制在可能小的范围内。
The anti-microseismic property of the multi-storey factory building is one of the most important issues to be solved in the design and production of a multi-storey factory building. In order to ensure the processing quality and the normal operation of precision equipment and instruments, the dynamic calculation of the floor structure requires high accuracy, allowing the amplitude to be limited to a range of several μ. The floor structure has a dense spectrum structure and generally works in the pre-resonance and resonance areas. Therefore, in order to have a high calculation accuracy, it is important to be able to accurately calculate the fundamental frequency, and to control the calculation error of the fundamental frequency in a possibly small range.