关于多层厂房振动的几个问题

多层厂房的振动属微振问题,具有空间传递效应,分析中要考虑楼板的竖向振动和振动叠加的影响。可以由试验确定多层厂房的动力特性参数如阻尼比、动力弹性模量及波速。对多层厂房振动影响最大的频率谱主要集中在第一频谱密集区。振动的综合效应与开动的设备台数有关。为减小振动的影响,在震源布置、结构选型和构造方面均应采取相应的措施。

Several Issues of Multistory Production Building Vibration

The vibration of multistory production building is characterized by micro wave and space transferring effect.The vertical vibration and superposition response should be considered in design.The character factors such as damp ration,dynamic elastic modulus and wave speed can be got by test.The frequency spectrum that affects the building vibration mostly concentrates in the first frequency density area.The synthesis effect of the vibration is related to the number of the running equipment.To diminish the vibration effect,some measures should be adopted in vibration source arrangement,structural lectotype and construction.