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在对贮仓做动力分析时,把仓体视为刚体,在某种条件下,仓体绕过质心的水平轴的旋转,将对仓顶建筑物的水平地震力产生一定影响,计算出的仓顶建筑物的水平地震力放大系数,大于《工业与民用建筑抗震设计规范》TJ11—78中规定的3;仓顶建筑物的水平地震力放大系数随仓体与仓顶建筑物的质量比而变化,同时也随仓体支柱与仓顶建筑物支承的刚度比而变化,可以画出放大系数曲线,找出发生鞭梢效应的条件。
In the dynamic analysis of the silo, the bin body is regarded as a rigid body. Under certain conditions, the rotation of the bin body around the horizontal axis of the center of mass will have a certain influence on the horizontal seismic force of the warehouse structure. The horizontal seismic force amplification factor of the warehouse roof structure is greater than that specified in TJ11-78 of the Code for Seismic Design of Industrial and Civil Buildings; the horizontal seismic force amplification factor of the warehouse roof structure is proportional to the mass of the warehouse body and warehouse roof structure. The change, at the same time, also varies with the stiffness ratio of the pillars of the warehouse and the support of the roof of the warehouse. The amplification factor curve can be drawn to find the conditions for the occurrence of the whiplash effect.