A vertical ship lift under earthquake excitation may suffer from a whipping effect due to the sudden change of building lateral stiffness at the top of ship lift towers.
大坝升船机顶部厂房与底部塔柱结构之间的侧移刚度突变造成了顶部厂房强烈的地震鞭梢效应。
This change would cause insentive seismic whipping effect of the top building.
这样，在塔柱顶部钢筋混凝土平台就会产生侧移刚度的突变。
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