Analyzes the equivalent shearing angle stiffness of viscous dampling structure. The shape function based optimization method proposed in this paper,the numerical examples verify the applicability of this method and obtain the optimum installation law of viscous dampers,play the fall role the viscous dampers’energy consumption capacity.%分析了粘滞减震结构等效层间剪切角刚度，提出了基于形函数的优化方法，通过算例，论证了该方法的适用性，并且得到了粘滞阻尼器优化布置的规律，有利于充分发挥粘滞阻尼器的耗能能力。
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