（中国中元国际工程有限公司， 北京 100089）

［摘要］从黏滞阻尼器减震结构的附加阻尼比公式出发，引入位移损失，推导了附加阻尼比与阻尼器出力、阻尼器等效串联刚度、结构刚度等参数之间的关系，提出最优损失率和损失刚度比概念。通过实际工程的参数分析，得到位移角减震率随阻尼系数、地震作用的变化规律，并用理论推导的结论对变化规律进行了解析。为应用黏滞阻尼器的消能减震结构优化设计提供了理论依据。

［关键词］黏滞阻尼器；附加阻尼比； 位移损失；消能减震设计

中图分类号：TU352-1+2文献标识码：A文章编号：1002-848X(2021)03-0098-05

Research on the influence of viscous damper  displacement loss on damping performance of structure

RAN Tianran, SHI Cheng, ZHANG Tongyi, ZHANG Nabin, HUANG Ming

(China IPPR International Engineering Co., Ltd., Beijing 100089, China)

Abstract:Starting from the formula of additional damping ratio of   damping structures with viscous dampers, displacement loss was considered to derive the relationship between the additional damping ratio and the damper output, the equivalent series stiffness of the damper and the structural stiffness. The concepts of optimal loss rate and loss stiffness ratio were proposed. Through the parameter analysis of the actual project, the variation rule of displacement angle reduction ratio with damping coefficient and earthquake action was obtained, which was analyzed by the theoretically deduced conclusion, providing a theoretical basis for the application of viscous dampers in the optimization design of energy-dissipated structures.

Keywords:viscous damper;additional damping ratio; displacement loss;energy-dissipated design

作者简介：冉田苒，硕士，工程师，Email:rtr2133@163.com；通信作者：石诚，硕士，高级工程师，一级注册结构工程师，Email: shichengcheng@139.com。