粘性剪切型阻尼器性能试验研究

分析了粘性阻尼器的力学特性，并介绍了其用于结构减震的优点．为了验证粘性剪切型阻尼器在实桥中的使用效果，并为大位移阻尼器的设计提供依据，本文在国内几座大型斜拉桥采用的拉索阻尼器设计参数的基础上进行了粘性剪切型阻尼器性能的大变形试验，通过对试验结果的统计分析，界定了有关试验回归公式的适用范围．试验认为阻尼器要达到更大的变位，需要有适当的板间间隙与之相适应．研究结论可为粘性剪切型阻尼器的设计和进一步研究提供参考．

Performance experiment for viscous shear damper

In the paper, the mechanics characteristic of the viscous dampers is analyzed, and the advantage for seismic design is presented. To examine the effect of the dampers used in bridges, and to provide design reference to dampers with large displacement, the performance of the dampers is tested based on the design parameter of dampers used in some cable-stayed bridges in China. By statistic analysis of experiment results, the applicable range of the related formula obtained by performance tests with small distortion is put forward. It is considered that the suitable clearance between the planks is needed to meet the large distortion of the dampers. The conclusion can be used as reference to the design and further research of the viscous shear dampers.