【摘要】 缩尺是解决静力与动力试验中条件与成本限制的常用方法之一，缩尺相似设计方法是再现足尺结构特性的关键环节，而黏滞阻尼器的缩尺相似设计方法对缩尺消能结构试验的精度具有重要影响。黏滞阻尼器在缩尺后阻尼指数很难保持一致，所以需要对缩尺后的黏滞阻尼器进行缩尺等效。从黏滞阻尼器理论分析入手讨论了黏滞阻尼器的恢复力模型与滞回耗能特性，并分析了阻尼指数对于滞回耗能影响。分别以线性与非线性黏滞阻尼器为足尺构件，分别研究了力位移等效法、能量位移等效法与力能量等效法缩尺模拟精度，以及阻尼指数对缩尺模拟精度进行分析。结果表明，线性黏滞阻尼器三种方法均一致，非线性黏滞阻尼器采用能量位移等效法得到的滞回曲线与缩尺目标最接近。足尺阻尼指数越大得到的滞回曲线与缩尺目标越接近，缩尺阻尼指数与足尺越接近滞回曲线与缩尺目标越接近。更多还原

【Abstract】 Scale is one of the common methods to solve the condition and cost limitation in static and dynamic tests, and the scale similar design method is the key process to reproduce full scale structure characteristics, and the scale similarity design method of viscous damper has an important influence on the accuracy of scale energy dissipation structure tests. Viscous dampers are difficult to keep the same damping exponent after scaling, so the viscous dampers after scaling need to be scaled equivalent. Based on the theoretical analysis of viscous dampers, the restoring force model and hysteretic energy dissipation characteristics of viscous dampers are discussed, and the influence of damping exponent on hysteretic energy dissipation is analysed. Taking linear and nonlinear viscous dampers as full scale components, the scale simulation precision of force displacement equivalence, energy displacement equivalence and force energy equivalence were studied, and the scale simulation precision was analysed by damping exponent. The results show that the three methods of linear viscous dampers are consistent, and the hysteretic curves of nonlinear viscous dampers obtained by energy displacement equivalence are closest to the scale target. The larger the full scale damping exponent is, the closer the hysteretic curve is to the scale target.更多还原