基于线性流变模型的基础隔震系统的动力特性研究
Dynamic Characteristics of the Base Isolation System Based on the Linear Rheological Model

为了更准确地分析基础隔震系统的动态响应和隔离能力，构建服从Hooke定律、Kelvin/Voigt定律的线性流变模型，采用1977年罗马尼亚地震的数据资料，对该模型进行动力特性的理论分析和实验研究，然后建立相关参数的表达式，发现各参数受到黏性阻尼系数c的离散变化和角速度ω的连续变化影响较大。通过与实验对比发现所建立表达式是正确的。可以通过最大传递力Q0和运动传递率T来评估系统的动态隔离能力。
A linear rheological model obeying Hooke's law and Kelvin/Voigt's law was constructed in this study to ensure accurate analysis of the dynamic response and isolation capability of the base isolation system. Theoretical analysis and an experimental study of the dynamic characteristics of the model were conducted using the data of the 1977 Romanian earthquake. Then, the expressions of relevant parameters were established. The results show that the parameters are significantly influenced by the discrete variation of the viscous damping coefficient c and the continuous change of angular velocity ω. By comparing the experimental results, we determine that the established expressions are accurate. The dynamic isolation capability of the system can be evaluated using the maximum transfer force Q0 and movement transmissibility T.