Base isolation is an efficient method to reduce the vulnerability of structures in high seismic risk zones.

As the core component, the performance of the isolation bearings greatly affects the safety and reliability of the isolation system. In this paper, a series of compression shear tests were performed on three scaled rubber bearings, test temperatures range from −30 to 20 °C and different levels of shear strains were considered. Experimental results show that a negligible variation in the performance parameters is associated to the change in shear strain, and characteristics of the bearings such as the equivalent stiffness, yield force and post-yield stiffness can be significantly affected by the temperature. Then the influence coefficient functions able to take into account the influence of temperature were formulated, and the analysis values at different temperatures are in good agreement with the corresponding experimental values. The temperature influence coefficient function can be used to predict the mechanical properties of rubber bearings at different temperatures.

基础隔离是减少高地震危险区结构易损性的有效方法。

作为核心部件，隔离轴承的性能极大地影响了隔离系统的安全性和可靠性。在本文中，对三个比例的橡胶轴承进行了一系列压缩剪切测试，测试温度范围为−30至20°C，并考虑了不同水平的剪切应变。实验结果表明，可忽略不计的性能参数变化与剪切应变的变化有关，轴承的特性（如等效刚度，屈服力和屈服后刚度）会受到温度的显着影响。然后制定了能够考虑温度影响的影响系数函数，不同温度下的分析值与相应的实验值吻合良好。