中文摘要：

通过开发的速度控制型实时子结构拟动力实验系统，研究天然橡胶支座（NR）、高阻尼橡胶隔震支座（HDR）和超高阻尼橡胶隔震支座（HDR—S）等速度相关型隔震支座对桥梁的隔震减震效果。基于速度控制的实时子结构拟动力实验系统，通过速度控制实现对橡胶隔震支座的实时拟动力加载，可以在实验过程中充分考虑到隔震支座的速度相关性对实验结果的影响，精确地模拟地震中隔震桥梁结构的地震反应。实验结果证明此系统对速度相关型隔震支座有足够的实验精度。通过对比3种不同性能的隔震橡胶支座的实验结果，验证了在不同地震条件下超高阻尼橡胶隔震支座对桥梁结构的隔震优越性。

英文摘要：

The real-time substructure hybrid test system which based on the velocity loading concept was developed to verify the isolation effects of nature rubber, high-damping rubber and super-high- damping rubber bearing isolators in bridge structure. The rubber bearing isolators have velocitydependent performance, and heavily depend on the rate of loading. Compared with the conventional test system, the developed test system considered the velocity-dependent performance of specimens, and controlled the tests procedure with velocity concept. Basing on the test results, the test system accuracy is confirmed. Compared with the test results of the nature rubber and high-damping rubber bearing, the best isolation effect of super-high-damping rubber bearing to the total bridge structural associated with the characteristics of the input seismic ground motion is also directly confirmed.