中文摘要：

研究目的：高速平稳行车的安全性、舒适性、巨大的列车活荷载对高速铁路桥梁支座的性能有着严格要求，一般的减隔震装置难以满足要求。因此，本文提出功能分离的设计理念，研发适用于高速铁路桥梁的功能分离型减隔震系统，并采用振动台试验验证功能分离型减隔震系统对高速铁路简支梁桥地震响应的控制效果。研究结论：（1）功能分离型减隔震系统工作后，桥面峰值加速度在不同烈度下减少幅度达30％～51％，证实了功能分离型减隔震系统的有效性，台面加速度被削弱程度仅与地震输入烈度大小有关，与输入地震波特性无关；（2）功能分离型减隔震系统工作机制遵循了本文建议的基于功能分离型减隔震系统的高速铁路桥梁减隔震设计原则；（3）地震强度对功能分离型减隔震系统的最大水平滑动位移影响较大，最大水平滑动位移随着地震强度的增大而增加，功能分离型减隔震系统复位状况良好，发挥了良好的滞回耗能和提供了足够的恢复力的功能，阻止能量向桥梁上部结构的传递；（4）调节功能分离型减隔震系统中的铅芯橡胶支座的水平刚度，可有效减小梁体在地震作用下的水平位移，提高功能分离型减隔震系统的适用性是进一步研究内容；（5）该研究结论可为减隔震技术在高速铁路简支桥梁中的设计和应用提供全新的思路和手段。

英文摘要：

Research purposes： High -speed smooth driving safety, comfort, huge live load on the high -speed railway bridge bearing performance have strict requirements, the general isolation device is difficult to meet the requirements. Therefore, in this paper a functional separation design concept is proposed, function separation isolation system is developed for the high - speed railway bridge, and the control effect of function separation isolation system on seismic response of high speed railway bridge is verified by shaking table test. Research conclusions： （ 1 ） After the function separation isolation system works, the peak acceleration of the bridge floor is reduced to 30% -51% under different intensities, which proves the effectiveness of the separated seismic isolation system. The degree of shaking table acceleration is only dependent on the magnitude of seismic input, and is independent of the input seismic wave characteristics. （2） The principle of seismic isolation design is proposed in this paper for the high -speed railway bridge based on the function separation seismic isolation system. The working mechanism of the function separation isolation system follows the principle of seismic isolation design. （3） The earthquake intensity has a great influence on the maximum horizontal slip displacement of the separated seismic isolation system, and the maximum horizontal slip displacement increases with the increase of seismic intensity. The performance of the function separation seismic isolation system is good, and the hysteretic energy dissipation and sufficient restoring force are provided to prevent the transmission of energy to the superstructure of the bridge. （4） To adjust the horizontal stiffness of the lead rubber bearing in the function separated seismic isolation system, it can effectively reduce the horizontal displacement of the beam under earthquake. Improving the applicability of unction separated seismic isolation system is the further research content. （5） The research resul