【摘要】 为提升针对主变压器等电力设备系统的隔震效率，提出一种具备双重耗能机制的新型隔震支座（Frictional Laminated Rubber Bearimg,FLRB），在不同地震作用下分别体现摩擦耗能或铅芯耗能。对应用FLRB的单质点模型进行了时程分析，结果显示FLRB支座在地震作用较小时摩擦耗能起主导作用，地震作用较大时，摩擦耗能和铅芯耗能作用相当。与铅芯橡胶支座LRB相比，同一地震作用下，FLRB可消耗更多的能量，整体水平位移更小，具备更高的水平变形储备。研究结果可应用于高烈度地震作用下电力设备或建筑结构的隔震设计，极罕遇地震作用下FLRB具备显著优势。更多还原

【Abstract】 To improve the efficiency of isolation systems for main power transformers(MPT) or other power equipments, this paper proposes a new type of seismic isolator(Frictional Laminated Rubber Bearing, referred to as FLRB later in the text) with a dual energy dissipation mechanism, which can dissipate energy by friction or lead core respectively under different seismic intenses. Time history analysis has been completed for the SDOF system with FLRB applied. The results show that when the seismic motion is small, the energy is mainly dissipated by friction, when the seismic motion is strong, the friction and lead core dissipate the energy at the same time. Compared to the laminated rubber bearing(LRB), the FLRB can dissipate more energy with a smaller deformation, which means the FLRB can withstand larger deformation. The research findings of the paper can be applied in the seismic isolation design of electric equipemens or buildings in high intense earthquake area, the FLRB will perform much better under extreme rare earthquake motion.更多还原