【摘要】 厚层橡胶支座(TRB)相比于普通叠层橡胶隔震支座(RB)具有较小的竖向刚度，其竖向隔震能力有所提高。但TRB竖向刚度小，在地震作用下，上部结构摆动效应增加。针对TRB的不足，结合预应力原理，提出一种新型的隔震装置，即预应力厚层橡胶隔震支座(PRB)。在已有试验的基础上，建立其隔震结构非线性分析模型，通过时程反应分析，研究了其对隔震结构摆动的控制。研究结果表明，PRB相比TRB对隔震结构的摆动转角具有良好的限制功能，地震强度越大，其限制功能越好。更多还原

【Abstract】 Compared with the conventional laminated rubber bearing, the thick rubber bearing has smaller vertical stiffness, and its vertical isolation capacity is improved. However, the vertical stiffness of TRB is small, and the swing effect of superstructure increases under earthquake action. To overcome the shortcomings of TRB, a new type of isolation device, namely the prestressed thick rubber isolation bearing(PRB), is proposed. On the basis of the existing tests, the nonlinear analysis model of the isolated structure is established, and the control of the swing of the isolated structure is studied. The results show that PRB has a better control than TRB on the swing angle of the isolated structure, and the greater the earthquake intensity is, the better the control is.更多还原