以一个典型混凝土框架结构模型为例,通过非线性时程分析方法,进行了隔震层的优化设计。研究了普通叠层橡胶支座和粘滞阻尼器组合使用时的优化配比、单独使用铅芯叠层橡胶支座时的优化铅芯含量,以及铅芯橡胶支座和粘滞阻尼器组合使用时的优化配比。提出了考虑功能性要求的基础隔震结构优化设计方法。
A typical RC frame is adopted to study the optimum design of the isolator layer through nonlinear time-history analysis.The optimum proportion of natural rubber bearing and viscous damper,the optimum volume of lead damper in the isolation layer,and the optimum proportion of lead damper and viscous damper were discussed.A new design method considering functionality of the base-isolation buildings was proposed.