Displacement-based optimal design method and its practices are discussed. That is, displacement-restriction devices are set in the isolation layer, target displacement is adopted as design value directly, then target performances of the structure are determined, and seismic energy input into the structure is reduced and dissipated in degree. Optimal design of an actual isolated structure indicates that target performances of the structure are improved , and characters of the isolators are fully used.%探讨了基于位移的隔震优化设计方法及其实现形武,即通过在隔震层设置限位装置,直接采用目标位移作为设计值,由此明确了结构的目标性能,并确保能够最大限度地隔离和耗散地震传入结构的能量.通过一个实际工程的隔震优化设计表明,隔震结构的目标性能得到了改善,同时隔震器的特性也得到了充分利用.
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