< / span > < span风格=“字体类型:Arial, Helvetica,无衬线”> < span风格=“字体大小:14 px”>低阻尼橡胶轴承用于这项研究证明了一个线性行为adequate stiffness, but low energy dissipation. On the other hand, the sliding bearing demonstrated a high level of energy dissipation and a lack of ability to return to the initial state. The aforementioned isolators are both easy to build. Hence, a combination of these two bearings will yield an economic highly-efficient isolation system. This study was conducted on four- and eight-story structures with 3- and 5-span steel moment-resisting frames with an aim to find the optimum combination of the rubber and sliding bearings. SAP 2000 was used for the purpose of the nonlinear response history analysis. Two series of seven-piece accelerograms including near-source and far-source accelerograms were used. The combination of bearings was determined on the basis of far-source accelerograms while the performance of the combination was examined based on near-source accelerograms.