Abstract： Based on differential solutions of force and deformation equations，a simplified dynamic model for the high-rise isolated structure considering the attenuation law of the horizontal and vertical stiffness of the bearing and the structural rocking effect is proposed. The mechanical effects of rocking angle，compressive stress and shear strain on the horizontal and vertical isolation layers are shown. The shaking table tests were conducted on two isolated structures with the aspect ratio of 5 and 2.5，respectively. The test results show that the second-mode of the high-aspect ratio isolated structure is obvious. In addition，the rocking angle of the high-aspect ratio isolation layer is larger than that of the small-aspect ratio structure under ground motion. When the input ground motion peak is 0.6 g，the difference in rocking angle for the two types of structures is more than 5 times，and the rubber bearing of high-aspect ratio isolated structure shows tension. By comparing the theoretical calculation values of the horizontal，vertical and rocking responses of the isolation layer with the experimental measured values，it can be seen that the theoretical and experimental results are consistent. The rocking angle responses of isolated structures with four kinds of aspect ratio are analyzed by the theoretical model. The theoretical analysis shows that the rocking angle increases with the the aspect ratio. The isolated structure with large aspect ratio is more prone to rock，and the rocking angle of the isolation layer cannot be ignored. Therefore，the rocking response of the isolation layer and the tension of the bearing should be considered in the isolation design of high-rise structure.
何文福 李雪 许浩 刘文光 冯德民. 高层隔震结构提离摇摆耦合理论模型及振动台试验验证[J]. 土木工程学报, 2020, 53(3): 19-27.
He Wenfu Li Xue Xu Hao Liu Wenguang Feng Demin. Theoretical model and verification of shaking table test for high-rise isolated#br# structures coupling with uplifting and rocking. 土木工程学报, 2020, 53(3): 19-27.
