Abstract： The calculation model of the collision between the base-isolated structure and retaining wall was established according to the existing tests and collision model. The influence of contact stiffness, isolation joint width, peak ground acceleration (PGA) and the contact damping on dynamic response of isolation layer was researched. The results show that the contact stiffness has power function relationships with the maximum response displacement and maximum response velocity of the isolation layer, while has a proportional function relationship with the maximum response acceleration of the isolation layer. The isolation joint width is negatively correlated with the contact displacement (i.e., the difference between the maximum response displacement of the isolation layer and the isolation joint width) and the maximum response velocity of the isolation layer, and positively correlated with the maximum response acceleration of the isolation layer. PGA is positively correlated with the contact displacement, the maximum response velocity and acceleration of the isolation layer. The influence of the contact damping on the dynamic response of isolation layer is greatly affected by other parameters. When the contact stiffness is small and the PGA is large or the isolation joint width is small, the contact damping has an effect on the maximum response displacement, velocity and acceleration of the isolation layer. In other cases, the contact damping has almost no effect on the dynamic response of the isolation layer.
韩淼 蒋金卫 杜红凯. 接触动力学参数对隔震结构碰撞挡土墙#br#
动力响应影响分析[J]. 土木工程学报, 2020, 53(S2): 211-217.
Han Miao Jiang Jinwei Du Hongkai. Influence of contact dynamics parameters on the dynamic response of #br#
collision between isolated structure and retaining wall. 土木工程学报, 2020, 53(S2): 211-217.
