【摘要】 摩擦摆支座(FPB)是一种有效的基础隔震设备,对摩擦摆支座进行精细化建模,并将其应用到K8型单层球面网壳结构中。首先,从结构顶点加速度和地震能量的输入两个方面分析竖向地震作用下摩擦摆支座对结构抗震性能的影响;其次,在不同地震动强度作用下,从结构的杆件动应力、节点加速度和节点竖向相对位移三个方面分析摩擦摆支座K8型单层球面网壳结构的抗震性能。分析结果表明:结构的顶点加速度明显减小;摩擦摆支座能够有效地隔离地震能量;不同地震动作用下应用摩擦摆支座单层球面网壳结构的抗震性能相近。更多还原

【Abstract】 As an effective base isolation device, friction pendulum bearings(FPB) were finely modeled and applied in the K8 single-layer reticulated domes in this paper. First, influence of friction pendulum bearings was analyzed on the seismic performance of single-layer spherical reticulated shell from two aspects, the peak acceleration and earthquake energy. Moreover, the seismic performance of structure with FPB was studied under different ground motion intensities from three aspects, the dynamic stress, the nodal acceleration, and the vertical relative displacement of nodes. The result showed that the peak vertical acceleration was reduced and a part of earthquake energy was isolated by using FPBs. Under the different ground motion intensities, the seismic effect of a K8 single-layer spherical reticulated shell structure with FPB was similar.更多还原