【摘要】 对于砌体结构提出具体的加层减震措施.由于在该程序中无现成的单元来模拟隔震层,根据程序特点和研究问题的本质,用组合单元和约束条件来模拟隔震层.隔震层采用双线性库仑摩擦阻尼恢复力模型和粘滞阻尼恢复力模型.用程序针对一栋4层砌体结构直接加层进行了动力时程分析.得出在地震作用下该房屋直接加层各层的最大位移和加速度.得出各层的位移和加速度动力时程曲线.对该房屋加层减震进行了动力时程分析.得出在地震作用下加层减震结构各层的最大位移和加速度.得出加层减震结构各层的位移和加速度动力时程曲线.最后,对计算结果进行了分析,得出一些有意义的结果和结论.更多还原

【Abstract】 Concrete measures for the masonry structure with added storey and seismic response decrease were put forward.Because no ready-made element can be used to simulate the isolation storey in the program,so according to the characteristics of the program and the essence of the analysis,combined elements and restrained factor were used to simulate the isolation storey.The bi-linear Coulomb damping hysteresis model and the viscous damping hysteresis model were used for the isolation storey.The dynamic time history was analyzed by the program on a four-storey masonry structure with direct storey-increasing.The maximum displacement and acceleration of every storey in the structure with direct storey-increasing under earthquake were given.And the time history curve of the displacement and acceleration of every storey in the structure were also obtained.The dynamic time history was analyzed on the masonry structure with added storey and seismic response decrease.Getting the maximum displacement and acceleration of every storey in the structure with added storey and seismic response decrease under earthquake.Getting the time history curve of the displacement and acceleration of every storey in the structure.At last,the calculation result was analyzed.Some useful results and conclusions were given.更多还原