【摘要】 提出采用磁流变阻尼器MR控制钢筋混凝土框架—剪力墙偏心结构的扭转反应,并分析影响因素及规律。采用Matlab/Simulink工具进行数值仿真实验,分析MR阻尼器的控制策略、MR阻尼器数量以及竖向布置、水平布置等因素对偏心结构扭转反应控制效果的影响。结果表明:MR阻尼器能够有效控制偏心结构的扭转反应,其中半主动控制策略可以取得较稳定的控制效果,MR阻尼器数量和位置对结构扭转反应的控制效果具有较大影响。更多还原

【Abstract】 Magnetorheological dampers are used to control the torsional response of a 3-floor R.C.frame-shear wall of eccentric structure.By using Matlab/Simulink,a numerical simulation experiment is made to analyze the effects of the factors,such as control strategy,the location and number of MR dampers on torsional seismic response control.The results indicate that MR dampers are quite effective for attenuating the torsional seismic response.And the semi-active control strategy can achieve higher performance levels as compared to those of the two passive control strategies.The location and number of MR dampers have significant effect on the torsional response control.更多还原