【摘要】 研究采用阻尼器对连体高层结构的地震响应进行振动控制。首先从结构动力方程出发,推导了在主塔与连廊之间设置有黏滞阻尼器的有控结构的基本振动控制方程;进而通过数值模拟,以某实际工程为原型,尝试将连廊与主塔间的斜撑利用黏滞阻尼器进行替换,分别在不同地震激励下比较了有控结构和无控结构的地震响应。分析结果表明,采用黏滞阻尼器可以有效降低结构的层剪力、结构位移、加速度等地震响应;同时能量分析的结果也表明本文采用的减振方案在不同地震激励下都可以有效耗散地震能量,由此得出结论采用黏滞阻尼器提高连体高层结构的抗震安全性是可行的。更多还原

【Abstract】 Viscous damper is introduced to connected high-rise structure to reduce its seismic responses. The basic control equations of connected structure with viscous dampers installed between main towers and corridor are first derived from equations of motion. And then a numerical example taken from certain real project is analyzed,from which the tilted bracings are replaced by viscous dampers. The seismic responses of controlled and uncontrolled structures under different earthquake excitations are compared through numerical simulation. The results show that viscous damper can effectively reduce the shear force,displacement and acceleration responses. And also the energy analysis results indicate that the control scheme adopted in this simulation can effectively dissipate earthquake energy,and thus conclusions are drawn that using viscous damper can effectively increase the aseismic ability of connected high-rise structure.更多还原