顶部带FPS-TMD系统的高耸结构风振控制效益分析

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振动与冲击 ›› 2018, Vol. 37 ›› Issue (6) : 142-148.

论文

吴玖荣周泽宇梁强武傅继阳

作者信息 +

Wind vibration control analysis of a supper highrise structure installed with friction pendulum typed tuned mass damper

WU Jiurong, Zhou Zeyu, LIANG Qiangwu, FU Jiyang

Author information +

文章历史 +

摘要

本文将摩擦摆FPS 和调谐质量阻尼器TMD系统相结合，建立和推导了顶部带FPS-TMD系统的高耸结构在风荷载作用下的风振控制非线性动力方程，讨论了利用Newmark- 法和迭代法结合求解上述非线性动力方程的解法。然后以广州新电视塔为例，通过选用影响其风振控制效果的不同参数（主体结构阻尼比，主次系统质量比，滑道不同摩擦系数以及滑道半径等）作用下的主体结构风致位移和加速度对比，对顶部带FPS-TMD系统的高耸结构风振控制效益进行综合分析。分析结果表明，相比无控结构而言，在不同控制参数情况下FPS-TMD系统具有不同的减振效果，通过合理选择FPS-TMD系统的控制设计参数，可使得主体结构能够达到最佳减振效率。

Abstract

By integrating the friction pendulum system (FPS) with the tuned mass damper (TMD) atop the highest floor of a highrise structure, the nonlinear dynamic equation for wind vibration control of the structure was proposed. The induced dynamic equation was solved by the Newmarkβ algorithm with internal iteration procedure. The new proposed FPSTMD system was then assumed to be installed atop the Guangzhou New TV Tower to investigate its wind vibration control efficiency. The effect of different structural parameters of the FPSTMD system on the windinduced displacement and acceleration response at the top of the Guangzhou New TV Tower were extensively investigated. These parameters mainly include the damping ratios of the main structure, the mass ratio of the secondary to primary structural systems, the friction coefficients and the radius of sliding chute. Comparing with the windinduced responses of the original noncontrolled structural system, the analyzed results show that more or the most efficiency for the windinduced vibration control could be obtained by selecting suitable design parameters of the FPSTMD system.

导出引用

吴玖荣周泽宇梁强武傅继阳. 顶部带FPS-TMD系统的高耸结构风振控制效益分析[J]. 振动与冲击, 2018, 37(6): 142-148

WU Jiurong, Zhou Zeyu, LIANG Qiangwu, FU Jiyang. Wind vibration control analysis of a supper highrise structure installed with friction pendulum typed tuned mass damper[J]. Journal of Vibration and Shock, 2018, 37(6): 142-148

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