| 大跨屋盖结构的竖向MTMD减震控制 |
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| 引用本文： | 唐柏鉴,李亚明.大跨屋盖结构的竖向MTMD减震控制[J].特种结构,2007,24(1):64-67. |
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| 作者姓名： | 唐柏鉴 李亚明 |
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| 作者单位： | 1. 同济大学,建筑工程系,上海,200092
2. 同济大学,建筑工程系,上海,200092;上海建筑设计研究院,200011 |
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| 摘 要： | 建立了屋盖结构竖向MTMD的振动控制方程,根据屋盖结构振型密集的动力特性提出了三种MTMD设计思路。结合某工程实例讨论了屋盖结构MTMD的设计步骤和减震效果,结果表明MTMD对不同的地震波都有一定程度的减震效果,表现出良好的鲁棒性,响应峰值降低10%～40%;地震波对MTMD控制效果影响较大,应根据场地条件和结构特点选择合适的地震波进行分析。
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| 关 键 词： | 屋盖结构 多频调谐质量阻尼器 减震控制 |
Vertical Seismic Control of Long-span Roof Structure with MTMD |
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| Tang Baijian,Li Yaming.Vertical Seismic Control of Long-span Roof Structure with MTMD[J].Special Structures,2007,24(1):64-67. |
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| Authors: | Tang Baijian Li Yaming |
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| Abstract: | The dynamic equation of large-span roof structure with vertical MTMD is established and the three design strategies are presented according to the natural vibration characteristic of roof structure.Then the design procedure and the effect of seismic control of MTMD are studied through some specific project.The results of the time-history analysis show that the MTMD system can control the seismic responses from 10% to 40% under any earthquake wave and have the good robustness of the control effect.The spectral character of earthquake waves influences the effect of vibration control evidently,so the proper earthquake wave should be used to analyze the specific roof structure. |
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| Keywords: | Roof structure Multiple tuned mass dampers Seismic control |
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