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桥梁结构MTMD被动控制机理及试验

, PP. 50-54

Keywords: 桥梁工程,多重调谐质量阻尼器,能量守恒原理,被动控制机理

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Abstract:

?为了研究桥梁结构多重调谐质量阻尼器(MTMD)被动控制的特点及减振效果,根据能量守恒原理推导出了地震作用下桥梁结构动能、阻尼耗能、应变能和地震输入能的增量表达式,并用VisualC++6.0语言编制了能量时程分析程序。基于桥梁的能量时程分析,从地震能量输入、地震能量分配与耗散2个方面阐述了MTMD的制振机理。最后通过MTMD振动台模拟试验验证了计算结果和制振机理分析的正确性。

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