Then an example of retrofit techniques of steel truss bridge is introduced, in which the concept of damage control design is adopted introducing an girder floor isolation system and hysteretic damper.

另外，还例举说明了钢桁架桥的改造，其设计引入了震害控制的观念，采用了桁架桥板梁隔震系统和滞后减振装置。

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Two optimal collocation methods are developed to acquire a better anti-vibration effect when the damper number is less than the floor number.

第一种方法是根据临界激励法确定计算所有可能布置位置中的临界阻尼，选择最小的临界阻尼位置作为最优配置。

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In this paper the response of a twelve-story frame structure installed with one MR damper at the bottom floor under four different earthquake acceleration excitations is analyzed, and r…

从这些问题出发，通过对一在底层安装了一个磁流变阻尼器的十二层结构在不同的地震波滤波工况下减振效果进行分析，得出不同频率输入和减振效果的关系。

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