| 持续变刚度摩擦型阻尼器 |
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| 引用本文： | 滕睿,陈曦,王涛.持续变刚度摩擦型阻尼器[J].世界地震工程,2010,26(4). |
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| 作者姓名： | 滕睿 陈曦 王涛 |
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| 作者单位： | 中国地震局工程力学研究所,河北,三河,065201 |
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| 基金项目： | 国家重大研究计划培育项目(90915003); 中央级公益性研究所基本科研业务费专项项目(021800708) |
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| 摘 要： | 文中提出了一种具有持续可变滑移后刚度的摩擦型阻尼器。与传统摩擦阻尼器相比,这种阻尼器的滑移后刚度随变形增加而持续增长,承载能力显著提高。使用者可以根据不同地震水平下的性能目标调整输出力的大小,因此也为不同目标值下的结构控制提供了一种切实可行的方法。阻尼器采用套筒-活塞式结构,摩擦片通过橡胶层固化到活塞上,橡胶层同时为摩擦片提供面压。摩擦片与套筒内壁形成滑移面,该滑移面的内径沿轴向呈曲线变化,理论分析、数值模拟与试验结果表明,抛物线形的滑移面可提供呈三次函数关系的力与位移关系曲线,持续增长的刚度和出力,有利于改善结构的抗倒塌性能。
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| 关 键 词： | 摩擦 阻尼器 滑移刚度 被动控制 倒塌 |
A friction damper with continuously variable post-sliding stiffness |
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| TENG Rui,CHEN Xi,WANG Tao.A friction damper with continuously variable post-sliding stiffness[J].World Information On Earthquake Engineering,2010,26(4). |
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| Authors: | TENG Rui CHEN Xi WANG Tao |
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| Institution: | TENG Rui,CHEN Xi,WANG Tao(Institute of Engineering Mechanics,China Earthquake Administration,Sanhe 065201,China) |
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| Abstract: | A type of friction damper characterized a continuously variable post-sliding stiffness is proposed,which provides an increasing post-sliding force with the accretion of the deformation.It is possible to adjust the output force according to the performance targets at different earthquake levels,thus enlightening a practical approach to the explicit structural control to satisfy all of the required performance objectives.The proposed damper consists of a piston,a rubber layer,friction plates and the jacket.Th... |
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| Keywords: | friction damper sliding stiffness passive control collapse prevention |
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