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	滚轴式金属屈服耗能阻尼器数值模拟研究
	邓开来 ; 潘鹏 ; 陈浩文 ; 林劲松 ; DENG Kai-lai ; PAN Peng ; CHEN Hao-wen ; LIN Jin-song
	2016-03-30 ; 2016-03-30
关键词	桥梁结构 耗能构件 数值模拟 滚轴式阻尼器 耗能能力 bridge structure energy dissipation device metal damper roller steel damper energy dissipation capacity TU391
其他题名	NUMERICAL INVESTIGATION OF ROLLER STEEL DAMPER FOR BRIDGES
中文摘要	桥梁用阻尼器通常吨位和变形需求巨大,普通金属屈服耗能阻尼器难以满足其性能要求。为此该文提出一种新型的滚轴式金属屈服耗能阻尼器,并对其进行数值模拟研究。该阻尼器由一块平直耗能钢板及一组可转动辊轴组成,耗能钢板在辊轴之间穿过,受辊轴挤压产生塑性变形,从而耗散地震能量。该文采用在大型通用有限元软件ABAQUS建立了滚轴阻尼器的模型,通过该模型研究了辊轴个数以及辊轴间隙对阻尼器耗能性能的影响。分析结果表明:该阻尼器耗能性能受辊轴间隙和辊轴个数控制,通过合理的设计可以保证滚轴式金属屈服耗能阻尼器具备优良的变形能力和耗能能力。该文还提出了该阻尼器的恢复力计算公式,结合有限元仿真结果对计算公式进行了修正。; Dampers for bridges commonly requires large strength and deformation capacity, ordinary steel dampers have difficulties to satisfy the requirements. A novel roller steel damper is developed and numerical studies are carried out. The damper consists of a steel energy dissipation plate and a group of steel rollers, and the steel plate is extruded by the steel roller. Energy is dissipated through the plastic deformation of the energy dissipation plate. The damper was simulated by using a general finite element program called ABAQUS. The number of the steel rollers and the width of gaps between the steel rollers were adopted as simulation parameters.The results show that the energy dissipation capacity of the dampers is very satisfactory, and the number of steel rollers and the gaps between steel rollers have significant effects on the damper's performances. The calculation equation for estimating the strength of dampers is suggested based on the principle of virtual work, and further improved based on the analysis results.
语种	中文 ; 中文
内容类型	期刊论文
源URL	[http://ir.lib.tsinghua.edu.cn/ir/item.do?handle=123456789/149000]
专题	清华大学
推荐引用方式 GB/T 7714	邓开来,潘鹏,陈浩文,等. 滚轴式金属屈服耗能阻尼器数值模拟研究[J],2016, 2016.
APA	邓开来.,潘鹏.,陈浩文.,林劲松.,DENG Kai-lai.,...&LIN Jin-song.(2016).滚轴式金属屈服耗能阻尼器数值模拟研究..
MLA	邓开来,et al."滚轴式金属屈服耗能阻尼器数值模拟研究".(2016).

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