采用摩擦垫层及阻尼器对外套加层结构体系的减振研究

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英文篇名：Study on seismic response reduction for floor-increasing building system with friction bedding and dampers 中文刊名：地震工程与工程振动 英文刊名：Earthquake Engineering and Engineering Vibration 作者：李宏男 ; 刘光磊 ; 林立岩 英文作者：LI Hong -nan ; LIU Guang -lei ; LIN Li - yan (Shenyang Architectural and Civil Engineering Institute ; Liaoning Architectural Design and Research Institute) 中文关键词：增层结构 ; 摩擦垫层 ; 阻尼器 ; 地震反应 ; 减振控制 英文关键词：floor increasing structure ; friction bedding ; damper ; seismic response ; vibration reduction control 出版日期：2000-12-28 机构：沈阳建筑工程学院!沈阳110015,沈阳建筑工程学院!沈阳110015,辽宁省建筑设计研究院!沈阳110005 年：2000 期：04 出版单位：地震工程与工程振动

摘要

本文提出了一种耗能减震加层结构新体系，即利用旧有建筑顶层与加层结构之间的摩擦垫层井依靠在两结构各层连接点处增设的耗能阻尼器来吸收耗散能量的减振体系。在进行非线性动力分析过程中，首次建立了系统的结构模型，引入了一种新的库仑摩擦力表达式并对影响体系减振率的有关参数进行了研究。最后通过对一实际工程的设计和计算，验证了这种加层减振做法的有效性。
This paper presents a new type of energy dissipation floor-increasing structural system, which uses the friction bedding set between the outer floor-increasing structure and the top floor of the original building, as well as the energy dissipation dampers set between the connecting points on each lower floor. The structural model of this system and the new Coulomb friction representation are introduced into the nonlinear dynamic analysis. Special attention is also paid to the study of parameters which affect the decreasing rate. Finally, an existing engineering project, designed in this newly developed model, is presented to illustrate the effectiveness of the approach.

引文

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    [4] N. Mostaghel T. Davis. Representations of Coulomb friction for dynamic analysis[J], Earthquake Engineering andStructural Dynamics, 1997. Vol .26, No.5.