文档介绍：硕士学位论文摘要消能支撑框架结构是近年来出现的一种新型消能减震结构形式,通过在框架柱间增设消能支撑体系即可形成消能支撑框架结构。这种结构不是采用传统的“强化”结构的抗震思路,而是通过消能支撑体系的非弹性变形消耗大量的地震能量,使结构地震反应大大衰减,从而保证主体结构在强震中的安全,因此消能支撑框架结构是一种安全可靠而经济效益又高的结构减震体系。本文主要研究了装设粘弹性阻尼器的钢结构。本文的主要研究内容: 本文推导了粘弹性消能支撑的水平控制力,研究了支撑中钢杆的刚度对消能支撑输出参数储存刚度和损耗因子的影响,给出了钢杆的合理取值。推导了单自由度体系和多自由度体系中附加阻尼比的计算公式。研究了粘弹性消能支撑的参数对附加阻尼比和结构变形的影响及粘弹性阻尼器的布置位置对附加阻尼比的影响。对一个六层钢框架建立了未安装粘弹性阻尼器和安装粘弹性阻尼器两种结构的有限元模型。用ANSYS对两种结构进行了结构的模态分析、多遇地震和罕遇地震下的动力时程分析。通过数值方法研究了粘弹性消能支撑钢框架的减震性能,证明了粘弹性阻尼器对结构振动控制的有效性。对安装粘弹性阻尼器框架结构中粘弹性阻尼器的布置位置和参数进行了优化设计。分别以层间位移和顶层位移为控制函数两种方法对阻尼器的位置和参数进行了优化,并对两种优化方法的结果进行了比较;通过多种工况,证明了这两种方法的有效性,提出了布置阻尼器的一些有益建议。关键词:粘弹性消能支撑;粘弹性阻尼器;阻尼比;弹塑性时程分析; 参数优化 Abstract The energy—dissipation braced frame structure,which forms by means of adding energy‘dissipation brace in span of pillars, is a new kind of energy。dlsslpatlon structure deVeloping in recent years. This kind of structure 1s not to adopt the traditional thinking of”strengthen’’structure, but to dissipate a great deal of earthquake energy by the distortion of the energy—dissipation brace system,reduce seismic response ot structure greatly,consequently, ensure main structure safety in strong motlon, so the energy—dissipation braced frame structure is a kind of structure that is safe and economic. This paper studied visco—elastic leVel controlling force of the brace was deduced· Parameters of the brace were studied .the relation between parameters and steel bar was obtained. The reasonable VaIue ofthe steel baf was formulas ofadding damping ration of the structure was deduced in sin91e— system and multiple_degree-f}eedom paper studied the parameters of the brace how to affect the adding damping ration and structure def6rmation. The relation between adding damping ration and position of the energy—dissipation braces was studied. Two frame buildings, with viscoelastic dampers and no dampers respectlVely, were simulated using finite element software.