文档介绍：西南交通大学硕士研究生学位论文第1页摘要粘弹性阻尼器是一种有效的被动控制装置,它通过增加结构阻尼、耗散地震输入能量来减小结构的地震响应。由于其经济有效、安装简单,在结构的消能减震控制中具有广泛的应用前景,成为工程抗震技术的热点问题之一。本文分析了粘弹性阻尼器的力学性能和计算模型,阐述了粘弹性阻尼结构的分析与设计方法,分析和探讨了粘弹性阻尼器在框架结构控制中的应用及其优化布置。本文采用目前通用的大型有限元分析软件SAP2000,建立12层框架结构模型,采用两条典型地震记录对未安装粘弹性阻尼器、安装粘弹性阻尼器的两种框架结构进行罕遇地震下的动力时程分析,对比两种结构的各种地震反应(位移、速度、加速度等),证明了粘弹性阻尼器对结构振动控制的有效性。在安装粘弹性阻尼器的框架结构中采用了三种粘弹性阻尼器的优化布置方式,对比了不同优化布置方式对结构的控制效果。通过数据分析,得出各种优化方式的作用特点,提出对阻尼器优化布置有益建议。关键词:粘弹性阻尼器;框架结构:时程分析;层间位移;优化布置西南交通大学硕士研究生学位论文第fI页一I--_●___-I__—-_●__-_-I_-l●_-___-l_-__l●●_-_lI__一 Abstract The viscoelastic damper is akind of effective passivity control reduces the seismic response of structure by adding the damping and dissipating the seismic energy of the structure·The viscoelastic damper iseconomical and effective,and can be installed ithas 8broad application foreground,and e one ofthe hot problems within the seismic fortification techniques. In thepaper,I analyzed the mechanical performance andcalculation modal ofthe viscoelastic damper,discussed the design method offrame sturcutre with viscoelastic Optimum installation ofthe viscoelastic damper on the frame structure is SO be analyzed. A fini te element method SAP 2000 program isused to analyze the frame building with representatiVe seismic waves are adopted to anylyze the two frame building with viscoelastic damper and no damper the time—history analysis,we got pari son of seismi C response of the structure(di splacement, acceleration and velocity),and testified the efficiency of the viscoelastic optimum installtions of viscoelastic damper are used on the frame contrasting the analyzing results,the differences of vibration control between three optimum instalitions are given. The proposals in this paper can be used for the guidance of engineering design and pratical application. Key words:vi scoelasti cdamper;frame sturcutre;time—hi story analysi s; interstory drift:optimum instal lation 西南交通大学