【作者】 黄誉；

【导师】 彭伟；

【作者基本信息】 西南交通大学 ， 结构工程， 2006， 硕士

【摘要】 工程结构振动控制是目前工程抗震技术中的研究热点问题之一,本文探讨的粘性阻尼器及其在高层偏心支撑钢框架结构控制中的应用,属于消能减震技术的研究应用。采用粘弹性材料制成的粘弹性阻尼器是一种典型的被动控制装置,它通过增加结构的阻尼,耗散结构的振动能量来达到减小结构地震响应的目的。由于其装置简单、材料经济,在实际结构振动控制中具有广泛的应用前景。 本文首先介绍了粘弹性阻尼器及偏心支撑钢框架在国内外的发展状况,进一步分析粘弹性材料和粘弹性阻尼器的力学性能,对安装粘弹性阻尼器的高层偏心支撑钢框架结构体系的设计方法进行了分析和探讨,对消能减震结构的能量设计方法进行了论述。 最后,算例建立了纯钢框架、中心支撑钢框架、偏心支撑钢框架+阻尼器,以及针对不同耗能梁段长度和不同支撑形式的偏心支撑钢框架加阻尼器的结构平面模型,运用大型有限元分析软件SAP2000对其进行了非线性弹塑性时程分析,通过对构件内力,结构位移等计算结果的分析,得出了一些结论,可供工程设计人员参考。更多还原

【Abstract】 The construction vibration control is one of the hot problems within the seismic fortification techniques now. The viscoelastic damper and the application of viscoelastic damper in the high-rise Eccentrically braced steel framein this paer,are part of the study about the application of the dissipate energy and reduce seismic responses techniques. The visconelastic damper that made of viscoelastic material is a kind of representative passivity control devices.It reduces the seismic response of structure by adding the damping and dissipating the vibration energy of the structure. Because this device is simply and the components are cheap, the visconelastic damper has a broad application foregroud.Firstly,this thesis presents the relevant developing situation of EBSF and VED inside and outside china,then analyzes the mechanics performance of viscoelastic material and viscoelastic damper, discusses the design method of the dissipate energy and reduce seismic responses structure system.Lastly,some examples are presented about frame, frame-central support,EBSF with VED about different lengths of active beam link and different types of brace.Then those examples are caculated by finite element analytical software SAP2000.Finally,after analyzing the results of calculating,this thesis presents some conclusions which are applicable to structural designs.更多还原