粘滞阻尼器论文：粘滞阻尼器在结构抗震中的应用与研究.doc

粘滞阻尼器论文：粘滞阻尼器在结构抗震中的应用与研究【中文摘要】传统的抗震结构体系是通过增强结构本身的性能来抗御地震作用的,消能减震结构体系是通过给结构附设消能减震装置(如粘滞阻尼器)来耗散地震能量达到抗震的。粘滞阻尼器具有构造简单,材料经济,环境影响小,便于施工,减震效果明显、其对原结构干扰破坏小等优点,是一种很好的减震装置,粘滞阻尼器目前广泛应用于土木、机械等领域,并且取得了良好的经济效果。本文介绍了几种常用的粘滞阻尼器,详细讨论了消能减震结构的设计计算方法,减震结构的分析方法,粘滞阻尼器的减震原理,分析粘滞阻尼器在SAP2000以及ETABS中的实现原理。本文选择了汶川地震波来(8号波谱)对结构进行动力荷载计算。由于采用不同的分析软件计算出的粘滞阻尼器对结构减震的影响不同,本文建立了两种结构模型(钢结构和混凝土框架结构),采用汶川地震波(8号波谱)对结构施加地震荷载,按照一定的方案,分别在每种结构中设置一定数量的粘滞阻尼器,采用ETABS和SAP2000两种结构分析软件来对结构进行动力分析,分析结构中设置粘滞阻尼器对结构在地震作用过程中的影响,通过比较粘滞阻尼器设置前后结构在地震作用下结构楼层的最大位移以及最大层间位移角的改变量,验证了附设粘滞阻尼器对于提高结构的抗震性能的优越性。并且采用两种结构分析软件来分析相同的模型,找出了不同软件分析结果的差异,由ETABS和SAP2000计算得到的粘滞阻尼器对结构的减震效果基本相同,前者较后者大3%到5%左右。【英文摘要】The seismic structure of the traditional system always by enhanced own performance to resist earthquakes.The structure of energy dissipation system is attached to the structure by energy dissipation devices (such as viscous dampers) to dissipate seismic energy to seismic purposes.Viscous dampers structure has many advantages such as simple structure, material economy, environmental impact, ease of construction, the damping effect is obvious, and is small disturbance to the original structure. Is a good shock absorber. The current extensive use of viscous dampers in civil, mechanical and other fields and achieved good economic results.This article describes several common damper, and the energy dissipation structure oft-he design method is discussed in detail, vibration analysis of the structure, principle of vise-ous dampers, analysis of viscous dampers in SAP2000 and ETABS the realization principle. This paper chooses NO.8 spectrum wenchuan earthquake wave calculation of dynamic loads on the structure.As a result of different analysis software to calculate the viscous dampers on the structu-al damping of the impact of different models,two structures are established (steel and concre-te frame structure), and make used of NO.8 spectrum Wenchuan earthquake seismic loads i-mposed on the structure, according to certain programs were set in each structure, a certain number of viscous dampers, used ETABS and SAP2000 structural analysis software to analy-sis the two struct ures, analysis of the structure of viscous dampers on the seismic structure of the process, by comparing the structure use viscous damper settings before and after under earthquake storey for the maximum displacement and maximum drift angle changes in the a-mount of viscous damper attached to verify the structure for improving the seismic preform-ance advantages. Use two kinds of structural analysis software to analyze the same model, a-nd find out the difference results of damper damping effect on the structure which calculate-d from ETABS and SAP2000software is basically the same, the former is larger than 3% to 5%.【关键词】粘滞阻尼器 消能减震 时程分析 动力荷载【英文关键词】viscous damper energy dissipation-seismic reduction time-history analysis dynamic load【目录】粘滞阻尼器在结构抗震中的应用与研究摘要6-7Abstract7第一章 绪论9-141.1 引言91.2 粘滞阻尼器的应用9-101.3 粘滞阻尼器的作用原理101.4 结构减震的发展现状10-121.4.1 阻尼器的研制10-111.4.2 减震结构的试验研究111.4.3 减震结构的建造11-121.5 消能减震结构面临的问题及发展趋势121.6 本文的主要目的及内容12-14第二章 粘滞阻尼器的种类以及减震原理14-202.1 粘滞阻尼器的种类14-162.2 加入粘滞流体阻尼器结构的分析方法16-172.3 粘滞阻尼减震的基本原理17-20第三章 粘滞阻尼器在钢结构中的分析20-35