黏滞阻尼器在既有框架结构抗震加固中的应用研究

发布时间：2018-04-13 08:37

本文选题：黏滞阻尼器 + 消能减震　；参考：《安徽理工大学》2017年硕士论文

【摘要】：消能减震技术是一种结构控制技术,是通过在结构的适当位置安装消能减振装置,利用这些装置的耗能来减小结构在强震下的振动反应。黏滞阻尼器就是一种性能优良的消能减振装置。针对既有框架结构抗震加固中采用黏滞阻尼器的消能减震技术进行了分析和研究,主要工作如下:1)总结相关的力学模型及其耗能原理,尝试概括并归纳在消能减震这一理念中的设计方法,归纳其具体步骤,探索适用的详细准则以及相应的计算分析方法。并且总结概括了黏滞阻尼器在结构中布置时的优化理念,论述了其相关的优化设计方法以及控制函数的选择。2)结合既有工程结构模型,采取层间位移为控制函数,利用ETABS和MIDAS有限元分析软件,多次试算优化布置阻尼器。3)通过比较层间剪力和位移角,计算并且分析加设黏滞阻尼器和无黏滞阻尼器的无控结构的抗震性能,体现黏滞阻尼器较好的抗震能力。以我国发行的《建筑抗震设计规范》为对比依据,宗旨便是在对消能减震设计这一理念进行阐述的同时,对这一领域中的理论研究进行概括总结,并通过既有框架结构实例的应用研究,表明黏滞阻尼器良好的减震性能,以此推进进一步的推广和发展。
[Abstract]:The energy dissipation technology is a kind of structure control technology, which can reduce the vibration response of the structure under the strong earthquake by installing the energy dissipation device in the proper position of the structure and utilizing the energy dissipation of these devices to reduce the vibration response of the structure under the strong earthquake.Viscous damper is an excellent energy dissipation device.This paper analyzes and studies the energy dissipation and seismic absorption technology of existing frame structures using viscous dampers. The main work is as follows: 1) summarize the relevant mechanical models and their energy dissipation principles.This paper attempts to summarize and sum up the design method in the idea of energy dissipation and seismic absorption, summarizes its concrete steps, and explores the applicable detailed criteria and corresponding calculation and analysis methods.The optimization idea of viscous damper in the structure is summarized, and the related optimization design method and control function selection. 2) combined with the existing engineering structure model, the interstory displacement is taken as the control function.By using ETABS and MIDAS finite element analysis software, the aseismic performance of uncontrolled structures with viscous dampers and non-viscous dampers is calculated and analyzed by comparing the shear forces and displacement angles between layers.The viscous dampers have better seismic performance.Based on the "Code for aseismic Design of buildings" issued in China, the purpose is to summarize the theoretical research in this field while expounding the concept of energy dissipation design.Through the application research of the existing frame structure, it is shown that the viscous damper has good vibration absorption performance, which can promote the further promotion and development.
【学位授予单位】：安徽理工大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TU352.1

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