非线性粘滞阻尼器减震结构实用设计方法

发布时间：2018-06-27 23:56

本文选题：非线性粘滞阻尼器 + 减震结构　；参考：《昆明理工大学》2014年硕士论文

【摘要】：近年来,随着消能减震技术的应用越来越广泛,非线性粘滞阻尼器已被广泛应用于工程抗震中。许多国家都相继制定出台了相应的消能减震结构设计、施工规范和规程,我国现行《建筑抗震设计规范》(GB50011-2010)中也增加了消能减震设计的规定,在吸收国内外比较成熟的研究成果基础上,列出了一些关于消能减震设计的原则性条文,但很难为一般的工程师掌握并运用于实际的工程实践中。粘滞阻尼器由于带有很强的非线性特性,这使得非线性粘滞阻尼器减震结构的分析和设计变得更为复杂和困难。本文就非线性粘滞阻尼器减震结构,进行了系统的研究,并结合通用有限元软件SAP2000,提出了一种实用的设计方法,以使非线性粘滞阻尼器更好的应用于工程实际中。首先,本文介绍了非线性粘滞阻尼器的构造及力学模型,并从粘滞阻尼器附加阻尼比的公式出发,详细介绍了阻尼系数的设计理论和分配理论。然后,本文第三章对通用有限元软件SAP2000进行了系统的介绍,将其对减震结构的模拟、粘滞阻尼器的模拟以及减震结构计算方法,做了详细的说明。证明目前采用SAP2000软件可以完成对减震结构的设计分析。在此基础上,本文提出了一种简便、实用、可操作性强的减震结构设计方法。该方法从结构的初步设计、阻尼器的设计、减震结构的分析计算到附加阻尼比的复核,形成了一套完整的非线性粘滞阻尼器减震结构设计流程,对一般的工程设计人员可很快理解并入手操作。本文最后得出了一些对工程有指导意义的结论,补充和完善了非线性粘滞阻尼器减震结构的设计方法,对工程实际具有一定意义。
[Abstract]:In recent years, nonlinear viscous dampers have been widely used in engineering aseismic with the application of energy dissipation and damping technology more and more widely. Many countries have formulated the corresponding design, construction code and rules of energy dissipation structure, and the current Code for Seismic Design of buildings (GB50011-2010) has also added the provisions of energy dissipation design. On the basis of absorbing the mature research results at home and abroad, this paper lists some principles of energy dissipation design, but it is difficult for general engineers to master and apply them in practical engineering practice. Due to the strong nonlinear characteristics of viscous dampers, the analysis and design of nonlinear viscous dampers become more complex and difficult. In this paper, the nonlinear viscous dampers are systematically studied, and a practical design method is put forward in combination with the general finite element software SAP2000, so that the nonlinear viscous dampers can be better applied in engineering practice. Firstly, the structure and mechanical model of nonlinear viscous dampers are introduced, and the design theory and distribution theory of damping coefficient are introduced in detail from the formula of additional damping ratio of viscous dampers. Then, in the third chapter, the general finite element software SAP2000 is introduced in detail. The simulation of the damping structure, the simulation of the viscous damper and the calculation method of the structure are described in detail. It is proved that the design and analysis of shock absorption structure can be completed by using SAP 2000 software. On this basis, a simple, practical and operable design method of shock absorber structure is presented in this paper. From the preliminary design of the structure, the design of the damper, the analysis and calculation of the shock absorption structure to the check of the additional damping ratio, a set of complete design flow of the nonlinear viscous damper structure is formed. General engineering designers can quickly understand and start to operate. Finally, some conclusions of guiding significance are obtained, which complement and perfect the design method of nonlinear viscous dampers, which is of certain significance to engineering practice.
【学位授予单位】：昆明理工大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TU352.1

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