黏滞阻尼器耗能减振工程应用设计方法研究

Research on practical design method using liquid viscous damper passive energy dissipation in buildings

本中文阐述了黏滞阻尼器的构造、力学模型以及其耗能减振的基本原理,并基于国际结构振动控制公共平台Benchmark模型,采用ANSYS和SAP2000有限元软件对其进行无控和有控地震反应分析,研究了黏滞阻尼器自身参数、设置形式、速度指、阻尼系数、位置和数量等因素对其控制效果的影响规律。结合国内外规范,给出LVD安装形式、各种参数、位置和数量的简化设计方法。利用本文提出的方法来进行LVD被动耗能减振分析和设计是方便可行的。新的抗震规范容许通过设置LVD耗能减振的方法适当降低主体结构的抗震构造措施,因此,今后阻尼器的应用是个必然的趋势。

This paper describes the conformation,the mechanical model and the passive energy dissipation basic principle of liquid viscous dampers.Benchmark common model is used as an analysis model,and the seismic response analysis with or without control is carried out using FEA with ANSYS and SAP2000.The influence of mass,stiffness and damping,configuration and brace,velocity exponent and damping coefficient,number and location of LVD are researched.The practical design method of LVD is summarized combining with present seismic code home and abroad.It is demonstrated from the simulation results that LVD can reduce the structure response effectively,and that aforementioned method is convenient and feasible.The new seismic design code is allowed to use passive energy dissipation method to reduce the seismic responses of main structure,and the application of LVD in structure is an inevitable trend in the future.