基于时程分析方法的黏滞阻尼减震结构附加阻尼比计算研究  

The Calculation of Additional Damping Ratio of Viscous Damping Seismic Structure Based on Time-History Analysis Method

作　　者：兰香 张兴仙 潘文[4] 余文正 张龙飞 吴克川 LAN Xiang;ZHANG Xingxian;PAN Wen;YU Wenzheng;ZHANG Longfei;WU Kechuan(College of Architecture and Civil Engineering,Kunming University,Kunming 650214,China;Institute of Engineering Earthquake Resistance and Disaster Reduction,Kunming University,Kunming 650214,China;College of Urban Construction,Yunnan Open University&Yunnan National Defense Industry Vocational and Technical College,Kunming 650032,China;Faculty of Civil Engineering and Mechanics,Kunming University of Science and Technology,Kunming 650051,China)

机构地区：[1]昆明学院建筑工程学院,昆明650214 [2]昆明学院工程抗震减灾研究所,昆明650214 [3]云南开放大学&云南国防工业职业技术学院城市建设学院,昆明650032 [4]昆明理工大学建筑工程学院,昆明650051

出　　处：《建筑钢结构进展》2024年第2期54-63,共10页Progress in Steel Building Structures

基　　金：云南省科技厅基础研究专项青年项目(202101AU070059);云南省教育厅科学研究基金(2022J0596);昆明学院人才引进项目(XJ20210006)。

摘　　要：附设黏滞阻尼器后结构的附加阻尼比是进行减震结构设计的关键。基于目前计算附加阻尼比时应用得十分广泛的时程分析方法进行研究,首先从基本理论出发,分析基于特征向量法的快速非线性分析(FNA)方法、Ritz向量法的FNA方法、直接积分方法以及与3种计算方法对应的能量比法在附加阻尼比计算时所面临的主要问题及重要参数设置;然后通过一单自由度体系的振动台试验测试结果与各种计算方法的数值模拟结果进行对比分析,得到较为适合的附加阻尼比计算方法;最后将研究成果应用于实际工程结构,进一步验证所推荐方法和参数设置的正确合理性。研究旨在为今后广大一线减震设计工程师计算较为真实的附加阻尼比提供重要参考。The key to the design of the energy dissipation structure is to calculate the additional damping ratio of the viscous damping structure.This paper investigated the computation of the additional damping ratio based on the widely used time-history analysis method.First,starting from the basic theory,the main problems and important parameter settings were analyzed with the calculation of additional damping ratio by the fast nonlinear analysis(FNA)method based on the eigenvector method,the FNA method based on the Ritz vector method,the direct integration method and the energy ratio method corresponding to the three calculation methods.Then the test results of a single-degreeof-freedom system were compared with the numerical simulation results of various calculation methods,to obtain more suitable methods for calculating the additional damping ratio.Finally,the research results were applied to actual engineering structure to further verify the correctness and rationality of the recommended method and parameter settings in this paper.The purpose of the study is to provide important guidance for many first-line damping design engineers to calculate the more realistic additional damping ratio in the future.

关 键 词：消能减震结构 黏滞阻尼器 附加阻尼比 时程分析方法 振动台试验 

分 类 号：TU352.1[建筑科学—结构工程] P315.8[天文地球—地震学]