建筑钢结构进展2024，Vol.26Issue(2)：54-63,10.DOI:10.13969/j.cnki.cn31-1893.2024.02.006
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
摘要
Abstract
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-degree-of-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Key words
energy dissipation structure/viscous damper/additional damping ratio/time-history analysis method/shaking table test分类
建筑与水利引用本文复制引用
兰香,张兴仙,潘文,余文正,张龙飞,吴克川..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[J].建筑钢结构进展,2024,26(2):54-63,10.基金项目
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) （202101AU070059）
