某不规则框架结构附加阻尼比计算研究  

Calculation and Research on Additional Damping Ratio of an Irregular Frame Structure

作　　者：胡建炜 向竹林 姚激[1] 黄坤[1] 王惠民[1] HU Jianwei;XIANG Zhuin;YAO Ji;HUANG Kun;WANG Huimin(Faculty of Civil Engineering and Mechanics,Kunming University of Science and Technology,Kunming,Yunnan 650500,China;Yunnan Huibang Design(Institute)Co.,Ltd.,Lincang,Yunnan 677000,China)

机构地区：[1]昆明理工大学建筑工程学院,云南昆明650500 [2]云南汇邦设计(院)有限公司,云南临沧677000

出　　处：《施工技术（中英文）》2023年第15期9-15,共7页Construction Technology

基　　金：国家自然科学基金(11562009)。

摘　　要：为了研究不规则框架结构附加黏滞阻尼器的附加阻尼比计算,在当前规范基础上对已有计算方法进行改进,得出了更切合不规则框架结构的附加阻尼比计算方式。为了验证改进计算方法的可行性,基于云南省某不规则框架结构进行减震计算分析。分析结果表明:在附加黏滞阻尼器后,采用单向算法及混合算法计算得到的附加阻尼比均满足本结构预期附加阻尼比要求,且在罕遇地震作用下,阻尼器耗能占地震输入总能量的比值满足20%的规范要求。To study the calculation method of the additional damping ratio of additional viscous dampers with irregular frame structures,the existing calculation method is improved on the basis of the current code,and the calculation method of the additional damping ratio,which is more suitable for irregular frame structures,is derived.To verify the feasibility of the improved calculation method,the seismic reduction calculation analysis was carried out based on an irregular frame structure in Yunnan Province.The analysis results show that after adding viscous dampers,the additional damping ratios,calculated by the unidirectional algorithm and the hybrid algorithm,both meet the expected additional damping ratio requirements of the structure;moreover,under the action of rare earthquakes,the ratio of damper energy dissipation to the total earthquake input energy meets the specification requirements of 20%.

关 键 词：框架结构 黏滞阻尼器 附加阻尼比 减震 设计 

分 类 号：TU352[建筑科学—结构工程]