建筑结构学报2024，Vol.45Issue(8)：192-204,13.DOI:10.14006/j.jzjgxb.2023.0198
中间柱式黏滞阻尼器同跨内布置位置对减震效率的影响研究
Research on influence of arrangement position of middle column viscous dampers in same span on damping efficiency
摘要
Abstract
In order to investigate the influence of the placement of middle column viscous dampers in frame structures at different locations within the same span on the damping efficiency of structures.Through theoretical analysis,the displacement of the damper was decomposed into three aspects:floor shear deformation,beam-column joint rotational displacement,and deformation of the upper column or lower column supporting the damper.The inter-story drift utilization ratio of dampers at different placement positions within the same span was analyzed.Shaking table tests of single-story and three-story steel frame structures were conducted,in order to validate the correctness of the theoretical analysis.Applying research findings to engineering instances,the impact of layout positions on damping efficiency was further analyzed.Experimental research results indicate that the damping efficiency is closely related to the placement position of the damper,and when the damper is located at 1/2 of the beam span compared to 1/6 of the beam span,the inter-story drift utilization ratio increases by 15％-25％,the additional damping ratio increases by 10％-30％,the top displacement or floor drift decreases by 5％-15％,and the base shear or floor shear decreases by 5％-15％.关键词
减震结构/黏滞阻尼器/布置位置/减震效率/振动台试验/层间位移利用率/附加阻尼比Key words
damping structure/viscous damper/arrangement location/damping efficiency/shaking table test/inter-story displacement utilization rate/additional damping ratio分类
建筑与水利引用本文复制引用
兰香,潘文,孙柏锋,白羽,苏何先..中间柱式黏滞阻尼器同跨内布置位置对减震效率的影响研究[J].建筑结构学报,2024,45(8):192-204,13.基金项目
云南省科技厅基础研究专项青年项目(202101AU070059),昆明学院人才引进项目(XJ20210006),国家自然科学基金项目(51368027),中国-巴基斯坦重大基础设施智慧防灾"一带一路"联合实验室开放课题(2022CPBRJL-10). （202101AU070059）
