首页|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

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

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为了研究中间柱式黏滞阻尼器在框架结构同一跨内不同位置布置时对减震结构减震效率的影响,通过理论分析,将阻尼器位移分解为楼层剪切变形、梁柱节点转动位移和支撑阻尼器上柱或下柱自身变形三方面,并对同跨内不同布置位置下阻尼器的层间位移利用率进行分析;通过对单层和三层钢框架开展振动台试验,验证理论分析的正确性;将研究成果应用于工程实例中,进一步分析布置位置对减震效率的影响.研究结果表明:减震效率与阻尼器布置位置关系密切,与阻尼器位于梁跨度的1/6相比,位于梁跨度的1/2时,层间位移利用率增大15％～25％,附加阻尼比增大10％～30％,顶点位移或楼层位移减小5％～15％,基底剪力或楼层剪力减小5％～15％.
Research on influence of arrangement position of middle column viscous dampers in same span on damping efficiency
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％.

damping structureviscous damperarrangement locationdamping efficiencyshaking table testinter-story displacement utilization rateadditional damping ratio

兰香、潘文、孙柏锋、白羽、苏何先

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昆明学院建筑工程学院,云南昆明 650214

昆明学院工程抗震减灾研究所,云南昆明 650214

昆明理工大学土木工程系,云南昆明 650500

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,江苏南京 211189

云南省设计院集团有限公司,云南昆明 650238

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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

云南省科技厅基础研究专项青年项目昆明学院人才引进项目国家自然科学基金项目中国-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

202101AU070059XJ20210006513680272022CPBRJL-10

2024

10.14006/j.jzjgxb.2023.0198

建筑结构学报
中国建筑学会

建筑结构学报

CSTPCD北大核心
影响因子：1.546
ISSN：1000-6869
年,卷(期)：2024.45(8)
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