摘要
基于阻尼器逐层布置方法,建立多自由度消能减震结构地震响应与单自由度反应谱的等效关系,推导出阻尼器总出力和非消能结构基底剪力的比值与附加阻尼比的相关公式,确定阻尼器经济配置数量的计算方法。通过对4个不同自振周期的框架结构的验算结果表明,本文提出的多自由度向单自由度体系的等效关系吻合,采用规范反应谱按该方法计算得到的阻尼器经济配置数量基本符合要求。
Based on the SSSA method, a relationship between SDOF response spectrum and MDOF earthquake response is raised up and the formula for additional damping ratio and the ratio of total damping force to the unconctrolled structure base shear is detived. By the formula, a method is used to calculate the economic magnitude of viscous damper. The calculation results of four frame structures indicate that the proposed relationship between SDOF and MODF works well and the economic magnitude of viscous damper calculated by the formula using the response spectrum in code totally satisfies the use requirements.
出处
《建筑科学》
北大核心
2013年第9期39-43,共5页
Building Science
基金
"十二五"国家科技支撑计划课题(2012BAJ07B02)
关键词
消能减震
粘滞阻尼器
经济数量
energy dissipation
viscous damper
economic magnitude
