计算力学学报2016，Vol.33Issue(3)：287-293,7.DOI:10.7511/jslx201603002
阻尼耗能减振框架结构地震作用振动方程求解及地震反应分析
Calculation of vibration equation and analysis of seismic response for damping energy dissipation f rame structure
摘要
Abstract
T he calculation of vibration equation and analysis of seismic response for damping energy dissi‐pation frame structure are studied .In this vibration equation ,the damping matrix is not orthogonal to vibration mode .The direct integration of state equation method was adopted to solve the vibration equation of damping energy dissipation frame structure ,and compared with the forced decoupling method .The results show that the forced decoupling method has smaller deviation on the first order vibration response from that of the direct integration of state equation method ,but larger deviation on higher order vibration response .Furthermore ,the forced decoupling method overestimate the damping effect of the dampers .Then ,the seismic response of frame structures with viscous damper have been analyzed according to the direct integration of state equation method ,and the influence of damper position on seismic response is investigated .T he results indicate the damping effect may be obvious on the storey with dampers ;but much different on the storey without dampers ,sometimes the storey drifts even increase .Therefore ,dampers in structure should be designed reasonably .关键词
耗能/振动方程/强制解耦/阻尼器/振型分解Key words
energy dissipation/vibration equation/forced decoupling/damper/mode decomposition分类
建筑与水利引用本文复制引用
张敏,蒋洪波,李阳..阻尼耗能减振框架结构地震作用振动方程求解及地震反应分析[J].计算力学学报,2016,33(3):287-293,7.基金项目
国家自然科学基金（51368007）；广西高校科学技术研究重点项目（2013ZD047）；广西自然科学基金（2014GXNSFAA118327）资助项目． （）
