摘要
将能量原理运用到钢-混凝土组合框架结构地震反应分析中,利用有限元软件模拟组合框架在地震荷载作用下的动力响应,分析结构阻尼比、地震动峰值和持时等因素对滞回耗能分配规律的影响,探讨组合结构总输入能量及层间和柱、梁板间能量分配规律.研究表明总输入能受阻尼比和地震动频谱特性影响较大,地震动峰值影响较小;滞回耗能在结构层间分布为底层大顶层小的梯形分布;柱耗散的滞回能随阻尼比、地震动峰值或卓越周期增加而增加,阻尼耗能随之减少,梁耗散与柱相反;地震动持时对柱和梁的耗能分配影响很小.
The energy principle was applied into the analyses of seismic response of one steel-concrete composite structure,and the dynamic response of the structure under earthquake load was analyzed by finite element software.The distribution regularity of hysteretic energy between columns and beams,plates,was investigated which took into account the structure damping ratio,peak ground shaking,strong motion duration and other influence factors. The results show that,the input energy is greatly affected by the dampin...
出处
《动力学与控制学报》
2008年第4期353-359,共7页
Journal of Dynamics and Control
基金
国家自然科学基金重点资助项目(50438020)
湖南省杰出青年基金资助项目(07JJ1009)~~
关键词
钢-混凝土组合结构
阻尼耗能
滞回耗能
总能量分配
层间分配
构件间分配
steel-concrete composite structure
damping energy
hysteretic energy
input energy distribution
storey distribution
components distribution
