【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.更多还原

【Abstract】 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 damping ratio and peak ground shaking,but strong motion duration effect is relatively small. The storey distribution regularity of hysteretic energy is ladder-shaped distribution. The hysteretic energy dissipated by columns increases but the damping energy decreases with the increases of structure damping ratio,peak ground shaking and predominant period; beams and plates are contrary to columns. Ground motion duration has little effect on energy distribution.更多还原