【摘要】 应用大型有限元分析软件ANSYS,对钢筋混凝土异形柱框架结构进行动力特性和弹塑性时程分析。得到钢筋混凝土异形柱框架结构的自振频率、振型特点,以及异形柱框架结构在8度抗震设防情况下顶层水平位移时程曲线、顶层加速度时程曲线、水平位移沿楼层高度分布曲线及层间位移角沿楼层高度变化曲线。研究了底层层高和结构高度等对异形柱框架结构地震反应的影响。更多还原

【Abstract】 The dynamic characteristics and elastic-plastic time-dependent analysis of reinforced concrete frames with irregular section′s columns are discussed by using the large general structural analysis software ANSYS.The free-vibration frequencies and characteristics of the structure are obtained.Under the condition of seismic fortification intensity 8,Some seismic response property curves are drawn.For example,time-dependent curve of roof horizontal displacement,time-dependent curve of roof horizontal acceleration,distribution curve of horizontal displacement varying with building height,and distribution curve of relative story deflection angle varying with building height.The affections of bottom story height and building height are discussed.更多还原