【摘要】 框架结构具有较好的抗震性能和灵活的使用空间 ,但柱的截面较大 ,柱角凸出 ,影响美观和使用。为此 ,推荐异形柱框架结构 ,并分析其抗震性能。通过建立两种框架结构模型 ,用振型分解法和动力时程法求得两种结构在水平地震作用下的弹性地震反应。结果表明 ,异形柱框架结构的抗震性能比矩形柱框架结构有明显的提高。并指出 ,异形柱框架结构抗震性能提高的主要原因是建筑物总体质量较轻更多还原

【Abstract】 The normal frame structure excels in its aseismic performance and flexibility,but its utilization as well as its exterior is affected by fairly large section of columns and prominence on the wall.The paper carries forward the frame constructed by special type pillars and analyses its structural aseismic performance.On the basis of two mechanic models of deferent frame structures,it has been proved that the aseismic performance of the frame constructed by special type pillars is obviously better than that of normal frame structure by use of the methods of vibration decomposition and dynamic time distance.Meanwhile,the paper shows that the improvement of aseismic performance of the frame with special type pillars is mainly due to the lower mass of general building.更多还原