【摘要】 在对跨度大于24m的排架结构进行抗震设计时,引入屋架竖向地震作用的影响,对8度、9度区分别用现行规范规定的方法和振型分解法计算大跨度屋架的竖向地震作用,进而计算屋架在竖向地震作用下的支座反力值,将支座反力值施加在排架柱顶,使之参与排架柱的截面抗震验算,乘以不同的分项系数参与内力组合,对比计算结果得出在进行排架柱抗震设计时应该考虑竖向地震作用影响的结论。更多还原

【Abstract】 In this paper,the vertical seismic effort of the long-span roof truss is introduced in the seismic design of the bent frame structure.The method can be used for calculating the vertical seismic effort of truss using both response spectrum method and seismic design standard method in the regions of 8 and 9 intensity,and then the support reaction force of roof truss under vertical seismic effort could be calculated,applying the support force on the top of the frame column and calculating the earthquake-resistance of the column.The corresponding conclusion on the basis of the data analysis is that it should take vertical seismic influence into account in the seismic design of bent fram column.更多还原