【摘要】 该文以一个上部为多曲面异型网架、下部为部分框架结构的大跨空间结构为例,选用ANSYS有限元软件,选取下部支承结构的各项指标,对有无考虑桩-土作用的两种模型各指标的结果进行对比分析,引入了折减系数,为今后对考虑桩-土作用后的结构模型在地震作用下的下部支承结构指标是否应该进行折减提供参考。更多还原

【Abstract】 Exampled by a long-span space structure,whose upper is a multi curved surface shaped truss,and lower a frame structure,with ANSYS finite element software,and based on indexes of the supporting structure,the indexes of the models with/without pile-soil interaction are compared,and the reduction coefficients are introduced,offering some references for such a large span structures considering the pile-soil interaction under the seismic action.更多还原