【摘要】 法门寺合十舍利塔高147m,外形呈双手合十造型,为复杂双塔连体超限的钢与混凝土混合结构。应用大型通用有限元软件,建立与实际情况相符的结构模型,对该结构进行动力特性分析。针对结构的复杂性,利用时程分析法对结构进行弹性分析。考虑这些影响因素,系统分析地震波输入维数、地震波类型及阻尼比对该结构时程分析的影响。根据分析结果提出对合十舍利塔等复杂结构进行抗震分析时,应考虑三维地震波输入。分析表明,该结构在7度多遇烈度地震作用下,有较小的位移,能够满足我国现行抗震规范的抗震设计标准。从整体上对结构的抗震性能做出评估,并得出具体的结论。更多还原

【Abstract】 The heshi dagoba in Famen temple,147m high,the exterior of the dagoba likes two palms together,and the building is a kind of connected twin-tower withcomplex high-rising steel-concrete hybrid structure.Structure model similar to practice was established using commercial finite element software.The dynamic characteristics of the structure were analyzed.For the complexity of the structure,using time-history analysis to analyze the elasticity of the structure.The result of time-history analysis may be influenced by several parameters,so the influence of earthquake wave dimension,the style and damping ratio were analyzed.The analysis results provide some suggestions: For the seismic analysis,three-dimensional seismic wave inputted should be considered.Under 7 degree seismic fortification intensity,displacement of the structure is smaller,which meet the seismic design standards of Chinese current building code.Some specific conclusions are gained from the overall seismic performance of the structure.更多还原