复杂高层塔式结构建筑外型独特，结构灵活多变，适应当代城市发展需要，近年来受到工程界的格外青睐。虽有学者对塔式结构进行了理论与设计方面的研究，但其地震反应特点有待深入研究。合十舍利塔采用东西两组对称的折线型筒体，是典型的复杂高层塔式结构。本文利用SAP2000对其地震反应特性进行分析研究，提出高层塔式结构抗震设计建议，具有重要的理论意义和实际工程应用价值。 本文按结构的实际尺寸建立整体有限元计算模型，就钢材和混凝土两种材料分别选取本构模型。通过对塔式结构的模态分析，表明低阶振型表现为整体振动，高阶振型中出现部分子结构沿不同方式振动，建议振型组合数宜取塔楼个数9倍以上，避免高阶振型丢失，以全面反映结构的动力特性；结构布置规则时周期值可采用经验公式估算，当结构体型布置不规则时周期值须经计算得出。 线弹性阶段采用振型分解反应谱法和动力时程分析法进行地震反应分析，两种方法所得曲线大致趋势相同，但反应谱法计算结果偏大，即反应谱法可反映模型结构的最大内力值。合十舍利塔最大位移发生在手腕弯折处和顶部连接体，最大层间位移角发生在弯折突变处，表明双塔连体部位和截面突变处是结构的薄弱部位。当场地类别Ⅱ~Ⅳ类由坚硬向软弱变化时，结构的地震作用、位移及层间位移角均有明显增大趋势，得出软弱场地土对地震动有明显的放大作用，使得地震作用效应更显著。 弹塑性阶段采用push-over方法分析了结构构件经弹性→开裂→屈服→倒塌全过程的塑性铰状态及分布、薄弱部位及破坏模式，得到结构出现塑性铰的先后顺序依次为：手腕弯折处→顶部连接体→手心手背下部→底部外围框架柱→4个角筒→手心手背上部.44m手腕弯折处最先达到极限状态。推覆分析得到结构基底剪力-顶点位移关系曲线即能力谱曲线,能从整体上体现结构的抗震承载力,经用能力谱法对结构抗震能力进行评估，不同延性系数的需求谱曲线均能穿越能力谱曲线，表明结构具有良好的抗震性能。

High-rise tower complex structure，with unique architectural appearance, It is flexible to arrange the structures and it meets the needs of contemporary urban development, particularly popular in recent years by the engineering sector. Although theories and design methods of high-rise tower structure were studied, the seismic response characteristics need further investigation. the heshi pagoda of Famen TemPle which used two broken cylinders as main component,is a typical high-rise tower complex structure.This paper research seismic response of tower structures by SAP2000, and make recommendations on seismic design of high-rise tower structure,which has important theoretical and practical engineering applications. the 3-D phistieated finite element model of overall structure were established, whose calculation models are set up according to the actual size of the strueture. two kinds of materials on the steel and concrete constitutive model were selected. Tower structure by modal analysis, show that the low performance of the overall vibration mode, higher modes appear in some sub-structure along the vibration in different ways, the proposed combination of the number of modes should take more than 9 times of the number of towers to avoid high modes loss, reflecting the dynamic characteristics; When the structural arrangement of regular shape can be estimated the period value by empirical formula, when the structural arrangement of irregular shape shall be calculated the period value. In the linear range, the spectral analysis and dynamic time history analysis of the structure has been done under frequently earthquake. the results of two methods indicate the same general trend, the results of response spectrum methods were broken which may set out to reflects the maximal value of numerieal model.the maximal displacement of the heshi pagoda of Famen Temple occurs at the bend round and roof tops ,the inter-story displacement maximal angle occurs at bending mutation,there are two weakest parts at the bend round and roof tops along Twin Towers . When theⅡ~Ⅳcategory class change from hard to weakness, there is a distinct increase trend of tower structure with seismic force, displacement and inter-story displacement angle under earthquake, it indicates more obvious enlargement in weakness field, which reflects more significant effect of the seismic function. In the elastic-plastic range，tower structure would be studied with push-over static analytical method. the plastic hinge distribution, weakest parts and failure modes of all structural members from elastic parts→cracking parts→yield parts→destruction in the whole process, the sequence of plastic hinges were:wrist bending department→ the roof tops→palm and back of the lower parts→the bottom of the perimeter columns→four corner cylinders→palm and upper back of the hand.The first limits state department of twin towers was 44m wrist bending structure. the seismic capacity of this structure would be evaluated with the capacity spectrum method.Structural demand spectrum curve of different ductility coefficient can cross the capacity spectrum curves, indicating that the structure has good seismic capacity.