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在对双塔连体高层建筑结构进行结构分析时，对连体的处理通常有二种简化方法：一是不考虑连体的作用而把两塔楼分立开来；二是把两塔楼楼层和连体楼层一起当作一刚性楼层。前者不能考虑到连体对结构的影响；后者显然又过高估计了连体的作用，在连体刚度不是很大时会有很大的误差。本文采用较为严密的计算模式，对主结构采用凝聚模型，把连体看作一弹性梁，可以弥补这两种简便算法的不足。应用时程分析法，就对称和非对称双塔连体结构，分析了连体刚度变化对结构动力特性和地震响应的影响，并探讨了上述两种简便算法的适用条件。
When analyzing the structure of twin tower high-rise buildings, there are usually two simplified methods to deal with the two-tower structure: one is to separate the two towers without considering the function of the bridge; the other is to connect the two towers together Body floor together as a rigid floor. The former can not take into account the effect of Siamese on the structure; the latter apparently overestimated the role of Siamese, Siamese stiffness is not very large, there will be a big error. In this paper, a more rigorous calculation mode is adopted, the cohesive model is adopted for the main structure, and the conjoined body is considered as a flexible beam, which can make up for the shortcomings of these two simple algorithms. Using the time history analysis method, the influence of the change of the joint stiffness on the dynamic characteristics and the seismic response of the structure is analyzed in terms of the symmetrical and asymmetrical twin towers. The applicable conditions of the above two kinds of simple algorithms are also discussed.