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为研究连体与塔楼的连接方式对三塔楼连体高层建筑结构动力性能的影响机理,并更好地解决实际工程中遇到的问题,利用模态分析研究三塔楼连体高层结构的自身动力特性;利用时程分析法,输入两条典型地震波和一条人工地震波,计算不同的连体结构模型的地震响应,总结分析连接方式对塔楼动力性能的影响规律。结果表明,连体抗侧移刚度不变,连体与塔楼的连接方式从刚接到铰接变化时,结构的自振周期随之减小;地震作用下,与刚接时相比,采用铰接后单连体结构连体位置以下楼层位移减小,连体以上楼层位移增大,但其变化不显著;随着连体数量增加,连接方式对三塔楼连体高层建筑抗震性能的影响增大。
In order to study the influence mechanism of the connection between Siamese and tower on the dynamic performance of Siamese tall buildings and to better solve the problems encountered in practical engineering, the modal analysis is used to study the self-motivation of Siamese tall buildings By using time-history analysis method, two typical seismic waves and one artificial seismic wave are input to calculate the seismic responses of different Siamese models, and the influences of connection modes on the dynamic performance of the tower are summarized and analyzed. The results show that the rigidity of Siamese with side-to-side transfer is constant, and the connection mode between Siamese and tower is decreased from the moment when the connection is changed to the hinge. The displacement of the floor below the single-piece structure of the single-unit structure decreases and the displacement of the floor above the single-piece structure increases, but the change is insignificant. With the increase of the number of the double-unit structure, the impact of the connection mode on the seismic performance of the triple- .