中文摘要：

基于一座天空桥连接的成双塔的结构的一个简化 3-DOF 模型，频率反应功能，排水量力量光谱密度(PSD ) 功能，和平均时间的全部的颤动精力被导出，由作为地震刺激假定白噪音。连接参数的效果例如连接僵硬比率并且连接抑制比率，然后在结构的颤动回答上被学习，并且最佳的连接参数被获得最小化独立单体塔或积分的颤动精力结构。最佳的连接参数上的天空桥举起位置的影响也被讨论。最后，最高的排水量 PSD 的分发特征和结构的回答，由 El Centro， Taft 和人工的波浪激动，在频率和时间领域被比较。在连接的任何一个结束的连接参数交互地影响塔的回答，这被发现。最佳的连接参数能极大地在他们的地震减小有效性上改进抑制连接，但是是不能的同时把塔的地震回答归结为最好的程度。从简化 3-DOF 模型导出的最佳的连接参数为一座天空桥与 dampers 连接的二有多层楼的结构是适用的，这也被显示。获得的地震减小有效性与不同天空桥团比率从 0.3 ～ 1.0 变化。例子结构的排水量回答被约 22% 与天空桥连接减少。

英文摘要：

Based on a simplified 3-DOF model of twin-tower structure linked by a sky-bridge, the frequency response functions, the displacement power spectral density （PSD） functions, and the time-averaged total vibration energy were derived, by assuming the white noise as the earthquake excitation. The effects of connecting parameters, such as linking stiffness ratio and linking damping ratio, on the structural vibration responses were then studied, and the optimal connecting parameters were obtained to minimize the vibration energy of either the independent monomer tower or the integral structure. The influences of sky-bridge elevation position on the optimal connecting parameters were also discussed. Finally, the distribution characteristics of the top displacement PSD and the structural responses, excited by El Centro, Taft and artificial waves, were compared in both frequency and time domain. It is found that the connecting parameters at either end of connection interactively affect the responses of the towers. The optimal connecting parameters can greatly improve the damping connections on their seismic reduction effectiveness, but are unable to reduce the seismic responses of the towers to the best extent simultaneously. It is also indicated that the optimal connecting parameters derived from the simplified 3-DOF model are applicable for two multi-story structures linked by a sky-bridge with dampers. The seismic reduction effectiveness obtained varies from 0.3 to 1.0 with different sky-bridge mass ratio. The displacement responses of the example structures are reduced by approximately 22% with sky-bridge connections.