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郑州兴港大厦为郑州航空港经济综合实验区新建办公、酒店、商业综合体项目,由两栋塔楼以及采用高位弱连接形式的连接体组成。在初步设计阶段,针对连体结构的特点,对几个结构关键问题进行了分析、设计与研究。对本工程连体结构采用弱连接连体结构体系的原因进行了说明。通过连体结构与单体结构的小震弹性时程对比分析得出,本工程连接体对两端主体结构的影响不大。对连体结构进行了罕遇地震作用下的边界非线性分析,为连体结构防震缝宽度的确定以及铅芯橡胶隔震支座的选择提供了依据。对大跨度连接体进行了人行荷载激励下的数值模拟,验算了连接体的竖向振动舒适度。
Zhengzhou Xingang Building is a new office, hotel and commercial complex project of Zhengzhou Airport Economic Comprehensive Experimental Zone, which is composed of two towers and a connecting body with high and weak connection. In the preliminary design stage, according to the characteristics of Siamese structure, several key problems of structure were analyzed, designed and studied. The reasons why the Siamese structure of this project adopts the weakly connected Siamese structure system are described. Through the comparative analysis of the minor earthquake elastic time history of the conjoined structure and the single structure, it is concluded that the connection structure of this project has little effect on the structure of the two ends. The non - linear analysis of the boundary under the rare earthquakes is carried out on the Siamese structure, which provides a basis for the determination of the width of the anti - vibration joint of the Siamese structure and the selection of the lead rubber bearings. The long-span connector is simulated under the load of the pedestrian, and the vertical vibration comfort of the connector is verified.