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长治市广播集团新闻大楼是带有钢桁架连接体的双塔式组合结构。为考察连接体不同位置对主体结构的影响,建立了7种不同连接体位置的结构模型,进行了静力、弹性和弹塑性比较分析。结果表明,在结构满足承载力、延性和其他响应条件下,连接体位于塔楼总高度的2/5~3/5处时整体的受力较好。由于连接体的存在,双塔中一个塔楼连接体处的地震剪力为全塔最大,而另一塔楼该处的地震剪力比较小,因此设计时必须考虑地震作用方向的不确定性,对连接体处塔楼的相关构件进行加强设计。
Changzhi Broadcasting Corporation News Building is a twin-tower structure with steel truss connectors. In order to investigate the influence of different positions of connectors on the structure of the main body, seven structural models of the positions of different connectors were established, and the static, elastic and elasto-plastic comparative analyzes were carried out. The results show that under the condition of the structure satisfying the bearing capacity, ductility and other response conditions, the overall stress is better when the connector is located at 2/5 ~ 3/5 of the total height of the tower. Due to the existence of the connecting body, the seismic shear force at one tower connector in the twin towers is the largest in the whole tower and the seismic shear force in the other tower is relatively small. Therefore, the design must take into account the uncertainty of the direction of the seismic action, The connection of the tower at the relevant components to strengthen the design.