There are a large number of adjacent buildings in practical engineering application. The structure will collapse and impact the adjacent structures once the weak column is destroyed under seismic action, and, finally, the earthquake damage is aggravated. Material nonlinearity, initial imperfections, and contact problems in the process of collapse-pounding are considered, and the three-dimensional calculation model with unequal 8-story and 6-story height adjacent frames is established. The dynamic response of adjacent structures caused by collapse-pounding is investigated when there is a weak column at different positions in the 8-story frame, and the influence of gap size on the dynamic responses of adjacent structures is discussed. The results show that the impact force is larger when the weak column of the 8-story frame is close to the top of the 6-story frame; pounding increases the interlayer displacement angle of the 8-story frame and decreases the interlayer displacement angle of the 6-story frame in general; the impact force decreases first, then increases, and after that decreases with the increase of gap size; and the interlayer displacement angle distribution of the 6-story frame is significantly affected after the collapse-pounding of the 8-story frame with a weak column. The collapse-pounding problem of adjacent buildings under seismic action is very complex, which should be paid enough attention in engineering design and application.

中文翻译：

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地震作用下相邻框架结构的倒塌-动力响应

在实际工程应用中有大量相邻建筑物。一旦弱柱在地震作用下被破坏，该结构将坍塌并冲击相邻的结构，最后，地震破坏加剧。考虑倒塌-撞击过程中材料的非线性，初始缺陷和接触问题，建立了高度不等高和6层高的相邻框架的三维计算模型。研究了在八层框架中不同位置处有弱柱时，倒塌-撞击引起的相邻结构的动力响应，并讨论了间隙尺寸对相邻结构动力响应的影响。结果表明，当八层框架的弱柱靠近六层框架的顶部时，冲击力较大。撞击通常会增加8层框架的层间位移角，而会减小6层框架的层间位移角。冲击力先减小，然后增大，其后随着间隙尺寸的增大而减小。薄柱对8层框架进行倒塌-捣固后，对6层框架的层间位移角分布有明显影响。地震作用下相邻建筑物的倒塌问题非常复杂，在工程设计和应用中应引起足够的重视。撞击通常会增加8层框架的层间位移角，而会减小6层框架的层间位移角。冲击力先减小，然后增大，其后随着间隙尺寸的增大而减小。薄柱对8层框架进行倒塌-捣固后，对6层框架的层间位移角分布有明显影响。相邻建筑物在地震作用下的倒塌问题非常复杂，在工程设计和应用中应引起足够的重视。撞击通常会增加8层框架的层间位移角，而会减小6层框架的层间位移角。冲击力先减小，然后增大，其后随着间隙尺寸的增大而减小。薄柱对8层框架进行倒塌-捣固后，对6层框架的层间位移角分布有明显影响。相邻建筑物在地震作用下的倒塌问题非常复杂，在工程设计和应用中应引起足够的重视。薄柱对8层框架进行倒塌-捣固后，对6层框架的层间位移角分布有明显影响。相邻建筑物在地震作用下的倒塌问题非常复杂，在工程设计和应用中应引起足够的重视。薄柱对8层框架进行倒塌-捣固后，对6层框架的层间位移角分布有明显影响。相邻建筑物在地震作用下的倒塌问题非常复杂，在工程设计和应用中应引起足够的重视。